or SURAC IE*11R03..(U)A1 RREAOIIL TTPUTAL ...N 43 06 W 078 57 ELEV:590 FT KLAG PARTS A -F HOURS...

AD-AI86 573 N! ACAA F~~AL MEW YONRK li 061SE FM O MRHS V or 1/4SURAC IE*11R03..(U)A1 RREAOIILTTPUTAL FLI OHS CUE CIT A. 3e L!1

UNCLASSIFIED U94MtAC'-B / 2 MIL

il!121 11-4

RLE Fit.OPERATING LOCATION - A

USAFETACIn Air Weather Service (MAC)

00towET~ REVISED UNIFORM SUMMARY OF

-~ SURFACE WEATHER OBSERVATIONS

NIAGARA FALLS IAP NY MSC #725870N 43 06 W 078 57 ELEV:590 FT KLAG

PARTS A - F HOURS SUMMARIZED: 0000 - 2300 LST

I PERIOD OF RECORD:HOURLY OBSERVATIONS: JUL 77 - JUN 87SUMMARY OF DAY DATA; JUN 51 - JUL 60

OCT 61 - JUL 64NOV 68 - JUN 87

"Approved for public release;

Distribution Is Unlimited." FEDERAL BUILDING

DLET E ASHEVILLE, N.C. 28801. 2723 1 C- CT 198?

87 11 3 471

INIMD APP-OWAL ST3T

USAJ'TAC/DS-87/062 NIAGARA FALLS IAP NY (RUSSWO) Oct 1987, is approved forpublic release. There is no objection to unlimited distribution of thisdocument to the public at large, or by the Defense Technical Information

Center (DTIC) to the National Technical Information Service (NTIS).

This document has been revieved and is approved for publication.

FOR THE COMMANDER

SALTE S an TnScientific and Technical Information Program Manager

REPORT POCIDUEATIO PAG

la. Report Security Classification: UN $ASSIFIED

3. Distribution/Availability of Report: Approved for public release; Distribution

unlimited.

4. Performing OrSanization Report Number: USAFETAC/DS-87/062.

5. Nonitoring Organization Report Number: USAFETAC/DS-87/062.

6a. Nse of Performing Orgnization: USAFETAC/OL-A6b. Office symbol:6c. Udress: Federal Building, Asheville, NC 28801-2723.

11 Title: (RUSSWO) Niagara Falls IAP NY

12 Personal Author(s):

13a Type of Report: Data Summary13b TIm Covered: Jun 51-Jul 60; Oct 61-Jul 64; Nov 68-Jun 87.

14 Date of Report: Oct 87

15 Page Count: 312

16 supplementary Notation:

17 COSMTI Codes: Field--04, Group--02

i8 Subject Term: *climatology; *weather; meteorological conditions; winds;precipitation; temperature; visibility; barometric pressure; relative humidity; sky cover;psychrometric data; ceiling; Revised Uniform Summary of Surface Weather Observations(RUSSWO); Niagara Falls lAP NY; New York; USNY725870.

19 Abstract: six-part statistical data summary of surface weather observationsfor: Niagara Falls IAP NY. Summary consists of: PART A, Weather Conditions andAtmospheric Phenomena; PART 3, Precipitation; PART C, Surface Winds; PART D, Ceiling andVisibility; PART E, Psychrometric Summaries; PART F, Pressure Summaries. See USAFRTAC/TN-83/001 (ADA132186), An Aid for Using the Revised Uniform Summary of Surface WeatherObservations (RUSSWO) for complete description of contents and instructions for use. -

20 Ketribatiom/Availability of Abstract: Same as report.

21 Abstraet Security Classification: UNCLASSIFIRD.

22a Em of losapemble UdIvdeel: Marianne L. Cavanaugh22b Itelmt (616)256-262522c Office syml: USA1KTAC/LDD

Is N 1473 t3~ASsivm

1I Um I

DUPAR18M OF THE AIX FC9USAF ENVIRONMENTAL TECHNICAL APPLICATIONS CENTER (MAC)

SCOTT AIR FORCE BASE, ILLINOIS 62225-5458

FROM: LDD (Mrs Cavanaugh AUTOVON 576-2625) 26 Oct 1987

SUBJECT: Input Documents

TO: DTIC-FDAC

The enclosed reports are submitted for input into the DTICsystem:

(RUSSWO) NIAGARA FALLS IAP NY USAFETAC/DS-87/062(RUSSWO) GRAFENWOHR AAF GERMANY USAFETAC/DS-87/063

MARIANNE L. CAVANAUGH 2 ATCH:Librarian AS SHOWN

Accesi.; For

NJTIS CpA&I,D)TIC ..!%B

J *Stf;. *'.I.. .... ...

Dist1:ItI1 UU111O ISSIsSS SSSSSS M W00

m mana uu uu ssss s sss s SSS M M 0000a man i u SIS SIS Ss SS W 0 00

ERU US W IsS S S s u M 0 00:toIh no uu UW S SI uM MU o

magMNRm viiu ss iSSm 00 a0

ORNMORN v AE NSAFLS SAP vu

PERIOD or RECORS: l4Ou*%Su IUNzCD& 0000-2300 LIT[

NOUSLY OBSERVAT ZeuSt JUL I? - JUN 37

IUNAS OF CAT 0*1Mg JUN S1 - JUL 60, OCT 61 JUL G4, NOV 0 JUN 61

MEN CONVERSION LOT 10 GMT$ #S

( DATE M UDCUS 30 SEP 1937

1At

OL-AlusaFeTaclosClaMS REVISED UNIFORM SUMMARY OF SURFACE uuWEHE OBSERVATIONSSHREVILLE WC 24101

HOURLY OBSRV*IIONSi ALL RECORD O4RHECORD SPECIAL OBSERVTIONS RECORDED ON IE AWS FORMS 10110A AT SCHEDULED HOURLYE WALS.

SUMMARY OF GAT CAT& IDILY OBSERVAUIONSI: DATA COMPILED FROM ALL AVAILABLE OBSERVATIONS WHICH INCLUDES HOURLYOBSERVATIONS AND BAIL? MA RECORDED IN COLUMNS 66-T3, &US FORMS 10t10A.

* DESCRIPTION OF SUMARIESS POIRECIM EACH PART Of THE RUSSus IS A BRIEF DISCUSSION OF THE SUMMARY INCLUDING THEMNKICOF PRESENTATION.

STANDARD 3-1HO0R TIME BROUPS3 INt ALL. SUMMARIES SHOWING DIURNAL. VARIAIIONS, WE SUMMARIZE DATA USING THE* FOL~jIO CRST -HOUR TIME PtR1005 IN LOCAL STANDARD TIME: 0000-0200, 0300-0500, 0600-000, DO-IlOD.

A20 0 S1700oD 1800-2000.* 2100-2300 LIT.

FOR A BETAILED DESCRIPT ION OF EACH SUMMARY WITH EXAMPLES AND EXERCISES ON ITS USAGE, SEE USAfETAC/TNA8301, 'AHAID FOR U31NS THE REVISED UNIFORM SUMMARY Of SURFACE MEATIER OBSERVATIONS" gRUSSWO1.

TABKE or CONTENTS

STATION HISTORY

PART At WEATHER CONDITIONS AND ATMOSPHERIC PHENOMENA SUMMARIES

PART Is PRECIPITATION, SNOWFALL* AND SNOW DEPTH SUMMARIES4 !PART C: SURFACE MIND SUMMARIES4 PART 0: CEILING VENSIVS VISIBILITY AND SAY COVER SUMMARIES

PART to TEMPERATURE AMl RELATIVE HUMIDITY SUMMARIES

PART F: PRESSURE SUMPARRES

AMSMSC NUMBERS TNIS NUMBER IS THE AIR WEATHER SERVICE MASTER STATION CATALOG NUMBER. THIS MNMBE IS COPPRISCO OF

THE NN* NUMBE WItTHE4 ADDTION IF A SUFFIX 1O THROUSH 91. IN CASES MIERE THERE IS NO DESIGNATEDO MNSUMBER,A 5-01611 NUMBER IS CRIATES IN AGREEMENT WITH WHO RULES PLUS A SIXTH 01611. THESE NUMBERS ARE ALSO REFERRED TOAS DATSAV OR USAFETAC NUMBERS WHICH UNIQUELY IDENTIFY MORE TPAN 15.000 REPORTING STATIONS WORLD MIVE.

4 pol

vi

p"----. .

7=U27 ym V"S3 -1M43706 7W078 57 1790 A

STATION LOCATION ANDINSTRUMENTATION HISTORYV~ ~~~ in~m Lwow guw U iru Lt(

I iuj ms~ NLPUNY Ar am51 MWr54 N 43 06 v9078536 5"9 556 34

r Aug 60 20 oab4 Sm A? 21 Oct61 use 62 Sm V 073 57 3m 94 24

A? gmn 63 Jan 62 Sm 8mm su 625 24a? ftb 62 Jul 63 Sm am som am 5-31

Fm ?an 62 3962

5 - AVwu oat6 Ju m su 25 2

-V _&_M I" ____ h_ am 64 wn mmmvw m

1r ion 71 innts 82 8uo of 3rn 520li 24o 2

2 wi La 54V lean AUK 3om baL aua KAM~ mm 12.5

3 AM 55 lestei am V easef barn egmum- s S

4 mw 56 toos6 Oa to ot 00 ept*eaw Ur am 0 ft

S ms, 55 Istm 200 ft ad an 404rn of AH/U0- FA.-2 12 ftto WON, *a ". my.

6 1*00 $a m60ftH ofe- Sm Sm smn

.. . ...

kJ~ - -- -- ~---- ------- ~- --- __ _4_

1~-j

.1ppp141A RRRRRT T TTIIAAA

ppppppppp ,AAAaa -muffhfhm TITTITITIT AALA

pp pp A L * *Rit A A

pp P p A I A E ERTI :A

P pPPPP I AA ELESUR TI AL A LAPP"P"P AAAAAAAA DONRE TI LLLLL

pp AL A LAA Re Re TT AL A

*.pp AL AA R T A: AA

pp ap AA Re Re TI AL A

A I

A-i-i

.md fA

OE11E CO010 AND0 ATOSPIOEMIC C PEEN SUMPARIES

WEATHER CONDITIOUS sUmAIT

1. A PERCENTAGE FREOUENCT OCCURRENCE SUMMARY Of VARIOUS ATMOSPHERIC PHENOMENA AND OBSTRUCTIONS TO VISION.I2. DATA BASED ON HOURLY OBSERVATIONS.

3. SUMMARIZED BY T14E STAUSDARD 3-HOUR TIME GRO0UPS BY MONTH, MONTHLY AND ANNUALLY IALL YEARS COMBINEDI.

ATMOSPHERIC PHENOMENA SUMMARY

I.A PERCENTAGE FREQUENCY Of DAYS SUMMARY OF VARIOUS ATMOSPHERIC PHENOMENA AND OBSTRUCTIONS•D VsION.

2. DATA BASED ON SUMMARY OF DAY DATA.

3. SUMMARIZED BY MONTF WITH ALL HOURS &NO ALL WEARS COMBINEO.

, " !DEFINITIONS 3

THUNOERSTORNS: ALL REPORTED THUNDERSTORMS. TORNADOES AND NATERSPOUTS.

RAIN AND/OR DRIZZLE: ALL REPORTED RAIN AND OR DRIZZLE FALLING TO THE GROUND BUT NOT FREEZING.

FREEZING RAIN ANDOJDR FREEZING DRIZZLE ISLAZE)s ALL REPORTED FREEZING RAIN OR FREEZING DRIZZLE.

SNO ANOIR SLEET. SNOW INCLLGING SNOW PELLETS AND GRAINS, ICE CRYSTALS AND PELLETS. AND/OR SLEET lICE PELLEISI.

NAI L ALL REPORTED HAIL.

ALL PRECIPITATION, THIS CATGOR4Y INCLUDES ALL OBSERVATIONS REPORTING PRECIPITATION. BECAUSE MORE THAN ONE TYPEOf PRECIPITATION MAY APPEAR IN A SINGLE OBSERVATION, THE SUM OF TME PERCENTASES IN THE INDIVIDUAL COLUMNS MAYEXCEED THE PERCENTAGES IN THIS COLUMN.

FOG: ALL REPORTED FOS. ICE FOG AND $ROUND FOG.

SMOKE S NOIO NAZEs ALL REPORTED SMOKE, HAZE AN ANY CONNINATION TtEREOF.1

BLOWING SlCiw ALL REPORIEB BLOWING SNOWS INCLUDING DRIFTING WHEN REPORTED.DUST ANIOR SANO ALL REPORTED DUST, SAND. BLOVING DUST, SLOWING SAND AND ANT COMBINATION TPEREOF.

Sft ATMOSPHERIC PFE[OMENA SUMMARY #OAYS WITHI INCLUDES ONLY THOSE REPORTS WHEN THE PHENOMENA

( )VISIBILITY LESS TFAN S ig MILES 4I000 METERSl.

ALL OBSTRUCTIONS TO VISION$ INCLUDES ALL REPORTS OF OBSTRUCTIONS TO VISION IFOG THRU DUSTISANDIANl BLOVING SPRAY. BECAUSE MORE THAN ONE PHENOMENA PER OBSERVATION NAY OCCUR, THE SUN OFTHE IOIVIDUAL COLUMNS MAY EXCEED INIS COLUMN.

* i.

"': IA

N."'

. . .. . .. + +,. _. , *.,*"

9 + ,:. % 1 ,*.. ! + .** , .

, , + . ' py,• "

1. A VALUE IN THE TABLES OF ".0" INDICATES LESS THAN .051 OCCURREN4CE WF4CH IS USUALLY ONLY ONE OCCURRENCE

2. METAN STATIONS IBEEINNINS IN JAN 19681 AND SYNOPTIC REPORTING STATIONS RECORDED ON THEAUS FORMS 10/10A AND TRANSMITTED LONOLINE ONLY THE HIGHEST ORDER OF ATMOSPHERIC PHENOMENA OBSERVED.BEGINNING IN JAK 1970. METAN STATIONS RECORDED ALL OESERVED PH4ENOMENA SUT CONTINUED TO TRANSMIT ONLYTHE HIGHEST ORDER. FOR EdAPPLE, If THE OBSERVATION CONTAINED RaIN, FOG AND SMOKE, ALL THREE WILLAPPEAR on T HE A US FORMS 101 IDA, EUT ONLY THE RAIN WAS TRANSMITTED LONGLINE. THEREFORE ONLY THE RAINAPPEARS IN OUR EATA EASE FOR HOURLY SUMMARIZATION. THIS PRACTICE EFFECTS THE PERCENTAGES IN THE TABLES.

-I

'vL

-- domma.

i --• -- , -- . . . . . ... _ _ _ _

I !,

GLOAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF NEATHE" CONDITIONSUSAFETAC FROM HOURLY ObSERVATIONSAIR WFATHFR SERVICE/MAC

STATION NVLVER: 725"b7 STATIO NAME: NIAGARA FALLS TAP kV PERIOD OF RECORD, 78-8?MONTI.: jAN

RAIN FRZING SNOW I OdS S4OKE DUST % Os$HOURS I TSTMS C/OR RAIN E/OR HAIL IITF FOG C/OR BLOWING EOR ,,LBSI TOTAL

2ILSTI ORIZZLL g/op SLEET PRArIP HAZE SNOW SAND 10 OBSI DRIZZLE VISION

cc-02 6.,e 1.9 456 S.1 11.8 1.6 6.6 19.0 930

c3-CS 5.1 2.2 46.7 S2.7 13.1 .6 7.1 ;0.1 930

-. 3 1.5 46.6 !0,5 15. 1.0 7.2 23.3 930

.C.11 5- st .6 43.5 22. .2 s.1 T.s 33.s 10

. 1- 6.1 09 39.6 %5,.S 17.1 6.3 8,4 !0°3 930

1 -17 5.1 Lou 39.6 4.9 16.7 6.0 10.% 31.5 930

19-20 I3.1 .8 642.0 465o3 11.1 3.9 7.6 ;1o0 930

21-23 I 3.9 16 . 63.0 46.0 9.8 3.0 78 19.6 930

TOTALS I %.v 1.3 63.1 4iA. 16.7 3.6 7.8 26.8 7660

............................................................................................................................................

STATION NUMPLR: 725287 STATICK NAMEs NIAGARA FALLS TAP NY PERIOD OF RECORD: 78-87MONTH : FEB

.. ........................................... ...........................................................................................I Rath FAING $ tNR 08S SMOKE DUST I OBS

HOURS I TSTS &/OR RAIN LION HAIL WITH FOG C/OR SLOWING I/OR U/CBS1 TOTALILS1 I r-RIZLL OCR SLEET PRtCIP HAZE SNOW SAND 10 Ob

I DRIZZLE VISION.................................. .................................................................. ....................

Z-r2 6.b .S 32.6 ?9.9 15.6 1.S 5.0 ;1os 86

L.-r$ b.L .A 33.3 39.7 16.7 .7 q? 21.5 86

C6-C8 7.3 J.s 35.2 43.3 23.6 1.3 3.5 i6.0 846

Cq-l3 7 .1 .6 32.5 '9.8 74.5 8.6 4.4 3%6 816

11-6I ?,, .1 29.? 36.b 16.8 9.8 S*. !0.1 86

5-.1 . 26 .l63. 1S.0 1.0 58 ;1.1 846

(.18--C 7.6 ,? 23.z 11.6 13.0 5.3 S.2 ;2.6 846

21-73 ..1 28. 1 I,.6 13.t 2.6 6i.S 10.3 866

T.JOVALS 1,. .6 19.9 T..2 IT * 4t.6 6.9 iS.S 6768. ................................................................................ I

• ee ee•le • • e °o oo e

'A

l, .. , - .. .....................

GLUAL CLIMATOLOGY BRANCH PERCENTAGL FRECUrNCv Of OCCURRENCE OF kEATFER CONDITIONSLSIDETAC FRO" IOURLY ObSLRVATIONS

, AIR WEATIEp SERVICEfMAC

4 STATION NUPPEP: 725287 STATION NAME: NIAGARP FALLS TAP NY PERIOD OF RECORD: 78-a7MONTH: MAR

...............................................................................................................................................MAIN rRZING SNOW I OBS S.OKE DUST % OS

I. IOURS ISTMS &/OR RAIN /OR 6AIL Wit l FOG &/OR BLOWING &/OR MICBST TOTALILST) DRIZZLE 6LOR SLEET PRECIP HAZE SNOW SAND 10 OBS

DRIZZLE VISION

...............................................................................................................................................;j-Dz ,,, 9.1 .5 17.4 26.7 15.3 1.T 1.1 17.1 93C

07-OS .2 9.3 .4 18.9 27.0 15.9 .2 1.0 17.0 930

06"0 7.6 .4 18.6 7.9 7.2 2.0 1.2 E9.Z 930

r.-ll ,2 8.L 1.1 18.4 26.0 22.7 5.2 2.0 28.6 930

12-1 I 9.; .6 14.3 23.1 14.8 4.4 1.6 9.9 930

15-37 , 3 10, 1.0 12.0 '2.4 2.6 6.8 1.1 19.4 930

1q-o70 .2 10.9 .S 11.9 23.0 15.7 3.2 .9 18.2 930

21-23 .1 10.4 .1 12.9 2Z.8 15.6 2.0 .4 17.0 930

................ ............................................... .....9!......156............246.... 01..... 31..... 12............ i:3 .... 744.T OTALS I.1 9.3 ,6 1S.6 24.6 t7.S 3.2 1.2 E0.A 1440

STATION NIIMBTER: 775287 STATION NAME: NIAGARA FALLS lAP NY PERIOD OF RECORD: 78-87MONTH: APR

...............................................................................................................................................I RAIN FRZING SNOW % OBS SMOKE OUST % Os

IOUDS I TSTMS 91OR RAIN C/ON lAIL WITI FOG 6/OR BLOWING &/OR W/CBST TOTALILSTI I DRIZZLL /OP SLEET PRECIP PAZE SNOW SAND 10 OBS

i DRIZZLE VISION................................................................................................................................................

.4 lb.4 5.8 21.3 12.4 .4 .8 13.7 900

.-O6 ,3 13.4 .1 7.0 20.1 15.3 .3 .4 15.7 900

I-A .4 12.7 .2 6.1 18.8 12.3 1.8 .6 23.4 900

1- 1 . 1.9 .2 5.0 16.6 14.1 2.9 .4 17.0 900

17-14 .2 11.1 4.3 16.2 8.0 2.0 .6 .2 10.3 900

IS-1 .3 13.6 4.3 11.3 .1 3.2 .7 .3 11.6 900

112, I2 11.7 4.0 14.9 9.9 3.6 .? 12.9 900

a.-23 I,. 1,1 7 17.7 9.4 1.3 .6 10.6 900

TOTALS S. 13o .1 53 17.7 12.3 1.9 .6 .1 14.4 7200. . .....................................................................................

III;.- - ......

. , ,

uLOBAL CLIMATOLOGY BRANCH PLRCE14TAGE FREOUENCY or OCCURRENCE or WLATI-EP CONDITION*': SAFEIAC FROM HOURLY TUSLRVATIONS

AIR WEAT EI SERVICE/MAC

" TATION Nt'ECR: 725287 STATIEN NAME, NIAGARA FALLS IAP NY PERIOD OF RECORD: 78-87MONTI-: MAY

.................................................................................. ... ;... ..............R AIN FRZIJG SNOA S OBS S..ONE uT 8

.OUrS I TSTMS CIOR RAIN &/OR FAIL WIM- FOG /OR BLOWING E/OR A/CBST TOTAL

ILS71 j DRIZZLL C/OR SLEET PRECIP HAZE SNOM SAND 10 Ds

DRIZZLE VISION........... ... . . . . . .. . . . . . .. . . . . . . .. . . . . . .. . . . . . .. . . . . . . .. . . . . . .. . . . . . .

I-.4 9.V 9.9 12.7 .3 13.0 930

UT-C5 .6 9.1 9.7 19.4 .6 19.8 930

..'6-flA .. 31.5 .3 11.8 22.5 6.3 17.3 930

- .3 11.c .3 11.4 11.2 8.4 18.4 930

8- ,8 9.6 9.6 7.6 7.2 13.9 930

1-17 1.6 9.7 .1 9.7 6.1 6.8 12.2 930

12-20 1.C 10.1 10.1 7.6 8.5 14.9 9!0

21-23 I.C 10.5 11.S 8.8 2.9 10.6 930

TOALS .7 l). .1 10.3 12.0 5.1 16.3 T440

,TAWIeh NUPJBTR: 75 287 STATICN NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 78-87MONTH: JUN

I RAZN rRZING SNOW I OiS S"ORE DUST % 08SVUURS TSTMS L/OR RAIN C/OR PAIL WITH FOG C/OR BLOWING C/OR A/COST TOTAL

(LST) I DRIZZLt C/OR SLEET "RECIP FAZE SNOW SAND 10 0esDRIZZLE VISION

.... .... ... .... ... .... .... ... .... ... .... .... ... .... ... .... .... ... .... ... .... .... ... .... ... .... ...

n.-cZ I.u 7.6 7.6 13.1 3.6 16.3 900

(.3-OS 1.2 7.4 7.4 20.8 4.2 i3.9 900

6t..-ru .6 7.L. 7.0 24.3 ?U.6 22.3 900

'.9-I1 .7 7.4 7.4 I.8 14.3 ;3.6 900

I'-14 I.A 7.6 7.6 5.3 13.4 18.3 900

I -17 1 .3 au 6.8 5. 15.0 19.4 900

I .F 7.j 7.3 7.1 13.9 19.8 898

1-73 2.3 o n.0 10.7 5.7 15.3 897

TOTALS 1.3 7.6 7.L 1l.1 10.1 ;1. 7195

.... ... ... ... ... ... ... .... ... ... ... ... ... ... ... .... ... ... ... ... ... ... .... ... ... ... ... ... ... ...

(i.OaAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURREJCE OF EATPER CONDITIONSLSAFEIAC FRON NOURLY OASCRVATIONS

. AIR 4EATI-ER SERVICEIH&C

STATION NUMBER: 715287 STATION NAME: NIAGARA FALLS IAP NY PEPIOD OF RECORD: 77-86MONTH= JUL

I RAIN FRZING SNOW I OAS S-OKE DUST I assFOURS TSTS &/OR RAIt &/OR AlL WIl| FOG lOR BLOWING IGR 66851 T.OTAL15(LSTI DRIZZLL C/OR SLEET PRECIP PAZE SNOW SAND 10 08S

DRIZZLE VISION

c.0 6., 6.2 13.9 9.7 20.2 930

!C!-O5 2,7 1i 7.1 21.6 10.2 28.S 930

Z6-PA .6 5.b 5.8 25.3 20.0 40.2 930

ul-Ik 1.0 5.S S.3 9.0 23.1 30.5 930

11-1I 1.2 6.2 6.2 4.9 18.1 1.8 930

1.-17 4.9 9.5 4.5 3.9 18.7 i1.9 930

18-20 I 1.8 .7 9.7 9.6 19.2 23.2 930

21-23 1.9 b.2 6.0 8.7 11.9 17.7 930

TCTALS 1.6 5.1 5.7 11.5 16.3 is.9 7990

STATION NUrlJEP: 725 187 STATICN NAME: NIAGARA FALLS IAP NYI PERIOD OF RECORD: 77-86MONTH: AU.

I RAIN FRZIP;G SNOW I O6s SPOKE DUST 2 OBSFOLPS J TSTMS &/OR RAIN C/OR P'AIL WITH FoG C/OR BLOWING C/OR 8l65 TOTAL

ILSTI I DRIZZLE C/OR SLEET PRELIP VAZE SNOW SAND TO 0SsOPIZZLE VISION

............................................................................................................................-'-!2 1.7 7.0 ?.a 7C.2 1.0 23.5 930

ri-cS 2.8 7, 7.5 ?6.7 5.9 ;8.2 93U

06-06 I 1.7 6.8 6.9 ?3.7 15.6 3.9 930

Cl-Il 1.3 5.7 5.7 12.9 ?3.1 31.6 930

1l-l9 1.5 6.6 b.8 5.5 ?2.0 i6.3 930

11 1 1.? b.1 6.1 9.1 19.2 ;2.9 930

14-20 1.6 .5 6.6 7.5 19.1 ;9.8 93,

zI-2 I 1.1 .6 6.k 13.7 11.9 21.9 930

TCTALS 1 1.7 .7 b.1 IS.L 16.9 ?.6 7t1C

k

, .'•-4,op "',

GLOTIAL CLIMATOLOGY BRANCO' PERCENTACE FREQUENCY OF OCCUPRENCE OF EATPfEP CONOITIONSuSAFETAC FROM HOURLY OSERVATIONSAIR 6EATHR sERVICE/MAC

STATION NUHOR: 7252o7 STATICN NAME: NIAGARA FALLS lAP NY PERIOD OF RECORD: 77-86MONTH* SEP

...........................................................................;;sS4..........................HOURS| RAIN VRZ1NO SNOW I OpS S OKL DUST 8 081

Nouns ISTMS &/OR RAIN &/OR HAIL WITH FOG EIOR BLOWIN G 9/OR W/CBS1 TIAL(LSTI DRIZZLL &/OR SLEET PRECIP PAZE SNOW SAND 10 CBS

DRIZZLE VISION

CC-02 2.2 11.11. 17.3 3.1 19.2 900

CS-OS 1 1.6 1.i 10.1 21.2 3.1 ;2.9 9oo

c.6*-ce .8 12.1 12.1 30.9 8.9 36.0 900

L 9-11 1.2 10.1 10.41 15.1 11.2 21.6 900

l'11 l.C 7.a 7.8 8.8 10.9 19.1 900

15-17 1.0 6.4 6.4 8.1 12.1 19.2 900

* 1O-20 1.3 9.7 9.7 10.8 8.8 18.0 900

7 :1-23 1.6 11.1 11.1 15.3 3.7 11.3 900

* TOTALS 1.41 9.9 9.9 15.9 7.8 ;2.U 7200............................................................................................................................................

STATION NUMBER: 7?2s.87 STATICN NAME: NIAGARA FALLS ZAP NY PERIOD OF RECORD: ?7-86MONTV: OCT

............................................................................................................................................RAIN FRZING SNOW I OHS SMOKE OUST 1 O8s

HOUrS I TSTMS C/OR RAIN C/OR HAIL WITH FOG &/OR BLOWING 9/OR /?W0ST TOTALILST) I DRIZZLE &OP SLEET PRECIP HAZE SNOW SAND 10 OS

DRILZLE VISION

o.. .2 14.d .3 15.2 IS.3 .8 IS.? 930

- ''-0% I.*1 1111 .. 111.5 16.0 .6 16.5 910

L6-08 .3 12I. .1 12.7 23.3 1.7 i4.0 930

.11 .3 11. 11.4 18.1 6.0 Z2.11 930

12I-1 I * 9.9 * I IU.0 9.7 6.3 111.1 930

15-17 .2 11. .2 11. 8.6 5.8 13.9 930

I-20 .z 11.1 .0 I1.h 9.9 2.2 11.3 930

21-23 .2 il.b .4 I1. 11.0 .9 11.1 930

mm TOTALS .? 14.. 12.4 1 F4. C .9 16.2 7411C°.... .... ..... .... ......, .. .., .. .... ....__ _ _ _...e. ..... S .... °.... .... e *.. ........................eeoc ...,,,co

)/.

GLOBAL CLIMATOLOGV BRINC4 PRCLNTAGE FRECUEtjCT or OCCURRENCE OF WEAIHER CONDITIONSUSAFETAC rHOM gOURLY ObSERVATIONsAIR WEATI-E SERVICE/PAC

STT06NME:?Sb TTO4NAME: NIAGARA FALLS IAP NV PERIOD Or RECOPD: 71-66MONTHt NOV

RAIN FRZING sNO% D 0ES SPOKE DuSt O Des

FOURS TSTMS &/OR RIN LI/OR HAIL WITH FO C/OR BLOWING &/OR W/OST TOTALILSTi I ORIZZLL L/OR SLEET PRECIP HAZE SNOW SAND 10 Des

I OPIZZLE VISION.... ... .... ... .... ... ... .... ... .... ... .... ... ... .... ... .... ... .... ... ... .... ... .... ... .... ... ...tc-C2 18I.C .6 8.6 22.2 13.1 .6 .1 13.2 900

f!-'S .1 14. .3 8.6 22.9 12.0 .3 .6 13.1 9C0

rb-rB .1 12.6 .6 8.3 21.6 17.8 1.9 .8 19.8 Soo

L'-1I 12. ..8 9.9 22.9 18.6 5.3 .9 3.3 900

12-14 1 16.3 .6 8.6 246.8 15.7 8.8 .6 ;0.8 900

1-17 21.1 .4 6.8 27. 1 . 1 81.6 .6 .1 90

ip-20 .3 18. .1 7.3 25.9 13.9 1.6 16.0 900

21-23 15.S. .2 7.6 22.9 11.T 1.6 13.0 900

TOTALS .1 16.6 .5 8.2 23.?f 15.2 2.b .5 31.7 1200

.TArID T NLP3k: 125287 STATION NAME. NIAGARA FALLS lAP NV PERIOD OF RECORD: 7?-66

"ONTO: DEC

.........................................................................................................................................IRAIN rRZING SNOb, I OnS SPOKE DUST x 08$

HOURS TSTMS L/OR RAIl CiOR HAIL Ails, FOG /ORn BLOdING &/OR 11/b6| TOTAL

A ILSTI GRIZZLE L/Op SLEET PRECIP HAZE SNOW SAND 10 Os

.!DRIZZLE VISION

:2-f2 9.. .9 28.2 33.8 12.0 .3 8.3 16.5 930

'.?-C I Ia.. .9 23.7 !3.9 13.2 2.7 15.9 930

.1('8 I 11. .9 235 3,4.8 15.6 .6 1.2 ;0.1 930

E.1 I 21.. 1.1 26. !v. 7 21.1 3.8 3.8 ;1.5 930

1,28I11.1 1., 25.6 6.9 17.3 3.1 8.6 48. $30

13-17 11 . 1.3 28.9 3.1 29.9 %.1 8.7 i6.0 930

1;-2C .1 IC.5 1.2 21.1 !1.4 181.b .6 8.3 19.0 930

"1-23 i.d I. 21.8 T$, I ,3 :5 8:2 16.6 930

TT" l 1 ,1 28.5 3bL 16,U ,1.3 1880

. .........................................................................................................................

m'

GLObAL CLIPAIOLOG IRANCI- P[RCEkTAGL FRELLENv Of OCCLPMRLCE Of wEAiTHEP CONDITIONSuSAFTAC FRO" FOUQLV ObSERVA1TONS

AIR EAIH[pI SrR91CLIHAC

STATION NUPIAR9 I5267 SIATIC* NANE: NIAGARA FALLS 1IA MY PERIOD OF RECORD: 71-a76ONT$-: ALL

MAIN 61 iruF 5NOW OHS SNORE OjLSI 4 08

HNnUaS TSTMS £0 RAIN* COR HAIL WITH FOG 9/Op gLOWING i/0 MIS? TOTAL

ILSTI DRIZZLL C/1R SLEET ParCIP HAZE S NOW SAND 10 0es

DRIZZLE VISION

JAl' ALL iso.g 1"3 is3*1 6s.0 1.lis7 3.6 7.8 2is.8 76sis

FE E 7.1 .6 29.9 37.2 17.0 6.6 6.9 S.5 6768

PAP I* 9.3 .6 IS.6 2is.6 17.5 3.2 1.2 i0.8 T10

Apt, .3 13.0 .1 5.3 1?.? 12.3 1.9 .6 .1 16.6s 7200

"AV .7 10.3 .1 10.3 12.0 S.1 16.3 76is0

JUN 1.3 7.b 7.6 12.1 10.1 ;1.1 719S

JUL 1.6 S.) 5.7 11.S 16.3 i5.4 7660

AU11 I.? 6.7 6.7 15.6 IS.% 7I.b 76640

SEP 1.6 9.1, V.9 15.9 ?.a .2.0 ?200

0C I 12,; .2 32.6 1t.L * 2.9 16.2 76640

NOt .1 15.. .5 8.? 23.A 1S.2 2.6 .s 17.7 7200

DLEC u 0.5 1.1 16.5 lil.. 16.0 1.7 4.0 ;1.3 1440

TOTALS .6 9.6 .6 10.6 19.9 16.5 6.3 1.6 .0 ;1.1 87663

..........................................................................................................................................

' I

______"S ., . :" .

I L

GLOBAL CLIPATOLOGY BRANC1- PERCENTIE OF DAYS ITO' VPRIOUS ATMOSPF'RIC PHENOPENAUS ArT AC FROP DAILY OBSERVATIONSAIR ,E[l4.R SERVICE/P.AC

STAT10N NUMBER: 725287 STATION NAME: NIAGARA FALLS IAP t,1v PERIOD OF RECORD: $1-64. bk-87MONTI.: ALL

RAIP FRZING( SNOW % 08S .sOKE OL;ST % OBSI TSTNS L/OR RAIN L&OR HAIL WITH FOG &/OR SLONIN G &/OR Vig(8S7 TOTAL

emY lI. DRIZZLL &/OR SLEEi PRECIP HAZE SNOM SAND 10 OBSI RIWZLE VISION

..........................................................................................................................................JAN .7 26.6 7. 81.2 99.3 95.6 99.9 25.0 79.0 957

rEP I .7 27.3 4.8 71.9 oz.( 51.1 S5.0 19.7 79.6 87

MAR 3.9 38.5 9.5 5n.1 .9 69.3 98.3 91.9 8.7 (8.1 950

APR 9.6 S2.9 .2 18.9 .5 60.2 99.5 99.9 i.5 t3.1 925

-AV 10.9 S2.8 1.8 .8 52.3 S.6 53.0 t1. 951

JUN 19.2 99.6 .a "a.9 47.9 60.0 (o.% 942

JUL 18.7 43.V .5 93.2 98.7 68.6 79.9 930

AUG 20.2 96.1 .7 96.1 S6.9 68.0 7.7 868

SEP 1.0 98.11 .1 .2 99.9 52.3 59.9 71. 8a90

OCT 9.9 18.6 4.5 .6 51.1 5.5 93.9 (S.6 9C2

NOV ?.2 53.6 1.2 39.2 . 71.9 48.6 97.1 3.8 t9.1 910

DEC .9 3b.9 8.9 68.2 89.7 99.7 7.9 nS.1 75.1 960

............................................................................... .............. ............ ................ ...............1081 I 8.6 93.8 2.2 27.6 .9 62.3 98.7 99q.2 6.2 71.2 11009

"i I "

__ _ _ _ _ _

i~

L-.--- _ _---------

.... . .. . ... ... ... ... .... .. . . .. . .... - "! :i 4 ;

pp prAA

p:PPPPPPP AAALA RMRRRRA T1IIW ~ lS**

pp pp amAA A an A R R TT Be Be

pp p s aa A R" R 11TT5

pp1:aaaa A ARl TI emSI ess

PP AS a AR A II S I

P, FEUC PRECIPITATISN, SNOWUALL AN0 SNOW DEPTH SUNNMAIES

"' Pf *N&f FRIOUECV OF NVARIOUS SILT ANOUNTS OF PRECIPITATION ISNOMFALL AND SNOW DfPTH1 SUMMANIES:

*N(THESE SUNHARIES DERIV? FOPM SUMMARY OF DAY DATA.

.1 DATA IS SUPHAUIZED NONTHLY AND ANNUALLY WITH ALL YEARS COMBINED.

, OSPLAYCO ARga PERCENT Or DAYs VITH REASURAILE &NOUNS, A PERCENT OF DAYS WITH NO AMOUNTS, TRACES, GIVEN ANOUNTSt,1"

PEANSo GREATEST AROUNIS ANS LEAST AMOUNTS ITNE STATISTICAL VALUES AE NOT INCLUDED IN THE SNOWDEPTV SUNARI BECAUSE OF THEIR DOUBTFUL AIN LINITED VALUES..

ALSO PROVICEO ARE THE OBSEiVATION COUNTS.

A VALUE OF *.0" 1N THESE TlALES INDICA US LESS THAN .OS% WHICH USUALLY 1NO1CAIES ONLY ONE OCCURRENCE.

, EXWYSEE DAILY APUNITS OF PRECIPITATION ISNOWALL AND SNOW KPTHS SUMARIES

DATA DEIIVED F ,O" SUtNARY or O DATA

PRESENTED AMC THE lTRINEN DAILY ANOUNTS Of PRECIPITATION SNOWFALL AND SNOW DEPTH BY INDIVIDUAL MONICA AND YEAR.

ALSO PRESENTED ARE THE EANS, STANDARO DEVIATIONS AND TOTAL OSERVATIONS COUNTS.

AN ASTERISI " " PRINTED I THE TABLES INDICATES THAT THE 9LTEEPlE VALUE FOR THAT YEAR AN NORTHDENIVES FON AN INCOMPLETE NORTH CAI LEAST ONE DAY OF 14 NORTH IS PISSNiWS.

W1001 A *OI PAS VALID OtEVAIIOUNS REPORTED OUT N0 OCCUOIENCES, Ifis ARE DISPLAYED IW THE TlALESt

ETREPE OAILV PRECIPITATIONs ".00" ANALS UNOW FOR TPE PONT IHIIROTS-

ETtllEPC DAILY SNOWF.Lt ".0" EOUALS NONE FOR THE NORUTH ITE0N1T ,

ENTEPE DAILY SNOW SEPTH, "0" ElUALS NONE FOR THE NOTH IWSHOLE INCKSI

TOTAL NOWYNLI APSINS OF PRECIPITATION AD SNOWFALL SUNMAIES

OATA 1111V FOGD SUNARY OF ol DATA.

DATA PRESENTED DV YEAS Am NONT.

ALSO PRESENTED ARE TE NEANS, STANDARD DEVIATIONS AND TOTAL ORSERWVATON CoUTS'.

AN ASTERISK "a" IN 1t TLES INDICATES TPAT ONE o "ot OAS WER[ NISSINT FO TPU SORTV.

NO OCCRRENCES Fee nTHE PaNTH AnE INDICATiE DY ZERSS.

if TE ANOUNT IS A TRACE9 THEN "TRACE, IS PRINTED IN Tle TABLES.L

STATISTICAL VALUES SO NOT INCLUDE MEASUMENTS FRO INCOPOLETE MONTHS.

IL.

..LOAt CLIMIIOLOGY BRANCO. PERCENTAGE FR[0UrNCY OF OCCUPRENCE OF PRECXPITATIONUS AT Cl AC FROM SUIPAQV OF OAY ATAAIR W[AwER SERvICCIPAC

STATION NUMBERI 716267 STATION NAMhE NIAGARA FALLS TAP NY PERIOO OF RECORD: S1-64, 6*-I7

AMOUNTS IN INCHES

I I I .521 .o6I .11 5.26 1.s I i.al 2.1 I Sj.c I 10.01 OVER j I oAYSl TOTAL, OMfMLV AMOUNTSI I I T0I 1 O0 'o I to I To I 10 I 1 0 I 10 I T I, 1 I H

-ONIT I NONE |TRAC' .Cj I OSI . .1l .25 5.6O 1 1.001 2.501 S.00 1 10.001 2n.001 21.0O I PEAS I 0BS I" I I I I I I IS I I I I I MIS I I MAN GREAIEST LEASI

mJAN 10.6 J .:l 7.1 5-.3111.71 10.21 5.71 2.0 1 .% 1 1 59. 1 9s01 i.45 0.62 I.22

I . . S I IrE3 1 19.Z 1 27.A017., 160 9.915 11.1 5.51 3.1 11 .6 1 .1 1 I 5 546.0 I 8#015 2.33 %.5% s6

-aq 3G.c I ZS.11 S.1 .I1, 6.91 10.61 7.1 0.5 1 .6 1 At 09 1 9.30 2.00 0.9 .1sI I 5 5 5API1 39. 88.91 3.2 0.31 6.71 9.91 7.91 S.7 .3 2.0 1 901 .91 .2. IOS

I I I SI 1 .* 1 I I7I930 2,'l 0,1? 1.0

.A I blCl . 2.0 1 6.31 5.11 7.31 6.61 3.5 1I1.5 1 .1 1 12., 9161 ;.Is 0.56 .23JU, 5 . 1 1.7I.0 5I I I 5 I IIIJUL S.76 6. 1 0.01 .5 1 1.6 1,8 !* 28.6 5 9101 2.S9 5.75 TRACEI I S I I 5 I IIIIII

* AUG S3.6 1415 3.S 5.05 0.05 6.21 S.1 5.3 1 2.2 1 .5 15 31. 1 11651 3.61 0.96 .79I I, I I I I 5 5 5IIII

'rp r S.e I s6l 3.3 1 0 .111 7.01 S.85 S. I 1.3 1 .2 33.?1 I80 3.09 1.90 1.06S I I I I I I I 5 I I S III I

acC I 1 09. r 116.61 3.1 5 6.11 %.65 S .31 S.91 0.2 1 1.2 1 3%.% 1 9021 217 7.1 .265 I5 5 5 IIIS

S OV 1 27.8 1 22.t1 5.6 111.31 6.25 13.41 9.91 3.4 1 1.5 1 1 119.4 1 toll 3.23 7.S6 1.06J I i I I I IISII

OLC I1.2 I 27.C1 5.1 1.5 AI10.S1 11.71 9.61 3.9 .4 1 S.9 i 915 3.1S 1.7% 1.09ANN I I I

I "I

..- , . , - - -

GO 1. CLMAIOLOIT BRANCH LXTRELN VALUES Of PRECIPITATIONUSAF(IAC IFRO DAILY CBSER |8 3ONS)AIR14 WE114(8 SfVICEINAC

STATION NI'PER6: 775287 SlATION NAI1 NIAGARA FALLS lAP NV PERI0 Of RECOPD SI-6. 18-87

.. . . .. .. .. .. .. . . .. .. .. . . .. .. .. .................................................... ' ; ; ..................

24 HOUR AMOUNTSIN IN 1CHES."| -P-a-N-I -0..S. ALL

YEAR 1 JAR Fl i 4"A APR %AT JU4 JUL AUG 'SP OCT NOV LEC NONITS......................................................................:;.........................

51"I I .6 06 . . 1.,11 1:5S .53SZ ,SS .59 .9S "61 .96 .13 1.05 1.3 .90 .13 .59 .80 1.0353 .40 .0 2.30 .60 .86 .*1 1.5 2.01 1.70 .29 .67 .:1 2.3050 .Sj 3.3 I.o .78 .38 .77 .15 2.79 .6T 2.2 1.03 ,SS 3.3ss .34 .54 1.33 69 1.02 .63 1.0o 1.80 .85 1,SS .37 .03 1.8056 .62 .70 .63 1.13 .95 .Z2 .81 2.60 .70 .51 1.01 .83 2.6057 1.031 .3 83 .98 1.86 2.52 .93 Z22 .96 .68 .06 .97 2,52sO .76 *9 .15 .6% .69 .09 .0 1.72 .61 .30 .60 .20 1.7259 i .35 1.01 .67 .72 .22 *66 .86 3,20 2.00 .80 .06 .87 3.2060 .36 .91 .05 .07 .69 .96 6761 0.2 .73 .7162 *.80 *RACE 0.63 0.s% 1.1063 I .36 .17 .69 3.b .70 .7 .93 1.86 .36 .21 1.0S .20 1.86640 6 .13 1.00 .9% 1.12 .55 •6.968 #1.37 .769 1.10 .22 .03 .73 1.1 I , 1.20 .86 09 .35 .76 .19 1.207c o,0 .61 .0 .93 .0 1.b4 1.09 1.58 *So .68 1.03 .69 1.6071 .27 .51 .30 .52' .0 1.96 2.3 2.28 .S .96 .0 .77 2.2872 .27 1.0q .9S s 1.12 1.J% .0S .98 I.U9 1.09 .61 .5 1.6?s . b*Z 1.32 .88 .50 1.37 .71 .71 .86 1.0s 1.bO .92 1.60vs .01 .90 .63 .96 1.20 1.76 1.05 1.12 .57 .32 1.23 1.11 1.8

A75 i S3 .60 .87 .05 .57 1.32 ,60 1.53 .80 .72 .6 .72 1.S316 1 .57 .58 .69 1.18 .96 1.;? 3.22 .0 .73 .59 .27 .35 1.2277 .4b .16 .42 .9? .601 b1. .bs 77 2.53 .72 1.18 1.00 2.53&lb .7S .19 .77 .11 .76 1.31 .67 I.7C 1.38 .87 .43 .13 3.1079 .67 .28 .3 •6? .i ,ST 1.51 .63 0.36 .91 .SI .79 •036to .77 .29 1.12 .86 *SS 1..8 1.19 .s5 .?? 1.88 .06 .6S 1.6861 .19 1.02 .52 .63 .67 1.90 1.37 .60 .83 .73 1.07 .9 3.9082 1.20 .05 .01 .71 .77 .91 .58 .67 .08 .4S .95 .72 1.2083 I .19 .52 .77 .03 .S .10 3*C. 3.03 .71 172 .59 1.20 1.72

.........................................................................................................................................

NOE * 4IASLD ON LESS I18N FULL 0N1TS

CONTINUED ON kEX1 PAGE...

.. .,

- , .

.1

.1 64 AnAL CLIMIATOLOGY BANMCH EXT PI.L VALUES OF PqECIPITATION

USAFET AC IFROP DlAILY OBSERVATIONSSAIR WtATiEN SERVICE/IAL

STATION NUMqPEP: 725287 S IAT ION NAMES NIAGARA FALLS TAP MY ~ PEPIOO Of RECORD: SI-64, ES-8?

II HOUR AMOUNT!, INi INCHESI .I-Ohk-TF S AL L

VEAP I JAN FEB "An APR "AV JUN JUL AUG SEP OCT NO V EEC RNWI.

es .67 1.31? loll .26 1.23 .06 .88 .79 .30 1.08 1.66 .514 1.66e6 as . sS. .83 .93 1.63 .73 1.62 .55 1.54 .62 .99 1.30 1.63q? .34 .25 .66 .57 .S6 I .E!

to.31 !3! *5v9 .*02 .271 .360 .5bl .827 .783 .838 .983 .808 .263 .727.4TOTAL 081 950 8418 930 900 93() 918 910 8be 8810 802 909 S61 10866

NOTE SIBASEO 0N LESS THAN8 FULL "ONINS1

-k AL

GL_ AL CLIMAIOLOSGV OAICP NUN7PLY PRECIPITATIONuSAFLTAC IrROM DAILY OBSERVATIONS)• *'. ' Ilo MLATHERI SENVICrfMAC

STATION NUMEKu: 76287 STATION NAMSla IAGARA FALLS aP NT PERIOD OF RECORO: 51-64. LB-B7.. ......... ....... .. .......... ........ ..................... . . ...........:" ° " '; ;TOTAL NOILVPPECIPITATION IN INC1S, -",,0 .N-T-H-S- ALL

Yt*8 I JA# FEB MAR APR MAY JUN JUL AUG SEP Oct Nov LEC MOLTH;. . ................... .. ................................... : : ;.... ............... .................... ...51 U2.1. 6.09 1.09 2.36 1.65 6.06 3.4 2J.52 1 4.13 1.98 2.8 i -2.10 3.11 .23 l1.8% 4.52 1.81 .26 1.06 2.86 27.31ss3 Z.27 1.$8 4.46 2.21 4.02 .60 3.61 4.8S 3.94 .49 2.53 2.07 33.07

SS4 2.20 4.1c 4.49 3.19 1.06 3.04 .SS 6.96 2.07 6.77 3.S7 3.81 44.415s !:3 2.7 3:92 3.00 27 . 6 2.23 5.46 2.30 7.18 2.07 2.7% 3S.91

*1 6 26 3 3.36 645 6.67 *67 3.59 7.36 3.13 .97 2.13 2:86 0.917 I 6a.6 1.91 1.65 .72 6.76 6.UI 3.69 .19 3.03 1.33 2.33 6.06 36.90

58 1 3.12 6.12 7S 2.36 lq6 1. 1 2.03 2.87 2.86 1.03 2.56 1.09 26.34S9 3 3.86 3.92 3.22 2.40 .70 I.5r 1.4z 6.8 S.13 6.54 2.30 3.73 3.30-60 2.37 4.56 2.00 1.66 5.08 2.15 1.6661 s.39 2.66 2.776 o2.65 OTR7AC '2.18 01.12 2.6263 I 1.79 .56 1.61 2.76 1.79 1.%6 3.50 6.00 1.06 .66 S.03 1.73 '27.9366 1.77 1.33 3.S0 1.81 2.98 1.75 *.9768 1lo63 3.0869 2.76 .60 1.S6 3.98 4.06 2.92 3.21 1.06 1.11 1.99 3:. 3.10 29.8670 1.91 2.36 2.15 2.19 2.69 6.28 Z.b% 6.61 3.29 3.36 3.30 3.17 35.9171 1.65 2.76 2.17 1.6 1.66 6.03 3.1b 3.90 1.S 2.25 2.10 3.57 29.8672 1.99 3.67 6.78 2.77 3.02 6.32 1.61 5.23 3.71 3.69 3.27 3.4b 61.3273 1.33 1.95 6.29 6.26 3.02 6.S9 1.78 1.50 1.7*8 6.16 6.79 6.20 37.6276 2.59 2.37 3.27 6.1.2 6.67 6.31 1.99 2.53 2.32 3.63 6.63 2.66 36.157S 1.66 2.61 2.62 1.68 2.27 6.62 1.32 6.98 2.52 2.17 2.66 3.SI 32.2076 2.87 2.26 6.96 3.32 6.09 6.66 3.96 1.01 2.36 2.62 1.08 2.29 3S.6677 1.76 .99 2.35 3.09 2.02 2.12 2.11 6.09 7.90 2.10 S.Os %.71 30.8978 3.33 1.62 1.73 1.39 2.32 2.36 1.93 3.6c S.57 3.72 1.52 2.OS 30.9379 2.961 1.68 1.70 3.56 1.67 1.68 2.66 3.69 5.60 %.1s 2.66 2.91 3q.76a0 1.71 1.65 3.21 3.7s 1.63 3.76 3..2 2.28 3.63 .11 2.17 2.961 33.664@1 1.63 6.30 1.76 3.63 2.S 4.3 S.78 2.36 3.6' 3.19 2.90 3.97 39.7692 6.33 1.68 2.6 2.51 3.63 3.58 1.72 2.66 2.01 1.37 6.92 3.39 36.3083 i1.32 1.26 2.7S 2.56 3.00 2.67 2.30 3.37 1.66 6.97 3.93 6.76 36.51

.............................................................................................................................................

NOT E 1945100 ON LE$S WTAN FI'LL MONfI-Sl

CONTINUED ON 106EX PAGEo....

iL

....... o-,I4~.

IS

GIOSAL CLINATOLOSY WRNC MOdTI-ly PRE CIP ITAII10NLSAF I I c IFPOM DAIL V ObSE RV TI IYS3AIR hgAT.[ SEP ICEI~a

STATION WUNP:~ 72S267 STATION NAME: w1I(.ARA FALLS RAP hY PERIOD Of RECORD: 51-64. kBSG?

TOTAL HONTl-t PRECIPITATION IN INCH4ES

A 7 .16 FEBAPR Pho T-H-s- ALL

....................................................................................... o.....o.....o.........o..............o..........

81 1.6 .42 2.q 23 .9 29.. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GLOBAL CLIPATOLOGY BRANCH PERCENTAGE FPEOUENCV OF OCCURNENC[ OF SNOWFALLUS AF E TAC FROM SUPPARY CF OAY DATA

AIR *EAIHER SERVICEIMAC

STATION NLIP8ER: 725287 STATION NAME: 41AGARA FALLS lAP NY PCPIOD OF RECORD: 51-64, b6-87................................................................................................................................

AMOUNIS IN I4CHESI I C.1 I 0.51 1.S1 Z.5 I 3.s #.5 I 6.5 I 10.5 I 15.5 1 25.5 I OVER 1 2 DAYSI TOTALI PONTHLY ANOUNTS

I TOI lo0 T To I T To TO I TO To I To I To I I W1TH IMOI.T NONE ITRACCI C4 . 1.61 2.6I 3.6 I 6.61 6.6 I 10.69 IS.6 I 25.6 I 50.H E 5.6 I MEAS I OBS I

I Ii I I I I I I I I I I ANTS I I MEAN GREATEST LEAST

I I I I I I I 1 1 1 1 1 1 1 1JAN i 16.1 i 33.2117.6 118.81 5.71 2.?1 1.91 .9 .9 1 .1 1 1 1 1 46.7 9491 1E.3 0.9 2.9

I I I I I I I I I I I I III

FEB I 2S.4 1 29.2116.8 113.11 f.e1 2.11 1.1 1.3 1 .7 I 1 .1 12.3 8 1 614. 39.0 2.6I I I ~I I I I I I I I III I

PAP I f9.2 1 25.2111.6 1 0.21 2.21 1.51 .61 .9 1 .6 1 1 1 1 1 25.6 1 9291 9.0 26.6 1.1

I I I I I I I I I I I I I I I IS IC 11.:1 3.3 1 2.81 1.01 .31 .61 .1 1.0 6971 .6 12.1 TRAcE

I I I I PAT 190.31 1.61 .11 1 1 1 .11 9601 TRACE .6 .0

I I IJUN 1I CI I I 9681 .0 .0 .0

J L i I I I 1 93 1 .0 .0 .0

I I93 Ini.O 1 8681 .0 .0 .0

I I ISEP 19.9 .11 1 I OI TRACE TRACE .0

I I I I II IOct 95.5 6.:1 .31 .11 .11 1 1 1 .61 931 .2 2.9 .0

iI I I I I I I I I INuV 66.1 1 19.31 6.1 1 S.11 1.31 .61 .61 .6 1 1 1 16.6 1 9091 t.0 25.5 TRACE

I I I I I I I I I I I I IDEC 31.1 1 29.414.S 112.61 S.71 2.SI 1.61 1.7 1 .9 1 1 1 39,1 9611 17.0 53.1 2.1

I I I I I I I III I I I I I

.......................... ...... . . . ........................ ..

A,1 I 1 1 1.71 .l .61 .5 I .3 I I I 16.9 I 1g966l 67.S

-!L

________

%' \'

%.A

GLOBAL CLIMAIOLOGV PRANCF' EXTRLPE VALUES OF SNOWFALLUSAFETAC IFROM DAILY ORSERvATIONSIAIR WEATHER SERVICEfMAC

STATION NUMBER: 725287 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 51-64. (8-87

i : .. ..... .... ...... ................ ................................' T..........................................................I NC E

26, VODR AMOUNTS IN INCI-ES-M-O-N-T---S ALL

YEAP JAN FEB MAR ApR MAY JUN JUL AUG SEP OCT NOV EC MONTHS

s5 I *.a .C .0 .0 .0 9.C .I

52 7.3 3.6 1.8 TRACE .0 .0 .0 .0 .0 TRACE *.6 6.0 8.053 !.5 2.1 1.0 *1.0 .0 .0 .0 .D .0 .0 7.1 7.4 74154 ! '.1 S.j 8.8 *.1 *.0 .0 .3 .0 .0 TRACF .1 .8 8.8

sS I 2.? 2.4 3.0 -1 .0 .0 .0 .0 .0 TRACE 3.7 4.5 4.5S6 I 6.1 6.9 *6.5 2.1 TRACE .C .0 .0 TRACE .0 3.6 3.6 6.957 6.7 4.3 3.0 3.0 .0 .0 .0 .0 *0 TRACE .9 2.8 6.7se 7.6 9.4 1.5 1.0 .0 .0 .0 .0 .0 .0 4.4 ;.1 9.459 4.3 4.3 6.7 .7 TRACE .0 .0 .0 .0 TRACE 4.6 4.6 6.760 2.6 9.1 4.5 .3 .0 .0 .361 *,0 .3 7.1

62 * .o .0 .0 *.0 *2.5 1.3 Z.8

63 *3.6 1.7 1.0 .7 .4 .0 .0 .0 .0 .0 3.0 2.4 *3.664 6.8 :.2 6.0 3.1 .0 .0 *,0

68 *.5 3.269 3.5 2.3 2.2 2.4 TRACE .0 .0 .0 .0 2.3 9.6 4.0 9.6

1U b.5 6.4 1.3 ,5 .0 .0 .0 .0 .0 TRACE .9 5.0 6.5

7, 1.9 5.1 3.4 1.2 .0 .0 .0 .0 .0 .0 2.3 7.0 7.072 I 2. 4.5 1.4 4.4 .0 .0 .0 .0 .0 1.2 5.0 !.4 5.473 1.7 2.1 5.2 .7 ,C .0 .0 *0 .0 TRACE 2.4 3.6 5.274 7.8 4.3 10.4 2.0 TRACE .0 .0 .0 .0 TRACE S.4 7.7 10.4

75 .9 2.1 2.0 4.2 .0 .3 .0 .0 .3 .0 2.1 S.8 5.676 I .8 .8 6.5 .1 TRACE .0 .0 .0 .0 TRACE 6.9 E.0 6.977 4.6 .8 4.2 .7 TRACE .1 .0 .0 .0 TRACE 1.2 f.4 8.4

78 1c.5 7.6 .7 I.S TRACE .0 .0 .C .0 TRACE 4.2 E.6 10.57A ? .6 8.4 1.9 3.7 .0 .0 .0 .0 .0 TRACE TRACE !.7 8.4

so 4.4 2.9 4.8 .1 .0 .0 .0 .0 .0 TRACE 1.3 4.7 4.80I 1.9 2.2 2.8 TRACE .0 .0 .0 .0 .0 TRACE .5 5.0 5.0P2 7.3 5.. 2.7 5.7 .0 .0 .0 .0 .0 .0 1.5 2.8 7.3R3 !.1 1.8 4.3 5 TRACE .0 .3 .0 .0 TRACE 1.8 1.9 4.3

NOTE * IeASE0 ON LESS THAN FULL MONTHS)

CONTINUED ON fEXT PAGE....

. . . . . ... .. _ .,,, . .

ILI

GLOBAL CLIMATOLOGY BRANCH EXTREME VALUES OF SNOWFALLUSAFETAC IFROM OAILY OBSERVATIONS)AIR WFATHER SERVIC/MAC

, STATION4 NUMBER: 75287 STATION NAME: NIAGARA FALLS TAP NY PERIOD OF RECORD: 51-64, 68-87

" " .. ... ... ......................................................... . ..2 i .......... .. .... ......................... ....24 HOUR AMOUNTS IN INCHESAL

S-iON-T -H-S- ALLYEAR I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV EEC MONTI-S

a4 I 2.3 16.4 2.7 .2 TRACE .0 .0 .0 .0 .0 1.2 3.9 16.485 I 4.9 3.4 3.1 1,5 .0 .0 .0 .0 .0 .0 4.0 5.6 9.6"36 I 5.8 6.4 4.7 1.2 .r .0 .0 .0 .0 .0 4.3 .7 6.4

87 I 4.. 7.5 .6 .0 .0..... ..................................................................... . .......................................................

PLAN I 4.54 4.58 3.83 1.51 .01 .00 .UO .00 TRACE .13 3.19 4.9j 7.51S.D. I 2.350 3.289 2.414 1.530 .073 .COO .000 -00 .000 .483 2.585 2.L4S 2.762

TOTAL O05 I 949 8Q8 929 897 960 9q48 934 868 840 903 909 661 10946................. ...............................................................................................................................

NOTE S (BASED ON LESS T-AN FULL MONTPSI

°

bLOPAL CLIMAIOLOGY PRANCH MONTHLY SNOWFALL. USAFEIAC (FRC DAILY OBSERVATIONSI

AIR wEATHER SERVICE/MAC

* STATION NUMBER: 725287 STATION NAME: NIANARA FALLS TAP NT PERIOD OF RLCORO: 51-64, (8-b7

TOTAL MONTHLY SNOWFALL IN INCHES-M-O-N-T -- 5- ALL

YEAR | JAN FE 1AR ApR MAY JUN JUL AUG SEP OCT NOV LEC MONTfS

............................................................................................................................1' 5 I *.n .0 .0 .0 .0 25.6 17.75z 16.6 8.3 3.7 TRACE 0 C .0 .0 v0 TRACE *.b 14.8 *65.5

53 I1.3 Ilu. 2.7 *1.2 .0 .0 . .0 .0 .0 13.5 7.7 *5.8S4 13.5 7.5 21.2 -. 1 *.0 .0 .0 .0 .0 TRACE '1 21.1 *63.5

SS 1?.0 Q.1 6.6 .1 . .0 .0 .0 .0 TRACE 6.1 2'.7 56.6

56 21.7 18.1 *19.6 4.8 TRACE .0 .0 .0 TRACE .0 7.6 15.9 89.357 !'..P 8.4 6.9 5.7 .0 .0 .0 .0 *0 TRACE 1.6 E.8 59.258 27.7 39.0 7.3 1.2 .0 .0 . .0 .0 .0 6.5

1E0

2 91.9

55 21.6 17.2 26.6 .7 TRACE .0 .0 .0 TRACE 7.3 13.2 66.660 12.7 32.2 15.6 .7 .0 .0 .0

61 *.0 .6 17.0

62 *1!.3 .C .0 '.7 *2.S 1.6 li.563 *17.7 s.2 2.6 .7 .6 .0 .3 .0 .0 .0 3.0 It.3 *0S.966 11.0 12.5 10.8 3.5 .0 .0 '.0

6. e.5 11.069 7.6 3.j 6.9 2.6 TRACE .0 . .0 .0 2.9 19.7 ltS 55.9

7 2-.0 15.6 6.0 . .0 .0 .0 .C .0 TRACE 1.9 2E.0 66.07T 1.:1 16.0 15.6 1,3 .0 .0 0 7.1 12.9 65.67 I 16.3 20.2 6.3 1.6 .0 .c .0 .0 .0 2.2 101 15.0 7I7

73 ?.9 II.j 11.0 1.1 .0 .0 .0 .0 .0 TRACE 3.S 21.8 51.374 16.0 2'.7 16.9 5.5 TRACE .c .0 .0 .0 TRACE 9.7 15.0 8.675 !.6 11.7 6.0 10.6 .0 . .o0 .0 .0 .0 6.3 ZE .4 56.6

7b 2-.5 2.6 16.6 ,1 TRACE ,a .0 .C .0 TRACE 9.0 21.6 ?7.0

77 11*! 5.6 10.2 .P TRACE .0 * .0 .0 TRACE 6.3 31.6 76.97e 47.9 29.2 1.1 1.5 TRACE .0 .0 .0 .0 TRACE 5.6 6.5 868

79 31.0 22.9 3.6 6.6 .0 .0 .0 .0 .0 TRACE TRACE Ii.R 78.9

AO 7.7 12.1 13.6 .5 .0 .0 .0 .0 .0 TRACE 3.3 2E.2 S.2

81 17.5 7.7 9.6 TRALE c0 .C .0 . .C TRACE .8 2C.9 62.5

8 2,9 12.7 7.6 12.1 .0 .0 ,0 ,0 ,0 V0 1.6 6.6 71S* 63 I .6 3.6 6.2 .9 aACE *r .0 .0 .0 TR6CE 5.6 17.7 61.6

.........................................................................................................................................

NOTE S (TASED ON LESS THAN FULL MONTHS

CONTINUED ON NEXT PAGE....

A(-3 '.

• .. $

*GLOBAL CLIMATOLOGY PRANC' MONTF.LY SkOWF ALL*USAFETAC APROM DAILY OBSERVATIONAS)

t.IR WtAt"ER SERVIEl/mC

STATION NUMPEP: 725287 STATICN NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: SI-ta, es-A?

TOTAL MUNTL SNOWFALL IN INC .ESv

YEA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV E~C MONTHS

84 S .7 ZA.7 10.2 .2 T

RACI .0 .0 .0 .0 .0 1.2 f.6 58.TI5 3q.3 15.6 3.6 2.7 .0 .0 .0 .0 .a .0 5.1 5!.l 119.86 16.2 16. 2. 25 . 0 .0 * .0 .0 .0 6.7 .1 89.887 2.1 A3 8.6: . .0 .0

S.D. 10.C22 8.977 5.785 3.153 .073 .CO6 .000 0 .000 o .675 5.788 9.8133 17.816TOTAL 061 989 ai86 4Z9 89? 960 988 9384 866 80 903 909 $61 10986

NO0TE *IBASED ON LESS TIPAN FULL "ONRIPS)

UL3bAL CLIMA'OLOf, nRAkC)- PNCENTAGE FPOCUENCV OF OCCUPRLNCE OF ShO)w DrPTP.jSAVI[AC FROM SUPPfAIY OF OAY DATPAIR WEAHEN SERVICEMAI

STAT10 kI*PLPz 15281 STAIIC. NAME: WJAGhRA FALLS TAP NY PFIO0O Of RICORD: 51-64, 6b-87............ °. . ..... .. ........................... ..OU ;; .N ; ; ........................................................

I I I I * 7 1131 25 I 31 I 69 I 61 I OVP I A 6 98 I 01 ALI 1OP-Ly AMOUNISI I I I I o 10 10 10 I To I TO I 1o I 10 I g WITH I

MCNTH I NONE TRAC,, I 1 I I 3 I 6 1 I 24 I 36 I 66 I b. I 120 I 120 I EAS, I 08 I

i iA I I I I I I I I I G I E AS

JAN I 1z.9 1,I I!I.2.z !10.61 9.41 i.11S.51 6.11 I 72.0 9"01I I I I I I I I I I I I IIII

FES 1%o? ls,1I l.b 11 . 3111.61 19.2111.41 6.31 .9: I 1 71.8 761

PA . 4.6 2S. 71C. 3 6.21 3.31 6.41 3.01 3.21 .21 1 1 29. ? 9611

AP 189.2 6.71 2.01 I.1 .1 .91 .21 1, 1 9301

"A 1 99.8 9I6.1 .1 *I96

JUN 110.0 I 968l

JtL 1.0.C 9391

AUG 1LO0.I 8681

SO P 1100. I 8101

T 99 .7 • I I903I

roV 31.61 8.71 6.7 11.i 1 .21 2.01 .51 1 9.91 9101I I i I I I I I I II I I Ir38 zI 1 61 $112.S1 9.7 1 1. I 2.11 6.31 1.01 II.b 1 96113.C I 3 . I I I I1

........................... '.".'..' ............................................................................................

-73.6

) -..,,f. L

/ • ,L

6 T

ULObAL CLIPATOLOG 5RANCF rXT.E EH VALUES Or SNOW ULPTHLSAIETAC fPU'v9 UAILY OHSET;TVATUI

AIR WEaTIER SERVrICEIPAC

7.7a10 PUVNLP: 7I$267 STATICN NAM[: NIAGARA FALLS IAP NT PERIOD OF RECORD: S-6. t8-B?

OAILY SNOd DEPTI, IN INCPLS

I -M-O.N-T -H-S- ALLVtAR JAN FEr PAR APR Ay JL JLL AL6 SEP OCT NOv EEC eOtN T14S

............................................................................................................................51 *0 0 0 a 0 12 1252 6 r * C 0 0 U 0 0 TRACE 1 6 653 3 3 1 0 a 0 0 a 7 3 75%9 5 IV 10 f 0 0 0 0 1 5 30

S-S S 1 3 0 0 0 0 0 0 0 If 10 1056 7 7 9 TRACE a 0 0 0 0 0 3 5 957 11 5 3 3 0 ) a 0 0 C 1 2 115s 10 27 2 TRACE a U 0 0 0 0 S 6 2159 9 6 R 1 o V 0 0 0 a 5 S 96 7 17 24 TRACE 0 3 061 so TRACE R62 13 R 2 2 0 0 0 *0 1 e63 616 3.9 5 ( I U a C 0 a 3 10 *166. 11 7 6 1 0 0 *3be

*1 269 7 . 2 2 0 0 0 0 0 0 10 6 10701 37 10 1 a a 0 0 0 0 0 1 9 1T71 4 11 6 RAcV 0 0 0 n 0 2 S II?2 7 1 q 0 U C 0 TRACE 5 6 7

73 3 6 8 TRACE 0 0 0 0 0 0 3 7 A?., 13 11 1 0 0 0 0 0 0 . 7 Iis 1 1 6 0 a 3 0 a 9 976 11 3 3 TRACE 0 1 0 a 0 TRACE I 13 1317 19 21 S 1 0 0 0 0 0 0 3 19 21

To 23 21 is TRACE TRACE 0 0 0 0 0 3 6 2379 9 27 3 6 a 0 0 0 0 a 0 7 2780 I 6 5 TRACE C 0 1 0 0 0 18 1RI 15 3 0 0 0 C T 0 TRACE 9 1582 3 13 , 6 0 0 0 0 a 0 1 6 13is s 6 TRACE 0 0 n 0 0 0 2 6

..........................................................................................N01 E iBASED ON LESS IVAN FULL NONTPS)

CONTINUED ON A.cXI PAGE....

4LLi *1

GLOBAL CLINATOLOY BRANCH E TREI[E VALUES Of SNOW DEPTHUSAF TIC 06" DAILY ObSE9WAJIOWSI

AIR WrAlf(R S(IVICEtWAC

STATICN NPBLP: 725287 STATION iN : NIAGARA FALLS lAP NY PERIOD OF RECORD: 51-s*, 66-67

DAILY SNOW DEPTH IN INCHES-P1-O..N-T -H-S- ALL

YEAR JAN FEB NAB APP "Ay JUN JUL AUG SEP OCT NOV LEC NONTHS",, ; . ... . ; ... .; .. ... ;;"' ,il .... o.."".".."' .... .. ........ ; .........85 I to it 2 1 0 0 0 16 1686 I 5 7 a 0 0 0 a a 1 8

.1A9 Co . . . 60 .0' TRA.C0 2.9 7.2

! I D .967 6.909 5.902 2.398 .119 *.00 . 000 .0bO Z,85? 3.&94 6o ... 0TOTAL ObS I 960 816 961 93(c 961 9q4 S39 .68 Poo 903 910 61 11057

NOTE I 1IASEO ON LESS THAN FULL MONTHS'

SI

ppPPPP AALA *SRER TITIIT YI

PP PP AL A RU NE11C

ppppppppp A: LA RRRRUR 1I cc

PPPPPPPP siAAAALLAA RUASERER TY cc

pp ALAAA L MR R IT CC

vP AI A A Re OR it cc cc

PP a A an am TT CCCCCCCC

pp AA A MR Re 71 CCCCCC

C It

K -!

SNFAC[ WIND SUMARIES

ENTNEE VALUS Of PEAR MliOS

DATA DElViE FISm SUNMAR OF DAY D1*.

VALUES PRESENTED BY INDIVIDUAL MONTH AND YEAR WITH ALL TEARS CONINED.

SP[EES PRESENTED IN NKNOTS.

DIRECTIONS PRESENTED IN 16 COMPASS POINTS FROM BEGINNING OF PERIOD OF RECORD THROUG1h JUNE 19*6.COMMENCING dULY 1968 DIRECTIONS PRESENTED IN TENS Of DEGREES.

AN ASTERISN '*" IN THE TBLES INDICATES THAT THE VALUE IS BASED ON AN INCOMPLETE MONTH Of TRElE OR MORMISSING OAYS.

MEANS ANO STANDARO OEVIAIIONS PRESENTED DO NOT INCLUDE INCOMPLETE ONTS. FOLE OR MORE MONTHS ARE NEEDES TOCOMPUTE THESE STATISTICS AND INCOMPLETE MONTHS ARE NOT INCLUDED.

TABLES ALSO INCLUDE THE OBSERVATION COUNTS.

BIVARIATE PERCENTAGE FREUENCT TABULATIONS OF SURFACE MINOS

OATA DERIVED FROM HOURLY DATA.

PRSENTED ARE THE PENCENIaSC FRA UENCV Or MIND DIRECTION TO 16 COMPASS POINTS, CALF $NO VARIABLEvERSUS WC SP EED I NOtS IN INCREMENTS or BEAUFORT CLASSIFICATIONS.

PERCENITAES ARE SHOWN BY BOTH DIRECTIONS AND SPEED, AND TN AODIION IH[ MEAN WINO SPEED IN IINFO EACH DIRECTION.

DATA PRESENTED &V THE STiDAND 3-HOUR TIME GROUPS By MONTH, MONTHLY AND ANNUALLY IALL YEARS COMINED$..

A SEPARATE ANNUAL TABLE PRESENTS TH0E SaME BIVARIATE DISTRIBUTIONS WITP IMPOSED CEILINGIVISIBILITYLIMITATIONS, WIKN VISIBILITIS EQUAL TO OR GREATER THAN 1/2 MILES, THE CEILINGS ARE ZOO To iO0 FEET ANOo wHENTHE CEILING IS EOIAL TO U GREATER THAN ZOO FEET, THE VISIBILITIES ARE 1/2 THROUGH 2 1/2 MILES.

A PERCENTAGE VALUE OF .C IN THESE TABLES INDICATES ONE OR MORE OCCURRENCES AMOUNTING TO LESS TPA U5S%.

L

LL

7-

GLACAL CLIMATOLOGY RR1kCH LIIRIRI VALUES CF SUwrAtL WINOs

USAFL1AC (FROM DAILY ObS"VATI.S)AlR WLAIMFR 1r36|1[/AL

STATlON NU 6LP: 72287 STATION NAME: *d|AIARA FALLS lAP NY PL0

IOO OF RLCORO: S8-6%

LbAiLY PEFm GUSTS IN ANOS

! .--- 1 oeS- ALLSVAr I .Iql El MARI APRI MA lI JUN11 JULI AUGI SLPI O(l1 NOVI LLCI MONIFS

s* I6 I i I I I I I I I I S40.131lm SDI59 1 SW1 1 SSd %21 WSW 601 SW 391 WS1 341 W 01 *1* 661 SW 421 WSW 261 w 361 11 321 bsW*s361 WSW 600 I W 411 Sw 371 s 361 .sW 321 Sl 231 us. 31 6sw 321 I 1 I I I61 I I I I I I I I I sSW*33I SS 311 SsI A I 4S

62 $ si *4 I So *6qcI l 94.1 bSi 621 Sm32 3ZI J61 I 1 IS *I ?WE uJt S 19I6 I $St. 1 S6 lid *511 ISSdASlI b6* bli $So 1.9 w *291 W 0321 W 3SI 5¥ SRI S.SS36I 5W osli S 61D so *S666 I WsoSS I IS de6 1 WeS6i 1* 331 Sw 561 * 0621 WNW *%a.I I I I I I

S.U. I I I I 7.6761 12.11121 I I I I I I 6.;6Sl

TO AL OS 1 1S11 lnl loci loci l9 I 1621 1221 621 601 6 1 1Z11 1 21 1367

NCTIf * IBASED Oh LESS Tf-AN FULL MOdI $lS 4PASrO ON LESS TWA% FULL MONMS AldO *100 KNOT)

L6l "

. A

bLO:34L CLIPATOL06Y 59ANCF PE(CLkr$G( FeE(CCr or OCCUPRcNa or SURFACt WIND DIRECTION VERSUS WIND SJWEE.JSAFEI*C tROw I0 URLY OBSERVATIONSAIR ..!AIHFP SIRVI'EI/AC

.161109 NUPKI$t 7;i2t? STAIICAI NAME. !IAGARD FALLS TAP Nll PEO100 OF RECORD: ?P-A7MONTlP: JAN I'OUR3.ILSII: 0000-0200

I h.KRO SPEED IN KNOTSDIFECTION 1 1-1 4.6 7-10 11-16 17-22 122 2-33 34-4t, 41-7 48-55 GE 56 YLIAL "EAN

.................................................................................................................

.61.9 6.9

I r .3 .1 .3 2.s 9.2

1 1 .2 .9 G~ .1 . 3.8 8.9

L . 3.? 2.!5 .2 10.9 A. 2

$1 1 .1 . .3 12 2.3 8.8

!st .2 .6 .2 1. 5."

2.7 3.0 2. 27.2 G. 3

S1. 9 . .p 1.9 1. 1 . . 10. 3

SR . 2.C 2. . 1.0 .2 .2 .s 12.0

Sw6 .9 3.2 6.1 7 .. 0 1., .3 29.9 23.8

.9 1.6 b.? 20.94 2.9 .41 .2 22.4 12.s

1 1 .1 1.6 1.9 1 S.2 10.1

.3 I1r 1.9 2., .7 .? 9.4

f~.1.6 1.8 1.? 5.2 9.c

CAL"6 10 11/1/

.4

-: 4-

GLO:AL tLIPAVOLOGV PRANCH PERCENTAGE FRLUENCY OF OCCUPRENCL OF SURFACE WIND DIRECTION V(RSUS WIND StEEUUSAFETAC FRO- OLRLY OBSERVATIONS

AIR .ATHER4 SrRVICEIqAC

SIAION NUPER. 725287 STAIICN NAME: l~PbAPA FALLS IAP PY PERIOD OF PECORO: 1P-8MONTH: JAN HOUR

51LST): 33l-0.OO

I UWIND !PEED IN KNOTS

IUJI'LCTION 1 _- 4-(, T-I 11-16 17-21 22-27 ?P-33 34-4U 41-47 o98-55 GE 56 T.,IAL MEAN

* IuiRFjS1 I W IND

' .3 i . .1 1 .o 3. 3 8 .2

,N( .* .9 . I.I e.

P1 IE. .3 .2 .1 1,2 9.7

r ,E .2 1.5 1. .5 .4 .9.3 9.C

c i.-" 2.9 2.9 2.4 .2 9.6 7.9

E 9 .. .9 . 1.9 7.8

I,., 1 . 2 . 3 , ? 2 . 2 6 . 1

,Sr-

. ,. •.1 1.2 7.5

2. 2.7 2.4 .1 7.3 9.C

SSW 1.2 1.3 2.c .2 .7 5.2 11.2

W, 1.7 2.3 3.2 .9 ,? 8.3 11,2

5 .2 1.2 2.5 7.5;

2.7 1, *1 5. 13.7

.2 . 1. S0. 7(. 2. p 7 .1 10.2 12.2

I • . 1. 2 2.0 2. 2 .5 6.3 IO.

'' .t 2.6 2.7 .2 ,2 6.7 10.2

t,1 , 0 1 1 . C .2 3.3 10.2

"* yAkNIAHIr 9

I A

TOTALS I !.I 1 ., .Z. 33. .1 2. z . 100.0 10.2

............................................................................................................................

*TOTAL. NUi9lEQ OF 0'S'42A31ONS: qir

•LO,AL CLINATOLOGY PRAJCH PERCNTI&GE FRECUENCY or OCCURREECL OF SURFACE WIND DIRECTION VERSUS WIND SPEEOUSAFETAC FRO- OLRLY OBSERVATIONSAIR I.ATHER SERVICE/MAC

STATION NUMITR: ?25267 STATION NAME: NIAGARA FALLS TAP NV PE91O0 OF RECOPO: 78-87MONTH: JAN HOURSILSTI: 0600-0600 t

RIND SPEE IN KNOTSUIRECTIDOI 1-3 4-6 7-10 11-16 17-21 22-27 28-33 34-4C 41-17 68-5s GE 56 TCTAL FEAN6OF6QL[S3 I 6 WIND

N I *2 , 1. ..2 2.2 7.0

NNE I .9 .2 . . ,1 1.6 8.

Ih NE %° IC o .3 3,? 8.7

S6. , .6S 1. 3 .1 9.5 7,5

F sr .1 1.1 1.1 .5 2.8 7. 3

Sf .2 .9 e8 .1 1.8 6.C

S I *S 1. 1.3 .1 2.7 6.5

t* 2.f 2.7 1.9 .2 .2 8.0 9.0

SS6 I .2 3.5 2.3 1.2 .5 5.7 9.1

Sa I 1.6 0 . ., I.s .8 8.5 12.8

ISA .1 f 2.7 9.% 2.0 .q .2 lb.3 14.C

1 . . 2.7 5. 6.6 I.9 1. 17.5 11.6

9Wk 1.? 1.6 3.9 .6 .2 5.1 11.3

M i I .8 1.6 2.7 3.0 6.0 12.1

A, #6 .4* 1.2 1. 9 .10 a. 13.6

............................................................................................................................

10• TOTAL | ?, '3o! 28.8 32.2 8.6 3.3 °. 120.0 30.6

TOTAL hUMfr,0 CF O!Sf8VA1IONS: 93b

xLiit

'iii ULC:,AL CLItPIOLOGI ('RATICH rLQCCNTA6r iNC UCNCY Or OLCC:qRcNcr OF SURFACE WIND DIRECTIONS VERSUS WIND ST EEO

jSAt CFRO- FOtWtY OSRAINAIR4 WEATHER SERV1C'E/9'dC

STATInN NUMSEL: 725207 STAIICN NAME: NIAGARA FALLS 18F NlY PERIOD OF RECORD: 7--87

MONIR: JAN HoUgSiLSuI: 09L)0-1100

IiINO !PEEO TN KNOTSUZPECTIu'4 I 23 N-6 7-10) 11-16 17-21 22-,? 2 1- 3 3 IN-NO 4I-NI 48-55 bE, 56 ICiAC MEAN

S I tS

..............................................................................................................................................*N I.8 1. 4 2. J 9.6

4 I NE I . .1 .6 .1 .2 1.3 9.j

*N[ I .p .0 .1 .4 2.3 9.8

E I.E I . 1.r 1.5 . .2 4.4 7.8

L .6 .~ 2 .9 2.4 9.6 1.7

ESE 1.1* 1.0 .4 3.1 71.1I

I

SE I 1 .9 .6 13.45 6.

* 5$"!TA I .'* .O~ .3OBE3.4TO5..

SS I .T1 .4 j.2 10.31

SSW I .3 .5 1.9 1. 4 .2 N.4 9.7

Ib iC 2.4 4 .1 .9 .6 .3 9.2 i3.i1

45 . p 2.r P. i 3.1 1.9 1.

W 2 1.2 4b.6 q.6 1.9 .0 19.2 32.6

UNhv.a . 1.7 2.2 .1 .7 to.'

N I a7 1. 1.4 .6 6.1 12.2

fi. I.N 1.2 IA. .9 13 4.1 j2.S

................................... ..........................................................................................................

VTTn A UE{ k22@ I ~l~ ASlr LrlGg IAL ~ z Z/DO LOD 09

C A LM I //jjji/JjI~~j/jj /I/ I I// If///// I//////jl/// /f 1 /1/////, /11.1 2.6 /41/il

TOTALS IJ7N

2p..e 37.t A.9 !.g .3 100.0 11.c

............................ ...............................................................................................

TOJAL .UNEQ .F 0 1C I .I .1N.S 930

Eli[* Iii5 0 02q~q .8L

LLO:AL CLIFAIOLOGY PR CH PERCENTAGE FRE :)UENCY OF OCCURR!NCE OF SURFACE kIND UTRECIION VERSUS WINO St EEOUSAFEYAC FRO- 1OIILY OBSERVATIONSAIR i(AIHTN SERVICE/MAC

SIA11ON NUMHER: 72S287 STAIION NAME: NIAUARA FALLS IAP NY PEOIOD OF RECORD: 78-87MONTH: JA

N HOURSILSTI: 1200-1400

... ......................................................................................................................................

IwIN SPEED IN KNOTSDIPLCIutj I 1-3 4-6 7-10 11-lb 17-21 22-27 2P-33 34-40 41-47 4-55 GE 56 TcTAL MEAN

IDUGOEESI I W WIND

....................................................................................................................................... ;......

N 3 a2.7 8.

te N .1 .1 .N . .2 1.2 11.6

NE.Z . .P .4 .3 2.3 10.2

F I , 2 .2 1.7 .9 .4 5.3 8.5

4 1 ..o N7 1.7 R.4 V.7

fSF .1 1.1 1.2 7.5

sE . .6 1.0 6.8

sSr .2 I. .5 1.7 6.1

S 1 1.! 2.C 1.4 .S . 5.6 10.3

S.2 1.e P . 3.5 10.7

SW ,. 2.4 4.2 1. .3 .K 9.9 13.8

.Sw .1 . 2 2. 7. C 3.1 1.8 .3 .1 16.5 1N.9

, .4 4.1 l0.S 2.8 2.C .2 20.8 lN.c

V. t I .4 2.3 4..7 .N .2 7.5 12.2

hi. I .l i.p I.1 7.5 12.1

N.: .I *N 1 l.1f .5 3.5 11.6

.........................................................................................................................................VA6IAFLE I

I fTALS I 1.4 11.6 29.1 3 .1 11.7 4.6 1. .1 100.0 11.5

10 1 A L hiIMN OF OSERVA 1rI : 1S qo

-J

(.LCAL CLIPAIOLOGY t4RAwjCN I'RCEI.7AGE FRELUENCY OF OCCURRENCE OF SURFACE WINDo DIRECTION FRosus WIND SUEEDUS AFElAC FPAO" V01419 OPSERVAIIONSAIR WEAIHEP SERVICE/MAC

STATION NUM-LP: 7151,87 STA) ION NAME: NIAGARA FALLS lAP MY PEQ170 OF RECORD: 74-87MONTH: JAN MOUMSfLSTI: 1S00-1700

S. . ... .. . . . . . ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I WINE) SPEEn IN XNOyS0 1PE C IIiN m 1-! 4-6 7-1(7 11-16 17-21 22-;, 7 ?'P-3! 34-4c 4- 47 48-S5 60 56 TOTAL PEAN

I I

'U' b(3L CLXr- TOOG ERNC 5[R~TG F1[I C tF WINDtC F UFC ID01[TO FSU I S'

. F L.2 1. C 1.3 .O3.2 8.5

t.N .4 a. .4 1.5 9.1

NT . .4 .9 .4 .2 2.0 9.5

H JNE O. 2.6 .r .4 T 5.8 9.

E .9 3.4 2. .4 1 6.8 9.7

• . 1.2 .2 2.0 1 .3

sE I .. ., . .5 .8

Sr F .1 1.1 .6 1 1.4 6.7

S 1.' 1.q .9 ,1 3.9 9.T

5-SS. .6 1.2 1.4 .8 4.0 17,3

S .s 3.3 5.2 . ..5 .2 .1 10.9 13.1

Ws, .2 1. I 2.5 A. 7 4.0 1.? .4 18.1 4.6

1* .i 1.7 5.3 7.5 2.9 1.2 .3 19.0 13.4

NW 1 .7 2.4 3.3 .9 .6 7.6 13.C

hN 1.2 2.9 2.1 .4 7. IO.5

1.,. 11 1 I. r .2 3.9 8.9

°.............................................................................................................

CALV i I I f / I I t i I I I ////I/ 5.5 I/U/i

IOTALS 1 .' 14 .2 31.. 36.1 11 .0 !.7 1. .1 100.0 11.6

... .......................................................................................................................

TOTAL NuM[LP OF 0;iSERVATIO*S: 9j31

. . . . . . . .. . . . . . . . .... ... . . -. - .7 L

K __

G LOJ'AL CLIMATOLOGT RANCH PERCEUTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEED

USAFEIAC FRO' POL'LV OBSERVATIONS6IR .EAVHrp SERVICF/AC

STAICN NUMER: 7.5287 STATION NAME: NIAGARA FALLS lAP NY PERIOD OF PECORO: 78-87

MONTH: J&N HOURSILSTI: 1800-20CO

.. . .. . . . . . . . .......... ....... .. ... . .......... ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IIND SPEED IN KNOTS

! J|ECTIIU 1- 8-6 7-10 11-it 17-21 22-27 28-33 30-40 81-47 48-55 GE 56 ICIAL PEAN

IUEbGREESI II WIND

tNE 1. .1 .3 1.9 6.3

.E . *9 .1 * 1.5 7.0

I.r . 2 -.2 1.2 1. .3 5.2 8.5

E . 2..6 8.3 2.8 9.6 8.7

E SE 1 .6 .9 .1 2.6 6.3

SF .. 1 3 .5 5.8

'sr .1 .2 .3 .6 6.0

S 5 1.7 2.7 .6 .8 5.5 8.7

S .1 .I 1.1 1.1 .3 .2 .1 3.8 11.9

s5u .i ..1 2,' 2, ,6 ,7 .3 8.2 12.0

Su.2 1.r 2.9 7.1 8.5 1.1 . 17.3 14.6

I . 2.6 5.8 6.P 2.9 1.1 .2 21.5 12.S

N. 1.8 1 . 3. .9 .7 6.9 11.6

hW .1 .2 1.1 2. .2 .1 8.9 11.7

"h.9 , .4 .4 1.4 .2 3.5 i .8

, VARIAPLE I

1(IILS I 2.7 19-7 27.! 3!.1 30.8 3.r 1.2 100.0 1O.9

TOML NUMBLR OF OSERVAIIONS: 930

6..

A -L .-

113j.AL CLIMATOLOGY QPAi4Clt PLIPLENTAGE FE'U..LNCY OF OCCU4RENCL OF SURFACE WID DIRECTION VERSUS WINI SIf.O

uSArETAC FQOM OL'8LV OBSFRVAYIONS

AIR LATH[1 SERVICL/MAC

5TATIC% NEt/UL: 7,5287 STATIN NAML: NJIAGARA FALLS TOP NY PRE100 Of RICOPD: 74-87MONTH: JA

N HOURSILSII: ZIJn-ZiO

I WIND SF7E IN KNOTSO'rClTIo N I-! A-6 7-10 11-16 17-21 22-?7 2P-33 3A-AC Al-A7 A8-55 GE 56 TOOL MEAN

I DE GLrS 1 W IND..~~............................................................................................................., = . .,; ;.......,........I .7 11 2.2 1 .7 5.2

9.c

INN .1- .3 1.0 5.6

".1 .2" .2 .; .4 1.7 11.6

r -. ., .4 .NE 3.7 7.2

E" .4 3.C 2.e 2.D

.1 .1 9.2 8.8

, SE1 1.2 1.A 2.7 6.0

s.1 1. . 1.4 5.6

S .- .6 l.A 5.6

S I ., 2.2 2.8 1. .1 6.2 e.1

I .2 1.3 1.0 l,3 1. 8.2 10.2

Sw .I .A 2.3 P.4 .9 ." .1 .2 6.6 13.2

.S.1 1.1 3.1 7.1 2.9 1. .A 16.2 18.5

3 *. 2.8 5.5 4,L 3.1 1. .2 22.4 12.1

U3jh: I 6 1.9 2. 7 S~ .9 10.9

NW I .7 2.8 P. 2 , S.1 I0.9

CL J/ ./ 1./ 1.3 1 .1 1.1

VAIAI t

TOTALS 9 5., 17.7 29.1 33.-5 0.2 3. .9 , 100.0 10.6

...............................................................................................................................................

30AL NUIBEP Of OfSERVA ItONS: 930

ULOFAL CLIVATOLOGY BRANCH PLRCLhTAGE FPL.UENCY OF CCCUPRENCE OF SURFACE WIND CIRECTION VERSUS WIND STEED

USAFElAC FRO FOLRLY OBSERVATIONSAIR WfAfHRP SERVICE/MAC

STATION NIMTE: 725267 1AIION NAME& NIAGARA FALLS IAP NV3 PERIOD OF RECOP: 78-87

MONTH: JAN HOURSILSTI: ALL

I 1.100 SPEEO IN KNOTSElr3LCIIC I 1-3 .4-b 7-10 11-16 17-21 27-27 7P-33 34-40 4-47 48-55 GE 56 TLIAL MEANiUCU

1LrS

5 I I WIND

K Z 2 . 1.4 .03.8 8.4

NNE .1 .6 .4 ,. .1 .0 1.4 8.1

Nf ,1 .0 .0 . 3 ,0 1.7 9.8

[NE 3 1.6 1.4 .q .3 .1 4.5 8.

L . 2,8 3. 2.2 1 .' 9.1 8.3

I SE .' .o 1.1 .2 2.3 7.C

SE . .. .5 .. 1.3 6.c

SSE I . .P .6 7!. 1.5 6.2

S 0. j.9 2.5 1.F .3 .1 6.5 9.1

SSW .1 ,R 1.6 1.4 .3 .7 .0 4.3 10.5

S. .1 1,1 2. 4 2.4 1.0 .4 .2 .1 8.7 12.6

1Sw .2 .9 2.7 7.9 3.1 1.3 .3 .P 16.3 14.3

,I 1.7 5.3 4.9 2.6 1.n .2 2ZC.O 12.7

1..1 .q I.p 2.7 .6 .2 6.1 11.4

. .1 .7 2.0 2. r . ,. 6.0 11.2

,N6 . .7 1.4 1.4 .3 ,0 3.0 10.5

...................................................................................................................................VA kIAb L

r

CAL-1 2.9 III

TOIALS 2.5 17.! 24.2 34.1 9.3 3.3 .b .1 100.0 10.8

T1AL NURPLE CF O'SURVAIIONS: 7440

IL

___ __"

P________________________________

.LOLAL CLI"ATOLOGY PRANCH PL$ZCEFTACL FI EhXECY OF OCCURRE.CL OF SURFACE WIND OIRECTION VERSUS WIND SFEELUUSAFETAC FRO- VOl'RLv OFSRVAIIONSAIR wrAtINE SRVICEIMAC

SIAI1CN NUFIEP: 7??67 SIAIIOK NAME: NIAGARA FALLS IJ NTy PLPIOD OF PLCORO: 7-87MONTH: PEF HOURSILSTI: 0000-OiOO

I wIND SPEED IN KNOTS

- CIPECTION I - '-6 7-10 11-16 17-11 22-27 2F-33 3F-NO 41-t7 148-55 GE 56 TGTAL MEAN

IODEI [ESI I W MIND

I .1 1.' 2.' 2.5 .2 6.6 ID.I

.fr, .7 1.' .1 2.2 7.1

%F ,. .7 .7 .7 ,2 2.6 9.3

fNE . 1. .6 1,. . 3.8 9.2

L 1.1 4.7 2.8 2.5 .2 1.3 7.7

f St. 7 1.9 .6 .1 3.3 S.C

A[ .1 .8 .. .1I .8 6.N

SSE .7 .2 ,I 1.1 6.3

S ,. 3.7 2.2 1.4 .1 1 A. 8.2

SS *1 2.A 3.r ," ,1 6.5 7.3

S I , 1. '4.6 3.1 . .1 10.6 10.A

ASW I .1 N.4 7. 1.9 18.3 1ll9

w . .( 5.6 4.^ . .1 13.0 9.7

WNW .N .7 1.1 .1 2.? 6.9

N. .4 I.4. I- . .8 9.5

t, NW 1 * l.t .2 ,.6 .

VfRIABLF *CAL 8.6 1/./

TOIALS I .*7 27. 31.7 26.' 5.2 1 .1 .O.0 8.9

..............................................................................................................................................

IOTL NUMCER OF OISERVATIONS: 8N6

ji

CLOLAL HLIMATLUGT BRANCH PE.CE TA E FF..UECY OF O,.CURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEOus A FITAC FROM "OLLY OBSERVATIONSAI. dEATHER SERVICE/MAC

STA10f. NUPILR: 152a7 STATICN NAME: PJIACAPf FALLS TAP NY PEPIOD OF RECOPO: 74-67-ONTH: FEB HOURSfLST1: CO0-O0OG

I- INU SPEED TN KNOTSL, IPECTION 1 1-3 4-6 7-1U 11-16 17-21 ,2-2 1 " -33 34-0 1-47 48-SS GE 56 TOTAL MEAN40t bqEFS1 I W IND

.............................................. ...... ...... ......................................................................" I *9 1.t 2.1 1.5 .1 5.9 8.6-- I

-NF .2 .F .9 .1 2.1 6.6

NE .4 *K .9 .m .1 2.7 9. 2

"NE I . i. 1.9 1.3 .2 5.3 . 3

E .3 3. 2 2.6 2. 1 .2 9.6 a.R

f SE r .6 2.6 5.6

b I .7 1.r

.1 2.9 9.7

ssr . ° . .1 .21.4 9.3

S .6 3.4 1.e .7 .4 6.9 7.2

S*w . 2.2 2.7 1.5 .1 6.5 8.0

S14 T 1. p 4.F 3.9 1.1 . 11.7 10.1

.:SI r6 1.8 5.1 5., .; .1 .2 13.7 i0.5

. ,2 2.2 9.7 S.1 1.3 .1 13.7 10.8

NJ4 1.4 .P .6 2.8 7.9

N4 1 .4 1.? .7 1.7 .1 9.0 9.5

t.. .. . .. .. . 1.. , 1.1 ... 3 8.5 ."

VtRTAPLr

I: ! t

CA L4 /I / /// IjI //111///I/j /liI /////JI/ I/JIj/I/1I/UIIt/j//I/ 9.9 ill . 11

TOTALS I 6.9 27.C L1.1 2S.; 4.7 .2 .4 100.0 8.6

TOTAL NUMV71. OF ORSERVAIONS: P76

- - L ... . *--*-.--.-...,4

GLO -A CLIPAIOLUGY VRA'4CH PERCENTAGE FREQUE.NCY OF OCCL'RRE(NE OF SIRFACE WINU DIRECTION VERSUS W-140 SfED

LSAFI AC FPO- FOtQLY OBSEPVATIONS

AIR E(ATHER SERVICE/MAC

STATION NUMRLR: 75287 STAITON NAME: NIAGARA FALLS IAF NY PEolOD OF PECOPO: 7P-87MONTH: FEB HOUq sLSTI: 06JO-080)

I - WIND SPEED IN KNOTSv ILC 11N f 1-3 4-6 1-10 11-16 17-21 2?-21 2t-3S 34-4O 41-47 %e-55 GE 56 T(IAL MEAN

IOr GRE I I % WINO

1% ,f .9 1.2 1.* 3.8 9.3

SNr . .6 .I 1.4 7. 3

NE .2 1,2 1 .8 7 .2 3.8 8.6

LNC .5 1.9 .7 1.2 .4 4.6 8.?

C .7 2.q 3.4 2. 7 .5 11.2 FS

LE [.1 1.7 .7 2.5 5.7

f .T. 7 .6 1.4 5.6

s.5 . .7. . 2.2 6.1

S I .4 4..r 1 .1 . '6.6 7. 1

!sw .; ?. 3.8 1 . .4 9.0 8 .

sw . 2.1 2.9 ,.S .9 11.0 10.

655 I .' 3.2 4.~ P 1 1 9.3 10.8

" I 17 5.0 4. 1 .1 1 12.4 10.6

1.GW .- 1.9 1.4 1.5 6.'r 7.9

N I . 1 1.7 .5 4*3 10,9

N.N4 .! .9 1.! 1. 7 .1 4.1 9.7

* V8TT 1AR]L I

* CALM /// // //iUIUU// /////i / I/ 6.3 1/I//

It TALS I 5.7 2c.7 Z9.4 27.1 4.4 ,1 1 ldC,0 8.5

TOTAL NUIPIPEO OF OrSERVATIONS: '4 ,

/L

.. t-

I -

LUJAL CLIPATOLO&V fl2AA CH PEPCEI.TAGE FI (.U.NCV Of OLCUQ9(NC" OF SURFICE WINO DIkCTION VFR5US WING SF EEOs jrr Ac Roo -'OLRLY OISFRVATION%

AIR EfAlHrp SLRVIC/4C/.

sTAIICN NUPnLP: 7I52l $TAlION NAML: NI*G(RP FALLS TAP NY PEolOli OF RECORD: 70-07MOiNTH: rFE HOURs(LSTI: 0900O-10............................................................... . ----........................................................

I INO SPEU IN KN015UI31LCT1IN | 2-3 4-b 7-IC' 11-16 11-21 22-7? 2P-3L 36-60 41-47 48-55 AC 56 T(TAL L4AN

4 RErFS) I 9 WIND

f. NE .7 8 I.q 9.6

%E: . 2.C .6 2 3.13 9.5

rj. .6 "l 1.6 1. 3 .2 .1 6.8 9.2

I . 2.2 S.2 3.2 . 11.71 9.6

rE I. .9 2.5 6.9

SL .9 6 1 .9 7.7

'3 .6 .6 .4 2.3 7.6

5 .7 2.4 1. 2. 6.3 7.5

sS. 1. 2 3.6 2.. .2 7.1 9.6

..2 7 .3 5.4 1.7 .1 13.5 11.,

SS., ,f 2.6 6. ' 9 11.6 12.6

w 1l 1. 6.3 5. 2 1 .2 12.1 11 .C

Vw 5%w .1 q.SI 2. l' 2.0 1.2 ,.651 ,

,444 • I 1.2 2.13 2. 1 .2 5.6 20.1

N ,N. 1.2 . z. 1 .4 6.5 0.5s

.............................................................................................................................................VAPA4L I I

1 |

f lLS | 2.7 . s.p 36. 6.6 6 100.0 9.7

............................................ ....................................................................................................

TOTAL NupfiEr

of OISERVAIIONS: 041 6.

(

I6

6LOkAL CLIPAlOL06T RNA CH PLPC[tA6C FRLUlC OF OCCURRENCE OF SURQFCE WIND DIRECTION V(RSUS WND S#EEOUSSETCIA FRO- 11OLWLY OBSERVATIONSAIR WfATHEP S[RV]CE/[AC

STATION NUIPILP: 7-5787 SYA2ICN NAME: NIAGARA FALLS ZAP f'V PERIOD OF RECOPD: '-Rp7

MONTH: FIB NOURsILSII: 1200-1,00

I IhO9 SP[EO IN KNOTS

01(C1IUN 1 l- 4-6 7-10 11-16 17-2j 27-27 2P-33 34-40 92-17 9-5s GE Sb TLTAL MEAN

40FES 2 WIND

N !I 1.l2.9 1.2 .1 O

, , 11. . ..5 1.1 . ..2 ,1 3.0 10.6

ifs ,' 1.2 2.9 2. 7.2 9.1

I .I I.. 3.9 1.7 p0 7.8 9.7

It.2 .4 .. .9 7.9

S 1.1 I.q .1 t, 9-2

I .' .9 . .9 9.9

S I . 1.9 1.9. , A 929

I .2 .7 3.? r.: 2.9 .8 19.0 12.

6sw .4 . 3.2 7.: 1.1 .4 .2 13.7 13.1

t z 1 . 1.? 4.- 2.17 8.9 13.

v P16, .1 1-1 9.9 4. ~ .6 10.3 10.7

7.6 .1 1 . 0 3.- .' .2 9.6 9.6

S.1 1.. 1.2 .' .1 .1 3.7 9.2

VAWIARLEC ALe lm/l /I/ /I Z. 7 lItISld

S101*6L$ 2.6 1.1 32.% 3!.7 7. 1.9 . 100.0 10.6

101L kUml[" OF O"SrRVA1I0S: 896

.._ L.

, - . . . . .. .

-e --

bLOtIAL CLIMATOLOGY BRANCH PERCENTAGE FRLEUENCY OF OCCU9RVNE UF SURFACE WiND DIRECTION VERSUS WIND SILEDUSAFETAC FRO" FOIRL OPSERVATIONSAIR 4EATHEP SERVIC!/MJAC

STATION NUMPLP: 7:zs? 5 TCION NAME: NIAGARA FALLS IAr NY PE(?IOD OF RECORD: 7'-87 "MONTH: FEL NOURsILSTI: 150-1700

...........................................................................................................................................I wlNn SPEETT IN KNOTS

DIECTI0 I 1-3 N-b 7-1D 11-26 17-21 22-27 2P-33 N-0 NI-N? NR-S5 GE 56 T(7I PAAL ME-IUE REESD I MIND

N%. 1.' 2.6 1.2 SZ 8.3

mC 1. 7 .7 .7 2.f 8'

Nt .. 1.3 1. .4 .1 8.0 ,O.p

1., 3.7 2.1 .2 .1 N.2 9.8

ES K1a . ~ . .9 1.8

sE I .2 .7 .1 .C

* E . . 2. .9 8.4N

S1.7 1.7 .f .I .4 6.0 9.6

'56 ,q 2.r . 1,8 6.6

S4 I.9 8.1 P. 2.0 .1 15.6 12,5

S .q 3.2 E.& 3.n .5 .2 18.3 13.9

d ,. ,6 2.7 5.6 I.s .2 10.6 12.0

11NN I 1 *. .1 N. C .7 10.0 11.0

. .2 3.9 1. 1 .6 7.7 9.c

No I .2 1.7 1. 1.2 1 1 8.8 8..

L A L'

TOTALS I . 1.e 35. 3., . I1. 100.0 1o.6

...........................................................................................................................................

TOlL hUMEQ 07 OtSERYATIOtIS: 046 [.

i • I

GLJeAL CLI"AIOLObV 816AJEH PLPCErTAG[ FVLZUEtJNCY OF OCCU REN.CE OF SURFACE WIND OIRECTION VERSUS WINO SEEDuSAF IAC FROM FO.RLV OPSERVATIONSAIR 4EAlHEP SERVICE:I/MC

1ST1ICN hP16,EC.: 727 STAIICK NAMLI NIAGARA FALLS lAr tnT PE[IOD OF RECORD: 78-87MONTH: FEB HOURS(LsTP: 180-C2000

...........................................................................................................................................I WIND 5PVED TN KNOTS

DIF'ECl1(' I !-I 4-c 7-1c 11-16 17-21 22-27 2P-33 34-4O 1-47 48-55 GE r;6 T.TAL MEAN*- 0tr TrSl I JI WINO

h .' 1.4 1.4 t .6 4.S 9.2

*~ NF . • 7 .6 .. *1 7.1 7.2

NE 1. S a .I .1 ? 7.4

FNE . 2. 1 2.1 2.4 .4 7.8 8.7

c .q 1.9 2.7 2.4 .2 .a 8.3 9.1

F* I , .7 .7 .1 1.7 7.4

SE *p *5 .1 1.2 7.7

* b

5r .6 ,. .1 .2 1.2 9.4

S 3. 1 2.0 .7 *4 6.6 7.5

I".5 1.! 1.9 .7 1 4.5 7.9

Sw I . 1. 4 5.9 5.% .8 .2 14. 3 10.9

W A' .1 1.2 3.5 6. 1.7 .6 13.9 12.7

I .4 2.1 3. 4.1 1.5 .1 11.6 10.9

N4W 1 . 1.5 2.2 2. .4 6.5 4.9

hu I I 11 .9 . .6 5.1LAW~~~~~1 3 1 12 2 ~ . . .

...........................................................................................................................................

TOTALS I .. 71.7 3C.5 31. 7.7 1.4 100.0 4.7

...........................................................................................................................................

TOTAL fUrP6l OF O"SERVAIIONS: P46

L ___ '

Ag

" t5LJ.AL CL1PtAOLO.V RRH CIH PERCENIAGE FPCU[hCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WINO SFEEDuSAFETAC FROM lOt'RIT OPSEPVAI1ON%AIR 61.ATHER SERVICCEiP4AC

STATION NUMIJTF: 7-52,A7 SAT ION NAME: NIAbARA FALLS TAP NI PERIOD OF RECORD: A-87MONTH: FEB HOURSILSTI: 210C-2300

WIND SPEE. IN ANOTSbit'EC3ION I - 8-6 7-10 11-16 17-21 i2-27 20- 3 3 31-0 4I-47 48-55 GE 56 ItiAL MEANOEIDEREESI WIND

N I . l.q 2.0 1.I .6 6.0 10.2

NNr ,1 .2 ,7 1.4 9.8

h[ E1 .2 , 6 1 1 1 . ? 1 0 1

r'T r 1 .4t 4 ,5.3 9.C !

L 7 . I 3.R 2.6 ,4 ln4 P.5

I SE .7 Z.c 1.1 .8 S.4

SE. .2 .F 1.2 7.3

Sir . 1 .2.1 6.9

s .6 - 01 7 1 1 - 7.9 7.4

I . 2. 2.0 I . .2 6.3 9.3

S , . I. 4.4 3. 1.1 1V.$ 10.6

u ,1 1.2 4.3 ,. 1.5 .? 13.7 12.3

I .2 2.S S.C s.' .7 11.2 1 .41

kNW • . 2.1 * .2 3.9 9.s

tl, , 2.8 2.5 5.3 1.5

..Nd .2 1.0 1.8 1.- . .1 5.8 9.7

.............................................................................................................................................

6."

TOTALS I 8*'4 28.2 30.5 29.' 5.3 .7 .8 100.0 9.3

IO1AL NUMELO'. OF D' SVRIVAIIONS: Pe.6

IA

r.

6LLOJ AL CLIATOLOf 8RA,CH PLRCEITYGE FRE AUNCY or OCCijRRENC OF SURFACE WINU DIRECTION VFRSUS 6lO SF EEOUSDrLTAC. FRO' VOLNLY OPSFRVATIONSAIR WrATHER S[RVICIMAC

4TAVI, TN kUMeLf?: 7:5261 STATICN NAME: NIAGARA rALLS tAr iN PEDI00 OF RCORD: 79-87

M13NTH: FE5 HOURSILST): ALL.. .. .. .. .. .. .. ... .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. ....... ......................................... ,I wI~ln SPEED TN KNOIS0it

[ I I CTI' I O - 4-6 7-10 11-16 17-21 22-27 2?-33 3 4-40 41-0 7 4d-55 GE S6 1TAL "ANt LrGrL F SI I W 4IN0

.% . I.' .1 1.5 .3 5.3 9.3

NT - .6 .7 . 2.1 a. I

hf .1 .p .. 5 . ' 3.3 9.5

f.r I .S 1.'. I.P I.3 .3 .1 5.7 9.C

E .6 :.7 3.! 2.9 .6 .j 9.6 ".9

SE I3 12 .7 .1 2.1 6.0

" s ,I 1 6.3

* '--F I .I .6 .9 .3 .1 .0 1.9 1.2

.4 3. 1.6 1.1 .2 .1 G, 6.5 7.8

* S W 1 . 2.5 1, .1 6.0 8.6

S I . 1.1 4,3 5.2 1.2 .' .0 IZ-0 .

65* I .. 1.r 3.7 b.- 1.5 ,1 ,! 1Y.1 12.-Y

I.5 1 3.6 .71 1.2 13 12.7 j1.)

I6 . ! 1.' 2. r, .3 S.7 9.9

T .- I .3 1.1 1.3 Ia, * ~~~~I .1.f) 4.4 9.9 9.17

TOTALS 2 .r '1.6 32.1 11. z 6.4 .9 .2 lC0.0 9.5

lOfAL N3)MP[J OF O"SFRVAIIONS: 6768

J L

F

..LOt:AL CLIFAT'OLO6Y PRAI;CH 'LRCENIAGE FRE UENCY OF OCCURRENrE OF SURFACE WINu UIRECTION VERSUS WINE StEEOJSArETAC FRO9 -OLRLY OPSFRVATIONS

AIR 6rATHLP SERVICEIMAC

STAIICIJ NUP'rtF: 725267 STAI ION NAME: NIAGRA FALLS IAP 14Y PEPIOD OF PLCORO: 75-A7MONTH: ,AR HOURSILST): OOGO-02001

I WINE SPEED IN KNOTSOlf-ECTIUNJ 1 1-! 4-6 7-10 11-16 17-21

2 2-27 2A-33 34-40 41-47 48-55 GE S6 rTYAL MEAN

A IOFL'ZEESl I t WINO..........................................................................................................................................

I , 1 . 1 . 7 1 . . 5 . 7 8 1

I;., .6 .5 1.4 5.7

1 . 4 1 . 4 .6 . 4 3.4 8. 3

r .6 1.9 . 1..9 .1 5.4 7.7

L ." 3 3*o 3. 2 3 11.2 8.6

I Sf .1 1.4 1.3 .4 3.2 7.0

S.5 .5< 1.2 6.3

'S5 .1 ,S .9 .5 2.0 8.2

S .6 2.3 1 7 1 5 .3 6.0 8.1

S I .1 1.' 2,5 I. 1 1 5.5 8.4

S , . 2.7 4.6 3. 1 .1 11.7 947

'S$w .W 2,C 3.? 2,. 1.1 .1 9.1 10.4

6 . L 2;. 4.1 4. G .6 .2 11.3 10.4

6 .. ' 2.2 1.0 1.b .4 .1 6.5 9.4

I.. •T I D I. .3 .2 .1 5.7 10.41

f. N. . 1.5 1.? 1.5 1 4.5 8.9

..........................................................................................................................................vlRIABL- '

TOTALS S .4 26 3 1 .4 24.7 4 . . 100.0 p.

1071.t t.UMpf_ rF 0 SERVAtI ONS: q3C

GLJLAL CLI"ATnLOi.9 B1A!CH PERCENTAGE FREQUENCY Or OCCU~RRENCE OF SURFACE WINO DIRECTION VERSUS WIND STEEDUSAFEAC FRO- PIORLY OBSERVATIONSAIRS WfATH[R StElACE/PIAC

STATION NUMPEP: 725287 STATION NAME: NIAGARA FALLS lAP NY PERIOD OF RECORD: TAl-I?MONTH: tMAR HOURSILSTI: 0300-0500

I WIND SP(EED IN KMNOTSDIQECTIbN 1-3 N-b 7-10 11-16 17-21 22- 2 7 28-33 34-40 41-47 48-55 GE S6 TOTLE MEANIDLt'QFSI I WIND

... .. .. ... ...... ....... ... .. .. .M.9 7.1

!.NF I . .P .1 2~ 3.5 ?.

N1 .4 1M 1 1 .1 .9 47.D 8.2

'NE I 1 l .9 1.5 .1 S.1 7.9

F J ." 3.1 3.2 3.7 .1 10.8 8.M

St3. I .1 1.0 s~ .5 3.1 6.1

sr . 1 .3 1.1 6.3

,1.1 .6 . 2.5 6.6

s .5 2. 2. 1.?7 .1 6.A 8.3

Is .4 2.r 1.? 1.6 .3 6.1 8.M

sw .1 2 .4 1.3 2. 7 .6 .3 I0.M 9.1

I S 1.11 2.7 1.17 1.1 .1 .1 .2 7.S jj.S

1.q 3.7 4.7 1.2 .1 11.8 1.C

L,NW I 4 *M .p 1.5 1.5 .2 .1 6.6 8.1

Nw~ .M .0 16 11 . 1.2 6.6

lN4 I .- q- 7 1.5 1 7.-7 5.7 - -L

..................................................................................................................................

~I L CF I l WN

CAL . 7.7 I//i

TOTALS ,I6.7 7.R 28.S 21. 1.2 1 .2 100.0 8.2

..................................................................................................................................

TOTAL NUMtL#? CF O'SERVAT10II5: RIO

---------- L

oNE ] I. ,9 1,5 1 5, 7.

GLOtvAL CLIrA1,LOoY PRAPNCH PEPCNTAGE FRL(LUICY Of OCCUqRENCE OF SURFACE dIND UIRECTION VERSUS WIND SFEEOUSAFEIAC FROM tOt'RLY OBSERVATIONSAIR 'ATHER SEPVICL/MAL

STATION NUFt'LR: 7,5287 STAYICN NAME: IAGAR4 FALLS TAP Y P[EPIO0 OF RECORD: 7P-87

MONTH: MAR HOURSILSTI: C600-0800

I. INO SPEEP TN KNOTSDI0LCI&t4I 1-3 4-6 7-11; 11-1" 17-21 2"-27 20-33 34-40 u1-h7 68-SS GE 56 TtAL PEANfTJEGLrS) I W 6IND

.............................. ..... ..............................................................................I~~~I . 1. . . . 7.4

pNr .4 1.7 .2 . 2.0 6.C

r I 1. .2 . .2 .4 4.2 9.1

r -E I. z . [I. 6 .3 5.8 8.6

L .' 2.3 .7 S. [ .4 9.0 9,2

sr .' 2.4 1.0 .4 4.1 6.3

Fr I * ~ . .4 .1 1.8 6.6

Sr . i,5 .3 , .1 2.6 6.6

. ~ 2' 2.2 1 .; 7.1 8.0

S$. o. , 2.6 1.4 .2 7.0 8C.

S~4 I . Z6 3.f 4. .8 .1 11.6 10.3

IS .4 1.I 2.r I.n 1.2 .1 6.8 10.9

* .2 1.6 3.7 5.' 1.1 .7 12.7 11-3

N, I .3 1.6 1.2 1.1 .1 .3 4.5 9.5

N'. . 7 [.6 1.7 .2 .' 5.2 9.1

I . [.3 .' .1 4.7 9.4

.............................................................................. ..............................................VJAPZAqL! -

CA I 6.6 111111

TOTALS I 6.? 27.3 5. 2?.6 4.1 1.2 100.0 8.S [

..........................................................................................................

TOTAL NUPIPEQ OF C['SERVATIONS.: 930

GLuOAL CLIIATOLOGY 3FA'JCH PEPCEIIAGE FRELUECY OF OCCUPRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEOUSAiETAC FPO- V'ORLY OSERVAIIONSAIR WLATHEP SERVICZ/PAC

STATION NUM4LQ: 7;5287 STATICN NAME: NIAGARA FALLK lAP NY PEPIOD OF RECORD: 7F-87MONTH: MAR HOURSILSTI: 0900-1100

I INr SPEED IN KNOTS

VIPEC1107 1-' 4-6 7-17 11-16 17-21 22-27 29-33 34-o40 41-4 48-55 GE Sb ITIAL MEAN

ltEEs)I % WIND

.................................................................................................................................................* .9 1.1 1.4 3.5 9.

N Ir1.0 1.6 2. 1.5 8.7

Nt .2 .9 1, 1. .2 4.4 9.7

f1E .2 1. 2. 3. .1 7.6 9.5

E .2 1.14 3.' 3.1 .3 ,14 1 c.C

ISE .4 1. .3 1.7 8.2

i .. 2 1.2 5.@

SE1 , I.? .2 2.9 b.9

S 3 1 7 3.0 2.7 3 R.1 9.6

St. .1 ,4 2.3 1.9 5.2 9.9

S-1. 3.7 3.7 1.6 .9 ,I 11.7 12.2

6Sd .2 1.c 4.2 27 .9 q .1 10.0 11.8

I ,2 .1 3.1 S. 1.2 ,3 11.2 12. ?

I . p 2.G 2.7 n 6.2 11.8

N. , 0 *Q 2.4 2.7 .9 ,' 7.0 12.1

N1. 7 1 .3 1.4 1 . .2 41 9.5

701ALS I 2.' 17.14 34.1 35.1 c.Q 2.7 .1 .1 lO0.0 10.'

lGIAL NUMPLP CF O 'SENVAT1OIJS: 9301m -

ULO,At CLIPA7OLOGY H3ANCH PLRCENAGE FF[ cINCY OF OCCURRNCE OF SUrFACE WI(4 CIRECTION VERSUS WINO SFEEDUSAFETAC FRO FOLRLY O1SERVA7IONSAIR .FATHER SERVICE/AC

SIATION NUMPED: 7?528; STATION NAME: NIAGARA FALLS lAP NY PE-1OO OF RECORD: ?P-87MnNTH: MAR HOURSILSTI: 12C0-1400

I WIND SPEEO IN KNOTS

LIFECllT4 I 1-3 6-6 7-1c 11-It 17-21 .2-27 2P-33 34-4F, 41-47 48-55 GE 56 1(TAL MEANLDEGREES' I % IND

I, I ,6 ,E "4 3.9 8.6

NIdE .1 .2 1.4 1.3 .3.3 If, 2

NI: I , 13 2.r 1. 5 .1 5.3 8.6

rL .! 3.0 2.6 .1 7.7 9.8

L 1 2.3 3.5 .2 7.0 .IC.7

FSt ,. .S 1.I 2.0 9.8

I .? .2 .4 . 1.2 7.z

~.S I 5 . *1.6 8.4

• I, 1. 3 2.2 2. 1 .2 6.? 9.5

3S I . 2.0 I .8 6.2 11.6 o

SW . 3 3.o 6.6 1.3 1.) .2 13.2 13.4

WSW . . 2.7 6.6 1.2 1. .1 .3 10.8 16.5

- .4 1.6 5.6 1.1 ,9 10.0 13.9

U i~ W, .6 3 .5 6.11 1.4 .4 10.5 12.6

I (.0 Z.f a.. .4 .1 6.9 10.9

. ,1 .3 (.2 1. 7 .2 3.1 10,

...........................................................................................................................

V? RIAFLFI

IL

IATALS - Il.c 33.4 41.( 7.7 1 .3 oT' 100.0 11.5

TOTAL Pt,PP(Q OF oisERvArIONs: 94C

_ .- .

F-

GLOBAL cLIMATLOGv BRANCH Pf.CENTAGL FR(COULtCY OF OCCUPRE,C[ OF SURFACE WIND DIRECTION VERSUS WIND SPEEDtUSAFETAC FPOM OLRLY OtSFRVATIONSIR .fATHE? SFRVICrE/rAC

STAIICN NUPRER: 7,"5287 STAI ION NAME: NIAGARA FALLS IA, NY PLPIOD OF PECORD: 78-l7

MONTH: MAR HOURSALST): 1500-1700

I WIND SPCE'r IN KNOTSUIIECIION 1-3 4-b 7-10 11-16 17-21 22-27 2-33 34-4t 41-47 48-55 GE 56 TTAL MEAN

IOEb[EESI x S WIND

N 1. 3.C 0 .C 5.4 R.2

N N . 1 .c 2.4 1.4 5.2 .9

NF .p 3.C 1.9 .2 5.9 9.9

F NE • 1 .7 3.4 3. a .6 9.9 10.2

L. 1.S 2.E 4.6 1 1

FSE ,1 .8 *.5 1.6 10.6

S F .3 .1 .6 io.8

,5 F 1 .2 ,9 1.2 ii. .

S ,1 1.3 1.5 1.1 .2 4.2 9.2

$$W .2 1.9 1.6 .4 4.3 10.5

SSw . 3.9 b.1 1.9 .6 .1 13.3 13.1

WSW , E . 2.9 S.9 1.6 .6 .2 .1 11.9 13.7

, .9 2.2 5.6 2.2 .6 11.3 13.7

11W 0 l.A 4.2 1.6 ,9 9.2 13.7

NW .? 1.2 2.7 3.r .6 .1 7.A 1O.8

;NLW . .2 1.r 1.4 .2 2.9 11.0

ArRIARLI' I

TOTALS I I.z 11.2 32.9 91.4 9.7 *, .3 .1 10.0 11.6

TOIAL NuMP9?" Of O"SERVAtIONS: 9Y j.

*1w

CLJJfJAL [LIPAIOLOGY FRArCH PERCENIAGE FRELUENCY OF OCCURRENCE QF SURFACE WIND DIRECIION VERSUS WINO SFEEDUSAFETAC FRO- POLRL OBSERVAIIONSAIR WEATHfR SERVICE/MAL

STAIJCN NUMPEP: 725227 STATION NAME: PJIAGARP FALLS IAP NY PEPIOD OF RECORD: 78-A7M ONTH: MAR HOURSILSTI: 18U(!-2000

I WINr) PEED IN KNOTSDI'ECTIG4 I 1-3 4-6 7-1C 11-16 17-21 22-27 ,F-33 34-40 41-17 48-55 GE Sb TOTAL MEANIDEb EFSI I W INO

N I 1,' 1.7 1.1 .2 "4.7 7.8

'NF .2 2.2 1.5 * 4.2 6.8

7E .? 1.6 2.2 .4 4.7 7.9

t HE 3 2.6 4.2 ..N .2 9.7 8.7

S ,8 3.3 1.9 7.3 8.5

[SE .! .4 .. .5 1.5 8.4

. .1 .3 ,9 . .1 1.7 9*[

* S r , I , .4 , .1 1 .4 8 .5

S 1. 1.9 5* 1. 4.9 8.2

SS. ,. 1.4 3.1 1.5 .1 6.2 8.8

Sw 2.4 4.7 S.2 .3 .1 12.8 10.2

WS6 .2 1.1 3.5 4.0 1.0 .5 .1 10.4 12.1

I .? I 2.R 4. 1. ,1 10.0 11.8

wl Nd* 2.p 3. 1.5 .4 8.9 12.5

N . 2.2 1.% 1.4 .2 .4 5.8 9.6

1.. 12 . ,1 3.5 9.7

VARIA(LV

. TCIALS I ,. 22.7 36,c 2.1 4.8P I.. .I 1UO.o 9.6

. ........ ................................... . . ....................................................... .........................

TO IJAL htL.NIAE Of O'SERVA11ONS: Q3C

K

GLOBAL CLI'ATOLOGY PRANCH PERCENIAGE FECUL. CY OF OCCURRENCE UF SURFACE WIND DIRECTION VERSUS WIND SPEED

USAFLTAC FROM POLRLY OBSERNATIONSAIR '.EATHER SERVICE/IAC

STATION NUMRER: 7252b7 STATION NAME: NIAGARP FALLS TAP NY PEPIOD OF RECORD: IR-87

MONTH: MAR HOURSILST): 2100-2300....................................................................................................................................................................

- 4 WIND SPEED TN KNOTS

DIPECTION I 1-! 4-6 7-10 1It-6 17-21 22-27 26-33 34-40 41-47 48-55 GE 56 ThAL MEAN

IOF GRE FS I % WIND

.5 .P 1.0 1.2 .2 3.7 9.1

'E .P .5 2 7.2 6.7

h7 I .... 1.5 IC .4 3.2 7. .

.PIE .5 Z.*5 1. . .3 6.3 7.5

E .3 3.7 8.6 2.4 .3 11.3 8.4

[ SE I .[4 1.4 3.1 6.1

I .1 1.5 9 C

f Sr 1.4 .4 .3 2.2 6.4

S I . 3. 1 2.3 2.4 .3 4.5 6.8

SS, ,. 1.8

2.5 1.4 .7 6.2 8.8

IS. 1.7 5.3 . 8 10.3 4.,

,S I .6 1.7 3.2 2. 6 .6 .1 *1 8.6 10.3

. .1 3. 37 1.T ,1 IO.A 1D.

wN . q,' 2.2 ,C . 7.0 10.2

N;.1 t.T 1.P 2.? .6 1 6.1 1O.6

N 1. ia r. .2 4.3 8 .8

................................................................................................................................................V I PMIAPLE I

TOTALS I 4.9 2 6. p 34.1 23. 5,£ .7 ,1 100.0 8.6

.............................................................................................................................

TOTAL NUM1.0

OF OPSEHVATI0NS: 030

------- &eadL

-i

GLOtAL CLIPAIOLOGO BRANCH PERCENIAGE FREGUEFJCY OF OCCURRENCE OF SURFACL WIND UIRECIION VERSUS WIND SF11USAFYAC FROM POERLY OBSERVATIONSAIR 6EATHER SERVICE/MAC

STAIctN NUM4EP: 7752b7 STAIION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 7R-97MONTH: MAR HOURSILSY): ALL

................................................................................................................................................WIND SPEEo IN KNOTS

UI[CIOj | 1-3 9-C 7-10 11-16 17-21 22-27 ZE-33 34'40 41-47 48-55 GE 56 ILIAL MEANIDE~bPE.S) 2 I WIND

................................................................................................................................................. I .4 1I. 1.8 1.1 .1 4.s 8.2

f. N .2 1. 1 .1 6 .0 2.9 7.9

NF . 1. 1.6 11 Z2 9.9 6.7

F,5 q 2.4 23 i .2 7.2 8.9

L .4 2.1 3.1 2.9 .2 8.7 9.1

rSE , .lr .,9 .5 2.6 7.5

S[ .1 .5 .5 .2 .' 1.3 7.9

cSE ,. .0 .6 49 .0 . 2.0 7.S

S . c 2.0 2.1 1.6 .2 6.5 8.7 k.

S . 2 1.9 2.3 1. 7 .3 5.8 9.2

SW I I, 4 .? 4.2 1.0 .4 ,1 11.9 11.1

6 hSW .2 1.' 3.1 3.2 1.1 .5 .1 .1 9.9 12.1

A I .2 1.1 1.1 5.2 1.3 , 11.1 11.

6hw. 1 1.9 2.1 2.6 .8 .3 7.9 11.3 .

NW .2 1 .. 2.C 2.2 .9 .4 6.1 10.5

* t1 .I 1 .3 1.' .1 9.2 9. 3

..... .... ..... .............................................................................................. ...........

vArTARLE

ICIALS I 3.4 21.9 32.C 31. L 6.f 1.7 .1 .1 l0.0 9.6

TOTAL NUMtER P'F O' SERVATIOOJS: 799C

L

F

GL~>AL CL1M TOLOr¥ PHAJCH PERCE.1A E F RPlA NCY OF OCCLP FNCE OF SURF AE E NO IRECTION VERSUS wlNo Sft EO

USAFETAC F 0 FOLHLY OBS RVA110N

AIR bFATHLR .ERVICE/MAC ':TAI1:N :ULP: 7ZSZ87 SIAT|CN NAME: NIAbAPA FALLS IAP Pl' PERIOO or (ORO: 7-8R7

M hSNTH: APR HoUpSILSt 0300-0200

' CI CC | C 1 -3 4-b I-IV 1- 1c 17-2 1 22-,7 2P-33 34-40 4 1-47 49-55 GE 56 ( TAL MEDNAN

." f E b;E1 S I I WIND,

2 . 7 .151 7.9

NE I .P 1.I 2.0 7.1

KL q 1.2 .1 2.9 7.9

[I. . 1.9 1.7 I.. .I .2 6.0 9.7

E.7 3.7 5.1 1.7 £1. 7 .6

SE . 1. 1. 1 .1 3.4 7.6

SL .2 1.1 1.7 .2 2.q 7.2

St. .3 1.C .7 • 2.1 s.8

I 4. 9. 3.3 .1 9.6 6.5

. 9 2.9 g 6.9 6.9

SF .4 4. 3.r .4 .2 .2 1 9.9 8.2

.54 .3 1.6 1.9 2. . .4 7.1 Lo.I

W .4 1-6 3.7 2.q .2 8.8 9.5

WNW. ,7 3.3 2.9 .7 7.0 In,.

Nd. 1.' 2.4 1.9 .2 S.1 9.1

yAAflLI I

CAL" 66/1

TOTAL$ 7 3 . c 9O.Or I . s qC 7.

...................................................... .......................................................................................

10TAL NU193LR OF OtSEkVA1|O'S*S ouC

L 1

GLOBAL CLIPATOLOGV BkANCH PLRLEI.YAGE FP[^UENCY OF OCCURRENCE OF SURFACE WINO DIRECTION VERSUS WINO S;(tDUS AFTAC FRO" POLULy ObSFIVATIONS

AtR 9FATHrR StRVICEttAC

STA7ION NUMRLP: 7-52b? SIA ICN NAME: NIAGARA FALLS IAP NV PEIOD OF RECORD: 7R-87MONTH: APR NOURsILSrI: 0300-0500

...........................................................................................................................................I wIND SPEED TN KNOTS

C 'r[ECION 1 -3 4-6 7-1C 13-16 17-21 22'27 2F-33 34-Q 41-47 48-55 GE 56 TCTAL MEANt IOEGEFSI I WIND

............................................ ..... ...... ............ .................................................................S .7 3p I.? .6 1.0 7.1

NE* . 1.3 . 1 2.2 7-2

Nr . . 8 1., 1.0 .C 3.9 8.9

ur: .6 2.6 1.6 1.7 .. 6.7 8.5

E . 2- 7 2 .2 1.3 .1 9.9 7.5

r I .SL 1.4 1.0 .7 3.2 7.6

S I .2 .3 .3 . 1.0 6.1

st *11 1~ ~9 3.11 7.

S . 2.p 2.2 1.0 1 7.7 7.6

I .7 2.6 2.c 1.3 6.7 7.3

S , 3.6 3.1 1.9 .4 9.2 8.1

W ASd e . 2.q 1.2 .3 3 6.9 9.7

*I .2 1.6 7 3.3 .1 ,2 ,A 9.0 10.1

* 6W I .41 . 3.2 3.31 .2 .8 9.9

N.: .1 1.1 2.c 1.4 .1 S.2 9.3

N1W . .13 1.6 1.6 N.6 8.8

............................................................................................................................................VARIAPLE I

CALM I//,i/III7j/,,,/,, ///1/'/,I/, 9.7 ililil

IOTALS I . 21.2 3S.? 2. 1 1.7 .6 .1 100.0 7.

............................................................................................................................................

TOTAL NUMPLP Of O'SFRVATIONS: 900(

..? L

,*

GLOAL CLIP&IOLOGV 3RA.iCH PLRCENTAGE FRL(L~hCY OF OccUQRRCE or SURFACE WIND DIRECTION VERSUS WIND STFEOUSAFETAC FQO- POI'9LY OOSERVATION

AIR .FATHEI SERVICE/MAC

SIAIICN NUIFTR: 7 5287 STATION NAME: NIAGARA FALLS IAP NY PE*IOD OF RECORD: 79-87

MfNTH: APR HOURSILSTI: 0600-0800

............................... ..............................................................................................................WIND SPFED TN KNOTS

DIVECIllm I 1-! 4-b 7-10 11-16 17-21 22-27 2P-33 34-40 4147 4P-55 GE 56 TITAL MEAN

(IE E S I x WIND

.................................................... ...... ..............................................................................],I 2.6 7 4.2 8.6

lNE 1! 1.0 .2 .1 2.7 7.8

E .1 .4 .0 1 . 1 z 3 4.2 I0.6

EI.L ,. 1.9 2.9 2.1 .4 7.6 9.4

t ; 2' 4.61 2. z 9.9 8.1I

FSE . , 2.1 .9 .4 3.8 6.7

I .' 1.2 .6 2.0 5.8

S.7 1.6 1.1 7 4.0 6.8

S . .4 3. 2., .1 8.8 8.4

S .2 1.6 3.3 , .2 6.2 6.5

S' .2 3.1 3.4 2.1 .4 . 10.1 Q.C

tS i 1.E 2.1 2. .$ , , 7. 3 II.S

.2 1 C 2.3 2.1 .2 .2 6.7 10.6

6K ,1 1., 2.0 2.7 .4 6.6 10.2

f. .I ,1 .1 2.r .2 S.2 IO.C.

iNJ ? , . 1, 2 3.9 10.5I

.........................................................................................................................................4P IAbL(

CAL- III///II/ 11/ 1111/1/1Ilp/lp II /M 111.46.9 IIlll

WOTALS I 611 24. 1 36 .6 Z4.1 3 9 .4 100.0 8.5

..............................................................................................................................................

TOTAL NUMBER Of OSERVAIIONS: 9; L

S .- '..-

KI

GLOBAL CLIPATOLOGY PRA-4CH PERCENTAGE FREQUENCY OF OCCURRENCE OF SUPFACE WIND DIRECTION VERSUS MIND SPEEDuSArE AC FRO? 'OURL OBSERVATIONSAIR W[ATNER SERVICEI4AC

STATION NUPMEP: 725287 STATION NAME: NIAGARA FALLS TAP

NY PEPIOD OF RECORD: 78-87

MONTH: APR HOURS(LS1): 0900-IIOC

I WIND SPEED IN KNOTSOIr'ECTTo I 1-3 K-6 7-ie 11-16 17-21 2Z-27 2P-33 34-4O 41-47 4S-SS GE 56 TETAL PNEA

IOE.PLESI % WIND

N ,.: 2.4 1.1 .Z 9. 1

% hu .9 .4 *N .1 2.1 7.9

NE 2.1 . . 7 2. .6 8.c 12.4

I NE oP 2.6 3.2 .2 6.8 10.5

. ..C 5.1 3.1 .t 10.7 10.2

(I S 1. 1.1 .9 .2 3.7 8.7

S I .3 1.2 .q ,1 2.6 6.5

I .2 I. 1.6 .4 ,1 3.7 7.K

S 1.2 2.1 2.r .2 59 iC.4

S t1.4 1.K 3.1 .7 .1 6.8 11.1

I .1 1.3 K.7 6.9 1.0 .K .1 12.6 11.6

vS61, 1.2 2.R .! .2 ,' .2 9.0 11.6

I .9 1.7 2. 1.1 .7 .1 6.8 12.S

N. ,1 ,6 3.! 3.' .6 7.9 10.8

N,6 1.1 1.7 ,1 3.4 10.2

.................................................................................................................................................VANtIAPLE

TOTALS I ., It 33.? 38. N 7.' 1,' .4 100.0 10.5

.................................................................................................................................................

TOTAL t.U F'LR OF OOSERVATIONS: L. (

-~L

r

L;LAL L.IITVLOGV RANCH PL3.[EN.TVI[ FPE '.UCtCY OF OCCUPRFNCE OF SURFACE WIND DIRECTION VERSUS WIN0 SE[OUSLEG AC FRU '-OLkiY O9SrRVOTIONS

AIV ,[ATHt6 SCVICEIF'aC

ST011. tU1PtLF;: 7'52 7 SAT ICIJ NAME: Pll1GAR0 FILLS lAP P-y PLMOO OF PECOPD: 70-87

MONTH: APP NOURSUL$3: 12CO-1'00

. .. . .I Itlo P[ I KNOTS

o0rECITI I :- 4 -6 7-1(1 11-lb 17-21 2 7-27 7R-33 34-t4 41-7 48-55 GE 56 T(1*1 I'EAN

(ElUE .I . ..NO ...

Nr 1, 3.2 10.1

1 . .4 .4 3.1

IE, I .1 1.1 1.6 3.C .4 ,. 11 1

L 2.6 3.7 1.1 3.4 I

LSL .I .3 2.1 1. : 3.4 7.5

.t9 1' .

.. 2 10 .

S3. 10.

2 7 2.4 2.2 .2 Sn 1[.2

56 I1 4.0 7.3 3.1 .1 13.7 12.1

,5A ,"' 3.4 5,4 1.6 .4 ,4 12.0 1.6

1.. Z . 7 .7 "4 .1 6.1 13.C

I .2 3.; ' ~,I I.? .7 1.0 12.5

t,,,7 ,( .( , 9.1 11,2

P.. 3 . 3.6 4.L 6 7'3 3.

,'. I . 1. I j.F 1.2 4.3 9.C

..................................................................................

CALL

...................................................................................................................................

TOIAL t.Upq'ER pr OrS3HVAIO : Cj'~L

ULU': AL CLIPATOLI,GY rVANCHl PLPCEI.AAGE F PE .UE LCY OF OCCURR Efir oF SURFACE WIND DIRECTION VERSUS WINO SFEEOUAP1.AC FRO- OtRLY OSFRVAAIONSAIR WEATHER SLRVICE/M4C

Sitl]Cfj N12mQL": 1-5ZEl STATION. NAMiL NIAGARI, FALLS TAP N~Y PEPIOD OF RECORD: 79-A?MONTH4: APR HOURSILSAD: ISC0-1700

I WINDf SPEEn IN KNOTS* JITECIIU4 1 4- 4-F, 7-10 1 1-16 17-21 Z 2-2 7 29- 3 34-40 4 1-47 4e-s5 GE( S. TcTAL PIE AN

I * cGE fS 1 2 WIND

f I 71 1 3 1. S.9 9. 3

'SF . 10 . .2 4. 3 9.6

ZE 2 . 2. 2.2 .: 1 4.9 11

rt2 I. 2.7 c. .4 4.9 11.5

.1 .9 2.? 3. R .9 7. 3 13 .8

I 1 ! .e * 2.1 9.8a

1 .1 3 .3 2 .5 9.1

I 1 .! . 4 1.7 8.9

S . 7 . 1. .12.4 Q*5

z5 . .1' 2. 7 .5 6.P' 10.6

I .5 3.9 . . 7 . 14.1 12.

I ~2.C' 1. 4 1. 3 .6 6.1 12.0

~IA I12 2.? 4. 4 1. 93 .1 12. 3

So I . p 4.1 3.' . . . 9 .4 11.4

CAL 7 .9 2. .74. 10.5/

.............................................................................................................................

10 1 A1 Nut-1, I OF O SERVAIONS QC

GLORAL CLIIATOL~bY BRANCtI PERCENTAGE FRLUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS IN0 SPEEDUSAFETAC FROM FOLRLY OPSERVAIIONS

AIR wEATHEP SERVICE/AC

STATION NUMRLR: 715287

SIAIION NAME: NIAGARA FALLS TAP NY PERIOD OF RECORD: 7p-A?MONTH: APR HOURILSI|: 180-2000

WIND0 SPEED IN KNOTS•IPECTIXIN !-3 4-6 7-10 11-16 17-21 22-27 2P-33 34-40 41-47 48-55 GE 5b TETAL MEAN|UF rS) % WIND

..........................................................................................................................................! I 2 .P 1, 9.9 8.2

liNt V I 1.9 * 4 3.6 7.8

N. 1.7 3.2 , .1 .1 6.1 8.

ENE I .. 1.9 3.4 2.1 .1 .1 7.9 9.9

L I.C '.6 N.? .3 10.1 1D-3

IEE .L . FP .6 1 .6 8.9

IS .1 .4 .4 4. 1 1.6 6.6: SC .1 .9 ,9 .6 .1 1.6 86

S I Z .q 2.1 .9 .1 5.7 8.C

.Sd 3 1 6 3.3 2.r .1 7.3 a.7

cS4 2. .A1 3.9 .9 .2 15.1 10.3

11 S .1 1.1 3.3 2.2 .7 .4 .1 8.2 11.3

I .1 .1 1.9 1.2 .6 .2 '6.7 10.9

WNW 2.2 3. .4 .2 7.9 11.6

NA .1 1.9 3,a 2.7 .7 1.7 9.9

:. 1.2 1.6 1.2 .3 9.1 9.8

VAIIABLr I

TOTALS I ?.C 19. 7 63.! R .' 4.i 1.2 .3 100.0 9.6

t0 JAL NUMIBER or 0OPSERVA 71 OlS: 9072

IL

i ..

ii...- - - -- " _

"GLOL CLIPIATOLCGY RANCH PERCEAAGE FPLCUENCY OF OCrURRENrE Of SUPFaCE WIND DIRECTION VERSUS WIN0 SLEDUSAFETAC FPO- POLRLY OBSERVATIONS

AIR ;EATHFR SERVICE/-AC

STATICN rIJMPER: 7,5267 SIATION NAME: NIAGARA FALLS lAP NY PE.RIOD OF RECOR: 701-87 1_ONTH: APP HOURSILS1: 2100-2300

I WNO SPEEI? h KNOTS

l IOCTN I 1-3 4-6 7-111 11-16 17-21 22-21 2P-33 34-4o 1l- 7 N8-55 GE 56 TOTAL PEAi,AIDEGREESI I I WIND

............................................ ... .............................................................................N 19I~ .3 7.6LN I *" 1.7 l.'q 1.0q3 ,

%E1 A - 2.4 6.7

NE , 2.C 1.1 .6 3.9 6.8

f NE . 1.8 l8 1.2 .3 .3 S.3 10.N

L L . .1 5.' 4. 3 .1 11.9 9,6

f! SF 2. C 1 .1 . 7.6

sr . 7 1.3 .1 2. ?. 7

.SE .3 "P .6 6.7

S . .A 1. 3 R.6 6.A

SS I 3,e 1.9 .3 .1 6." 6.4

S. .4 4.6 .q 2.C .1 , 1.2 A.C

Sw 1. 4 3.2 1. 7 .4 .? .1 7.2 iO.S

w'., 1.2 3. .

1, .7 ,3 7.? 10.5

6N I , 2.6 2. 1 . 6.2 1 ,

N. 1.6 2.2 2.9 .4 6.6 9.8

• '..N* 1 .7 1 . 1 40.6 9 .?

AATALTI

TOTALS I lt' 3.0C .St.6 22.1 7. 1." .4 10.0 A.11

.............................................................................................................................

TOTAL NUMHLQ OF O!SERVATIO4S: 903

€ "

- -

rLOEAL CLIPSIOLOGY BRACN PERCENTAGE FQEQUENCY or OCCURRE4CE OF SURFACE WINO DIRECTION VERSUS WIND SFEEU

USAFETAC FROM tOLLV OBSERVATIONS

AIR ;EATHFr SERVICE/MAC

STATION NUMSLR: 7^5267 STATION NAME: NIAGARA FALLS lAP NY PEPIOD OF rICORO: 19-87

MONT": APR MOURsILSTI: ALL

.1NO SPEED IN kNOTS

OI9ECIIU I4 1-3 4-6 7-10 11-16 17-21 2 2-Z? p -33 34-0 41-.7 48-5S GE 56 T(TAL MEAN

IUfbQL, SI % WIND

.........................................................................................................................................N .. 1 2.2 1. 1 .7 49 8.5

fNr ,1 q 1.2 .5 .1 2.6 8.2

hE .1 .9 1.7 1.7 .2 .1 .0 4.3 9.9

I1 tl 1.6 2.3 2.5 .3 ,9 .1 6.9 10.1

L .4 1.7 4.? 3. 1 .4 9.9 v.4

f5E .2 I . 1.1 .P . 3.3 8.1

SF I .2 . .7 .c 1.8 7.2

'S .' . .. 2.6 7.6

S I .' 2.? 2.1 1.4 .1 .1 6.5 8.C

I . 1.9 2.3 1.1 .2 n 6.5 8.7

S. Z .' 2.6 4.4 3. .1 . . 1Z.1 10.2

.$w .1 2.2 2.9 3.1 .6 .4 .2 .' 8.6 11.8

I .. 2.1• 2.4 2. ' ,6 ,3 ,0 ,0 6.9 11.1I

Nw .2 . 2.1 3. .6 .1 1.8 11.2

N. I . 1.2 2.9 ?.? .4 *' ,r 7.2 10.3

.........................................................................................................................................VARIABLE I

TOTALS I .~ 212.1 3S .5 37 4. .7 .3 1 ID0.0a 9.4

.........................................................................................................................................

TOTAL NUMBER~ OF O-SER RAtIONS: 712wU

• L

CtL; ]q IIII

GL3eACLIM'ATOLOGY PEAp4CH PLRL(r.IAG( FML aLNCY or OCCURR!NCE OF SURFACE WIND GIRECIION VERSUS WIND SICEDUSAF 7 C EPO- POLRLY ORSfR8ATIONS£19 rAiiHER SERVICEiMAC

STATION NUMUEP: 72S287 STATION NAME: N1AGARI FALLS lAP NY PE0lfl Or FECOFPr: 7r8.81MONTH: pAY HOUpSCISII: GO0c-0200

.........................................................................................................................................6IiNO SPEED IN KNOTS

DIFECIION 1 1-3 14-6 7-10 11-2b 17-21 22-2 7 ,9-S3 314.40 412-47 48-55 GE 56 I(3A1 MEAN(Of IEFESI I S WIND

.............................................................................................................................

%r 1.2 .8 2.9 5.9

NE I o 19 . 3. 3 7.6 .

th 1E 2 2. 11 84.4 7. 1

E 1. 4.3 2.a. .6 6.C

r E ~ ~ 1.14 .14 2.7 5.y I

sCE I .~ S. 1.30 . 3.2 5.5

S 1 . 1 . ? 3.2 1.0 9.5 6.6

s3S; I .6 S. 3 '.2 1. .21 11. 3 6.9

SI I .9 4.s 6. . 3 11.9 7.7

* .4 .4 3..2 3.n' 1 . 8.14 7.7

. I I.e 2." 2.3 .2 .7 . 6.q4

I~ h I 1 1.2 2.9 .3 4 5.3 8t. 8

.......................................................................................................................................8'l.IABLEI

CPL" il im1 / l // it I ////1 10.3 1 11

IrlALS 1 . 2. 32 .7 87 1.2 100.0 6.2

.........................................................................................................................................

IOVAL rUM8EP3 F O1SrPVAT OS: 930

DLOCAL CLXI'II6OLOG6 PrCH PERC:ErIAGE FREQUENCY Of OCCUlRNCE OF SURFACE 61f OW'IN C'ICTON VERSUS WIN O SPEED

USAFLTAC FRO- -OLRLY ObSFRVATIEONS

AI RrATHEP SrRVICE/fPlC

STATIVN NUMPLR: 7?5287 STTION NAME: NIAGIRA FALLS IiA NY PERIOD OF RECOPD: IP-S7

MONTH: pAY NOURsILSTI: 0300-0500

616(3 SPEED IN KNOT0S

"lPlClUo4 I 1- 4-b 7-IC 11-It 17-21 2?-Z7 0-33 34-40 . 1 -- $? fla-55 GE 56 |(AL MEAN

IUFIIR .ES I I WIND

................................................................................................................................... .3 2.2 *s .3 1.5 5.6

:NE I C~ 1. . . 2.9 6.6

|6 ,! 1, .6 .6 2.9 7.1

ftNE .4 3 . 1lt 1.7 6.6 7.c

|L .9 3.3 Z.6 . 7.1 6.2

S5, . ; r 1. 4.1 5,8

$1 .4 1.C .4 1.8 5.2

" SE ," 1.6 .3 , 2.0 6.1

S .4 3., 3.3 ,f 8.2 6.6

ks. 1.1 5.' 3.6 .4 10.2 6.3

SW .6 4.2 6 .5 3.,- 2 12.6 8.3

,5w 1.1 ., 2.6 1 .1 .2 7.7 Y.5

, . 4 6.' 2.2 , .1 7.6 6.6

Wa , I . 2 4. ? . .1 7,0

N ,1 1.2 I. 1. . 6.5 9.,

"'w • 4 1.6 .4 , 2.6 6.C

VPI.TAPL |

CALP ~ j/~,#,Jj///.#// IIjj/IjJ/I/jh/I//jIj/~j/jjt/ 11.6 1/111

10 1 | 7,6 19. i .9. I U.1

. .1 . 100.0 6.I

IOAL uMPL. or O'SE I AIIONS: 93C

FJ

-'ii

(iLpAL CLIATOLOGY ERANCH PEOCEi.TAGE FPEfRENCY or OCCURRFNCE OF SURFACE WINO DIRECTION VERSUS WIND SFEEDUSAFETAC FPO- VOtRLY ORSERVAVIONSAIR WEATHEP srnvICE/MAC

STATION NUMBEP: 7'5267 S T|uOs NAME: NIAGARA fALLS ZAP PIT PEQIOO OF RECORD: 7p-87MONTH: 1AY HOUqsILST): 0600-0800

I oINo SPEED TN KNOTSDIrECTION I 1-3 4-6 7-10 11-16 17-21 22-,7 2P-33 IN-ND 41-4? 48-55 GE 56 TETAL MEANSlbUESPEES I I WIND

N 1 2.' 154.5 17

FIN1 . 1.' .1 1.8 7.4

NE .? . 2.7 1.4 4.4 9. 3 6-

F1.6. 1.6 1.6 5.4 8.2

L 3.5 3.0 7.8 7.C

fSE I . . 1.2 .1 3.4 6.3

. .I.C .s .1 1.9 5.8

1Sr .' 1,? .5 .1 2.7 S.4

S I . .3. 4.') 2. 4 .110.4 p .

55- ,1 q, 4.? 1.1 9.2 7.4

S. .* 5.4 5.1 3.S .5 15.3 8.3

1S I .? 3.2 3.4 I, .4 9.1 8.5

lta 2.8 . . 1 57 8.6

%NW I.5 2.C .V .143 a. c

FIN~ I C 1.2 1 . 4 3.5 9. 3

.............................................................................................................................................VIADLE I

IDIALS I 4: .4'. 35.? 17. 1.4 .1 100.0 T.4

TOMA rf.U48L" OP 0'StkVATIONS: 93-i

~L

----- - - - - - -

F -.. ..

IM

ULO.AL CL110lCLOv SRANCH PERC t.TAOE FIELUENCV Or OCCUPRFN(t. OF SURFACE WIND DIRECTION VERSUS WINO STEEDUSAFfIAC FPOM OLRL OPSERVATIONS

AT1 WIATIHER SER1V4IfEMC

STATInt. NUmER: 7152b7 STAIECN NAME: NIAGARA FALLS lAP !iv PElIOO OF PECOPO: 7P-87MOFITH: F"AV HOURsILSTI: 0900-1100

I wIND SPEEn IN KNOTS

* lECT|ON 1 1-! 4-6 7-10 Il-Ih 17-21 22-27 21-33 34-40 N1-N7 NA-55 GE 56 T7(AL MEANIt[4, EE I 8 WIND

.............................................................................................................................................N I~ 11 I*-3.5 9.2

P . .9 1.7 .! 1.4 8.8

N l .1 *8 1.9 1. 8.1 9.2

r tr I * 1 7 .6 2 .C 5.9 9.8

I1 I - 3. 1. .6 8.6

5 I I .Y . 2.5 6.7

s , .6 .o 1.8 9.1

st.1 1.1 . . 2.6 7 2

s -t 3.7 i 7.7 7.9

ssd I .) 1..7 N .. 9.6 .1

S6 .,4 J.F qN. 7.r 1.6 .1 17.6 10.8

I ., 2.- 3.3 2.8 1.2 . 9.7 10.3

I e! .2 1* I.. 4.9 8.7

r. w . 1 2.3 7." .1 5.6 9.7

INN .4 1 1 1 .111 //.1/8.6 9.7

IIICTALS I 2 3.k z1.2 4.6 3.4 .4 100.0 9.7

TOTAL NUMPEr or O0SfMVATIO-JS: 931

iL

iF

' - -.. -L .. . .

IIt

GLUjAL CLIPITOLCDGT RIWNCH PERCENTAGE FRECUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFE7AC FROQ4 O1HLy OBSERVATIONSAIR WE3ATHEfR SEPVICE/MAC

STATIrN NUMIILP: 7252s7 STATICN NAME: NIAbA A FALLS ISP NT PERIOD OF PLCOPO: 7A-87

MONTH: MAY HOURsiLSTI: 12CO-1400

wINOr SPEE TN KNOTSCIPECTIo i I- -! 4-b 7-10 11-16 17-21 22-27 2F-33 34-40 91-41 48-55 GE 56 FETAL MEAN

(DE ,IEESI I WIND

N .1 1.6 2.5 1.1 5.3 8.2

"N1 2.7 1.2 9.5 8.8

NE I . 1 2.2 1.6 4.8 9.5

I i *4 2.7 3. 2 .1 7.3 i0.4

L1 1 1 . 1. I .? 3.6 f o .

tSr 1 .5 ,1 .9 A.0

Ic .- ? 1.3 6.6

'SL ." .1 .P I .1 2.8 8.8

S • . 1.8 2.5 .9 .3 S,.4 t.8

S- ,,. IC 3.8 2. 9 .4 7.7 9.8

I .2 2.9 5.3 q. 1.8 .6 19.8 11.9

65W ,1 1.1 2,.C 8.3 1,1 .3 9.6 12.

1 1.2 . 1.7 .1 8.9 9.8

N W .2 3.7 2.9 1.9 .8 .2 7.6 10.2

I,., 1.' 3.7 7. 3 1 ?.S 9.4

PNw 17 2.7 1.9 1 5 .9 e.g

..............................................................................................................C A - . /.*F I

IClALS I Id.? 37.4 3, r.' 1.2 IuO.O 10.1 .

...... _...... ....................................................................................................................

TOTAL IuPr~tD OF O'SLRVATIONS: 3['1

~L

ELCJ AL CLIPIAICLOGY CkNCI PLPCI1lAE FPL :UE6Y OF OCCUR NCE OF SURF§CE WIND DIRECTION VERSUS WIND SI [EDVSAfI?!WC FNhM VOENLy 04SIRVA1I0NIAIR h'AINEP SEP AICf/PAC

SIAl7e. NUIYLR: 7Z52d7 SIIICIh NAME: FJIA(,APO FALLS lAP fly PEPIOD Of rECOPD: 70-97MR'NTH: MAY HOUR5ILSI: 1500-1700

I wIND SPEEDIR N sNOlSOI1-LCTIOd 1-3 4-6 7-10 11-16 17-21 222-27 2 8-33 34-40 61-'.7 '6-55 1,E 56 1(TAL MEAN4rF6O9ErSt a WIND

I. I1.' 3. 1. .26.1 9.C

P.RE I ~ .9 2.61 1 .5 -4.8 9.

&LI. 3.3 .R7. 3 9.61

rP.E 1.6 2.! 6. r .2 ?.a 10.'

L . 6 1. C~ 3.4 q .3

St .? q2 . . 7.0

sl I* .2 6.S

5 ~ . 2.9 1 . r 7 6.8 9. 3

5iU I 3 .6 ".p . 7.3 9.8

w . rI~ 5.9 10.b 1.9 i 19.6 11-9

651W 3.! 6.90 1 .5 . 11.6 22.6

I 1 I. 1.9 I. S. .3 9.2

h. z Z. r 2.7 1 . . 6.9 9.6

,4hN. I1. .3 1. .1 6.1 8.7

I0 I LS 1 ,. h. 1 13.9 30.? .' 110.0 10. 3

TOTAL hiltFit' OF O'5rNVATIeN!., : in

GLOu*L CLIP*IOLOGY BRANCH PEPLINIAGC FPCINCV OF OCCUNRrNCE OF SUPFACE WIND DIRECTION VERSUS WIND STEEO

USAF IAC Fla- POIRLY OBSFRVAIODNSALP A THfR SFRvirCA:(

S1IT IN NUPPI : 775267 STAIICN NAME: NIAGARA FALLS IAP Ny PEPlOD OF FLC0PD: 7-87MONTH: MAY HOURS

6LSI): 1330-20CO

. . . . . . .;. . . . . . . . . . . . . . . . . . ............................................................. I .... ....

WhINE) 5jPtEo IN4 KNOTSLIEC.ICI I i-3 £1-6 7-ir 11-16 17-21 22* 7 2-33 31-410 41-41 'P4-S5 GE 56 I3TAL HEAN

I L G[FS I WIND

N.. 2.r 3( . . 2 6.7

N12. .1 7.?7

hr . 3. .- 6.8 7.6

Thu ,I 2 .9 3.q ' *= 9 .C A . 3

£ I2. 3.2 1. .1 7.3 8,2

f~ 1c . I.Z -5 . .'1 6.2

I 1.r .6 .1 1.7 6.6

1 * .3 .9 2.2 6.1

! 3.! 8.' 1, 3 P.9 7.7

$S. S .7 3.7 1.1 .1 7.6 8.1

Sw I . 8.3 . .1 16.2 9. 3

US. I . . 1! 3. .6 9.8 10.5

1.. 1. .7 .1 3.8 8.6

I .., 1.7 1.9 1.7 .8 .1 6.1 9.5

kw2q . s.5 8.4

'.... j.r . £1.2 8.2

... . ........................................................................................................................

TOTALS I ,1 29. 1 j C . 1.6 ,1 130. aO ,3

T01AL %UmqP cF O*I(RVATI?.S: 9IL

j

I.I

GLOUAL CLIPAILLOG, elANCH PERCI.1AGE FR[.L E6CY OF OCCUPR'6CE UF SURFACO WINO DIR[CIION VFRSUS 61NO SF([DUSAFrTAC FPO' FVOIRLY ORSFRVAIONSAIR WIATHEA SERVICE/MAC

SliAIC41 NUMI 9 : 7?5267 SIATION NAMr: N1GArA rALLS TAP NY3 PEPIOD OF PECORO: 74.47MONTH: MAY HOURSILSII: 213O-2300

I .IND SPEED IN KNOTS

*Ib1(CI!(,4 t -3 4-6 7-IL 11-16 17-21 2Z-27 ?P-33 34-40 41-47 18-55 GE 56 ICTAL PEAkIOF(IEEE I WIND

..................................................................................................................................

K N. 3 . P sp . 1.6 S. 7

I - , I£ 1.PO 6.5 6.9

I [.9 9.3 5.2 1.1 .1 36 *5. l.b ?. I

!5 I . . .F 2.6 6.01

SE 1.5 1 .1 2.9 5.9

St .4 1.1 2.? 6.9

7. I , 5 3 .? 7 13 6.6

'. 1! *. 3.2 1 9.7? b.@

S. ~4. 7 501 ! .3 11. 1 6.2

1d . 1. 7 3.' . .1 6.6 6.1

I Z 2.9 % .3 .' 5.6 7.7

NW 1 .i 3 1.6 1. 3 9.2 6.9

2.rAq r I

I01OL5 I .1 ,1. 1 1. .'

. Ov. a 6.7

...............................................................................................................................................

&OrAL NU 0 OF O9SEVATIIOS: 93C L

"LO.BAL CLImAIOLUG IRANCH PLPCEhTAGE FPEUFNCY OF OLCUPA'r'CE OF SURFACE WIN40 DIRECIION VERSUS WIND SFEEDuSAF.TAC FP" FOI'WiL' oRsrAvATIONSAIR ofATHFR SFcICIMA.

SIAIICI NUM"EP: 72927 SIATION NAME: N4AbArg FALLS TAP NY P.QIOD OF PLCOPO: 70-97MONTH: .AT HOURsIL$1I: ILL

I WIFIND !7PCE' YN KNOTSLT'ILCTION I II '-6 1-1C I- It, 17-21 22-27 2°-33 34-90 4 1-47 46-55 GE 96 TOIAL PEAN

IUfG"?LtS3 I W ID1O

i ..e 1.6 .. .r1 . . 3 7,S

t r I ,P 1 3.0 .C

t, 1 1. 2 2.1 1.1 9.9 8.9

rI~ I f ~ C. 2.1 2. L .1 6.6 11.6

IL Z . 7 3.C 1.r .1 7.2 7.4

I SE 1.1 .9 .1 2.4 6.2

I -. 2 . .6 a 1.9 6.

5F . 1.t .7 ? 7.3 6.7

5 .4 . !.4 1.2 .1 0.6 7.5

~SyJ I . . 3.6 I .1.0 7.9

3 . f, 04~ S. .9 .9 19.9 9.8

6%W .4 2.0r 3.2 ' a, .7 9.1 9.9

4 PAW I 1.9 2.2 1.3 .9 I 5.S 9 .

hw .; 1.6 2.' 1.' .1 2.. 8.8

VA6aIAILE

I/L 4 .I111,T OTALS

, I s :9 .. 3 .,7 :1. . 100.0 8 C

TOTAL 1, 0"Plfo OF O'$SEROATIOM,': 144 ,

rLOt-AL CLIfAl10LOG PAtNCH PERCEN1AGE FRELULINCY Of OCCUQPrt.CL OF SURFACE WINU UcRfCTIoN VERSUS WIND SfEEDUSAFITAC FPO' FOI tRLV OPSFRVAI|ONSAIR 6,1A T14rP SERVICE/MAL

SIATICF. NUMnLC: 775287 STA*ICN NAHF: NIAGARA FALLS hAr "y PQ100 OF PECOPO: 76-870t411H: JUN HOUQSILS|I: 0000-0200

I WINO SPEilt TN 04JOTS

OIrECTluN I 1- 4-6 7-iC 11-16 17-21 22-27 ZP-33 34-O 41-47 48-55 GE 56 T( TAL PEAN16 G.3;, ES I WIND

t. I .7 3.4 .8 •I 5.0 s.,5

!9.L .4 .'" , 2 1.6 7.5

IF. .' .7 1.6 s.4

I1.1 I .4 .7 .4 2.4 6.8

[ ." 3.6 1.7 S.i 5.8

r ,[ ,, 3.4 .6 2.3 5.2

.S, .7 1.1 .9 2.7 5. 3

S . .• r . ,e 13.9 6.6

sw R 3,c .4 2• 12.3 7.4

b.6 s, 7 .4 3.0 1.7 . 1 7.9 8.2

b , .5 2.s 3.r 1. c 1 7.8 7.8

IA I .6 2.2 ?.3 • 6b.' 7. 3

,,,j 1 . r 7,r I..3 6.2

*1 1. 1,£ C 1 3.0 6.8

...............................................................................................................................................vei~h~tr 9

ICIYLS I :), !.• 33.1 ., ,10.0 6.1

tOIAL rf.ubLq or OtSEPVAI 1N f: Q9u

L

__ __ .... N

ULUdAL CLIMAIOLOUY ?A!'jCH PLRCE;.TAGr FpEiUtr|,Cy OF OCCUpPFt,CE or SURFACE w1ND DIRECTION VERSUS WIND SIEE(uSAFETAC FPO- IOLHLY ORSFRVA7IONSAir wEfATIl[P SEPvICE/MAC

SItlIC. NUP13LP: 7,-,2d7 SI ATION NAME: NIAGARA FALLS IAP NY P 0PIOD OF RECOPD: 79-87MONTH: JUt, HOUpsfL;I: G300-0500 L

I NO SPEE7) IN KNO0TSoIlFECT]O'i I 3-T 4-0 7-10 11-lb 17-21 22-27 'P-33 34-b0 4 1-47 48-55 GE 56 TLTAL MEANIfl (,. SE S) It WIND

N,. 2. .1 . S. 5*9

"'NIE I . 1 I 1. ( 2.3 6.C

1F ° 1.2 1.I' - 2.7 6.8

t NE 1 .8 1. 1 4.3 6.2

L 2. 1 4.2 5.4

rr I .i 1. .. 71 2.4 5. 2

SE I, .4 1 3 3 5.8

s 1. 9 6 5.1

S 3 7. 1 5.0 .7 14.1 6.5

.. 4 4. '1.0 5.2 .* 10.9 6.5

SW I, 3. 2.7 2.4 100 7.2

.S0 W. 2. 7 2.2 2., •1 8.8 4. 3

I .4 2.4 3.i 2. 1 .1 .1 94.C e.6

I,.- 1.7 1.9 .. 4.7 7.2

I,.. .'4 2.r

2 3.2 7.q

N N "I I . C 1 .9 3.2 7. 1

1CALS I .' 2 . b .1.9 10.1 .2 1 Do . 0 6. 1

.............................................................................................................................

TOTAL NUMr fr OF OrSE4VAIIUNS: quo

F-

GLGkAL CLIVATCLOGY PhAraCH LR|LEI.TAGr

FPEQUE-iCY or OCCUPRENCE OF SUPFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO' OLWLY OHSrRVATION

,;

AIR WEATHER SERVICE/MAC

STATICN NUMPLP: 7Z2527 SIAIICN NAME: NIAGARA FALLS TAP NY PECIOD OF LCOPO: 76-87MONTH: jUtj HOURsILST): 0600-0800

I 6IND SPEED TNI KNOTSDC)rLC7IN 1- 4-6 7-ku 11-Ic 17-21 22-2" 2F-33 36-40 61-47 4e-55 IE 56 lIIAL MEANIDELRE!S I S WINU

..................................................................................................................................." 1.6 1.2 *' '3.1 7.1

.2 .6 .b .. 2.6 7.3

NE I .1 .4 , .6 2.8 8.2

f. r ., 1.6 1.6 1.1' 6.7 75

F ,9 2.2 1.6 .7 5.3 6.s

sE .1 1. 1.1 2.6 6.1

1.2 .6 1.7 5.7

S . I 6. 1 . 17.2 6.13

.4 , 4.4 4,, ,9 1c.? I,

53. .6 3. 6 5.9 ]. 7 11.7 7.8

.7 .6 3. 6.. 3. .1 13.8 .6

.SW • 3 3.2 4.0 2. 4 10.0 8.5

6 .4 1. 1 3. 2 3. .2 8.3 9.8

NO I . 2.6 1 . 6.2 8.9

4t,. 1 1 1 2.;. 1 . .1 5.4 9.2

N. I .' 1.7 .6 .1 3.1 8.5

. .. .....................................................................................................................

VIAIA9LE

CALM 6.'// /i///////// ///i//i/i/ii// ii//i/ / iij///ij///i/i/, //////l/ iii/i/i/ 6.. j////

I ILS I 6 L.7 29" '41.1 17. '1 . 100.0 7.5

...................................................................................................................................

10 TAL NUMP!ER CF O SCRVATIONS : 9.0

~L

GLOjiAL CLIMATOLOY ShANCH PERCLIAGE FRLIUENCY OF OCCURRFNCE Of SURFACE WIND DIREC7ION VERSUS WIND SFEEDUSAFETAC FROM IULRLY OBSERVATIONSAIR wFATHER SR8ICE/FIAC

STATION NUMBER: 735287 SIAl ION NAME: NIAGARA FALLS ZAF %Y pERIOD OF RECORD: 78-87MONTH: JU N HOURS(LST): 09GO-IIU0

...................................................................................................................................I wIND SPEEn IN KNOTS

DIEOCIION t 1-3 4-6 7-IC 11-It 17-21 22-,? 72-33 34-40 41-47 48-55 GE 56 TCYAL MEANI I O E WIND

...................................................................................................................................

2 1. 6 :?.u . 7.q

NNE I . 1.9 .4 3.2 e.3

N' ,E1 .1 1.F .7 2.9 8. :

LNE I . 1r 3.2 1.2c S.4 8.8

L ,1 1.0 2.7 .6 4.6 8.1

ISE .1 .R .1 .1 1.2 6.0

S. I 1.3 6.C

SM . ..7 1.3 6.8

I .2 1.! 3.9 ,7 .1 6.2 8.2

5SW 2 . 2.r 3.7 2. p .3 8.9 9.6

SI. .6 2. c 7.9 9.1 .7 21.1 IC.2

551 , 2. 7 & .2 4. 7 .7 12.3 iO.c

I .2" 2.4 3. 7 .2 7.4 10.6

rW I1.1 2.3 3.1 .2 .1 6.9 10.6

N, .1 1.2 4.2 7. .2 e.7 9.m

I w l P l.p .7 3.!* 8.7

VTRIA7LF I

CALM ,,j j/////i////#///Ii///I/// d//# ///I// //III//d//// d/I t//// /////I/itit 1.1 li/#i#1

TOTALS I 2,2 2, .I 43.7 5.. 2.4 , JO.0 9.3

TIAIL NIMPF OF O'SENVAlIONS: 903

~L

...... r -l - -

C.,07AL LlI0ilOtOb6Y 6CA:CH PtQCEr.TAGE FREUFNCy OF OCCUPRENe.E OF SURFACE WINO DIRECTION VERSUS WIND SFEEDLSAE1AC FRO- FOLRLY OBSERVATIONSAl f A THER Sf.PVICE/loAC

STATION NU-L , 7.52b7 STATION NAME: NIAGARlA FALLS TA N1 PEDIOD or RECORD: 7R-87

MONTH: JUN HOURS(LST): 1200-1400

• I wINDl SPEEII IN KNOT.S

UIPILCII04 1 13 1 -C 7-10 li-ic 17-21 Z 2 -,, 7 2-33 34-4D 41-47 48-55 GE 56 TOTAL MEANIbl DE * E S I I % WIND

N 5.. 4 S.3 8.5

I.Nl .4 1 .6 .6 2.7 8.4

NuL .4 I.E 1.4 .13. 7 9.8

fNr . I.E 3. 4 .1 3*9 9*9

E1. 1.6 1.1 3.9 8.7

rSE ., .8 .8 7.9

I r.4 .4 .9 6.9

ts I .1 .7' .4 •1 .9 7.8

S I • 1.2 3.0 . ., 5.2 8,9

k-S% 4 . .9 3. .6 9.4 0.6

S.0 I . 2. 5 1.8 leC. A .? .1 20.0 11.6

I .6 61 .4 1 . 3 12. 3 12.0

I I 1." 2.6 1.9 .4 6.3 9.9

k .NO 1 .? . 4.1 .3 .1 8.9 io.,

N m . I 2 3. 3. u. 9 .• 10.1

'1,. to. .9 3.9 1., 5.9 8.9

CALM ot/ / ot/ / or / /,o / .o,, or1 0. /$/1///

TOTALS I 1,s 1'.4 41.1 37. 4.6 ..1 100.0 10.2

.................................................................................................. ...............................................

7018L lLIMEF OF O0 0FRVAT1OIS: L

F

GLtJAI CLIMAIOLOUY PRANCH PERC N AGE FPELUNCY OF OCCURREN E OF SURFACE WINO DIRECTION VERSUS 6IND SI'(Ei

USAFETAC FrO0 6I1RL OPSrRVATIONS

AIR WEATHER SERVICE/toAC

STATIC NUMPER: 725767 STATION NAME: NTAGRh FALLS ZaP Ny PLPIOD OF RECORD: 7R-87

MONTH: JUq HOURSLST): 1500-1700

................................................................................................................................................

I I1ND sPLIE IN KNOTS

CIPECTIoN I 1-3 4-6 7-1i 11-16 17-21 22-27 21-33 34-40 41-47 4A-55 GE 56 TIIAL MEANI' b" E S) I I WIND

.................................................................................................................................

NNE 2..1 .7 22 , 3.6 8.3

hE I 1 c 2.6 1. .7 2 *.4 9.9

[ E 1 cF 1.4 1. 3.9 9.7

7 . 7 1 . 9 2.8 8.8

[SE .:.4 1 1.2 6.6

sr .7 6.2

E SEf. .1 .1 ,7 5 . 5

S .± 1.4 2.1 1. 3 .1 5.7 6.9

SS .1 1.2 3.r 3.2 7.6 IO.C

516 1 . 1.4 8.9 12.'4 1.0 24 .1) 11.1

ISA ,7 3.' 6. 2 1. .. r 11.7 12. 3

I, 1 .! 1.2 2. - .3 .3 4.7 I .7

NS .f 1.9 4. C .7 7.1 12.0

Nt 1f' 2.7 .. 3 .7 q.7 11.'.

rNE I 1 1 c 2.7 1. ., .1 9.5

................................................................................................................................................V ,IABLE I

TOIAL % l.'s a. S.7 4 1.1 4.4 .b .1 100.0 lo.'

[1AL NtMPLQ CF O'SFRVATIONS: 1;30

_i L

S --

F--

GLOdAL rLIPATCL0tY PIANCH PLPCENTAC( FELUEN:Y OF OCcU'RnNC[ OF SURFACE WIND DIRECTION VERSUS WINO STEEDUSAFETAC FROM FOLRL OPSERVATIONSAl WEATHER SERVICE/MAC

STAIIC1. NUM1LE: 7:52b7 STAIION NAME: NIAGARA FALLS TAP 5 y PEQIOJ or P1OPO: 7P-87MnNTH: JUN HOUq5 ILSTI: 1800-2000

wi iDN 5PE~n fN KNOTS

UIvEClut4 I 1- 4-6 7-1U 11-It 17-21 22-27 2P-33 34-4C 41-47 48-55 GE 56 T(TAL MEANIODr(,bESI I % WIND

f, 1.j 2.4 4.2 7.1

Td. .1 1.' 2.1 , ',3 7.1

ur Q .:j 1 .4 .7 .2 5.' 1 .8

FE . 2. 1 3.6 . 7.0 7.3

L o. 1.2 3.C 1. 5.6 8.c

I SE, 7 .1 .1 5.6

.1 ; .6 1.3 6.4

'ST r1 4 .4 1.0 5.8

S .I 2 24 3.3 1 . 7.0 7.7

3k •. 2. 1 6.r I .c 9.5 8. 1

W I .u 3p 11.2 5.9 21.5 9. 1

WSW .4 1 .4 4.0 I .1 9.2 9.5

1.' I.' 1. .2 .1 4.6 10.2

I1, .1 1.0 2.0 3.3 .4 .1 7.0 11.3

N I 1 1.c 2., 1. .4 ,1 6.7 9.5

'N. 1. 1.7 . .1 2.7 10.C

................................................................................................................................................VARIARLE I-

* CALM Z j////I//i//i/I/ /i///////I////j//I////////// .1 /t//M

TOTALS I 2.1 24. 4 46.4 21.( 1.6 ,! 10O.0 8.5

................................................................................................................................................

TOTAL 0U8PL CF O SERVAIIONS: A98

~L

r

EL36AL CL1IPIOLOGY ERAiCH PERCENTAGE FREC ENCY OF OLCU('RPNe.E OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAF. AC Ff'O'" 'OLRLY ORSFRVATIONSAlP WrATHCR SERVIC[/MAC

STATICN NUMi9E): 7'5267 STAIION NAME: NAARP FALLS TAP NY PERIOD OF RECOPO: 3q-87

MONTH: JUN

HOUpsILSIS : 2100-2300

I No srtcnO IN KN OTS

blPE (, N tI-3 4-6. I-0 11-16 17-21 271-27 2P-33 34-40 41-47 4e-55 G1E 56 1(1AL MEAN

IDFoE.) % WIND

................................................................................................................................... *3 j.s 1.7 5.5 5.8

F:.L 1.3 . 2.2 5.6

I 1.2 1.1 .. 3.2 7.4

F . 1. 1.0 .7 4.2 6.8

A. I .4 . j.Y .3 5.8 6.1

SE 5 1 I .7 1 2 , 6.1

SEA I : I ~ . 1 2. 3 5.8

I4 .1 1 .6 1.1 . 3.0 6.5

5 -*~ 57 4.0 .4 11.8A 6 .4

S , i . " 3.6 .9. 8.6 6.8

S.. 1. 5.1r 6.f I.3 1 18.7 1.5

w .7 2. ,- 3.1 1.? 7.2 7.7

I,.4 2. 2.2 .; .1 6.0 7.5

N W; .1 1.2 *1 6.5 8.4

rb I • 2 .3 . 7 4.5 a . 3

1-116 .2 1.2 .6 ,2 2.5 6.6

V, A ' 11A 1 L r

I01AL I 6.r 8 36.1 ,.;O. 6.4

101AL NUMPETI OF OPSfRJAII tIS: .P7

LL L3iAL CLIPOATCLOGY P9ANCH PLPCENIAGL r;[EUENCY GF OCCUrRsNrt ,F SURFACE W11JU DIRECT ION VERSUS WIND SPEEDUSAFETAC FROM F'ONLYL ORSFRVAIOONS

AIR AEAlHER SERVICE/PC

STAIICN NLPI91P: 77526 STATION |AME : NIAGARt ALLS ZAP F1¥ PERIOD or RLCORD: 1F-87 tMONTH: JU

N HOURS(LS7)* ALL

I WIND SPEED TN 840T5UIPECI1ON I 1-3 4-6 7-10 11-16 17-21 .2-P1 2P-33 34-4C 41-41 48-55 GE 56 T(IAL MEAN

If.7 9E E I I IND

.................................................................................................................................................. I .. 2 2 . .0 5.0 I.C

NNE 1 .9 1.5 .3 2.8 7. 4

N I .1 .9 1 .7 .7 .1 3.4 a8.4

FNE .4 1.4 1.9 .9 .0 4.5 7.6

E I .4 2.EC l.A e6 4.7 7 . C

St5[ .S .1 . .1 1.7 5.9

SE ,. .p S5 .1 I. 5.9

I .' .p .6 .1 1.6 6.1

S I .6 3.7 4.1 .P .1 9.2 7z

I$6 .4 2.9 4.6 1.7 .1 9.7 8.2

S. ° 3.1 b.7 6.c .4 ,2 17.2 9.5

6WW .4 2.c 3.t 3.E .4 .1 .o 9.9 9.8

I . t., 2.5 2.2 .2 .1 6.8 9.5

Nb 14 I * 2.4 2.4 2. 4 .2 .0 6.?7 9.8

N. 1 1.1 2.9 2.c .2 ,1 6.3 9.6

tV2 . 1.9 .6 .2 3.6 8.4

CARLt' m ;/i///jj//iii//iIii/i/ /I / I////ii//l/i/iiIi/i 5. li/

IDIALS 4,7 Z6 7 3 ,i 22. 1 1 . ,q 1O00. a. I.

................ ..........................................

70)1 NUM!!ER OF O SERVA32OT.S: 1195

JL

t..6LOAL LIFPATCLOGY RRANCH PF(PC[I.7tAGE FRE UFKCY OF OCCURRENCE OF SUPFACE WIND DIRECTION VERSUS WIND SfEEOUSAFEIAC FROUM OLkLV OhSE66*11ONCAIR WEATHER SERVICE/MAC

STA1ION NUMLP: 7'5287 %TAXIN N NA4E NIAGA64 FALLS IAP t:Y PL1O0 OF RE.COPU 77-86

MONIH: JUL HOURS(LSTI: 0000-0200

WjIND SPEED 163 KNOTSuIr"CI](,N I-Y 4 -; 7-IC i 1-16 17-21 27-27 2 -3 3 34-40 41-41 4?-55 io 56 TuTAL MEAN10 furES) I t WIND

. . .. ... 1.6 ,.. 7.3 5.6

N. I .7 1.0 .6 1.8 5.6

KE .4 . 1.2 4. 7

E L S 1. .4 . 2.8 5.5

L, I 1. .1 .5 5 .7

I . r .l 3 1.6 4.7

.S4 . 1.4 .8 .1 2.7 5'8

S i.4 7.o 4.7 .6 .1 14.7 6.3

rs I 3 5- 4.1 1.1 .2 11.6 7.0

I i.' 6.1 7.4 1. 2 15.9 6.9

sw .2 2. 2 3.3 t. .1 6.6 7.6

I ,c 2. 2.2 '? 6.0 7.0

,N,.1 1.6 7 , 5.3 7. 3

.2 1.1 1.9 4.0 8.1

I.r~ T I . 2 .6, •- 2.4 6.C

VlfNIAILE I

01ALS I . 1 4,2. 4 62.1 . 1 ' 100.0 5.9

TOTAL FUHPLQ OF O SFVAI1 NS: 9 32

L

GLJ:-AL CLIPAIOLOGT ERANCH PERCENTAGE FRLCUENCY OF OCCURRFNCE OF SUQFACE WIND DIRECTION VERSUS WIND SPEEDUSAFEIAC FRO4Q FOLRL OBSERVATIONSAIR rATlif4 SERIiFIMAC

STATION NUMHER: 725287 STATION NAME: NIAGARA FALLS TAr NY PEoIOD OF RLCORD: 77-A6

MONTH: JUL HOURsILSTI: 0300-0500

..............................................................................................................................................I IND SPEED TN KNOTS

DIrECTIO4 I 1-3 4-6 7-10 Il-lb 17-21 22-27 2P-33 34-4O 41-47 48-55 GE 56 TETAL ME ANIDE G G'S I t WING

..............................................................................................................................................it I 1.3 4.4 S*.

NE I .1 .6 1.4 6.7

NE .1 j.1 .5 1.9 5.6

tF N .6 2.4 .3 .4 3.8 S.5

1 1,2 2.C I c 2 5.1 S.9

2I So .2 2.8 .62

1.8 4 .5 1.21ts 1.4 .4 7 2.3 6.1

S 1.1 6- 5.2 13.2 6.4

4SS ,2 .: 4.2 I. f 11.2 7.c

51 .4 S.c 5 . '2. .2 14.2 3.6

SA I .5 3.r 2,p .4 6.8 6. 7

S I,' 4.2 1,€ ,1 £ .1 6.C

N.i , .1 . * 1* 4.2 6.5

1.4 1.6 .P ." 2.6 6.5

N I,.1 I.q 1.5 .1 3.7 6. 7

(ALM / ////////////////////////////////// //// /// 12.7 /l/////

TOTALS I 7.5 q4 , 2b.5 6. 100.0 5.6

TOTAL N LLR Ct OSPVA71NS: q!0

U, LIAL CLIPATOL0(V IPAI.CH PERCENTIAGE FRLCUENCY OF OCCUTRENt.E OF SURFACE WIND DIRFCION VERSUS WINID StEED

uSAFLTACFROM POU'0LY OBSIRVATIONS

AIR WFATHER SRVICM/MAC

STATION NUP-i," 7 I87 STAT ICN NAML: tfiAGARA FALLS IAP t.1 PEPIOD OF RECORs: 1- 6 - 1<

STAIONNUMPVAIoTH: JUL 4OUpSIEST): L16CO-CSO0

....... .................................................................. ..........................................................

SW I N D S P E E D I N K N O T S S 5 -p 6 T T E A

UIECIION I 1-3 -6 7-1Z 1 1lb 17-21 22-27 2P-33 34-40 41-"? 4 9-55 6 TrIAL PIN

tul oz.ESI I ~WN... .. .. .. .............................................................. ................................ .... ... ... ..... .. .. .. . 6 .2

N . 2 .r 1.2 .2

'.NE I 2. 1.9 .1 2'.{

7.3j,

r, I .1 ,q ).( .2 1.7 7.5

I + * F .6 .1 |2.2 5.7

4 .7 5 .8

f SE . 1.2 .2 2.3 1.0

S. 1.' .3 01 1.8 5.8

:Sr .3 1.8 "! .2 2.5 5.7

SS .T 2.1 4.9 1 .12.0 6.9

S. I . 4 .5 7.4 3.4 .1 16.1 8.2

'.SW ..9 3. 3 4.r 2.. 10.3 B.C

S,'4 2.6 3.1 1.2 7.3 7.7

.N. l2 2.2 2.9 ,6 9.3 7.5

Nh 1 2.2 I+ 4.5 8.6

3K . I+. 1.2 .' 3.0 7.7

it P KiT LET I

f I 6OALS 3Z 6 .200.0 6.9

TOTAL NUM9E'l OF OSERVITION-: 93

JJ L

F

GLOL CLIMAIOLQGY PRACN1 OZRCPE/,AGE FPEOLENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAF[TAC FR0'4 POtRL OS RVAIONSAIR WhtAIHER SERVICE/IAC

STA1ION NUMPER: 7-5,67 STATION NAME: NIAGARA FALLS lA f:y PZ10 OF ALCOPD: 77-R6

MONTH: JUL HOURsILSTI: 09UJ-1100

. I W1,,l .PEED IN KNO7SDIRECII I 1-- 4-6 7-10 I1-lb 17-21 22-27 2P-33 34-40 41-47 qe-55 GE 56 TTIL MEAN'OE GrL f S1 % W IND

..................................................................................................................... ,. ,...... .............,,...............,...,.. , .. ,,., , , , ,, . ,,•., ., ,, , ,, ° , , . e .,,, ,,,

P., • .., 2. ,9 5.5 7.6

'INE I .5 .9 2. s .7

Nt I 5 .4 1.2 .6 Z.R 7.6

PIE .9 .9 , 1.6 6.7

L ., . I 1. .4 1.7 8.4

fS st . .4 1.3 .4 2.3 F1.,

SE .! .6 1.0 r 1.9 7.2

-2.2 1,1 1.! 1 2.7 6.4

S . p 3.A I.Z 6.8 7.9

.4 1., 5.1 2.9 10.3 8.9

sW . 3. 1 8.5 11. .4 22 .5 104

.S. I 1 1 71 4. F .2 10. 3 10.1

w 2 1.' 4.1 1.7 .2 7.5 9.3

6N, 2.2 2.,,

1. .4 6.6 8.8

I .1 2.4 4.2 1 . F.1 8.3

.. 1. 2.2 1 . 4.8 9.4

.....................................................................................................................................VANIASkL I

InL8tS ., 21.r. 43.7 2.4 1., 100.0 8.9

IOIAL %UMFfR OF OPSE Vl A1flNS: 0930

L

i ,

b LUtAL CLIPAOLOGY 9PAjjCH PEPCLI.TAG( FRL.LENCY OF OC(CLPRNX1 OF SUPFACE W1.O UIRECIION VFRSUS WIND SFEE

USAFEIAC 6r9o PO0uLY OPFrVATO

AIR UFATHLP SFPVlrCC/AC

STA8C11. NU4PIl: 752b7 5 1AT]CN NAPE: NIA6ARA FALLS 1AP ' *. PEPIOD OF PECOPO: 77-86MONTH: JUL HOUpS(Ls11: 12U;O-1400

...........................................................................................................................................IND PEI TN KNOTS

OL i[tIac I I-3 4-C 7-l' 11-16 17-21 27- 7 2P-33 34-4U 4-417 46-55 GE 56 T(TAL PAN* rr GrEE SI I WIND

S I 1.L 2.7 *L 4.6 8.0

PtN -1 .3 1.3 .3 2.0 9.2

I, I .1 .' 1.7 .1 :1.7 8.4

I. I .t . .0 .2 2.0 7.6

L .1 .. .T 3.7 7.!

srS I * j.r .4 . 1.8 9.1

5r

.6 .1 3.4 6.8

S L 1. .5 .1 .q 6.1

S I .i 1. 3 . A 6.2 7.9

51 1 1.5 7.1 12.5 1.4 .' 22.? 11.8

v,5 .1 .9 1 C.3 .I .1 12.2 11.5

I . 1. 2 2.5 1 . .2 5.5 9.7

41.6 1 . 2.q . 6.9 lc.c

1I 3.. 6.3 .4, .2 11.1 Q.9

N. I1. 4.6 1. .2 .3 9. 1

VARIAbLE I

TOrALS I 1 33.2 1 6.5 !4.7 210 * 100.0 9.9

1017AL htl~p[ OF OnSERVATIO : 3-rL

1G,,A CLI"P73TLOGv

BIRANCH PLPCCI.7AGE fPEQUEhCY OF OCLU'lRENCE OF SURFACE WIND DIRECTION VERSUS WINO SF EtOUSAFRTAC FROM POLNLY OBSERVATIONSAIR i.FAIHER SERVICE/MAC

51AIIC NUIAR: -752 87 STATICN NAML: N355,4A FALLS IAP I;Y PLnIOO OF PECORD: 77-96

MONTH: JUL HOURSILS71: 1S0-1700

1 6 81NO SP(Efl IN K(OTS

vIFECIIOPJ 1-7 4-6 7-1 I lt-L, 17-71 22-27 2F-33 34-4C 41-47 4E-55 GE 6 T(,TAL MEAN

( 0E ES I I IND

N. . 5.1 1.3 8.2 8.S

I.CIF.4 2 .5 .4 3.3 8.3

I .11 1.? ,8 2.4 9.c

h .5 .5 1.5 8.9

L .r .' .6 1.1 6.7

ION , 1 .4 1.2 9.9

SI .4 .3 .8 S.6

I ., .4 1.2 5.7

I .1 *' 1.' .9 .1 2.7 9.6

s .1 .5 3.2 3.2 . 7.7 1C.4

SW .1 .9 9.Q

12.C I. . 7 24.1 1 1 .4

S,51 , . 4.9 7.6 1.2 ,2 .1 15.1 11A

A I1.0 1,9 1.' .2 4.4 4.7

. I,. , ,n 1.4 7,7 .2 5.i I .S

I. . F. 4.P 3.. .2 4.9 .

,',. 1. 5.6 '.5 ,I 1-.'

55I. 3A9Lr

)

701515 12 I.4 45.11 17.4 1.7 .4. .1

... .................. ... .............. ....

1OyTAL NI-ML I 13 OF 5I 't VA IIONS: 73E)

-jml lll -

AD-All' 573E VORX E fo UWR

UNCLASSIFIED

IU 2=201-26

GLOFAL CLIPATOLOGV BRANCH PERCENTAGr FRECULFICY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED*USAFETAC FROW lOtLV OBSERVATIONS

AIR WEATHER SERVICEjNAC

STATION NUMBER: ?25287 STATION NAMHE: NIAGARA FALLS TAP WT PEPIOD OF RECORD: 77-86MONTH: JUL HOUBsILSTI: 1800-2000

.. . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . . . . . ..1. . . . . . . . . . .I WIND SPEED TN KNOTS

*DIPEC71ON 1-3 8-6 7-10 11-16 17-21 22-27 2@-33 34-40 41-87 88-55 GE 56 TETAL MEAN

'0

ER r58

1 % MIND

N I .1 .3 .2 .05.5 7.6

I .E 1.3 8 . 2.5 6.1

NC I .1 Zc 2.8 .1 .6 6.6

~N 6 1.1 1 .0 .3 3.8 6.1

E I . 1. 1.8 . 3.8 6o1

*E * SE I . .T .9 .22.0 7.0

ss a 8 .3. 6.4

SSE5 I 1 .P .3 1.2 6.1

s .2 3.0 3.S b1 .9 6.7

SIN I~ 1.6 6.2 .0 E 1 8. 6.

SM 3.8 13.5 6.0 C I .1 23.2 9.8

WSW .2 1 .6 7.2 8. 3 .2 13.S 9.7

I 3 1.6 1.3 .6 .1 . 7.

N .W I . .8 2o6 1.p 6.S e.5

NW .1 1. 2. 1.'7 .2 5.1 9.81

3N I .1 2.? 3.7 1.' 7.2 8.2

............................................................ .............. ................ .......... ......... ......... ..........* VARIASLE

* CALM //f/IiI /I /IJ/////I// 11ii/ I// jI///i/// l/ll.lli/llil//lli 1.5 jlI

TOTALS I 2-9 27.f 49.? 17.p .8 .1 100.0 8.2

..................................................... ................ ........... ......................... ......................

IIOTAL KUMMER CF OdR5ERVAIIO8ISt 330

A

GL OE4AL CLIMATOLOGY PRANCH PERCCNTAGE FREQUJENCY Of OCCURRtENCE OF SURFACE WIND DIRECTION VVRSUS WIND SICEOUSAFE TAC FROM ?VOLRLY OBSERVA71ONSAIR? wEATHER SERVICEf"AC

STATION NUMBER: 725287 STATI0N NAME: NIAGARA FALLS TAP NY MNH U ORESI 2020

..................................................................................................................I 11NO SPEED IN KNOTS

* IDIPECI1ON 1 -3 4-6 7-10 t1-16 17-21 22-27 ze-li 34-40 141-4? 48-55 GE 56 7618? MEANIOE6EVS I WINO

...........................................................................................................................%. 1 * 1.3 1.3 .2 3.7 G.c

ti NE I .2 I. . 1.7 5.7

*Nr l .r .3 .2 1.5 6.5

*r,. NE. Z.C .2 2.7 61.6

E I 2 .9 1.7 .2 5.s 5.0

st I1.6 5.8

SSE I 6 1.7 .4 2.6 6.8

S I 1.2 i.7 5.7 .'16.9 6.6

SSW .1 6.-6 5.9 .3 11.0 6.9

~W I .5 5.5 11.? 1. 7 18.9 7.5

WSW I .5 2.2 6.7 .631 7.

S1.6 1.7 .E3.9 7.5

WW .1 2.2 2.R .9 5.9 7.8

NJ I i .t 1.9 1.1 S.2 6.0

%hw I . 1.! 21.3 .66. 76

........................................................................................................................

TOTAL NU"RER Of OPSERAlIONS:2 930

y 0e

4,p

GLOBAL CLIVATOLOGY BRANCH PERCENTAGE FPE(.ULNCV OF OCCURRENCE OF SUPFACE WdIND DIRECTION VERSUS MIND SFEEOUSAFETAC FROP FPOVRLY OBSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 725287 STATION NAME: NIAGARA FALLS IAP NY PEPIOD Of RECOROt 7?-BbMONT,,: JUL HOURSALSyl. ALL

WIND SPEED IN KNOTSoirECTTO7 1- 9- 7-1 It- 17-2 22-27 26-3 39-40 4119 48-5 GE 56 TCTAL MAIDEGRErSI % WIND

.............................. ...... ..... ...... ..............................................................................

NINE I . *e 1.2 .2 2.3 7.4

NE I .2 .0 I.E .3 2.2 7.1

ENE ' . 1. .6 .12.S 6.0

.0.

'IE.2 1.? .6 .12. 8

5 .7 s9.2 9.1 .7 .0 9.7 *.9

SS I .2 2.9 S.1 1.0 .1 10.2 8.3

SW, I . 3.9 a.p 6.2 .9 . 19.7 9.4

SW 4 9 2 .F 3.9 .3 . .010.9 9.6

A I .4 2.c 2.3 1.1 .1 S.9 s.c

WN1 I .1 1.7 2.3 1.9 .1 5.7 v.S

MWU I 1.6 3.31 3.1 . 6.3 8.9

PNN I .1 1.5i 2.7 1.1 .0 0. .9

TOTALS I .9 29 . 90.7 19.1 1.1 .1 1' 00.0 7

....................................................................................................................................

TOTAL NIPMSLD OF OPSERVATIONS: 79910

bLONAL CLIPATDLOGY 96614CM PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND 0DIREC10ON VERSUS WI1ND SFEE0

USAFEiAC FROM IV0LRLY OBSERVATIONSAIR WEATHE4R SERVICE/NAC

STATION NUP"CR: 7252a7 SIATICh NAKES NIAGARA FALLS lAP NY PERIOD OF 611090: 77-86MONTH: AUG "OURS(LSTI: 0000-0200

DV'ECIONWIND SPEED IN KNOTS

DPC IO If -7 4-b ?-in 11-16 17-21 22-21 20-33 34-4D 41-47 *a855 GE 56 TCTAL MEAN

&E.2 .5 .8 .1:o~ :.3

NE ~ .6 3.6 1.7 3.21.

.E 1. .6 2.6 S.S

's Pir I .6 1 4 .6 2 .2 5.6

L 1. 5. 3.9 1. 50.1 6.9

Nst 3. .6 .3 6.8 .29. 5.6

6. .9 * . .1.2 ;3 6.6

hu.6 . 2.C65 . 5.5

6W1 .5 13 1.2 2.6 5?iq

thSW .4 3.5 6. .3 3.12.

...................................................... .1.. .....

CAL I.#/ I. Il il0.0 mil1/1/11.2/1/11/ il 4111

WICIL .7 42.2 2d.8 S.95 210.

..................................... ................................................................ .............................................

I61*1 RuSOIP OF09SSCOVATIONSS 930

_7711

GLOBAL CLIPAIOLOGY SRA.Ch PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SIECOUS AEr AC FROM I"0LRLV 013SERVATIONS( AIR WEATHER SERVICE/MAC

STATION NUPRER: 125287 STATION NAME. NIAGIARA FALLS IAP NY PERIOD OF RECORD: 77-6MONTH: AUG HOUOISILSTI: 03000OSOO

.....................................................................................................................................................I WIND SPEED IN ANOTS

0 IIECIOCN I 1-3 4-6 7-10 11-16 07-21 22-2? 28-33 34-110 41-14 i s6-IS GE S6 TOTAL MEANIOFGRE E SI I IN

J........................................................................... ................ ....... ........

rE JE5 3.9 69 . . .1E I .(. 3.9 .9 6.3 6.?

r SE I 6 * .8 .1 .1 3.7 6.6

04SE I 1.2 1.11 1.1 . 1 4.2 5.4

S I 3 . .c .5 1.6 5.5

S .I OA 4 .0 .3 12.0 S.9

s SW I .3 3.C 3.4 .4 ?.2 6.9

Sw .4 3.6 3.4 .9 6.1 6.?3: Au 3.e 3.2 *4 .3 6.6

NNW I 1 1.2 1.0 2.3 6.2

CARLE Is4 111

TOTALS I 13.4 ##3.1 26.5 6! .3 100.0 5.2

TOTAL NU)MtlE Of O"SERVATIONSt 930

7 1

GLOBAL CLIIPITOLOGY BRA~dCH PECETAGE FRECUENCY OF OCtURRENCE Of SURFACE WID DIRECTION VERSUS WIND SPEED

usAICTAC FROP I4OIVLY OBhSERVATIONS

AIR WEATHER SERVICEIPAC

ij 51111C NUPRER:. 725287 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECoO: 77-86

.1 IhIN SPED N KOTSMONTH: AUG MOURS(LSTI; 0600-0600

DIRECTION I 1-3 4-6 7-10 11-16 17-21 22-2 ? 2@-33 38-80 41-47 848-55 GE 56 TCTAL MEAN-*4 DESREESI % W IND

$1 I . 2.c 1.3 .2 4.3 6.C

NNE I 1 1.4 1.2 *!3.2 6.6

pir -3 . 7 .8 7.3

f M . 1.5 1:2 .1 3.7 5.6

E 1.3 3.! 1.2 .2 5.6

rE.6 2.8 .5 3.5 8i. 9

SE b 2.c .3 3.0 8.7

1SSE I .9 1.9 .6 3.84 8.6

S .9 8.61 6.5 1.! 13.8 7.1

SSW4 .9 3.1 81.5 1.2 9.6 7.4

S4 .5 2.2 8.7 1.0 6.8 7.7

.6 3.9 3.7 8~ . .3

..............................................................................................................................................VARIABLEI

TOTALS 8*Y 35.8 38.7 9.1 .3 100.0 6.2

..............................................................................................................................................

rOIAL NUMOER Of SPSERVAIIOFISS 91c

X 1

GLOBAL CLIPATOLOGY BRANCH PERCENTAGE FRECUENCY OF OCCUPRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEED

AIR 6EATHER SCRVIEIAC

[ ,STATICU NUPRED: 725287 STATION NAME: NIAbARA FALLS TAP NY PEDIOD OF RECORD: 77-86

PJEMONTH: AUG HOURSILSTI: 09CO-1100

1DEGRES1 1M IND

N I .' Z.r 2.0 .9 S. 7.3

4 I .M1. 1.8 .8 3.S 7.2

j PC .2 .6 1.6 .5 3.0 B.0

INE I .6 1.1 2.3 .6 8.6 7.5

E .3 .9 2.2 .5 3.9 7.6

t7SC 1.2 1.5 2.7 6.9

SE ~ . 1.5 3.0 6.1

ssr I ~ 1.1 1.0 3.0 5.1

S el. 2.4 5.8 1.2 9.8 7.9

SSW I .3 1.3 8.9 3.8 10.0 9.8

SIP .3 1.8 7.C 5. 7 18.8 9.9

WSW I .2 1. 3.5 8.1 9.7 9.6

W -.3 I.0 3.2 2.9 .1 8.3 9.2

WNW .1 1.2 1.? 2.7 5.7 9.8

Nu .2 1.5 3.1 1.9 6.6 9.c

N4NW I . .6 2.8 . .1 8.13 6.7

...............................................................................................................................................VARIABLE

CALM I,/,I/II////,///I,/ /i//I//J/iiI/ ii/i/IIi /// / 2.0 Mill

TOTALS 4 .5 22.4 45.2 25.7 .2 100.0 6.5

TOTAL NUMBER Of OPSERVATIONS: 030

kAL4'3

GLOfAL CLIIAOLOGY eRANCH PERCENTAGE FRLQUENCY OF OCCURRENCE OF SURFACE WIO DIRECTION VERSUS WINO SPEEDUSFEI AC FRO" VOtRLV OBSrRvATiONSAXR drA IER SERVIrE/MAC

STATION NUMRLP: 725287 STAVION NAME: NIAGARA FALLS ]AP NV2 PERIOD OF RECORD: 77-86

MONTH: AUG HOURSILSTI: 1200-100

IIN0 SPEED IN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 2F-33 34-80 821-87 48-SS GE 56 T(TAL MEANIoE GR rs I % WINO

................. ................. ................. ................. ................. ................. ....... ;: ......

A,1 2.0 3.0 1.2 6.6 78

N.E ,1 HE 2.0 1.8 8.0 9,5

hE I 1.2 2.2 1.C 8.3 8.5

'4 tNE fi . *A 1.7 .1 2.9 6.8

C 1.5 2.3 .4 8.0 7.3

ESE , .- ,9 1.2 7.9

SE .9 . 1.3 6.S

SSE 5 .8 .8 1.7 S.4SS .v 2.2 2.C 1.2 5.7 7.S

SSW 1.2 81.6 3. .2 9.8 9.7

sit , . 1.2 5.9 10.0 .6 18.9 11.8WSW .3 1.! %.S .s .. 12.3 10.8

.1 1.2 2.! 2.6 .1 6.0 9.9

I'N I . 1.1 2.0 2.6 . 6.5 10.3

NW 1.2 8.1 2.8 8.1 9.5

RN I . 1.0 3.8 1.1 .1 6.8 8.2

.......................................................................................................................................VARIABLE I

TIALS I 2,8 la.p 81.9 33.R 2.? 100.0 9.8

.......................................................................................................................................

TOIAL 14UNPER Of OPSERVAIIONS: 930

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE rRLCLJCNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUS AFEr AC FRO" POULY OBSERVAIIO14SAIR WEATHER SR~VICE/MAC

]lk

STATION NUMBER: 125287 STATION NAME.I NIAG.ARA FALLS TAP NY PERIOD OF RECOPD: 77-86MONTH: AUG HOUpSILSI): I500-1700

WIND SPEED tN K14OTSDIPLCIION 1-3 11-6 7-1c 11-16 17-21 22-27 28-33 35-40 41-107 5855s GE 56 Tr TAL MEANIDEGREES1 2 W IND

'1

I 1 1.6 5.6 1.oC 8.3 Go2

PINE I .8 3.7 1.3 6.6 8.1

NC I *0 .2 1.1 5.8 9.C

r:.r I .1 .5 2.3 1.1 5.0 9.)

L 2.6 1.5 .1 2.3 7.17

sr .3 .3 .1 .8 7.3

SSE I . .3 . 1 .8 6.9

I I1.2 2.2 1 . 51.3 s.o

S S -1 1.2 3.r" 3. 1 .3 8.3 10.3

I

SW 2.3 8.7 1. .c 1.2 22.3 10.8

WSW I .1 .4 5.N 5.5 .8 11.9 11.2

g I . -p9 . 2.C .2 5.3 9.9

v Nd A. 1.9 1.A .2 5.7 10.33.8 1. 7 .2

NNW 7 32872.2 1. .1 40 8 .97

.............. ............. ..........................................................................................VANJAIILE

CALM 6I 1 //11

IOVALS I , 16.1 7.7 31.! 3.0 100.0 9.6

......................................... o..............................................................................

T .ME OF - 9 f

GLOBAL CLIMATOLOGY PRArICH PERCENTAGE FREvUEICY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MIND SFEEDUSAFETAC FROM POLRLY OBSERVATIONSAIR 'ifATHEO SERVICE/MAC

STATION NUMPER: 7zS287 STAIION NAME: NIAI.ARA FALLS XAP NY PEPIOD OF PECRO: 77-86 -.MONTH: AUG HOURS(LSTI: 1900-2000

............................................................................................................................I hi1ND SPEED IN KNOTS

DIRECTION 1 1-3 4-6 7-10 11-16 17-21 22-21 2 A-33 34-%0 1-417 68-55 GE 56 TOTAL MEANIDEGPEESJ M IND

N .2 .I1. .5 .4 6.5

NNE " . 1.2 3.0 6.0

NE .6 3.2 2.8 . ..3 7.6 7.6

ENIE 1,3 3.9 2. .6 8.2 6.1

E ,3 2.9 2.9 .s 6.7 6.8

ESE .1 1.1 .S 1.7 5.6

S.L .6 B.1 1.0 5.7

SSE I .6 .3 1.0 6.C

S .3 5.,2 .1 .P 10.3 6.8

SW- .1 1.1 6.7 .6 7.? 7.7

SS. IC 12.9 4. 9 .2 21.1 9.o

kS1w .6 1.6 3.3 3.r .2 0.6 9.2

d .3 3*- 1.9 .6 3.7 7.3

UNW .1 1.C 1.8 i.C .2 6.1 9.0

NW .2 1.7 1.7 I.c .2 6.3 6.9

• 1W ..• 2.3 . 3.7 8.2

.................................................................................................................................

CALM | // / / / II///iI/I/iiI/Ii 2.6 II/Ill

TOTALS | .5 '2.6 66.7 36.6 1.2 100.0 7.S

.............................................................................................................................................

TOTAL NUMnI OF OPSERVATIONiS: 930

.... (

. :L

GLOBjAL CLIVATOLOGY RACIIH PERCENTAGE FRLQUEIJCY OF OCCURREN.E OF SURFACE WIND UIRECION VERSUS WINo SFEEOUSAFEIAC FRO" FO1RLY OM6EROAIIONSAIR -FATHEr SERVICEIMAC

STATION NUMBER: 725287 STATION NAME: NIAGARA FALLS ZAP NiY PEDIOD OF RECORD: 71-86

MONTH: AUG HOURSILSI): 2100-2300

I WIND SPEED IN KNOTS

EIPCIoM I 1-3 4-6 7-lU 11-1 17-21 22-27 2P-33 34-40 1-47 48-55 GE 56 TETAL MEAN-EGrGPEES? 2 WINO

•, 3°

1,.5 . 6.6 5.9

"N.}'N[ E: .2 .5 eS .e1. 7,2

Kr .2 ., 9 .8 .2 2,0 6,6

E NF I 2.7 • .9 .6

E 3 - ?2 8.2 6.0

FS I" .e r . 27 6.4

sr .4 a .3 1.5 4.6

S . 8.0 ' .2 11.9 6.5

SS a. 3.4 8.3 .4 8.7 6.9

SW .2 e .7 7.c I. 13.2 7.S

WS • 3 2.8 R .8 1,r s.5 ?.8

4 I ,.8 2p. 2.e . 6.5 6.6

. FT L ~N1.7 3,8 . ,1 7.6

................................................................................................................................................

, MVARTARIL!

''!CALM | /j // // / j// / 8.8l 01/1//1

?D IALS 0 , .7. %C7 35, We, .4 100.0 6.1

TOTAL NUMSER OF OrSERVATIONS: 93C

.. . . . ..(. . .

GLOE.AL CLIMATOL06Y PRArICIO PERCENTAGE F9ECUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROM PO(RLY OBSERVATIONSAIR 4FATHER SERVICE/MAC

STAICN NUv-3LV: 72S287 STATICN NAME: NIAGARA FALLS IAP NY PEPIOD OF RLCORO: 77-86

MONTK: AUG HOURSILSII: ALL............................................................................................................................

I IND SPECO IN KNOTSr C dRCIION I :- 1 6-6 7-10 11-16 17-21 22-27 2P-33 IN-NC NI-Ni NR-ss GE 56 TTAL MEAN

I UJfiRLESI | WIND

.............................................................................................................................. .4 2.6 2.. .6 5.8 6.8

NNE .2 1.1 1.5 . n 3.2 7.6

NL .' 1.' 1.9 .. .0 4.0 7.5

FNE I , 2.C I. .4 4.8 6.1

I *, 2.( 1.9 .3 S.s 6.1

!SE ,. 1.6 .9 | Z.8 5.9

Sr I ,U 1.1 .6 ,1' 2.2 5.5

IS I .4 1.1 .6 .c 2.1 5.3

S .6 6. 3.9 ,N .0 9.7 6.9

.SS. 2.5 4.c 1.7 .1 8.5 8.2

SW • | 2.p 6.8 4.3 .3 1N.5 9.3

w Si. I 3 7.2 N. 2.7 ,3 9.6 9.1

Si ,. 2.6 2.6 1. ,1 7.1 7.7

6 NW .2 1,. 1.7 1.6 .1 .8 8.9

. .2 1. 2.3 1.2 1 S 8.6

TOTALS .1 NV , 1 It. S 1 100.0 7.2

............................................................................................................................

TOMt huIPI4tO Of 0DSERVATIONS: 7440e e ~ e * e *e e * o * e e e ~ ~ ~ e e* * e ee * o e oe e e e~o e ee * e ~~~'7e e~~~~

GLOLAL CLIMATOLOGY BRANCH PERCLNTAGE FPEQUENCY UF OCCURREhCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FROP OLNLY OBSERVATIONS

AIR WEA7HrP SERVICE/MAC

STATION NUMQEF. 725287 STATION NAME. NIAGARA FALLS IAP NY PEPIOU OF RECORD: 77-86MONTH: SEP HOURsILSTI: 0000-0200

I N0 TPEEO TN KNOTS

UIPECTIUN | 1-3 V-6 7-IC 11-16 17-21 22-27 2P-33 34-V0 V1-17 V8-SS GE 56 TCTAL MEANfOE6IErSI I % WIND

.........................................................................................................................................................N . 2.; 2.C .1 5.3 6.3

*jNr .6 1.2 .9 2.7 5.5

N| I .9 1., 1.C .Z 3.V 5.7

r NE 1.: 1.6 2.c .V 5.0 6.6

E 1.7 3.2 3.0 .6 0.7 6.2

ESE . 3.! .V V.1 5.1

SE .2 2.2 .6 3.0 5.3

SSE .3 1.2 .7 • 2.3 6.0

S q.' S.! 3.1 2.3 .1 11.7 7.3

I S.2 2.Q 2.9 i.e 7.6 8.c

SW .8 1.9 V.6 1.s .2 9.2 8.3

WSW .2 1. -. " 1.1 6.2 8.1

I .V S. 3.4 1.C 8.7 7.C

I ;w .6 1.V 1.9 .V V.3 7.2

t 1.9 1.2 . 1 .1 .1 3.V 4.6

ta;? .V 1.1 .8 .9 .1 2.9 7.2

................................................................................................................. ..........................VCRIABLE I

CALM 11-2 ///i / ///i/I/I/ /i//i/ ///i/I//t////i //,/I // 11.2 il1111

tOTALS I 36 , '.( 31.7 11.1 .f .1 100.0 6.2

TOTAL NIMIMEP OF O-SERVATIONS: 900

A. . . . ". .

GLOBAL CLIPATCLOGY 3RAfjCH PERCENTAGE FRLUEF.NCY OF OCCURRENCE OF SURFPCE WIND DIRECTION VERSUS WIND SPEEDUSAFEIAC FROM OLWLY OPSERVATIONSAIR WEATHER SlRVICElHAC

STATION NUMH8R: 725287 STATION NAME: NIAGARA FALLS TAP N;Y PERIOD OF RLCORD: 77-86

MONTH: SEP NOURSILSTI: 0300-0500

: WjIND SPEED TN KNOTSDIRECTION I 1-3 4-6 7-10 11-16 17-21 22-27 2A-33 38-40 1-47 48-55 GE Sb TCTAL HEANI DE GRES I WIND... .. ... .. .. ... .. ... .. .. ... .. ... .. .. ... .. ... .. .. ... .. ..

N 3.8 6.S

NNE .2 1.! .7 .1 2.3 5.9

NE I .a 1.8 1.3 3.9 6.4

.N 1.0 1 . q 1.2 .4 8.8 6.3

E ,1 7. 2.2 .6 7.7 6.1ES" .7 3.8 1.3 5.7 5.6

SE .4 1. .6 2.3 S.1

SSE I .7 1.8 .6 .1 2.8 S-2

S I 1.! 4.8 8.6 1.e 11.8 7.3

SSW .1 2.7 3.6 1.1 8.0 7.3

SW , . 2 z.4 2.7 1.6 .2 7.2 8. 2

vSw .6 2.8 3.6 1.6 .2 8.3 .?

"Y 2.6 8.6 . 8.2 7.7

kNW • .2 1.7 1.7 .7 8.2 7.5

NW I .2 1.' 1.1 .2 .3 3.1 8.1

vPNW I .3 * ~1.1 .7 2.9 7.5

......................................................................................................................VANJABEC* I

CAL" | $ # J# / # / 13.3 //1///

TOTALS I 9.- 36.8 J2.0 I.3. .8 100.0 6.1

..........................................................................................................................

IOTAL NUNE'R OF OPSrRVAIIONS: 900

L --

*N

A6

GLOBAL CLIPATOLOGY L'RANCH PERCLNTAGE FREGIJENCV OF OCCURRENCE OF SURPFACE WINDo DIRtECTION VERSUS WIND STEEDuJsA'FLtAC FROM I'OURL't OBSERVATIONSAIR IiCAINER SERVICEIMAC

STATION NUMBER. 7Z228 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 77-86MONTH: SEP 14OURSILSTI: 0600-0800

.. . . . . . . . . . . . . . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . ............ ...... • •

flI WIND SPEED IN KNOTSDIPECTIoN 1 1-3 4-6 ?-IV~ 11-16 17-21 22-27 29-33 34-40 41-47 %8-S5 GE S6 TOTAL MEANIDEGREESI I % WIND

.. . . . . .. . .. . .. . .. . .. . . . . .. .. ...... .. ......... . .......

.3.9 7.2

NNE I .1 1.2 1.3 .4 3.9 ?.1

S RC F 1.2 1.3 . v 3.9 7..

SNE 1 . l.3 1.3 . 4.3 7.1

E I E .3 1.9 .3 .1 7.6 6.C

SE I .6 2.3 1.0 .2 -. 1 5.4

SE .2 3. 1.1 4.8 .S

4SSE I .9 2.3 .3 3.6 4.6

s -1 4. S0 .C12.3 7.3

SSW 3 9.2 5.0 .29 8.7 8.6

,.R ,13.6 ].$ 1,1 *.

i 9 3.3 3.7 1.3 .3 9.1 8.1

M&a I i .1 2.7 1.2 .1 F4. 2 9.2

NW I .1 1.1 1.3 .6 3.6 7?.7

Rm I .1 .6 .9 .6 2.1 8.8

............................................................................................................................................VARIABLE

TO1ALS .• 32.( 33.3 11.3 .6 100.0 6.6

.. .................... ................... ........ ...... ...... ... .. . ... ... .

TOTAL NUMBER CF OPSERWATIONS: 90C

* 6

i * k *l I I 1, 1 2 .1... . . . . . . .

o": *1 1,1 l* e 3 6 7, .

GLOBAL CLIMAIOLOGV BRANCH PERCENTAGE FRECUENCY Of OCCURRENCE OF SURFACE WIND DIRECTION VERSUS MIND STEEDUSAFEIAC FRO" POLRLV OBSERVATIONSAIR WEATHER SERVICEIMAC

STATIO. NUPBER: 725261 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 77-86:1 MONTH: SEP HOUasILSTI: 09U-1100

WIND SPEED IN KNOTSDIRECTION 1 1-3 N-6 7-10 11-16 17-21 22-27 2e8-5 33N-No 4I-N N6-SS GE 56 TtTAL PEANIDrbREES I I % MIND

...................... ..................................................................................,. i"' ";.

1 1 .2 1.4 I.S .1 N.2 9.C1NNE .1 .N .9 1.C2.4 9.0

NE .3 1.1 1.f 1.? 41 .7 0.6

" FNE . 1.1 1.9 4 3.9 1.3

E . 2.1l 2.1 1. 1 .1 5.9 7.8

FrSE .* .q .7 .2 2.0 6.?

SE .2 1.1 1.1 .1 2.6 6.6

SSE I 2 1.3 .N .1 2.1 6,c

I S .6 2 7 6.3 2. .2 12.2 6.6

SSW .2 1.3 3.4 5.1 10.1 10.1

sw .2 2.1 3.1 5.2 1.1 .1 II' 11.1

WSW .2 1.N 3.7 3.2 .6 9.1 10.2

W I * 1.1 3.7 2.7 .6 8.9 9.6

%NW I1.1 3.6 1.1 .3 6.6 9.8

Nb I, 3.3 1.7 .1 6.1 9.2

NNW i.r 2.0 1.2 N.2 8.7

* VARIAGLE I

CALM 2.9 /it///

TOTALS | 3.7 2.17 39q. 2.1 3.1 .1 100.0 .C

/ TOTAL NUMEER OF OPSERVATIONS: 900

-J

, p

GLOqiAL CLIPAIOLOGY BRANCH PERCENuTAGE FRE2UrNCY OF OCCURRENCE OF SURFACE WINID DIRECTION VERSUS IdiNo SPIEDus FAric FRO" 11OL'RLY OBSERVATIONSAIR WfAVI1E P SERVICEIMAC

STATION NUNPER. 77S287 STAION NAME: NIAGARA FALLS IAP NT PEIlOD OF RECORD: 77-36MONTH: SEP HOURSILSTI: 1200-1400

IWIND SPEED IN KNOTSoIPECTIom I 1-3 4-6 7-10 11-16 17-21 22-27 2e-33 34-0 41-6? %-SS GE 56 TOTAL MEANO(Gl[rS) I I VND..... ................................ ....... ................ ................... ; ;........;.......

A .3 1.6 3.6 S 6.2 8.1

SNr I.E 2.3 .9 6.2 .S

NE I .1 1.1 1.6 .9 3.? A,1

rhr 1.2 1.6 1.1 3.6 6.6

I .! I. 2.1 .9 6.7 7.9

fSE . * .6 *6 lq 6.6

st .6 .2 .7 S.8

!sr .2 1.r * .3 2.0 6.7

.3 , F . S 9 1*8 .2 9.0 9*2

Sw .Z•7 4.4 3. 2 .2 1,8 10" 1

w .1 . S .7 7.7 3.6 .1 IS.8 l1.?

Sl .7 I.C 3.1 4.F 1.0 .1 10.9 11.6

., 1.6 2.8 3.9 .2 8.6 10.3

.N 1.1 2.9 2.3 .2 .1 67 Io.

NW 1.2 6.4 2.7 .2 6.6 9.9

f;h66 .p 2.2 I.E 6.0 9.3

VARIABLE I

1OFALS I 2.4 16,6t 43.6 32.1 3.6 .6 100.0 9.6

...........................................................................................................................................

TIAL NUMBER or OPSERVATIONS: 90C

GLO AL CLIMAIDLO6 BRANCH PI.RCENTAGE FRECUENCY OF OCCURRENCE Of SURFACE WIND DIRECTION VERSUS MINO SPEEOUS AlET AC FROM IO.RLY OBSERVATIONSAIR WEATHER SERVICEIMAC

STATION NUMBER: 725287 STATION NAMES NIAGARA FALLS TAP NY PEQIOD Of RECORD: 77-86MONTH: SEP NOURSILSTI: iSU-ITO

............................................................................................................................................I WIND SPEED IN KNOTS

DIPECIION I 1-3 8-6 7-10 11-16 17-21 22-27 ZP-33 34-80 81-87 48-S5 GE 56 TCTAL MEAN(DEGREESP I % WIND

..............................................................................................................................................h ,. 2.4 8.6 .9 8.3 7.8

Nf .2 1.! 3.1 1.1 5.0 a.j

NL 1.1 1.8 1.C 8.6 a.2

•NEK; .9 2.9 1.0 8.8 8.3

E ,? 1.2 2.2 .8 .1 8.6 1.8

-fSE .7 .6 .1 1.3 6.9

SE . .3 .8 6.8

EE .7 .1 .1 .9 7.8

.1 5 1.9 2.8 1.8 .2 6.7 9.2

,SSW .1.2 8.3 3.3 8.9 9I.Sv .* 2.2 6.7 9.9 .7 18.6 10,8

3 .SW I.1 2.9 5.1 .9 9.7 33.7

I .3 1.1 2.2 2.8 .3 .1 6.6 10.3

bNWd .9 2.1 3.r .81 6.8 10.8

RU I . .9 3.2 2.1 6.6 9.3

?•.INW .2 1.8 2.8 1.2 5.7 S.C

........................................................................................................................................VARIABLEICAllLM (3ll J

TIALS I 2.2 39.9 81.8 32.9 2.p 13 100.0 9.5

............................................................................................................................................

TOTAL NUMOER Of OSCRVATIONS: 9,o

IL

-2~VT

GLOBAL CLIMATOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE MIND DIRECTION VERSUS WIND SPEEDUbSAFErTA¢ FROM'

F'OVRLY OBSERVATIONS

AIR hEATHER SERVICE/MAC

STATION NUMBEP 725281 STAlICN NAME: NIAGARA FALLS ljP NY PERIOD OF RLCORO: 77-SbMONTH: SEP HOURSILSTI: 1800-2000

I jjIN0 SPEED IN KNtOTS

DOLECTION 1 1-3 11-6 7-10 11-16 17-21 22-27 2'-33 31-10 41-47 18-55 GE 56 TOTAL MEANID(EGa[[SI 2 W IND

N .7 3.!-

21 .2 .1 6.1 6.

NNE I 6 2.2 1.1 • 4.2 6.3

NE i.2 4.r 2.0 .1 .1 6.1# 6.3

Ehr .7 1.2 3.V . 1 8.0 5.9

L .2 3.-, 2.1 1.C 6.8 7.c

ESE ,. I.C .7 .2 2.3 6.0

SE .2 1.2 .1 1.6 1.7

SSE ,1 ,7 .4 ,- 1.4 7,2 .

S ,3 11.6 3.2 1.9 .2 10.2 7.6

$SW .1 2.1 1.11 .9 7.9 7.8 t,

Sw .2 2. 9 6.6 3.2 12. 8.5

WW51 • . 1.9 1.1 3. . 1 9.8 9.S

I .2 2.C 3.2 1. 3 6.8 8.1

WNW .1 2.0 2.0 1.2 5.3 a.0

.NY .4 1.2 1.2 c .1 3.6 ?.%

NJ I 1.1 1.3 .7 .1 3.6 S.7

............................................................................................................................................VARIABLE

i ~CALM /I 1 1.41 / 1.41 Ilt i.*1 t., I I/ / I I /., I/ 11/,#/ i 1 2.9IIIIi,

TOTALS I 8,7 '.1 $F. 15.-; .7 .1 100.0 7..

TOTAL NUMBER OF OESERVATIONS: Oi 0

L

L4LOAL CLIFAIOLOGY SRANCH PERCENTAGE FIREVLENC, OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SfEEDUs USF 7C FROM* V-OURLY OBSERVATIONS '.AIR WEATHER SERVICE/MAC

STATION NUMBER: 725287 STATION ANM: NIAGARA FALLS lAP My PERIOD OF RECORD: 77-86MONTH: SEP HOU 5sILSTI: 2100-2300

.. . .. . . .. . . .. . . .. . . .. . . oe e .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .

WIND SPEED IN KNOTSIIRECTION 1-3 5-6 7-10 13-16 17-21 22-27 28-33 34-0 41-4o 48-s5 GE 56 TOTAL MEANfULGREES) I WINO

b .6 7 3.L .7.7 6.5

ONNE I 1.6 1.0 . 3.2 6.6

hE . .* .6 .1 1.9 5.6

ENE .4 1.8 1.* ., 5.6 6.3

E 1.2 5.4 3.7 .1 10.1 6.3

SSE I.7 1. 1.7 .2 5.3 6.24 SE 1.3 1.7 .3 3.0 5.9

SI E. 1.6 .5 2. S.C

S .8 b.* 8.5 1.6 .2 11.1 7.2

SSWI .1 2.C 1.4 1.9 .2 7.6 8.5

54 b .6 3 #1 8.2 1.2 .1 9. 7.7

WSW .1 1.3 3.5 1. 6.2 8.6

.I 7 3.2 3.3 . 7.7 6.9

,- 1.4 2.8 . ., 7.8

AW. . .7 1.1 .2 .1 2.3 S.0

Nh 1.2 1.3 .6 3.1 7.6

... .. .. ......................................... ... .........................

Ii~~~CL iii l I!!11 ! } iI 1 ll !I I I it III I. I I. I It I 1t !!II I II I iI I I / I I I I il Ii I /I I I Il I/ I ! I 0. /1/................................. .............................................................................................................

101AL %UMBER OF OFSERVAIIONS: 90

- -- -------

GLOrAL CLIMATOLOGY BRANCH PERCENTAGE FREUEtNCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUSAFETAC FROM POLRLV ORSERVATIONSAIR WEATHER SERVICE/MAC

STATION NUMBER: 725287 STATION NAME; NIAGARA FALLS ZAP Ny FErIOD OF RECORD: 77-86MONTH: SEP HOURSILSTI: ALL

............................................................................................................................................WIND SPEED IN KNOTS

OIPECTIGN 1 1-3 4-6 7-10 11-16 17-21 22-27 2R-33 34-40 41-47 48-SS GE 56 TCTAL MEANDCOG[ESI I WIND

N I .5 z2 2.5 .(6 .0 5.7 7.1

NNE . 1.! 1.4 .5 3.5 7.3

NE *4 1.6 1.4 . .0 .1 7-2

E NE I .6 1.7 1.9 *6 11.8 6.9

L .7 !.1 2.4 *A .0 7.0 6.7

rSE I .4 1.. .e .2 3.z 5.9

( ,3 1.4 to s C 2.3 5.5

ISE .4 1.? .4 .1 .0 2.2 5,7

S .6 3.7 4.4 1.9 .2 10.9 7.9 rS. .2 1. p 4., 2.4 .1 4.5 6.9

• SW 2. 1 4.4 3. 9 .5 .0 11.3 9.8

S M .W l.A 3.5 2.6 .3 .0 8.5 9.7

W I . 2.q 3.4 1. 7 .2 .0 6.1 6.5

1161 .2 1, 2.3 1.4 .1 .0 5.4 9.C

Nu .2 1.1 2.2 1.1 1 .9 4.7 8.6

IN .1 ,1 1.5 .0,O , 3.6 8. 3

VAQIAFILr

CAL" // // / // /// /// // / 6.11 /1///

TOTALS | 59 29,. 37.0 19. 1.6 ,1 100.0 7.6

.............................................................................................................................................

TOIAL NUMBER OF OSrfRVATIONS: 72uO

-bp4 ml

G LOVAL CLIPATOLOGY HRAtNCH PERCEI.TAGE FRECUENCY OF OCCURRE9NCE OF SURFACE WIND0 DIRECTION VERSUS WIND STEEDUSAF EAC FROM POVRLY OBSERVATIONSAIR WiEATHER SERVICE/MAC

STATION NUM'EP: 725287 STATION NAME: NIAGARA FALLS TAP NV PEPIOD OF RECORD: 77-86MONTH: OCT HOURSILST: 0000-0200

WIND SPEED IN KNOTSDIPECTION I 1-3 4-6 7-10 11-1b 17-21 22-27 ZE-33 34-40 41-47 48-55 GE 56 TOTAL MEANI UE GRE ES 5 WIND

...................................................................................................................................7o 2 ~.s 1.'i .9 . 5.3 7.6

I.NU .3 i.i .1 .z 2.6 6.5

NE I .; 2.2 .8 .2 3.7 5.7

1EI .71 2. .8 5.4 4.6

I 1.6 b.6 2.7 .2 11.1 5.7

ESE .6 3.7 I.c 5.1 S.3

SE .2 1.3 .5 2.0 5.2

-' I .1 .6 .6 1.0 6.5

S.6 2. ? 407 2. 3 9.9 R.4

SS 1 1.2 2.3 1.5 S.1 .C

SW I 1~ 1.1 2.7 2. 7 .5 7.3 10.14

Usk, .2 2.2 2.6 1.7 .3 6.8 8.1.

,1 2.; 5.2 5.4 .5 .14 .1 9.9

W-NW °. 2.C 2.2 1.1 .1 S.? 8.

7I 1 .' I 2.5 1 . 4.8 8.6r

Otf.4 .9 1.6 .5 2.7 8.6

VARIABLE I

CALlP m //I/i/i/ //i //i/1/ /il///// 7.0 ////I/

tOTALS 7 Ps 34.1 32.2 17.8 1.2 . 100.0 7.3 c .

TOTAL NIUMBER OF OSlrVAlwOtnS: 930

L ....

GLOBAL CLIA70ILOGY PRAN4CH PERCENTAGE FRECULNCY Or OCCURRFNCE Of SURFACE WIND DIRECTION VERSUS MIND SF LEDUSAFEI AC FROM 11OURLY 09SERVATIONS

STATION. NUMBER: 7752b? STATION NAME: NIAGARA FALLS IAP NV PERIOD Or RECORD: 77-86MONTH: OCT HOURS(LSTI: 0300-0500

WIND SPEED TN KNOTSUIPECIOt I 1-3 4-6 7-In 11-16 17-21 22-27

2T-33 34-ND N1-47 48-SS GE 56 TOTAL MEAN

IDEGRESI I W WIND

...................................................................................................................................II , . 2.4 1.7 7 .1 N.9 6.S

L d I .3 .© .3 ,1 1.6 5.9

kE I 3 .p 1.9 .1 2.6 6.6

I N t 1- 3.3 * S.N '1.5

E 1 7.5 3.? .2 12.5 5.5

f" SE I . 2.7 1.? .3 9.7 5.9

SF B3 IC . 1.7 5.1

s sE .N 1., ., 2.5 5.6

S .p 5.3 i.P 8.9 8.9

rS- .1 1.1 2.3 1.2 .1 N.7 8.6

S W I 1 1.7 2.e 3.! .1. 8.6 10.3

-S. I .5 .r 2.6 1.S .1 6.7 8.2

S . 2 3.r 5.8 3. .3 ,7 13.5 9.6

hwN I . 1.9 1 .9 Ct . 3.8 7.8

N .2 I.E 1.6 1.1 .1 9.0 8.8

1. 1.0 .' .1 9.6 7.9

TOtALS I 6.6 33.r .3 I 1 1.6 .100.0 6.9

I " ......V ...... ...............................................................................................................

IOTAL NUMBER OF O.SERVAIIONS: 93a

-'N!'

CLO1 3AL CLIPAIDLOGT BRANCH PLRCE14TAGE FREQUENCY Of OCCUIRRENE OF SURFACE WIND DIRECTION VERSUS WIN1D SFEEOUSAFETAC FPO" FOLRLT ORStRVATIONSAIR - A HEF srgviCC/mAC

SlINNUMPLR: 725267 STATION NAME: NIAGARA FALLS TAFPT PI:IO ?FPOD 7-86

MONTH: OCT HOURSALSTI: 0600-0800

I1ND SPEED TN KNOTS

UIILCIIN 1 -! 4-6 1-10 11-16 17-21 22-27 2P-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

(ObREESI 2 WIND.. .......... .. .. ... .... ... .... .. .... ... ... ... ... ... .. .. ..... ... .. .. .. .... .... ... ... ....... .... . ........ ... .. : .... .... 1.2 .4 4.2 6.

• P"! INE I • 1 1.' .6 .? 2.6 6,] .

4 'E .7 1.1 1.1 .2 2.9 7.3

INr 1.2 2.6 1.6 .9 5.8 6..

E " 1 , 5 - 7 2 .6 . 1 9 . 6 6.

f SL I .5 4.? 1.9 6.8 5.7

Sr

.5 1. 1.3 .? 4.0 6.4E , 3 1 . s 6 3 2 . 6 . 2

S . 3. 3.) 1. 10.3 7

.s .2 ?1.2 2.3 I. .3 .1 5.1 9.3

Sw .1 1.p 1.7 3.2 .6 .1 7.6 20.0

JSt .1 1.7 2.4 2.2 .5 .1 7.0 10.1

S .1 l.r, 5.6 4. 2 .3 .1 11.9 10.0

I"N .1 1.7 1.2 , .°2 .1 8.8-

NW ~ . 1.3 .A .1 3.81 8.8

t6. .9 1.3 I .Er 3.1 9.1

VAR IAJBLE

.ICALM jj//// / /j /j//j/j/I/j///jl/jjj//jj//j///S / //// 8.9 jiOll

TOTALS 6.3 74. 30.2 17. L 2.2 . 100.0 7.2

..............................................................................................................................................

TO AL NUMBER PF OSFRVATIOAS: 930

NL

GLO AL CLIrATOLOGY BRmt.CH PERCENTAGE FREQUENCY OF OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SPEEDUSAFETAC FRO" 'OLNLT OBS'RVATIONS -AIR ;EATNEP SERVICE/MAC

STAION NUER: 72S267 SIATIC% NAMES I1AGARA FALLS lAP NV PERIOD or RECORD: 77-86

MONTH: OCT HOURSILSTI: 0900-1100

I 1WIND SPEED IN KNOTSOIFICT1 .O I1-3 4-6 1-1C 11-16 17-21 22-7 ZF-33 34-40 41-97 98-55 GE 56 TOTAL MEAN

IU:.-PEESl t MIWND

E .1 2.2 9.6 1.9 8.8 8.5

U 1z.. 1.2.5 3.5 7.0

Sf I 12 . 2.7 8.3

1. 15 33.S 6.8

4 . . 3.1 .1 11.6 .

SSWb 1 .4 2.91 2.9 67 1.

Iw. . . . 11.2 12.9

ISw .3 . 2.9 3.91 .9 .9 8.5 11-7

!3.5 S. .8 .1 11.3 11. 9I

I .t . 2.2 3.1 .3 7.0 11.2

NI I . 9 2.0 1.6 .3 9.5 10.5

* VAPIABLEI

C$L 2.2 /11/

T tOTALS I 2. 3 l 33.1 9.2 1.1 .1 1.0 9.1

TOTAL kUffPEP Of OC.SfRVAIIONSs %jI'

" .E I ,Z q, |9 ,081

(LO.AL CLIVAIOLO6Y BRANCH PLPCFNTAGE FPECUENCY OF OCCUPRFH( OF SUOFACE WINO DIRECTION VERSUS WIND SPEEUUSAFETAC FROM VO1LV OBS RVATIONS

STA1ION NUMBER: 725287 SIAI1CN NAME: NIAbAFA FALLS TAP la PLPIOO OF RECORD: 77-86

MONTH: OCT HOURS(LST): 12U0-1400

WIN SPEED IN KNOTSDIFECIIUN I -3 4-6 7-10 11-16 17-21 27-27 2-33 34-4C 41-47 48-55 GE 5b TTAL MEANIDEC.I#EESI W | BIND.. . ., . . . . ...................... .. ;: ........................................... ...................................

F. *2 l.T 2.3 1.15.5 7*9

*Nl o2 1.2 1.3 ,4 3.1 7.4

PIE .1 I.t 1.4 3.2 8.0

F , t 1.q 2.6 1.5 6.0 8.5

" .2 2- 3.7 1. 7.6 8.3

SE 1o" .9 .2 1.7 6.9

*SL .' 1.0 .1 1.4 8.1

SSF I.6 .9 .6 .2 2.4 10.0

*.* 1., 3.4 2.1 .1 7.6 9.s

!S- , .,3 3. .4 6.1 j1,S

Sw ,. .5 4.1 6.5 1.6 .5 ,3 13.7 13.C

4.5W ,. 2.6 5. c 1.5 .9 11.0 13.R

I.. 3.3 7. 3 1 .1 12.4 12.2

VNW 1. 2.4 .2 .4 7.3 10.7

I *. 1.1 2.4 2.4 .3 6.2 10.3

"NA . 2.2 1.2 3.9 9.1

.............................................................................................................................

CALM I /i/I /l/iiil/i/ i/ UhI /j /Ij ,/,/i/i// j/i/lu/i .9 1/////

TOTALS 1 2.2 16.7 ib.I 37.7 5.7 1.4 1 100.0 |0.%

...........................................................................................................................................

STOTAL NUFBLR OF OOSERVATIO4S: 930

o ., •, ,L .

~~( i_---- -

p

V.LOUAL CLIMATOLOGY BRANCH PERCENTAGE FPEVUENCY OF OCCURRENCE OF SURFACE kIND DIRECTION VERSUS WIND SPEEDUSAFUlAC FROM OURL OPSFRVAIIONSAIR WEATHER SERVIC:/MNC

STATION tUPLP: 725281 STATION NAME: NIAGARA FALLS IAP NY KNOTS OC OU: 17-10MONTH: OCT HOURsILS7): 1500-1700

I kINDSPEED IN KNOTS

DIPECION I !-3 4-6 7-1C 11-16 17-21 2 7

-27

2P-33 34-40 41-47 48-55 GE 56 TOTAL MEANIoFGRCESI I I WIND

I,;.3 1.9 .6 4.8 7.1

PNN . 1. 3.4 .' 4.8 7.9

NE I I. 3.0 1.2 .1 6.1 8.3

FNE I. 3.7 .9 6.3 R.C

E 1.2 2.4 2.C 5.6 9.5

rS . .n .3 • 1.4 6.q

S! I* . .3.9 9.6

5 r 1.2 2 .1 2.5 7.9

S .2 I. 2.5 1.6 .1 6.2 8.5

sS6 .2 . 2.2 1.T .4 5.5 10.4

I. I12 4.4 7. 3 1. 3 .4 14.6 1I.9

VS . *C 2.3 . 1. .1 11.4 13.1

;.-2 1.2 2.7 4. 2 .8 .2 .1 9. 11.5

wN .w 2.4 4. .3 .1 7.7 118

NW .1 2. 2.F I.e .2 7.1 A.5

N . 1 1.' 2.2 .4 4.7 7.9

.... ............................................................................................................................* VPNIAPLE

CALM Im/ 1//1 //// / / ////// / /////////1/// lltti ililp/// //1// 1//// .9 t1/

TCTAL$ I I.4 21.' 37.2 3J3. 7 5.1 1.1 .2 100.0 9.9

............................................................................................................................

IOTAL NWIPES OF O~srh VA TI0NS: 93u

11

GLJuAL CLIPATOLoGY PRANCH PEPCENTAGE FREUUENCY OF OCCUPRENCE OF SURFACE WINO DIRECTION VERSUS WIND SFEED

USAFETAC FRO- VOLkLy OBSERVATIONS


SIAIICN NUVILP: 75287 SIAIION NAME: NIAGARA FALLS lAP Nv PEPIOD OF RECORO: 77-86

MONTH: OCT HOUpSLSTI: 1RO-2000

.110U SPEED TN KNOTS

ODIECION I 1-3 4-6 7-0I 11-16 17-21 22-27 28-33 34-40 41-47 48-55 E 56 T(TAL MEAN

40( GF'EES t 2 WINO

-t ,*2 2*r 1.3 . 4.3 7.2

14NE .5 I.. 1.3 .1 3.8 6.1

NE I .: 2 . 1.7 .2 4.9 6. 3

LEr .2 5.2 3.0 .1 8.5 6.1

I 1-2 3.5 2.9 1.! e.9 7.C

I5L . .5 .9 .2 .1 2.0 7.6

S1 .2 1.! 1.2 2.7 6.4

SF I .4 1.6 1.1 .2 3.5 6.C

S .* 3.C 2.6 1.L .2 7.2 7.6

S I 2.2 1.9 .s 4.9 7.6

SW 1. 7 5.9 2. 7 .3 10.6 9.8

sy 1 3 .0 5.4 .4 .- 10.5 1 l.4

' -2 1. 0 3.9 4.4 .5 10.5 lO.4

v NW 2 I.C 2.4 1.E .2 .S .5 10.0

?jW .3 .. .9 2.2 .4 4.S 10.9

f Nt w . 1. 1.3 f1 .1 3.5 @.c

.......................................................................................................................

OITALS 1 7 I.7 35.2 21.7 2.4 .4 100.0 8.1

...........................................................................................................................

IotAIL hugFeER or OSERVAIONS: 930

mV

-.

p . * .. -

GLOLAL CLIFMATOLOby BRANCH PERCENTAGF FREUENCY Or OCCURRENCE OF SURFACE WIND DIRECTION VERSUS WIND SIEDUSAFCTAC FROP VOtRLY OBSFRVATIONSAIR WEATHrR SERVICEIKAC

STAlICt. NUPRLR: 725287 STATION NAME; NIAGARA FALLS TAP NT PEPIOD OF RLCORD : 77-86MONTH: OCT HOURSILS11: 2130-2300

I 6IND SPEED TN KNOTS

* DIPECTION I 1-3 4-6 7-10 31-16 17-21 22-27 Zp-33 38-80 'l-7 88-55 GE 56 ITAL MEAN

I DE GrEE S I S WIND... ... ... ... ... ......... .. ...... ... ................................................ ............... ;...... .......

N o * 2.8 1.7 IoC 57 7

N.NE .z .6 1 .0 . 2.0 7.8

NE .6 1.1 .8 .1 2.3 5.8

.E1. 2. .6 .1 4.6 8.9

L 1-2 4 8. 5.3 I.C 12.8 6.8

f SE ,* 2. 3 1.3 .2 8.2 6.2

S " ,l 1.5 1.8 . 1 3.1 6.6

IS[ .1 1.2 1.3 .1 2.7 6.7

S .9 2.? 3.0 2.6 8.6 8.3

CS'A .. 1.9 1.7 8.0 10.5

I , 1.8 2.8 2.q .2 .1 7.2 10.2

uS I .3 1.9 8.3 2. .1 ,1 9.0 9.3

I .2 2.6 5.1. 8.2 3 3.5 9.9

W .1 1.7 2.6 1.7 .5 6.7 9.8

Nw .1 1.1 1.6 1.1 11 8.0 9.8

1.1. ,| .4 1.9 .6 3.31 8.8

I.-

TOTALS I 6. 2P.U 36.e 19. 1. .A .8 100.0 7.7

......................................................... ..................................................................................

TOTAL NUMBER OF OSERVATIOIfS: 050

(/ ' ,.

f _ _

bLObAL CLIFATOLOGV PRI.E PERCENIAGE FRECUENCY OF OCCURRENCE OF SURFACE WINDW 3IPECTION VERSUS WIND SF-EDUSAF[TAC FROP IJOLRLY OBSERVATIONSAIR WEATHER SERVICE/MAC

.iAllCN NUMnER: 7252b7 STATICN NAME: NIAGARA FALLS TiP MY PERIOD Of PECOPO: 77-86

MONTH: OCT HOURSELSI : ALL.

.............................................................................................................................................WIND SP&EED IN KNOTS

DIRECTIoN I 1-3 4-6 7-10 11-16 17-21 22-27 2R-33 34-40 63-61 6l8-55 GE 56 ICTAL MEAN()EGREES) % WIND

2 . . 3.7 . .0 .1 6.9 7.3

NE .5 1.6 1.! S .0 3.0 7.3

I NE .7 2.7 1.9 . 5.8 6.6

. .9 6.2 3.4 6 et 9.b 6.8

ISr I .3 2.3 1.1 .2 ol 3.7 6. 2

.2 1.31 5 . 2.3 6.7

sr .2 1.2 1.0 .2 0 2.7 6.9

s .5 2.? 3.6 2.1 .1 8.8 8 .6

5. I . 1.1 2.2 1.' .2 .0 5.3 9.7

Sw .1 1.2 3.5 6.1 .9 .7 .1 10.1 11-3

V I.S6 .2 1.4 2.8 3., .6 .3 .n 8.9 11.1

W . I 1.8 6.6 4.q .7 .1 .0 12.1 10.6

6N I .1 1.' 2. 2.2 .3 .0 6.0 lO.C

Nd 42 1 I 1.8 1.t .2 .' 6.8 9.5

h .I I.C 1.7 .p .1 3.6 8.6

.........................................................................................................................................

I ALS I 4.5 27.1 35.11 26.: 3.0 .7 .1 100.0 6.6

..............................................................................................................................................

TOTAL hU8eLq OF OOSEFVATIONS: 7440

J L

T ,. . ..

.6, :-

* i bLOMeA rLIMA'OLOG e.A*iCH PERCEhTAGE FREC6F..NE OF OCCURRENCL OF SURFACE WIND DIRECTION VERSUS WIND SFEEDUS FETIC FPO- .OLRLV OPSERVATIONSAIR ,tA THEP SERVIE[,4NC

!l.IAvL NUMRLR: 725287 SlIAlICN NAME: NlAGARt FALLS TAP NV PERIOD OF RECORO: 77-86MONTH: NOV HOURSLSIS: 0000-0200

I N( SPEED IN KNOTS

CitEciIlN I 1-3 ,-6 7-1c 11-16 17-21 22-27 2P-33 34-140 112-47 48-55 GE 56 ICIAL 1AN,t0E GPEFS I t WIND

2* 2. 3.7 .S 5.2 6.7

NrNF .4. 1.1 .2 1. 8.8

&r ,) .. .a .1 17 S.9

F,( h. 1.7 1.6 l.4 S.0 8.3

E 1. 1 , 3.7 1. .1 9.7 T.3

I SE ,4 2.') 1.2 .1 .1 o. 1 6.7

SI. .2 . ..7 1.7 5.7

t .2 1.' .7 7. ..

S .7 3.2 2.6 2.7 .1 .1 9.3 8.3

So . .q 1.8 2.2 .6 5.7 3o.c

SP. I .1 1.1 1.7 . .7 5.6 IO.S

WSW I.2 1.6 1.7 !.c .6 .3 .2 . 133.8

" .q 3.1 6.9 1. 1 i.2 .1 2r. 10.3

lVNW • . 1. . 2.6 2. 7 1 6.9 9S'

I I. 1.6 1.1 56.2 q.?

% N4e I .1 .9 1 .1 1' 6.0 9.9

........................................................................................................................................VI.NIANLE I

CALP |I/I/I/IdS/ S.6 /t1111/

TOTALS I . 2.2 30.7 28. 1 3.? .4 ,2 300.0 8.6

TOJAL NU38( OF OnSERVATXONS: 900.

- -... .. .. .... .- . . .

GCLO;AL CLIMAIOLOGV MRANCH PLRCCITAG[ FRLOLTI1CY or OCCURRENCE OF SURFACE WIN DIRECTION VERSUS WI4D SFIEDvSAF eTIAC FRO" VOLNLV OBSERVAIMONSAIR AiTHER SERVICEIMAC

STAICN NUM3FR: 715297 STaliCk NAHE: NIAGARA FALLS lAP PIT PERIOD OF PLCORD: 77-86It"NTW: NOV HOUw 1 4L513: 0330-0500.. ..... ... ............ .. .. ...... ............................................. ....Ds, * .' ;

I ..Itd SPEED IN 914011DIPEC1I|0 1-i 4-6 7-1C 11-16 17-21 22-27 20-33 3440 41-41 98-55 GE 56 ICTAL MEAN

IDEGREESI g WIND14

.1 I. ~ 1.1 1I. Z. .............

............

.

-.N{ . . 7 2.2 8.2

4 NF .2 .4 .9 .7 1.9 7.9

1.1 4.4 2.23 2.Z .4 00 .

SE°9 7 1 1.2 S.3 9.3 .9

S! p. 2.0 2.1 1. l5.1 10.2

5.6 I.C *6II. 4 •. 11 1. 10,-

$ ~ . 2.r 2.3 ?.c . , 6.9 I.1

h w 2. .3 1. 4 12.C

MNW 7 1. 1.7 39 1-

............. ........................................................................ . ...................................VAr I AWLF

Lf. *///I I ,[ t/ l I?/Il /. /o ./ It/i//p/II 4IIIifItIIIIIIIIIm011ItItII1 6.1, 111 ,.

-OVAS I '.b 2.1 0.9 26.4 4.) .9 0C.0 S.,

IaTAL 4UMBER OF OP.tRVA1IO1S1 9o17

7 L*t

.. . .... . . ..... .. . . . ... . . ... . . . .. .... ... . . ..... ..

bLOilL CLI ATOLOGY PRAICH PERCEN1tGE fRE;Ul.CV Of OCCURI;R'dCC OF SURFACE WIND OlECTION VERSUS WIND STEEDUSrFEAC FROM fOt'LY OSERVATI1ONS

AIR WEATHER SERVICE /AC

sIAI C' IUPBLR- 725.1 S1AT1IO NAME: N6bARA FALLS TAP NY PE"i00 OF RECORD: 17-86MONTH NOV HOURs.StI: 0600-000~~~~~............. .. ....... ....... . ... . ...... ; . . .... ........ ............ ........

WINED SPrED 114 13401$

UIPE[C110N I 1-3 6-6 1-10 11-16 17-21 22-27 2P-33 34-80 4-47 a8-55 GE S6 TlTL HEIN(DrGOLES? 2 WINDO

N D 8 2*8 1.3 .1 8. 6.9O

t. NrV .3 .7 .3 .3 1.7 6.9

flE I .3 1.8 1.C 1.1 .2 8.6 8.c

L ,1 !. 3.8 2.t . II . @.3

rsr .1 2.7 1.6 .2 8.6 6.3

IC I .1 1.8 ? 8 .2 2.? 6.2

.15 * IC .? .1 1.9 8.8

S .6 Z.8 3.8 2. 3 .6 .1 9.q 9.1

-!sW .1 2.1 2.? .3 5.8 10.8

I • .7 1.4 .. 9 10.9

I ,5w .2 1.8 8.0 2. , 3 . 9.6 Ic6.

2 ,t 2.8 6.2 7.t 1.2 17.0 10.1

' I .8 1.1 1. 2.0t .3 S.1 9.8

N. t6. . 2.6 .788 11.3

.kw .1 1! 1.2 1. 3.9 9."

vAt IA8AL: I

TOTALS I 8 2,4.. 30.3 3C.1 W. ~ .OOC 6.6

TOTAL KUHREI C1F 0'SERVAIIONSz ,jc

II

GLOo L CLIPAIOLOG? BRAiCH PER(LNTAGL rRECUIkCy OF OCCURRE14CE OF SURFACE WIND DIRECTION VrRSUS WIND SPEEDUSAFCTAC FO0" FOt'NLV OBSERVITIONSAIR WATH~dER SERVICE/MAC

STA1IICN NUA4EP: ??5267 SIAT10N NAME: AIAGAR. FALLS TAP NY PE0IO0 OF PECORD: 77-86MONTH: NOV HOURS|LSIA: 0900-1100

.. . . .. . . .. .. .. . . .. .. .. . . .. .. ....... ... .' .... .... ............................................ ...I hIND SPEED TN KNOTS

01ZEClION I !-3 4-6 7-10 11-16 17-1 22-27 2"-33 3.-80 #1-? I8-5 GE 56 ICTAL PEAN,OEb Ers, I :NO

%. 1 .1 ! .1 .7 2.7 S*

NE I . I.c 1.1 1.! 3.6 9.0

hr .2 .9 1.6 .3 .1 .1 3.? 9.C

I o4[ I 1.1 .6 .32. 9S

E .2 1.7 3.2 2.] .2 9.,

E E 1 7 .6.. . 6.17L '1 1.4 . 2 .2 4 .S

$t .1 * 1 .7 1.8 . 2.0 ?.?

h , 1 2.1 3.3 3. 36 .1 10.2 9.

SS- .2 1.1 2.2 3.", .4 .1 9.0 10.9

Sw . ' 2.3 3.; .6 ?.9 11.4

I. Su .7 .? 2.3$ 41.1 7 .8 . 9.9 17.9

.' 1 3 .3 P.,1 1.6 1! 14.2 12.3 '

WNW I .2 i.r 2. 2.8 .9 ?.0 10.7

3. .2 .6 2.? 2.1 ..2 6.3 1I-S

CAM3.2 iO.6l* . ATAL

101LS I 2.6 Is. 33.C 3 7. 7.2 I. 100.0 10.3

................................................................................................................................................

TOTAL NUMLPl Of OFSErVAIONS: 9J1

.' . .

" " ' . .. i

-LO-6L CLIPIIOLOGY PRA'%CH PERCENTAGE FNE 'cLNCY Of OCCUURErc OF SURFACE WIND DIRECTION VERSUS IND ST(EUSAF[ IAC FRO- 6OtRLY OPSERVATIONS r.A1? .rATNE SERVICCIMDC

s1*cN NUonLp: 75z87 StAIteN NAME: NiAGoRA FALLS IAP KY PEIO0 Of RECOPO: 77-86

MONTH: NOV HOURstLSII: 12CO-1400

| WIND 5Pr~n TN KNOTS

UIPECTIv% I 11 %-6 7-1c 11-16 17-21 2"-27 ZP-3S 36-4O 41-47 46-SS GE 56 TOTAL MEAN4DrOf ES I IT WIND

N 1 3. 4.NNE 1 .q 1.3 3 .1 3.3 ?2hr 7 1 .2 4 .2 2.6 9.

h r r , 1.3 . .3 3.3 9.,7

E C .1 1,I 3.8 2.4 7.4 964

r SE I I 1. 2.8 8.6

Sr 1 .2 .9 1 .9 9,6

SS( * .2 .6 1.1 8.2

S I1' 3.1 2." .2 .3 7.9 iO.S

SSW I . 3.3 3.1 .2 7.1 10.9

$ .1 1.f ,.1 6.0 1. 12.3 22.3

*5 , 1 .8 1.9 ,Z 2.1 ,5 10.3 111C

6 ,. 1.1 2.7 7.t 1.9 13.1 12.6

666 3.3 3.2 .1 .6 .1 l.2 11-2

* o1 1.1 1.9 Z. 1 1.1 .) 6.9 1o5

* 6 1.9 . 3.1 9.5

.......................................................................................................................................

CAL., I 2.13 m/ill

JOIALS I 1 1Z %6.2 32.2 % c. 3.3 i., 100.0 10.'

............................................................................................................................................

TOTAL NUMBIR OF O'SERVAIOINS: 9UG.(

• ,,. m

-'

GLCLSL CLIPIJOL0G? PRAPNCH PEQCED3AG[ FREQUEhCY OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS 1NO i -EEDUSAFEIAC FROM PlOERi. ONSERVATIONS

AIR .tAINFR SERVICEMiAC

$TA13CP NU"4LR: 7.5287 SIATICN NIE: N1168il FALLS 1#P NY PL&IOD OF RECORD. 77-8b

MONTH: NOV H.0URSILSI3: 1500-1700

WIND SPEED Itg KNOTSDPECrl 04'i 1 1-3 4-b 1-IC 11-16 0-21 22-27 2F-33 3%-40 41-47 6-55 GE 56 TcTAL MEAN(016G ( S1 1 2 WINO

. .1 3.? 2.3 ,4 .1 6.? 7.1

. I. . 2 .1 2.1 e.0

hl. ,I .C 1.6 4. 6.4 7.8

1. 3.2 1.6 1. -. 6 9.6

L ,., 2.9 3.2 2.1 8.b 6.5

fSr .. * 1.0 .9 2.1 9.?

SE. .c .6 .1 .2 7.6

S 3 .2 .2 *6 .1 1.3 9.3

• 1.1 2 .t' 2. 6t . *? 6.6 10.7

SS. I . 2.1 3.1 .? 7.2 I0.C

3-.1 3.3 S.! 5. 1.2 .T 11. 1

S W . 2.2 S. 2 1.2 .6 9.9 12.9

. I " • 3.2 P. 1 .1 1 .2 12. 3

-P, I . 3. 2.p 3.1 1.0 q.3 10.R

. I 1 2.' 2.1 2. 7 .2 . 7.2 9.7

t.C I L ' 1.6 3.6 3.6 i.2 R.?

IIALS I 7. 19.1 i0. 39.t 5.4 1.6 100.0 10.3

101*AL kUMME CF oiSfRVAI aNs: 9qC

(L

A•

- 2'&• ,; ,

GLOHAL CLIPATOLOGY BRA14CH PE[C[tTAGE FRLLQUNCV OF OCCURRENCE OF SURFACE WIND UIRECTION VERSUS WIND SFEEOUSAF1 AC FTO' IOIRLY OBSE0VATIONSAIR dWFATHIR S[RVICCIMAC

STATION NU1"IL8: 7?52#? SIMWION NAME: NIAGARA FALLS TAP %I PERIOD OF RECORD: 77-86MONTH: NOV HOURSILSTI: 1800-2000

.. .. .. . .. .. ... .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. .. ... .. . .. .. . .. ............................01L14NI 1- - 16 1-1WIND SPEED IN KNOTS

DIPLC| ,I | 1-! 4-6 7-1,1 1-16 17-21 22-2,7 28-33 34-40 81-87 8-55 GE S6 T(TAL PEAN

SUGLS WIND

4. I- 1.7 7 .. I

'NE I .: 1. .3 .7 3.8 5.6

NE" .1 1.6 .6 .9 3.3 7.3

ENE I .f. 3. 2.4 1. 4 8.3 7.

L . 7.1 5.2 1. 8.9 8.3

ISL 1.7 2.v *6 3.9 7.8

St , ,c *,' .8 6.4

sr ,. 1." 1.4 .6 2.? 8.

S 2 .2.f 1.9 2.9 . 2 . 8.1 9.

!Swd 1 . a 2.2 1 .7 .1 S.41 9.2

So ,. 2.9 3.4 .8 ,7 8. 11.7

4S'd I 1.q 2.2 3.3 .4 .2 .3 7.8 1.9

* I .." 2.6 5.9 8.1 3., 17.8 10.7

id * 1 • *2.7 .3 .4 ,' 6.1 1 1 .C

alA .1 8 1.6 1.4 . 4.0 10.0

4,. I *O 1.4 2. J

. 14.? 10.6

VANJABLr

IIALS I 7.6 24.p 34.3 33.i 3.4 ,, . 100.0 9. 3

........................................................................................................

TOTAL kUnrEP OF OPSERVATIONS: 900 L

- --- ,.-.---. - .

_•f

I.. .

GLOBAL CLIPAIOL tY PHANCH PLPCttAG rEK CNCY OF OCCUPREf.CE UF SURFICE dIN' DIRECTION VERSUS INO SFEEDUSAFETAC F9O POL'RLy OPStRVATIONS£.w MLAIHNE SFRVICE/4AL

STAIICN NUMILR: 725267 SIATICh NAME: N]AGPfA FALLS lAP NY PEPIOD OF PECORD: 77-86

MONTH: NOV HOUpsILSTI: 2100-230

MIND SPES IN KNOTS

U"EnC1ILN 1-3 4-t 1-1t It-It 17-21 22-27 2

-3 3

31-40 41-47 48-55 GE 56 1ETAL MEAN11 UPES I I

t WIND

N 1.7 1.2 .. 0

r" 6, .1 . 1.7 6.3

NE I 1.' .? . 2. 6.7

NE 4 2- 7. 1.11 1 . r .6 7. 1

E 6.e 3.9 1.6 10.4 7.3

S 2.2 1.9 .2 4.6 6.6

I.1 . 2.2 6.6

.SE .2 .5 1.1 .1 2.3 6.

S .. 2.1 2.7 2.1 .1 .1 7.8 8.7

SSW I.E 2.11 2. 4 .16.0 9.9

Sw I . , 2.1 3.a .9 7.6 11.9

LsA e. 1.? 2. 2.q .° .6 7.7 11.7

.1 2.f 6.? 7.7 1.2 . 111.8 10.9

WNW 1.9 2.? 1.o

.1 6.3 9.5

NW .2 .1 1.3 1.6 .3 7.9 10.1

1.2.1 2.7 2. 1 .1 5.3 10.3

VARIABILEI

..... :: :.. : .............................................................................................................. ..•CaL" | # / / / 3.2 li//il :

TOtALS I !,? 21.' 52.11 ='S1 3,2 1.2 100.0 9.C 0

IORAL tiumES o OOPSFRVAtION : 9u0

..L: 'S

4 .. 4.,4~ S

GLOIAL CLIP'AIOLOGY BRANCH PERCEt.TAGE FRCOLCNCV Ov OCCURR!NrE OF SURFACE WIND DIR[CTION VERSUS WIND SPEEDUSAFETAC FRO- -OURLY OBSERVATIONSAIR %FATHER SERVICE/MAC

STATIOn NUM3ER: 725267 STATION NAME : NIAGARA rALLS IAF NY PECIOD OF RECORD: 77-l6MONTH: NOV HOURSILSII: ALL

. . ... .. . . . . . ...... ... - b ..... ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I 6dND SPEED IN KNOTSDIrECTIIN I 1-3 '6-6 1-10 11-16 17-21 22-27 2F-33 366-80 41-47 '68-55 GE S6 1(1*1 6PEANIDEGREESS I MI~ND

f. . 3.1 1.5 .7 .0 4.2 1.5

NNE 1 . .P .8 .5 .0 2.3 7.7

NE .2 1.1 . .6 . .02.8 7.6

*tt.E .3 * .p 1.4 1.2 .1 8.8 6.1r

E .5 3.C 3.6 Z.C .2 9.2 8-2

FSE I -f~. 1.7 .6 .0 4.0 1.5

SE .1 A .? .2 1.6 6.9

.7 .3 n 2.0 7.1.

5 .4 2.2 2.Q 2.6 .3 .2 .5 96.

S I .1 1., 2.3 2.6 .Z .1 6.2 10.3

P4 .1 .rc 2.3 3.9 .8 .1 8.3 US.6

u W .2 1.1 2.8 3.1 3 .1 .4 .1 96.0L 12.2

Id Z 2.1 5.2 7. Q 1.3 .3 1b6 31.2

v fw 3 2 2. S 17. 1 10.2

NW i . 1.6 2. 1 S8 . .1 10.1

Fi# IfAH[ p 1R4 1 ./RA.

•DId C I .3 .-P -0 11 18 l7-1.A .8-3 3-0 lq? q-s [S T8.3 30.N

.. . . . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . . .. . . . . . . . ..... .... .... ....

VARIABL17

CALM 11jjJ/P11II/i iI/di/II i llmi/ //j/Jjj ///j111/// m #II//////III I.#j// 1// 3.7 111.411

TOTALS I 3. 22.2 31.6 33. 1 .9 3.0 1, 100.0 ?.5

TOTAL pU"PCR 0$ OeSERVATIONS: 1200

S-. .- ."------2 -1.- 6 9 S

rS[ . ,; , ,3 .. "'2,) ? q ..

GLOrAL CLIMATOLOGY I,9ANCH PIERCEhTAE FRECUENCY OF OCCURRENC'L OF SURFACL WINO fIECTON VERSUS WIND StEEDUSAFETAC FqOm 'OLRLY OPSERVATIONS

AIR wFAIHEF StRVICE/MAC

STATION NUP'.EP: 725ZB7 STATION NAME: NIAGAIFA FALLS IAP NY rpr'lO OF PECORD: 77-86

MONTH: DEC HOURS(Ls5 I: OOC-020c

............................................................................................................................WIND SPEED IN KNOTS

LIPECTION I - 8-6 7-10 11-16 17-21 22-27 2P-33 34-40 41-47 48-55 GE 56 TOTAL MEAN

(CEGrTEEDS) x WIND

.. 1 7.7

.1 * 1.~ *1.6 7.9

NE I .~ 1.0 , 1. 7

TT . 1.7 * , 3.2 7.2

. .3.3 3.2 1. 7 .1 R.7 7.7

I . 1 l . l .-

. 1 6 . 7

S 1 .2 3.2 .3 1.7 .9

S . ,1 .6 6.1

S I ., 1.. 3.1 1. . .2 7.3 8.8

. .7 .. 1.0 2.U .4 5.5 I,5D

"S I 1.5 1.5 4.' .9 R 9.7 122

4 .1 9.r 9." .6 . 13.5 12.6

'1 3 - 7 6.2 1 C.G 3.5 ,.2 .4 11.7

1, 1 . 1.3 1 . .1 3. 3 12.1"

.1 1.' 1.6 1.1' .2 13 9.3 9 .

......................................................................................................................................V? 4 1ARLF

10 1 ALS I .9 23.1' .1.7 3 C.' E.4 1 .4 .2 300.0 20.0

......................................................................................................................................

TOTAL NmiMPIT' OF 0-SrR RATIONS: airl

AtL

GLOAL CLIMATOLOGY PRANCH PLPCEhI. GE FRELUENCY OF OCCURRENCE OF SURFACE WIN0 DIRECTION VERSUS WINO SPEEDuSAFETAC FROM POLRLY OPSERVATIONSAIR WEATHE SERVICE/HAC

STATIC. NUMILR: 725,87 STATION NAME: NIA(,ARA FALLS TAP NY PLOIOD OF RECORD: 77-86MONTH: DEC HOURS(LST]: 0300-0500

............................................................................................................................

WIND SPEED TN KNOTS0 If!LCIoN I 1-T 4-b 7-10 11-16 17-ZI 22-27 2P-33 34-40 41-47 48-55 GE 56 TLTAL MEAN

IFirEESI % WIND

...............................................................................................................................................N 2 .r 1.1 . 1 4.2 a.I

N;NE ,1 7 .3 4q 1.2 F. " 2

NE .1 .6 .6 1.7 7."

r , .4 1.6 .7 .€ 3.1 7.2

L 1.1 4.' p . .7 9.5 7.c

S I .S E.S 2.7 S.3 6.7

sr . .6 1.5 6. 2

Ksr . .. 1.0 6.2

S .] :, 2.7 1.P .3 e.1 . 4

I5. . (11~ 1 2.'1 .2 4.8 10.2

I,' . 1.2 2.0 2.S 1.0 .3 7.3 11.6

6. I.p 3.2 6.2 2.4 .8 .1 14.5 12.8

., 3.' 7.4 I.1 1 .7 .6 25.2 11.7

'.1 7 I7? 1. . .5 .2 4.0 9.5

~44 I .c .4 .7 .1 .1 2.4 10.

8?,. .? , 1.7 I .l .2 .1 .4 10.8

VARIA'L I

.O . ..I .'-..9 . ... .. .....20 . .8

TOtAL NUMI'L' CF OISEVA71 DS: 930

4 L

•GLOB3AL CLIMATOLOGY qRANCH PERCENTAGE FPLCUENCY OF OCCURRENCE OF SURFACE WIND DIREC71ON VFRSU$ WIND SPEEDUSAFETAC FRO" POLRLY 09SERVATIONS '

,! AIR EATHEF SERVICEIMRC

"I TATICN NU Fq :?8-7 STATION NAME: NIAGARA FALLS TAP NY PERIOD OF RECORD: 77-8bMONT": DEC HOURS(LSTI: 0600-0800

eN U .1 .4 .3 .9 kND

1.2 .' .4 .1 2.4 4,8

CFCIN 13 26 7-10 3.31 1711 12-.7 2P3 44.314 85 E 6 T L MA

N 2 ,5 2. 1,6 .4 4 .1 65

.[ 1.6, l $e 1l, 6.1

.2 .6 ,.

'..! 1, 4 9 .V 2.6 6.1

', 1424 32 2 ~ . .4 P86

L 1 .3 .1 2.0 .5 5.3 I.C

SE .5 15 1.7 2.2 2.2 .2 7.8 12.

2 1.7 e. 46 16 .11.4 ?. 1

•c. 4. 6.5 4.4 2.9 . 23. 113

.N6 I,' 1.1 1.7 2. .2 5.2 12.11 - 2.9 4.6 1.6 5 11.11 12.6

'.M r 6. . . 11. 3.4 9.19.V1A6L

TOTALS I .? 23.4 27.1 31. q. n 1. 3Ot.o 9.7

................................................................................................................................................

TOTAL NUmpM' of orSERVATIONS: g? 9

IL

6%

010. AL CLIPATOLULT. PRI114CH PERCENTAGE F RE ;UENCY or or cuRR NcE or SURFACE WIND DIRECTION VERSUS WdIND St EEOUSAFETAC FROM I9OtRLY OBSERVATIONSAT;? kEAIR SERVICO.'MAC

STATIC!. NUPlIR: 7'5281 STATION NAME. t#lAGARA FALLS TAP NV PEDIOD Or RECORD: 77-86MONTH: DEC HOURSELSTI: 0900-1100

JIN4O SPEED TN KNOTSL I

1ECTI 04 1-3 4-6 7-Ic 11-16 17-21 22-,7 20-33 34-40 41-417 48-55 GE 56 TOTAL MEAN

Nt I 1 .3 .s .2 1.2 11.6

S...1 1.5 7.7

I .3 1.1 1.1 .! .1 2.9 7.9 FI~2. r 3.4 3.9 . 9.7 9.8

iV

I5 St I., W. .2 1.91 6.7

s~ .1 *~ ~ *1.9 6.9

!SE. 1.7 1.2 .9~S 7.0

S I 1 1.q 3.9 2.1 .59. 96

iF

~s. I trI. 2.1 .8 .2 6.0 12.2

S., .4 1.c 1.2 2.E 1.9 .7 7.3 12.8

-IS 1.1 2.9 9. 2.7 .9 .2 12.9 13.6

.3 2.2 6.0 10.P 3.1 .6 .1 23.1 12.2

AlgA 1 s. 1.0 1. 7 .9 .1 6.0 10.6

K. I. 1.7 1 . fi .2 .1 3.9 10.-9

NI ,l W ~ .9 1.6 .2 .1 3.3 111

VfR1ABL

CALM I j 1 jjIIjjI////j/~jj//II./i/jI/~I~J//I~IiII/~~/ 2.6 ji/li

TCTALS I 2.4 1?.( 29.9 39.4 11.2 2.2 i! 100.0 10.7

TOUTAL kUMFE4 Or OPORRvATITNS: 9530

JL

a] bATH( SERICEIA¢ 4

GL3DAL CLIVATOLOGY BRANCH PRCEI.1AGE FREQUENCY OF OCCUPREN E OF SUPFACE WIND DIRECTION VERSUS WIND SP-EED.

USAFEIAC FROM IJOL'RLY OBSERVATIONSAIR WEATHER SERVICr/MAC

STlATCR NUMIPR: 72528? STATICN NAIE: 11AGAA FALLS ZAP NV PE&,IODI OF RECORD: 77-8t,MONTH: DEC HOUpsILSII: 1200-1400

I WIND SPEE) It, KNOTSCI CLCfO 1N 1 1-3 "-6 7-A0 11-16 17-21 Z2-27 29-33 34- 0 1-'7 88-55 GE 56 TfAL MEAN1 0 Uk ; L F S I W .IND

h *8 1.2 i.r .2 2.8 10.1

NN. .2 ..6 .3 1.7 7.6

%E .€ .3 .T 1.8 8.7

NE I ., 1.. 1.3 .F .1 3.7 8.1

L .1 1.5 2.9 3.2 .1 7.8 9.9

r SE .,1 , .8 2.n 7.3

SF .1 3.1 .2 .2 1.6 6.5

SSE I . 1.2 1.6 . .1 3.7 7.9

s.? 2,C 3.S 2.0 .1 8.0 9. 1

SS. 1., 1.7 2.E 1.3 .1 6.9 11.9

*w . 3.2 4.C 2.8 .6 11.5 13,3

WW. 1 .1,

6.! 3.2 1.2 12.8 152.

I .2 .; 8.2 IC.2 3.9 .9 .1 .1 2L0.f 13.7

e .t 2.2 3.7 .8 1.2 11.8

.4 I ,1 .8 1.5 1, .3 . 4.1 11.3

Nhd .1 . 1.8 .E .2 .1 3.8 9.8

CALM ljI//I////I////// //////ii///////////I///I/i/iI /ju//Uj//jjJ /jjI / jI/j//J/I 1.0 ///i

.........................................................................................................................................TO tALS 5 1.4l ., 0 8.0 3 6. 1 13.1 3.1 1 1 100.0 11.6

*0 A** * *** N, **f .**, , * *0F 0*L-51'R * A*T,* .*0 P *4 S, . * . ** G** ... ** * .. ** * * * * * * * *e** e * * * * ee * * e e * ee * ~ eIT.OT1L NtLIE OF O--RVA-IO-S: -AM

L.

GLOAAL CLIIAIOLOGY !3RACH PERCENTAGE FPELUfNCY OF OCCuPRrhcE OF SURFACE WIlOD DIRECTION VERSUS WIND STEEDUSAFETAC FRO- 6'Ot.(LV OBSERVATIONSAT w[ IATHP SERVICE/MAC

STAIC NUM9ER: 7:5267 STATION 40M[: NIAGtQ# FALLS JAr My PERIOD OF PCORD: 77-8601MONTH: DEC HOUps(LSI): ISDO-17OO

I WIND SPEED IN KNOTS

LIP£C1ItN I I-I '4-6 7-10 11-16 17-21 22-77 28-33 39-40 41-6? f8-55 GE 56 TcTAL MEAAN

lUrGREES! I % WIND

................................................................. ...... ..................................NNE .4 1.r 1.1 33 7-9

N I .I IC I.X .E 2.6 7.5

LiN 2.3 1.2 .4 .2 0.1 7.6

E ,. 1.. 2.6 2.q .2 7.3 9,4

F SE I1. 1.7 1.C 4.6 7?9

'S I1.6 P .1 . 2.8 7.8

1., 2.2 .5 .1 6.3 7.0

.4 I . r .p 3.c .6 b.c 11.3

Sw 1.2 2.7 3.E 7.2 .7 10.1 12.9

'. Sw 1.2 1.7 f.4 2.3 1. .2 16.5 14.8

| 2.r 5.1 11.0 2.6 1. 1 1 21.8 12.8

WNW I 1.1 2.6 3. ,3 7.6 11.2

%4 1 . r q 1. 6 3 3.9 10.3

NNW. .p .6 1.1 .2 2.6 9.9

...........................................................................................................................................

CALM 1.7//// # / I M/lt

IIALS :. 1 9.. 25.' 3b.7 9. 5.' .3 .1 100.0 11C.

............................................................................................. .............................................

TOTAL NUNBER OF OFSERVATIONS: 9JL

--- - , L

f.LO:,AL CLIPAICLOGY PRANCH PEfLEg.160L FRECUIENCY Of OCCVRRftCE OF SURFACE WINU. DIRECTION VERSUS WlIND SfCLIJJSAFETAC FRO" POLWLY OPSERVAY10NSAIii ,FATHER SERVI(CE/MIC

STATION NUM9ILR: 715,17 STATION NAME: NIAGARA5 FALLS TAP hS PE91OD OF FLCOPO: 17-66MO'NTH: DEC NOUqsEStI: 1PO0-2000

I blP.1 SPEED) IN KNOTSrjIFECTI~Or 1-11 4-6 7-1u 11-16 17-21

2 2-27 2P-33 1.4-1c '11-67 948-55 GE 56 TiTL MEAN

60t09LES1I % WI114

K. I 1.7 1.6 Q ~ . '1. 63

ERiE I 1 .1 .6.9 ?.6

NiL I . f .4 .1 .2 1.7 7.8

11.0 I .3 1.-6 .6 .5 3.5 6.1

L. .2 2.2 3.s 2.1 .8. 8.6

rr .. 1 1.9 . 3.9 7.%

sr I 1. 1.9 .13.0 7.6

sr.:. .9 .5 1.9 7.8

S - 12 2.7 . ~ .6 5.5 9.91

SS . 9 .6 1. 93.8 10.1

Sw I 1 1. 7 1.3 3. 1 2.0 .1 .6 12.6

1. 7 3.0 5.6 1 .1 1.2 .2 1.l 12.8

I2.6 6.7 13."5 3.5 .7 .2 26.8 1Z.s

4.,.14 1.'3 1 .1 1 .7 .9 .7 .9 10.6

h .4 1 . 1 .2 1.4 c .1 9.1 9.1

N .- .5 .5 .1 .2 . 2.5 10. 3

................................................................................................................. .............................

CAM I ,,u ,I /ii I//uI II I /I/I/i pi//II/I/iiipI/I/jIj/Ij/jJ I//jjI/Uj/ 3.? ill//1

TOIALS 7 .7 2L.!3 26.3 34.7 5.9 1.9 .4 100.0 10.1

...............................................................................................................................................

TOTAL NUMPIS aOf01 OS E AV A I104S: 93C

j L -

GLO-,AL CLIPMAIOLOtY PRA-ACH PERCENTIAGE FRLGLLNCY OF OCCURRENICE Of SUPFACE WIND) DIRECTIONd VERSUS WIND SFEEDUSAFEAC IRG LILY ORSERVATIONSAIR WEATHER SERVICEIK4AC

STATION NIJMIEl: 7252861 STATION NAME: NIAGARA FALLS IAP NV PEP100 OF RECORD: 7-86MONTI4Z DEC MOU~sILSTI: 2100-2300

I WIlND SPEEnTh TN 401DIPLC11fn 1 1-1 4-6 I-jr 11-16 17-21 22-27 2e-33 34-40 841-87 ? 88-55 GE 56 TOTIAL MEAN10E'E S I I I WIND

N I1. ~ 1.6 .~4.? 7.9

'N I .1 .3 .611 6.8

NE . . ~ .~1.3 8.3

NE 1.6. .6 .1 .1 2.S 6.6

E 3 .1 r. 2.it 2. S .2 8.2 6 .7

tsr . 1.q 1.6 .7 3.9 6.6

.51 Iu 1.4 z2 .8 2.G 7.5

S I 3 2.2 3.S I. 7 .4 8.2 9.2

5. I . 5 1.3 2. 2 .8 8. 1I.9

Sv 1.4 .9 2.7 ? I.2 .5 7.2 12-S

I . A 2.8 4. 2 1.14 . .2 11.2 12-S

4 .c 6.8 11.5 3.8 .3 26.8 12.1

VNA I . .p 2.2 1.8 .5 S. .3 11. 3

N ~ I 1 ~ 5 .4 .2 3.S 10. 3

'.3 I .2 1.5 1.7 .5 . . .9 9.2

.........................................................................................................................

TOTALS I : 24.' 28.1 3L.# 9. Z.S .2 a0. 10.2

TOTAL h18 PEP CF OPSERVAIIO.S: 930

YL.

i~

*

i.

]Vl

-LUbAL cLIMhTOLOGY PRANCH PERCEkTAGE FREQUENCY or OCCURRENCE OF SURFACE WIND DIRECTION VERSUS BIND $FE(D

USAFETAC FROM FOLRLy OBSFRVATIONS

-.AIR FAHR SERVICE/MAC

STATION NUPRLR: 1,5287 STATION NDE: NIAGARA FALLS TAP 's PERIOD OF FECORD: 77-80

IONTH: DEC HOURS(LS)I: ALL

I"1ND SPEED IN NOTS

! IPECIION 1 !-3 9-6 7-10 31-16 17-21 22-2 7 2P-33 34-0 11-47 18-55 GE S6 TLTAL MEAN.DEvEtrSs I % WIND

1. 1.. .1 .2 3.4 8.2

NNE .1 * .6 * ' .1 1.2 8.C

FKE ,3 1.6 .9 ,. .1 .3 .j

f .5 2.! 2.9 2.c .2 P.7 8.7

r SE1 1.7 1.6 .9 3.9 7

s r1 .3 .7 .1 , 1.8 6.7

SE ,1 1.2 .7 • ., 2.9 ?.2

S !. zt 7.1 1. 7 .3 7.9 8.9

5W I ,I 1,! 1.9 , . 6 .I S. 1 11.3

56 . 1.9 1.0 3. 1 1.8 . 8.6 17.6

:S1 .WS 1. 2.7 5.7 2.2 . .1 12.9 13.3

Z..? 2. 6.2 1c .9 !31 .6 1 2.0 17.?

|5 It .1 1.1 i 1.9 .2 .1 C 3.6 I.

651 , 1 .s 1.! 1.2 3.5 il,

V?* R I AR L E'?I*L(I

' CAL" / * // / / #/ / 2.7 ISl

TOSL 1 Z.4 Z1 , 2 2E J?. 9.6 2.- .2 .0 100.0 1O.4

TOTAL NUMBER OF OrSERVATIONS: ?39'(

_ .

4',

.. . . .. . .... . . . . . . ... . .. . .... .. . .... . .8 . . . .. . . .. ... .. . . o A., ; l

.I----

tLAJAL CLIPAIqLOGV RANCH PERCLkIAr FL EZANCY OF OCCURRENCE OF SURFAC( WID DIRECTION VtRSUS 6IND SFE[LuSAiETAC FPO- VOtRLY OPS[RVATIONS

AIR WEATHER SLRVICE/MlA'

STATION NUO40ER: 72528? STAION IIM: NIAGARA FALLS SaP NY PAIOD OF PCORO: 77-e7

MONTH: ALL HOURS(ELSI: ALL

I wIND SPEV[ IN KNOTS

oi1'ECTIu [6I c3 16 7-C 12-16 ?-21 Z2-Z

7 V-3 34-9L il-t7 49-5s 6E Sb I(TAL "EAN

tD1(-"E!sl It WIND

1.3 1. 2.9 c . .1 * ? 7.7

PN .2 , 1. 1 .0 .' 2.9 7.6

NE .2 1*'r 1*' .1 *l .1 ." 3.3 P. 3

t NE .5 1.7 1.7 1.2 1 . .0 S.1 8.C

t,5 2,A 2.9 2*s .2 S 10 2.1 .

, E .E .2 . 1. " . .* .0 *2,.9, a,9

SE .$ .6 , I, .* 1.7 6.3

UNS ! I • a 2.r ,2 .0 9 .0 6.1 6.1

S .5 2.9 3.2 1. .2 .0 .0 R.2 S.C

'.p 3.0 -. . 7.2 9.9

C M I 2.2 4( 4. 5 R9.3-9 r 12..2 .q .o 22.6 10.9

I .* 3.2 ' 2.0 .4 .1 .9 2r0., 22.-

a ~1.9 11.6 '4.' 1. .2 0 .0 22.3 10.9

I 2 1.! 2.2 1. . .1 6.1 10.2

*N .2 1.2 2.2 1., .3 n0 r0 9. 9.8

f INN .1 2.0 1.6 1.2 .1 .2 11 .0 9.2

.................................................................. ............................................................................

* CALM 06///I iI./i~/~i~i /p~I UI~ I .6 11114fl

TOTALS I .44 24.9 391.6 2C. 3 9. 3 1.J .1 200.0 6.9

...............................................................................................................................................

*TOTAL 'NMPE CF O"SrRVA1tT'dS: A7642

GLO :DL CLIPSTOLOGY FIRA-jCH PEPCL AG( ORE.UENCYV OF 0CCUPRENCE OF SURFACE IO DIRECiON VERSUS WIND SP(EEUSArEIAC FRO" POL1Lv OPSRVAIONS

AIR4 hEAINHR S1RVICE/HM4C

STAhION fillMREP: 1Z2827 5TATI ON NAMtE: NIAGARA FALLS lAP 'IV PEPIOO Or PLCOPO: 77-A,

MONTH: ALL HOURSILS1I: ALL...................................................................

S2

r" ;'Ii0 rL T , T' ; ; L ~ .........................................................I IL , I0 ''

CEILINGDS 2C' TG 1400 PLE b.17F VISIBILIIILS 10l PILE OR POPEfAND 404

CEILIIGS 2n0 FEtT OR MORE WITH VISIBILTIES l? 10 2-12 MILES

wlSO SPE$D" IN KNOTSDJEC1i|ON I I-! 4- 7-10 11-16 17.21 2--27 2 -3 3 -314-4 4 1-47 48-5s GE 56 T 8L MEANI ur GQEE st W IND

0

............................................................................................................................*N j . 1.5 2.4 . .2 6.3

NP . *O 1.9 1. 7 .4 .1 s* lO.S.

tf,[ .2 1. 2.9 2.4 .4 .1 .1 . 10.2

L .4 1.3 3.4 2. .3 9.6 9.1

F SE ? I .1 I.E . . Z.6 1. 1

S .F . 3 ,c 1.0 5.9

s9.1 .1 ,. .4 .1 1.4 6.1

.5 2,1 1.9, ,9 .1 .7 5.9 7.6

FSW , I , I2. 1. ,I , 5.4 86

S5. . 2.2 3.9 3.1, 1.0 .3 .o 11.6 10.?

W I, , .I.1 S, .5 t 1.2 1 , .2 11.7 12,C.'

• . I•' 3 ,3. ,. .4 ,2 9.9 II.C

I ., 1.2 I1. 2', ,r .3 62. 10.6

h .7 1. 2.4 .9 .1 5.0 10.

h4Nw .w c,- 1.p 2.. .C . 92 10.1

*VORIAPLE I

TOTLS 1 21 . 32." 3 1. q 7 1 h .2 DO . 00 9.1

..... .. .

30181 r, UPl' OP O:'.rvI49A10.S: 33991?

- A

pPPPP,P~ppl A:. A RRRRR TY TIIII1 T0DD000D0

PPPPPPPPP AA A RRRRRRRRR TI1 DO00000pPP PP L L RR R TT DO DO0

pPPPP AAl:AAAA RR IT 00 0:P A A L AAA OR PP I I Do 00

PP A LA PR R TY 00DDD 00

PPAA AA OR OR TT 000000000

. .. . .....

77--'U -_

CEILING VERSUS VISIBILITY AND SKY COVER SUMMARIES

CEILING VERSUS VISIBILITY SUMMARY

THIS SUMMARY IS A IIRVARIATE FREQUENCY DISTRIBUTION BY CLASSES OF CEILING FROM "a" THROUGH EQUALTo oR GREATER THAN 20,000 FEET AND AS A SEPARATE CLASS -NO CEILING'. VERSUS VISIBILITY IN 16CLASSES FRCR ZERO TFRoUGH EQUAL TO OR GREATER THAN 10 MILES.

DATA DERIVED FROM HOURLY OBSERVATIONS.

FREQUENCY DISTRIBUTION PRESENTED BY THE STANDARD i-NOUR TIME GROUPS BY MONTH, MONTHLY AND ANNUALLY IALL YEARSCOMBINEDI.

NOTES:

BEGINNING IN 1966, "ETAR STATIONS REPORTED VISIBILITIES TO 6 MILES ANO GREATER THAN6 MILES. THEREFORE T0E COLUMN FOR VISIBILITIES EQUAL T' OR GREATER THAN 10 MILESAPPEAR BLANK.

AS A RULE, AIRWAYS STATIONS NORMALLY REPORT VISIBILITIES TO 6 MILES AND T OR GREATER. HOWEVERSOME STATIONS REPORT HIGHER VALUES. THEREFORE, THE 10 MILE VISIBILITY COLUMN SOMETIMES CONTAINSMALL PERCENTAGE VALUES. HOWEVER. THESE VALUES ARE OF LITTLE MEANING AND SHOULD BEDISREGARDED.

FOR METAR CIVILIAN STATIONS REPORTING "CAVOK", ALL CEILINGS ABOVE 5000 FEET WERE SUPPESSEDTO SOCO FEET. THEREFORE, NO PERCENT VALUES APPEAR ABOVE 5000 FEET.

I-

SKY COVER SUMMARY

PRESENTS PERCENTAGES OF SKY COVER IN EITHER IOTHS OF COVERAGE OR "AIRWAYS CLASSIFICATIONS".

DATA SUMMARIZED BY THE STANDARD 3-HOUR TIME GROUPS BY MONTH. MONTHLY AND ANNUALLY lALL YEARS COMBINED).

ALSO PRESENTED ARE MEAN SKY COVERS.

FOR AIRWAY STATIONS, THE CONVERSION FROM THE AIRWAYS DESIGNATIONS TO IOTHS FOR PRESENTATION ARE:

CLEAR 0110

SCATTERED 3110

BROKEN - 9010

OVERCAST 10110

OBSCURED 10/10

L.

S .i'

P GLAAL CLIMAIOLOGY BRANCO- PEsCENTI.E RE(EUENCY OF OCCURQENCE OF CEILINIG VrRSUS VISIBILITY

LS8FEIIA FROM HOURLY PBSERVATIOtJS

AiP a0AT -ER SERVICE/MAC

STATION 14UMBER: 775287 STATION NAME: NI*GAPA FALLS lAP NY PEIOU OF RECURD: 78-67

MONTH: J8, HOUqsIL T3: 0000-020

I N GE GF GE GF GE GE GE GE GE GE GE GE GE GE GE GEFEET I 1C 6 4 3 2 12 2 1 1/2 1 1/4 1 '/4 5/8 112 116 1a

4 "

..... .... .... .... .... .... . ..

40 CEIL 1 15.1 17.7 18.4 18.41 18.5 18.7 18.7 i9. 19.0 19.0 1q.0 19.0 19.0 19.0 19.1 19.4

'IJE .0 15 ., 19.C 19 19.7 19. 20.,L 20. 20.1 20.3 20.3 21.3 20. 203 20.3 20.4 20.6GE 18701,1 16.? 19.0 19.7 19.7 19.P 2L.C 2q.0 20. 1 23.3 ?t.3 2n.3 20.3 20.3 20.3 2O.4 20.6 t,1. 16- LOI 1.? 19.1 19.7 19.7 19.8 2L.0 20 20.1 20.3 20.3 2r. 3 20.3 20.3 20.3 20.4 20.66E Itrcri 16.' 19.0 19.7 19.7 19.4 2C.0 Z.C 20.1 20.3 20.3 29.3 20.3 20.3 2E.3 20.4 20.6E ICI0 17.3 'G.C 20.6 20.6 20.e 21.C 21.0 21.1 21.3 71-3 21.3 21.3 21.3 21.3 21.4 21.6

(,E I-JLnl IF!. 21.3 22.c '2.u 22.2 2.:.% 22.4 22.5 22.7 22.7 22.7 22.7 22.7 22.7 22.8 23.0LE 9rLC1 I-.- Z1.5 22.3 22.3 22.4 ?2.6 22.6 22.7 22.9 22.9 22.9 22.9 22.9 22.9 23.0 23.2E 8ZCI 20.1 27.3 24.1 24.1 24.2 74.4 24.4 24.5 24.7 24.7 24.7 24.7 24.7 74.7 24.8 25.1

GE 7 0|o 2r.4 23.0 24.5 24.5 24.6 24.6 24.9 24.9 25.2 25.2 2c.2 25.2 25.2 75.2 25.3 25.5;.E 6r0|.0 21.A 25.3 26.0 :6.0 26.1 26.3 26.3 26.5 26.7 26.7 26.7 26.7 26.7 26.7 26.8 27.0

GE 5-CO1 Z.9 7.3 28.1 28.2 2.4 2b.7 2h.7 28.8 29.3 79.C 29.0 29.0 29.0 29.0 29.1 29.4CIE 4 LC 27.? !1.7 1?.2 33.5 34.c 34-3 34.3 34.4 34.6 74.6 34.6 34.6 34.6 14.6 34.7 34.9Lr C CC1 29., 31.7 35.4 15.8 36. 3 L.7 36.7 36.9 37.1 !7.1 37.1 37.1 37.1 37.1 37.2 37.4f. 3!i.CI 71., 37.8 o.8 40.3 41.0 41.3 41.3 41.5 41.7 41.7 41.7 41 .7 41.7 41.7 41.8 42.0.0 3r001 3S5.7 43.9 45.9 46.5 417. 3 4b. 2 48.3 48. 5 48.7 48. 7 4q.7 48.7 48.7 48e.71 48.8 49.0

I.[ 25' 1 41.9 01.0 53.1 51.z r. ' 1. 73 57.4 57.6 57.8 57.8 57.8 57.8 57.8 57.8 58.0 56.2GE , -GoI 46.F 59.z 62.5 64.4 66.8 6E.6 6.,2 b9.b 69 . 8 69.8 6Q.1 b9.8 69.8 69.8 69.9 70.1

F IF 19 480.6 F1.8 65.1 67.0 69.5 71.3 72.C 72.4 72.6 72.6 72.6 72.6 72.6 72.6 72.7 72.9. I !' or %';.5 t '.t 67.3 69.9 72., 75.3 76.2 77.C 77.2 77.2 77.2 77.2 77.2 77.3 17.4 77.6,E 101 l5.2 (..9 68.8 71.8 74.9 77.41 78.6 79.4 79.6 79.6 79.6 79.6 79.6 79.7 79.8 80.0

bE If CC1 51.2 66.3 70.6 74.0 77.6 8L. 3 81.8 32. A 43.1 93.4 67.5 83.5 83.7 83.8 83.9 84.1I.E curI !I.4 86.8 711 74.8 78.6 81.5 80.1 8q.U 84.4 P4.7 84.8 84.8 81.9 R5.1 85.2 85.4G.E p80l 1.'. (7.6 72.3 76.1 83.3 53*9 85.8 86.9 87.4 07.7 8P.0 88.0 8A. q8.2 88.3 88.56E 7tlI 51 . 67.6 12.5 76.6 81.1 '6.9 67.7 83.2 b.7 A9.2 8Q.6 89.6 89.7 89.8 89.9 90.1

t C 1t '52.! (-A.0 72.q 77.3 82.2 n6.b 69.7 90.4 91.2 91.8 97.3 92.3 92.4 92.5 92.6 92.8

LE scE l 52.3 f8.j 73.3 77.d 82.1 .7.4 90.1 91.8 9,.8 23.7 94.2 94.2 94.3 94.4 94.5 94.700 402l 52.3 65.4 73.0 78.2 a .4 '6.4 7 93.1 95.1 96.0 96.e 97.0 97.2 97,3 97.4 97.6IE ! 'rI s.3 '4.5 73.7 7.3 8 3.s r8.6 Q2.1 ),4.1 9S.6 q6.7 97.% 97.7 98.1 q8.2 90.3 98.5(IE ;27 CI?.' '5. 73.7 78.3 8'.5 16.6 92.C 94.2 95.7 97.1 97.8 98. 98.4 98.b 99.0 99.24,E I I !, ?.! 6.5 13.1 7d.3 . t ".e 57. o 44. 3 A5.8 07.1 9q.0 98.3 94.7 98.9 99.4 99.6

,L 02.3 (8.5 73.7 78.3 83.5 6 S17 . 9.3 s.q 97.1 98.7 94.3 98.7 98.9 99.6 100.0

TOTAL lP.IIPIP OF O'SERVATIO.! 17!

K

6LOBAL CLIIOATPLOGV PRANCH PENCEN4TC INEQUENLY Of OCCUWPECE OF CEILING VERSUS VISIBILITY

USAFETAC FROM 606LY ObSLRWAI|ONSAIR .EA71rP SEVICEIMAC

TAICN NUMPER: 7152b7 STATION NAME: PtIAGARA FALLS ZAP Ny PCPIO0 OF RECORD: 78-87MCNTH: JAN HOURSILS11: 0100-0500

CEILING VISIBlILITY IN 5TATUTE "ILESIII I GE GE GE GE GE ,E GE GE GE GE rE GE GE GE GE GE

FEET I 1 6 5 4 3 2 1/2 2 1 1/, 1 1/4 1 '/4 5/8 112 116 1/4 0

;.0 C[IL I 17.1 !d.l 19.2 1.4 19.6 ).7 19.8 19.8 19.4 19.9 19.9 20.0 20.1 20.1 20.1 20.1

UE 1- 1a.3 19.8 20.4 20.5 20.P 2L.9 21.c 21.c 21.c 71.1 22.1 21.2 21.3 21.3 21.3 21.3LE 1 7C. l 1.3 19.8 20.4 20.5 20.8 1.9 21.9 21.' 21.r 1.1 21.1 21.2 21.3 21.3 21.3 21.3

LE I -D IF).6 '0.1 20o. 20.9 z1.1 31.2 21 .3 21.1 21.3 71.4 21.4 21.5 21.6 21.6 21.6 21.66E 14'0Cj 18.7 z3.. 20.9 21.0 21.2 21.3 21.4 21.4 21.4 21.5 21.5 21.8 21.7 21.7 21.7 21.7.E If L, I 1 . 21.1 21.7 21. 12.U 22.2 22 . 22.3 22.3 22.4 22.1 22.5 22.6 22.6 22.6 22.6

bE 0!:3CC 2C.3 -1.9 22.- 22.7 22.9 23.6 23 .1 23.1 23.1 23.2 2!.z 23.3 23.4 73.4 23.4 23.4GE 9"col Z3.9 22.S 23.1 23.2 21.4 23.5 23.7 23.7 23.7 73.8 25.8 23.4 74.3 74.0 24.0 24.0.r 6"0 I 21.9 33.9 24.5 24.6 24.8 24.9 25 . 75.1 25.1 25.2 26.2 25.3 25.4 25.4 25.4 25.4

GE 7P.,0l 72.q 24.8 25.5 25.6 25.P 25.9 26.0 26.C 26.0 76.1 26.1 26.2 26.3 26.3 26.3 26.3Or 610C0I 249 25..? 26.6 26.7 26.9 27.J 27.1 27.1 27.1 27.2 27.2 273 27.4 27.4 27.4 27.4

I.E 57f:0 I 24.( 36.6 27.2 27.3 27.5 27.6 27.7 27.7 27.7 27.2 27.8 28.0 28.1 26.1 28.1 28.1(A 4'; . 26.? 2.5 30.2 3U.6 !0.9 !1.0 31.1 31.1 31.1 31.2 31.2 31.3 31.4 31.4 31.4 31 .4GE 47,rI 2F. '1.2 31.9 32.6 32.8 !3.0 33 .1 53.1 33.1 33.2 33.2 33.3 33.4 33.4 33.4 33.4

$E 3 'i P.2 !4.1 39.9 35.9 36.1 16.5 36.6 36.6 36.6 76.8 36.9 37.0 37.1 37.1 37.1 37.1-E 3 Q01 34.5 40.1 4 1.2 42.5 42.4 93.3 43.4 43.4 43.4 43.7 41.8 -43.9 44.0 44.0 44.0 44.0

.E 2 Li 39.6 *.7.5 49.5 50.9 51.5 52.E 5Z.2 52.2 52.2 52.4 52.5 52.b 52.7 S2.7 52.7 52.7GF 2tC3I 46.1 2 6.b 61.4 63.4 64.9 65.8 66.9 67.c 67.0 f7.2 67.4 67.5 67.6 67.6 67.6 67.6L.E 19C01 47.4 8.3 62.C 65.1 66.7 67.5 64.6 64.7 68.7 68.9 69.1 69.2 69.4 69.4 69.4 69.43 I |UC 49.0 61.4 65.7 69.2 71.6 72.9 74.5 74.6 74.6 74.9 75.2 75. 3 75.4 75.4 75.4 75.4GE 1:1C1 49.4 62.6 67.2 70.8 73.1 74.6 76.6 77.0 77.C 77 3 77.5 77.6 77.7 77.7 77.7 77.7

CIE I1 .1 I3.4 64.4 69.0 73.0 76.2 77.6 80.4 81.2 61.3 A1.7 81.9 P2.0 82.2 92.2 82.2 82.3GE '3oI S-.( 64.6 69.7 73.7 76.9 7A. 6 61.4 82.2 82.3 P2.7 8-.9 $3. 0 4)3.1 3.1 53.1 83.2SE f ur1 5.9 65.1 70.5 74.9 78.9 P1.4 e4.7 85.6 b( . , P6.5 86.7 e6.e 86.9 86.9 86.9 87.0AE 7ol 1.0 P 5.4 71.C 75.6 7'.9 P2.G 86.1 88.1 8.2 88.7 88.9 89.0 49.1 89.1 69.1 89.2L.E 611 S2.0 2.S5 71.! 75.9 80.8 83.6 67.5 91.0 90., '1.4 91.7 91.9 91.9 91.9 91.9 92.0

LE s0Il 51. 6.5 71.4 76.5 81.3 r4.4 88.3 911.3 92.2 93.1 9.4 93.5 93.4 93.8 94.1 94.2AE 4rrI '1.- 65.7 71.6 76.7 21.7 A4.9 89.5 93.2 ia.3 95.3 95.6 95.1 96.3 96.1 96.6 96.7GE '10I 51.0 5,57 71., 7t.7 PI.P F5.2 9r ." 94.1 vs.3 16.2 92.6 96.8 97.2 97.3 97.7 97.8LE '13i 51. P 5.7 71.6 764.? 81.9 k . 4 'n.2 94.5 5.7 96.7 971. 97.2 97.7 91.8 98.5 98.6GE ICl 51., 65.7 71.(, 76.7 62.0 r. 7 4'.5 94.9 9(..! 97.1 97.6 97.8 98.5 98.7 99.° 99.9

,E 7 11.1 (S.7 71.6 76.I 2 . % 5. 7 90.5 94.5 46.1 Q7.1 97.6 97.8 98.5 08.7 99.4 100.0... . . . . . ..... . ° ... . . . . . . . . . . . . . . . . . . . . . . . ...................' ' .- .......... o° ° ............... .

10TAL NUMrLP PF 0 SERV8TIONS: 53 L

.4

F

GLOBAL CLIPATOLOGY RAtCr PERCLNTAGE FRLQLENCY OF OCCL'QEKCL OF CFILING VERSUS VISIBILITYLSAFETAC FROM I-OU"LY OBSERVATIUNSAI E .VHEp SERVICE/FA0

STATION NlIPi4LP: 7ZS287 STATICN NAME: N iA AP ALLS 1AP NY PPIOU OF PECOPO: 78-87MONTH: JAN POURSILSTI: 0600-0800

CE IL1': VISIrILITY IN STATIJTE MILES

IN GL b GE GE GE GE GE GE GE GE GE 0E GE GE GE GEFEET I 1c 6 1 4 3 2 112 2 1 112 1 1/4 1 X/4 5/8 1/2 '/16 1/4 0

. .................................................................................. ........................................

1,0 CrIL I 16. I.C 18.0 18.7 19.1 IV.5 19.5 19.7 19.8 19.8 19.8 19.9 19.9 19.9 20.0 2 .2

LE ,2 031 17. 19.4 29.5 22.1 20.5 21.9 22.9 21.1 21.2 71.2 21.2 21.3 21.3 ?1.3 21.4 21.617,F 18 5O T7S 19.4 23.c 20.1 20.5 20.9 21.9 21.1 21.2 1,.2 21.2 21.3 21.3 21.3 21.4 21.6

A Ii Lo1 17.7 19.6 2n.2 20.3 20.8 21.1 21.1 21.3 21.9 71.4 21.4 21.5 21.5 21.5 21.6 21.8Gr I CC IR1 . 19.V 23.4 20.5 21.0 21.3 21.3 21.5 21.6 21.6 21.6 21.7 21.7 21.7 21.8 22.0

UE 12-20 11.5 20.4 21.1 21.2 21.6 21.9 21.9 22.2 22.3 22.! 22.! 22.4 22.4 22.4 22.5 22.7

11 I Cc001 19. I 1.c 22.3 22.4 22.4 23.1 23.1 23.3 23.4 23.4 2'.4 23.5 23.5 73.5 23.7 23.9S 9%iI 'V.1 22.3 22.9 23.0 23.4 23.8 23.8 29.c 29.1 24.1 29.1 24.2 24.2 24.2 24.3 24.5S 8CCI 21.! 23.6 24.4 24.5 24. 25,.3 25.3 25.5 26 . 6 25.6 25.6 25.7 25.7 25.7 12.8 26.0.7 7t1j 21., 24.1 26.7 24.8 25.3 2 .b 25.6 25.6 25.9 25.9 2S.9 26.0 26.0 26.0 26.1 26.3

(.1 6ro 22.P 25.6 26.2 26.3 26.e 27.1 27.1 27.3 27.4 27.4 27.4 27.5 27.5 27.5 27.6 27.8

-F Ir l 2'.4 26.7 27.3 27.5 29.1 21.4 24.4 28. 6 28.7 78.7 2-.7 28.8 2.8 28.8 28.9 29.1UE 4! 1 25.5 ?.7 3Q.0 30.8 31.4 31.7 31.7 31.9 32.2 32.r 32.0 32.2 32.2 72.2 32.3 32.5

.,[ 4-31 25.7 '1.2 32.0 32 . 33. 33.7 3!? 34.0 34.1 34.1 34.1 34.2 34.7 34.2 34.3 34.5

FIE PI 24.!? '4.0 35.2 3S.6 36.5 37. U 37.C S7.3 37.5 '7.6 37.7 37.8 37.8 37.8 38.0 38.2UE 3fCC1 31.1 !7.3 38.5 39.5 41.6 41.2 41.! 41.6 41.9 42,0 42.2 42.3 42.3 42.3 42.4 42.6

:,E 2'C:I :s7 43.1 45.1 46.5 47.8 48.6 49.9 49.4 49.7 49.8 40*9 50.0 52.0 50.0 50.1 50.3GE 2-L71 47.' 1.3 54.9 58.0 6L.3 .1.9 62.7 63.3 63.7 63.8 64.1 64.3 64.3 64.3 64.4 64.6CE I1 J 41.4 02.4 56.3 59.6 61.9 63.5 f4.3 65.1 b5.4 65.5 66.8 66.0 66.2 66.0 66.1 66.3

LE 1'2( 1 4T. ! 6.0 61.0 55.1 14.2 7L.' 72.9 73.7 ?4.! 74.' 74.6 74.7 74.7 74.7 79.8 75.10 I 12L0I 44.1 r7.2 62.4 66.9 7).5 7!.7 76.2 77.2 77.6 77.F 70.2 78.4 79.4 78.4 78.5 78.7

uE I- ' 44.7 59.4 65.2 70.0 74.9 76.9 82.2 83.4 64.0 44.3 54 P 85.1 85.1 A5.I 8S.2 85.4E ''Ct1 4'%.? 60.C 66.2 71.2 76o2 '0.4 63 .5 95.1 85.8 P6.2 86.9 87.1 87.1 07.1 87.2 87.4

iE F02 14 .! 61.2 6 7.0 71.9 77.6 42.3 8.56 7. 3 88.2 98.6 99.4 89.6 89.6 89.6 89.7 89.9Lc 7L31

4C. 3 -0.3 67.1 72.4 18.1 I 2.8 86.2 88.1 89.! "9,7 9. 90. 90.8 90.8 9c.9 91.1

LO Pl1 4C .13.4 67.3 72.9 78.9 P4.5 84.2 92.5 91.8 92.5 9'.! 93.5 93.5 93.5 93.8 94.3

00r'1 0.7 6K;.5 67.4 73.1 79.2 .5.2 69.5 92. 2 93.4 04 94.9 95.3 95 .4 95.4 95.9 96.1.F 4201 45.3 51.1 67.5 73.2 79.4 p5.6 92.2 93.1 94.4 95.1 96.0 96.3 96.5 96.5 97.1 97.3,0 'l1 4 t,.3 tJ.V b3b 33.3 7 j . It.L 92.0 73.7 95.9 96.2 77.3 97.6 97.7 97.7 98.5 98.7iF C 4 .(I 3.9 67.7 73.4 79.6 it.2 91 .0 94. 95.7 'R.6 97.6 98.0 98.1 98.3 99.0 99.2or 1I- 4.4 ' :.9 67.; 73.4 79.7 8t.3 91.1 94.1 9S.8 6.7 97.9 98.2 98.3 98.6 19.6 94.8

LE r 4 .4 c".9 67.7 73.4 79.7 pt.3 91.1 94.1 95.F 96.7 97.4 98.2 99.3 99.6 99.8 IOC.0

TOIAL t.UMp Fr OF O:fR VATIOs : 030

.. ,d,

CLOBAL CLIMATOLOGY ORAC PEkCLNTAGE FsEQUENiCY OF OCCURDEKLE OF CEILING vFRSVS VISIBILITYuSAFETAC FROM HOURLY OBSEQVATONSAJA 6tA1HE 5ERVICE/MC

STATION NUMTLR: 775287 STATIc'N NAME: NIAGARA FALLS IAP NY PEOIOD OF RECORD: 78-87MONTH: JAN HOURSILSII: 0900-11CO

CE ILIN6 VISIRILITY IN STATUTF MILES

IN I E G GE G GE GE GE Gr GE GE GE GE Gr GE GE GEFEET I1c 6 5 4 3 2 1/2 2 1 112 1 1/ 1 3/4 518 112 '/16 1/4 0

................................................................................. ........ ... .............. ..................

NO CEIL 1 16.6 18.4 19.2 19.9 20.4 :c.6 29.6 20.b 20.6 70.8 2r.8 20.8 20.8 20.8 20.9 2U.9

ur 2000c1 11.1 21.1 21.2 21.8 22.4 22.7 22.9 22.A 22.8 22.9 27.9 22.9 22.9 22.9 23.0 23.0[t 18000 1.3 20.4 21.5 22.2 22.7 23.C 23.1 23.1 23.1 23.2 2'., 23.2 23.2 23.2 23.3 23.3tE 1 WGO 19.e 21.0 22.0 22.7 23.2 23.5 23.7 23.7 e3.7 23.8 21.8 23.8 23.8 23.8 23.9 23.9GE 14! 0r 10.0 21.3 22.4 23.0 23.5 IN. u 2.1 24. 1 24.1 24.2 24.2 24.2 24.2 24.2 24.3 24.3br 12r1o2 21.C 22.4 23.4 24.1 24.6 25.1 25.2 25.2 25.2 25.3 25.3 25.3 25.3 25.3 25.8 25.8

GE 10202 21.' -4.3 25.6 26.2 27.C 27.5 27.6 27.6 27.6 7.7 27.7 27.7 27.7 27.7 27.8 27.8bE 90C31 21.t ?4.7 26.0 26.7 27.4 2E.; 28.1 28.1 28.1. 26.2 29.2 28.2 28.2 28.2 28.3 28.3GE 6C0101 23. 26.Z 27.

6 28.3 29.0 29.6 29.7 29.7 29.7 79.8 29.8 29.8 29.8 29.8 29.9 29-9

GE 720C 23.2 ?6.9 28.4 29.0 22.9 31.4 30.5 T0. , 30.5 30.6 3n.6 30.6 33.6 30.6 30.8 30.8GE 500c 24.u 77.8 29.4 3G.1 30.9 !1.4 31.S 31.5 31.5 71.6 31.6 31.6 31.6 31.6 31.7 31.7

.E SC00 24.4 28.7 30.3 31.0 31.9 32.6 32.7 32.7 32.7 12.8 37.8 32.8 32.8 12.8 32.9 32.9GE 81212L2 24.9 ".7 31.9 12.9 33.9 7u.5 38.6 34.6 34.6 34.7 34.7 34.7 34.7 7 38.8 388uE 42 20 I 21.6 11.C 33.3 34.4 35.8 :t. 3 36.7 36. 7 36 7 6 36.8 36 3636.8 '6.8 36.9 36.9E 3 CD 26.9 !3.1 35.7 37.3 38.5 39.7 0.l 40.2 40.2 80.3 4n.3 80.3 40.3 40.3 40.0 40.8

GE 1L0;1 27.9 'S.7 38.6 40.9 42.9 43.7 44.1 44.2 44.2 84.3 88.3 88.3 48.3 4.3 48.8 88.8

,l 2. 0 1 31.3 42.5 44.2 47.4 89.5 51.9 52.7 53.1 53.1 S3.5 5'.7 53.7 53.8 53.8 53.9 53.9UE 22912 33.5 43.b 48.2 !1.8 54.6 58.4 60.1 60.9 61.0 61.6 62.0 62.2 62.3 62.3 62.8 62.8

GE 1S 1 33.7 44.2 48.e 52.7 55.6 59.5 61.3 62.3 62.4 63.1 63.5 63.? 63.8 63.8 63.9 63.9jr l002 35.8 47.8 53.4 58.3 61.9 67.1 70.3 71.8 72.2 73.2 77.8 73.9 74.0 78.0 78.1 78.11,E 123g 35.7 49.1 55.6 61.1 65.7 71.9 75.4 77.7 7R.5 79.7 89.5 80.6 80.8 80.8 80.9 00.9

4GE 1%C1 34.3 sg.2 57.1 63.5 68.5 75.3 79.5 82.2 63.1 65.1 86.7 87.1 87.3 97.3 87.8 87.8LE sIr 36.5 53.4 57.3 63.9 69.0 75.b 80.0 32.b 83.9 o9.9 87.6 88.1 88.3 P8.3 88.8 88.8

jE Ft.0 3t.1 50.6 57.8 64.6 70.2 77.4 61.8 8. 7 65.9 98.2 91.1 90.6 91.1 91.1 91.2 91.2GE 700 !6.6 s0.8 58.G 65.1 71.1 7E.4 3 . 86.2 87.5 P9.8 91.9 92.5 93.0 93.0 93.1 93.1CE 6 C 36.6 C.q 56.1 65.3 71.4 7E.7 83.4 q6.7 88.3 90.8 93.1 93.8 94.3 94.5 98.7 94.7

jE 1 36.6 51.9 58.1 65.5 71.8 79.6 84.8 88.2 90.0 02.6 99.2 96.1 96.P 97.0 97.2 97.2GE

4 c 1 36.6 51.L 58.2 l 5.6 71.9 79.7 84.9 88.6 90.5 3.1 qr .9 97.0 91.7 98.0 98.2 98.2

CE !C I 36.6 1.U 58.2 65.6 72.0 C.u 65.4 89. 91. 03.5 96.6 97.6 98.5 98.8 99.0 99.0(.E C)I 3F.6 91. 58.2 65.6 72.0 'C.L 85.4 89.1 91.1 3.7 96.7 98.1 98.9 99.5 99.9 99.9GE 1,01 3(.6 r1 ., 5q.2 65.6 72.0 uD.O 65.4 R9. 1 91.1 '3.7 9f.7 98.1 98.9 99.b 100.0 100.0

,E 2 36.6, 21.0 5 .2 65.6 72.0V ['. L 69.4 99.1 91.1 93.7 96.7 98.1 99.9 99.6 100.0 100.0

IOTAL NPPQ OF O"SERVATIONS: 933

iL36AL CLIATOLOb 4RHANCH PENCENTNGE FREGUENCY OF OCCURDEiCE or CrILING VERSUS VISIBILITYuSAFLIAC rgOM HOUOLY CbSERV8TONS

AIR uIATISFP SERV1CLIMAC

STI11ON Nt'P-E: 7;5?87 STA11CN NAME: NIAGARI FALLS 3AP N;Y PEQIOD OF RECORO: 78-87IONT: JAN FOURSILSTI: 12C0-1'00

CE IL11.G VISIP IL7Y IN STAIuir MILLSIN I rE GE GE laE GE (E GE GE (,L GE GE G[ GE GE GE GE

FEE r Ir c -i 4 7 2 1/2 2 1 1/2 1 1/4 1 3,4 5/8 112 16 1/4 0... . .. . .. .. -. .. ....° ... . . . .... .. .. . . . . . . . . ...... . . . .° .. .. .. .. ..... . .... .........

NO CEilL 1 17.v 7J.9 21.7 22.0 22.5 225 27.5 22. 22.5 22.5 27.S 22.5 22.5 22.5 22.5 22.5

E !CrvCI 2-.9 24.3 25.2 25.7 26.1 26.1 26.1 26.1 26.1 2b6.1 26.1 26.1 26.1 26.1 26.1 26.1.A I a UP 1 21. "4.9 25.8 26.3 26.8 26.8 26.3 26.8 26.8 76.8 26.8 26.8 26.8 26.8 26.8 26.8rE 166t;7 21,8 5:3 26.1 26.7 27.1 27.1 27. 7: 27.1 21.1 27.1 27.1 27.1 27*1 27.1 27.1 27.1I.E ' 0CI 22.( 26.2 27.1 27 6 24.1 2L.1 28. 1 28 24.1 2.1 2A.1 28.1 28.1 28.1 28.1 28,1.E 12C' 1 21.7 27.4 28.3 28.8 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2

rc 10cr.0I 24. I Z8.6 29.5 30.0 30.4 31.4 39. 20.4 30.4 ;C.4 31.4 30.4 30.4 30.4 30.4 30.41.E 901UI ZZ.3 28.6 21.5 30.1 30.5 30.5 30.5 30.5 30.5 30.5 3.S 30.5 lo.S 30.5 30.5 30.51E 81 CO 25.f, -. 31.2 32.2 32.6 !2.6 32.7 32.7 3 2.7 32.7 37.7 32.7 32.7 32.7 32.7 3

GE ?r nl 2S.P '1.3 31.4 32.4 32.6 32.L 32.9 32.9 32.9 32.9 32.9 32.9 32.9 32.9 32.9 32.9(E 6ru 1l 26.1 '3.8 31.8 32.8 33.3 33. 3 33.4 33.4 33.4 73.4 3.4 33.4 35.4 3.4 13.4 33.4

1,E 't C 26.5 31.9 3 3. 34.3 34.8 !4.6 4.9 399 3.9 34,9 34.9 74.9 39 34.9,E 4'-3d1 27. A '3. 34.2 35.9 36.5 !, 5 36.6 36.6 36.6 36.6 36 36.6 36.6 36.6 36.6 36.6GE 4'.C 28.5 !4.7 35.6 38.1 38.p ZE.9 39.C 39.0 39.) !9.c 3*.0 39.0 39.0 79.0 39.0 39.0GE 3' lU 1 29.1 76.3 38.0 40.5 41.4 41.c 41 .9 42. C 42.0 42.C 42.0 42.0 42.0 42.0 42.0 42.0I.E 3CUCI 31.2 40.3 42.7 46.0 47.1 47.7 48.tl 48.2 48.2 4F.2 4q.2 48.2 48.2 48.2 48.2 48.2

3F 23Ci 3S.3 46.1 49.4 53.0 64.7 5E. 9 66.3 56.9 57.0 S7.0 57.C 67.0 57.0 S7.0 57.0 57.0A.E Z-JC1 38.E 3.4 S4. 3 59.1U 61.4 6-.1 65.1 65.7 65.8 66.1 64.3 66.3 66.3 66.3 66.3 66.3uE l62l 37.1 01.7 55.6 60.5 b3.3 6C.3 67.4 68.2 68.3 68.6 68.8 68 64.8 68.8 68.8 68.8LE 1 c30 41.1' '5.7 63.C 66.7 70.6 74.5 16.8 79.2 74.5 78.9 79.5 79.6 79.6 79.6 79.6 79.6E 12001 41.

7 'j7.1 61.7 69.2 73.8 78.4 ac.6 82.5 82.9 4. 64.6 84.8 94.8 R4.8 84.8 84.8

I.E jr LO 4 1. r7.8 62.b 7.6 75.9 c1. 2 84., 86.5 87.3 '8.4 89.6 89.8 89.4 89.8 89.8 89.8CE -CO 41.9 7.8 62.9 70.4 76.0 01.3 84.4 46.7 87.2 88.7 80.9 90.1 90.1 00.1 90.1 90.1bE 'LPI 41.9 57.8 67.1 71.1 76.3 P1.7 R4.9 q7.2 37,7 89.5 9".R 91.u 91.0 91.0 91.0 91.0i4L 7C01 41'. '7.8 63.5 71.6 77.? E3.2 86.6 99.4 9c.2 q2.U 93.4 93.8 94.0 94.0 94.0 94.1LE 6a1 41 . 07.8 63.5 71.7 77.E F3.1, d7.4 90.4 91.4 13.4 95.4 95.7 95.9 96.2 96.2 96.3

GE E.,I 41.9 57.8 63- 71.8 17.8 P4.3 49.2 91.3 92.3 04.3 96.2 96.6 96.8 97.2 97.2 97.3GE Q 4i 1.3 -7.8 63.5 71.8 78. 4. 48.8 91.9 93.0 Q5.1 97.0 97.4 97.7 98.3 98.3 98.4UE 30121 41.0 '7.8 63.5 71.9 7R.1 8 4 6 fig1 02. 3 93.3 95.7 97.7 98.3 98.6 99.1 99.4 99.5GE 7I 41. S 57.8 63.s 71.9 79.1 4. 89.1 92.3 93.3 05 7 97,7 98.5 98.8 99.5 99.8 99.9IE 1I1 41.5 7,. 63.5 71.9 78.1 4. 6 d9. 92.3 53.3 95 7 97 7 98.5 94.8 99.5 99.8 1OU.0

bI 'i 41." 07.a 63.5 71.9 19.1 04., 49.1 92. 3 93.3 95.7 97.7 90.5 98.8 99.5 99.8 100.0

tOTA NUMFILP (IF O(SERVAVEOflS: 93

_Ai

GL~bAI. CLI"AICLOGV PRANCH PENCLNIALE fERELUEt4C3f OF OCC #1606 OF tEtiME.b VERSUS VISIBILITYuSAFE7AC FROM P.OUR1 Y ObSER4ATIONsAIR WEATHER SERYICE/MAC

STAT1ON NUPB8817 1S7F7 S741ICN4 NAME: NIAGARA FALLS 380 NY PEPICO CF RECORD: ?8-67MONTI1-: JAN I-OURSILSTP: 1500-1700

.. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... .......

CEIL1P.G, VISIFILITY IN STATUTE MILESII I01 GE GE of GE LE G E G E GE GE GL. GE G E GE GE G E

FET 1 1" 6 S 4 3 2 112 ,' 1 112 1 1/4 1 3/4 5/6 112 S/16 1/4 0.............................................................................................................................................

;-0 CL I 1 7.7 3:.9 21.5 21.9 22.5 22. 5 22 .5 22Z. 5 22.5 22.5 22.S 22.5 22.S 22.5 22.5 22.5

GE 2(XUP0 2,1.1 24 .3C 24.6 25'.1 25-F 25.6 25.6 25.6k 25.8 25.8 2 .8 25.8 25.4 25.8 25.8 2S.8L.E 18'GC z 23.? 7 4. 1 24.7 25.2 25.9 75.4 25.9 25.9 25.9 25.9 25.9 25.9 25.9 25.9 25.9 25.9uC 160001 20.! 24.2 24.b 25.3 26.U 26.0 26.C 26.3 j. 7. 26 .0C 26 .0 26.0 26.0 26: 26.03E 14C41 21 .2 25.2 25.11 26.3 27.1 27. 1 27.1 27.1 ~7.1 ?7.1 27.1 27.1 27.1 27.1 1 27.1

GE1~05 . 7. 42 28.7 29.S 29. 2.29.9. 2 9.5 29S 4. 29.5 29.9 29.5 29.5 29.5

GE irCCOO 214.4 24.5 29.1 29.7 3C.4 !L- 4 30.4 In. 4 30.5 30.5 30.S 30.5 30.5 10.5 33.5 30.5LE 9rL0 1 24.6 25.9 29.6 30.1 30n. l 7(l.9 30.9 3n.9 31.0 31 .0 31.0 31.0 31.0 31.0 31.0 31.0GE bCO301 26.? !C.6 31 .3 31.9 !2.?7 32. 7 32.7 32.17 32.4 32.8 37.8 32.8 32.8 72.8 32.8 32.8(.E loCCl 27. 1 31.6 32.3 32 .9 33.P 33.6 33.9 33.6 113.9 '3.9 33.9 33.4 33.9 33.9 53-9 33.9uE b[ O01 21. 7 '21.4 33.0 33.7 34.5 34., 34 .5 34.5S 34.6 '4 .6 34.6 34.6 34.6 34.6 34.6 34.6

GE 5, -LI 2E.7 13.9 34.7 35.b 36.6 36. 7 36 .7 36. 7 36.8 36.8 36.8 36.8 36.8 36.8 36.8 36.8GE 4'LC 3 C. 4 ?6.1 31.1 ?71.8 39.' Is I5q.1 39. 991 19.2 3q- 34 .2 39.2 39.2 39.2 39.2 39.2GE 4 r00 I In. 37. 3 38.5 39.5 40.6 -1. 2 41.2 41.2 41. 3 41.3 41.3 41 .3 41.4 41.4 141.4 41.4G.E 3.1 3 7.8 '9.9 41.3 42.3 41. 5 44. 1 44.1 44.2 44. 3 44. 3 44.3 44.3 44 .41 44.4 44%.41 f 4 . 4* E 3 00I 35.9 44.1 4C.1 47 .2 43.9 49. 7 49.9 53.0 50.1 50.1 513.1 50.2 50.9 S0. 3 50.3 50.3

LE 20071! 39.8 48.9 51 .2 53.7U 55.5 56.9 57.3 57.6 57.7 57.7 57.7 57.8 58.C 58.0 58.0) 58.0*GE 2011. 43S.3 54.4 51.4 60j.0 6 3.6P 65.5 66.3 67. 1 67.5 67.5 67.6 67.7 67.41 67.8 67.8 67.8

GE IFL31 44.r 015.4 59.1 61.9 65.9 61.17 63 .7 69.6 7C.0 70. 1 7n.? 70.3 70.4 73.41 7t,.% 70.4ut 1 2 44. a 9. 3 62.4 65:8 71.:0 7!:.4 75.:2 76.1 76.6 '6.7 77. 1 77.:2 77~4 7. 77.5 77.5G rE 1720 45.2 C 1 6 3.4 67. 1 3.9 76.8 78.9 R3.2 81. 41.t2 81. 82.t9 82.2 823 02.3 82.3

(' 1020 I 4S. ' l 59.4 64.2 69.2 75.6 79.2 82.0 83.5 is4 .4 '9.1 b6.0 P6.1 86.S R6.6 86.6 86.7UE 1;0 4'nlo. 4 59.4 64.3 64.4 76.1 79. A 82.7 44.2 85. * .461 87.3 87.2 87.5 87.6 87.6 87.7G E 8 201 45.s S9. 5 64.5 69.7 76.8 01.z 44.0 M45.6 86.9 87.8 80.2 89.6 89.9 93.0 90.0 90.1

* E 7 L05 45. F 59.5 64.5 70.1 77.4 931. 8 5.1 87.5 6q.8 49.9 91.6 92 .9 921.3 92.4 92.5 92.6tic AUc i 45.51 t9.5 64.5 71-2 77.5 12. 5 b66.0 8.4 89.8 91.4 9T. 3 93.8 940.6 94.9 95.] 95.4

SLOI10 45 58. g5 6 46 10. T:3 7 7.6 ;2:.7 a86. 88. 4 90.3 : 92.4 94.7 I 95.:3 96:.3 96.9 97.2 97.41* E 41 C 5 59.5 64 6 10.4 77.8 ~3 1 87.3 897 1. 93. 95.9 96.5 97.5 98.2 98.:5 98.8

LI~E l10 I 4 ?5 4* 64.6 7%.4 7 7.4 F.3. 1 87.3 99. 7 91 .4 43.5 95.9 96.5 97.s 96.3 48.6 48.9!iE 7 c.31 45.1 1.9.5 64.6 70.4 77.P Z 87.1 89. 1 91.4 1)3.7I 96.3 96.6 97.6 98.4 98.8 99.4bE 10 Go45".5 S9.5 64.6 70.4 11.8 '3.1 67.5 8 9. 7 4,1.4 '33.7 96.3 96.6 97.8 94.6 99.0 99.7

-,E f, 4 C59.5. 64.6 70.4 1.-9 P1 p1 8739. 1.4 )S*7 96.0 96.6 97.8 48.6i 99.0 100.0.............................................................................................................................................

10A14 UHRE9 OF OPLER VAEIONS: q31'

IL

. . .

- A

pT

GLOLAL CLIMATOLOGY BRANCH PENCLNIA. FPE(UENCY OF OCCUPPENCE OF CEILING VERSUS VISIBILITYuSArLT AC FROM FOUPLY 06SLPVATIONSAIR I.LaT [R SERVICE/PAC

;

!STATION tNuMPER. 725287 STATION NAME. NIAGAnAJ FALLS TAP NY PERI0OD OF RLCORO: 18-87

MONT.: jAN

IOURs(LSTI: 1850-2000

C[XL~r G ISIPILIT9 IN STATUTE MILES,

IN U G GE G[ f. F UE GE G L Gr

GE GE G E GE GE GE GE GE 'FLLT | 1 5 4 3 2 112 2 1 11Z 1 1/4 1 314 5/8 112 5/16 1/4 0

;.0 CEIL I 19.P 21.9 21. 22.. 22.3 22.3 2.! 22.4 22.4 72.4 22.4 22.4 22.4 22.4 22.4 22.4

AE 3tt03 2i.r -3.7 2 3.8 24.0 24.1 24. 1 24.1 24. z 24.2 ?4.2 24.2 24.2 24.2 24.2 24.2 24.2 -E 18r r l 21.- 23.7 23., 24. 24.1 .4.1 24.1 74.2 24.- 24.2 24.2 24.2 24.2 24.2 24.2 24-2

bE 16rfnl1 21.1 33.8 23.9 24.1 24.2 4.2 24.2 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 24.3 pGt 14-Cnl i1.( 24.5 24.. 24.8 24.9 24.9 24.9 25.1 25.1 75.1 2'.I 25.1 25.1 25.1 25.1 25.1 rGE 1201.0 1 2!.3 26.2 26.3 26.6 26.7 26.7 26.7 26.6 26.9 2b.6 26.8 26,8 26.8 26.8 26.8 26.8

oE I fLoI 24. 7.1 27.2 27.4 27.5 27. 27.5 27.6 27.6 77.6 27.6 27.6 27.6 27.6 27.6 27.6GE 9rci 2 2.' 27.4 27.5 27.7 27.8 27.6 27.6 28.0 28.0 26.) 2q. 28.0 28.0 28.0 28.0 26.0GE arcr , 21,. 29. 29.5 29.7 29.4 29.6a 29.8 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9 29.9

tE 7UC31 27.4 L. 6 31.8 31. 31.1 31.1 31.1 31.2 31.2 31.2 31.2 31.2 31.2 1.2 31.2 31.2.E 63;i 29.4 31.6 31.8 32.3 32.4 32.4 4 72.5 32.5 !2.5 37.5 32.5 32.5 32.5 32.5 32.5

u, 5-Ccc 30.f. !4.4 34.7 35.4 3 , 35.5 35.5 35.6 35.6 35.6 35.6 35.6 35.6 75.6 35.6 35.6LE 4' LI 3 !. 3!7.7 3.1 38.7 39.0 !9.2 39.2 39.4 39.4 39.4 39.4 39.4 39.4 !9.4 39.4 39.4(,E 4rC 1C 35.2 !9.9 43.4 41.4 41.7 41.. 41.9 42.0 42.0 42.C 42.0 42.0 42.0 42.0 42.0 42.0(,C 3€.Gf: 37.8 92.9 43.9 44.6 45.2 41.4 4S.4 45.5 45.S 45.5 41.5 45.5 45.5 4S5S 45.5 s.5(,E 3rP 41.' 48.3 49.2 SL.S 50.A E1.2 51.2 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3 51.3

.E 2' 1:3 4! . 937 b6 . 58.0 .8.9 q. 9 6.1 60.3 IC,3 60.3 63.3 60.3 60.3 60.3 60.3 6C.36E 2t, 1 59.1 (:.1 63.7 66.0 E.1 69.4 69.8 70.0 70.1 70.1 7 .1 70.1 70.1 70.1 70.1 70.1

IE I CC 5,.7 f3.a 66.2 68.8 70.9 12.2 72.6 72.& 77.; 72.9 72.9 72.9 72.9 72.9 72.9 72.9I- 1L t 4.- 95.7 69.5 72.9 75.S 77.1 77.9 7b.4 79.6 78.7 78. 78.8 78.8 78.8 78.8 78.8

IE I 'L" 55.4 67.7 72.2 76.3 79.1 1. U 81 .3 92.4 02.6 92.7 82.9 P2.9 82.9 P2.9 82.9 82.9

UE lf O] .7 68.4 73.5 78.5 61.8 94.1 85.3 86.0 86.5 47.1 87.4 87.4 87.4 A7.4 87.4 87.4LE 00 I 5. P C8.6 73.9 79.f 82.6 e.. 8 86.0 11..9 d7.3 A.1 6.5 88.5 68.5 R8.b 88.6 88.66 .E Icn 56.7 (9.C 74.5 79.9 63.4 PC. 2 87.9 99.. L b9.7 90.4 9n.9 90.9 90.9 91.0 91.0 91.0G' 7c| f.3 (9.1 74.7 40.3 P4.3 -7. C 89.3 9l ,5 91.2 92.2 92.6 92.6 92.6 02.7 92.7 92.76E 6 .,I 5 ,5 69.2 74.A 8C. 64.4 '7.1 69.6 91.3 92.0 03.1 97.9 93.9 93.9 04.0 94.0 94.0

bE 33I 56.1 (7.2 74.9 0.6 84.9, F7.7 9.4 72.3 93.1 4*.2 95.4 95.4 95.7 95.8 S5.9 96.0LE 4UA 56.5 69.2 74.9 8c.8 P5.2 a.3 91.2 93.1 94.1 95.3 96.6 96.6 96.9 97.U 97.2 97.4 4.

Gt !il1 ,6.5 9.2 74.9 P0. 2 R . 3 91 .3 93.3 49.3 31.5 91.9 9b.9 97.% 97.5 97.8 98.1(,E 'L! cI f . i, It., 80.9 9.6 9h.7 91.8 73.9 94.8 99,o 97.4 97.5 98.1 98.5 94.8 99.0GE L 1 S6.5 69.2 75.1 8O.9 35.4 ?b. 7 91.6 73.9 94.8 06.L 97.5 97.6 98.2 98.7 99.0 99.7

E ')I tf.' 69.2 71.I 8.9 P5.4 4.7 91.8 93.9 94 f qb.c 97.5 97.6 98.2 Q8. 7 99.0 100.0

.................................................................................................................................................

TOTAL 5M18L£? OF OLSERVATINS: 931;

iL

, , , "''

CLOCAL CLIMATOLOGY ORANC' PEKCENTAGE FREQUENCY OF OCC1IROE&CE of CEILING YERtUS VISIBILITYLSAF ET aC FROM lfOURLY O6SERVATIONS;:':

ST7ION NUPPER: 775267 STATION NAME: NIAGARA FALLS lAP PY PEPIOD OF RECORD: 78-87

MONTH: JAN HOURSILSTI: 2100-2300

LE ILI'4G VISIVILITI IN STATUTF FILES

1 N ft CL GE GE cE GE bE GE GE GE GE GE GE GE GEFEEI I I r 6 5 9 ? 2 112 2 1 112 1 1/9 1 3/4 5/8 1/2 5/lb 1/9 0

400 CE|L 1 16.2 18. 18.7 18.9 18.9 IT.9 1P,9 19-1 19.2 19.2 1 .2 19.2 19.2 19.2 19. 19.5

UE . OcOI 17.0 19.7 21.0 20.2 2n.2 20.2 20.2 20.4 20.5 2U.5 20.5 20.5 20.5 70.5 20.6 20.8E 18CDO 17. !9.7 20.0 20.2 2r.2 Z. 2 20.7 20.4 20.5 20.5 21.5 2D.5 20.5 20.5 20.6 20.8

GE 162fl 17.7 19.9 20.2 20.4 20.4 C. 4 2.4 2C.6

20.8 20.8 20.9 20.8 20.8 20.8 20.9 21.0U.E 147GOI 17.8 0.3 20.6

2C.

9 20.9 20.9 2C.9 21.1 21.2 21.2 21.2 21.2 21.2 21.2 21.3 21.9

"E IZ2COI 1-.7 21.9 21.7 21.3 21.9 23.9 21.9 22.2 22.3 22.3 27.3 22.3 22.3 22.3 22.9 22.6

uE :or2cl 11.6 22.9 22.7 22.9 22.9 22.9 22.9 23.1 2.2 23.2 23.2 23.2 23.2 23.2 23.3 23.5.E Sr G 2.1 73.1 23.4 23.7 23.7 273.7 23.7 23.9 29.0 79.0 29.0 29.0 29.0 29.0 29.1 29.3.E 8rLl 21.4 74.5 24.8 25.1 25.1 75.1 2 ,;1 25.3 25.4 25.9 25.4 25.9 25.4 25.9 25.5 25.7UE 7-C)I 23.1 26.3 26.7 26.9 25.9 9a.s 2f.9 27.1 27.2 27.2 27.2 27.2 27.2 27.2 27.3 27.5

*E 6rG0 1 24.6 28.0 28.3 28.6 28.6 z. 6 28.6 28.6 28.9 28.9 29.9 28.9 29.9 28.9 29.0 29.2

L.E SOUG1 26.8 z;.9 3.1L 3.5 31.7 !1.2 31.7 31.S 32.C 32.0 32.0 !2.0 32.0 32.0 32.2 32.9.E 952CC 2q.2 !3.7 39.3 34. h 35.9 15.9 3%.9 35.6 35.7 35.7 3S.7 35.7 35.7 35.7 3S.0 36.0.

E 4luoJ 31." '5.6 36.7 37.5 34.2 3e.2 38.2 38.9 38.5 !8.5 3q,5 36.5 38.5 38.5 38.6 38.86E 3S01 39.1 !9.6 90.9 92.0 92.7 92.7 92.8 93.0 93.1 93.1 93.1 93.1 93.1 93.1 93.2 93.9

3,t sroo 3qt. 45.2 9 7, 98.7 9.8 4S.8 5.0 50.9 50.5 50.5 5n.5 50.5 50.5 90.5 50.6 5G.9

GE 2 CC1 49. 2.9 55.7 57.6 58.8 50.9 59.9 59.6 60.0 60.0 6r.1 60.1 60.1 60.1 60.2 60.9GE 2' l1 49., 61.2 69.8 67.5 6A.9 70.2 7S.9 71.9 71.6 71.6 71.7 71.7 71.7 71.7 71.8 72.0"E IP.0 5I . 62.7 66.5 69.2 7q1.8 72.0 72.8 73.3 73.5 73.5 7'.?7 73.7 73.7 73.7 73.8 7..0GE IrLoI S3.2 65.9 7C.6 79.3 76.5 78.0 78.8 79.7 79.9 79.9 80.0 80.0 60.0 80.0 80.1 80.3

tE 1 1 5 3.5 67.0 72.- 75.8 7t.3 60, 1 81.1 82.0 82.5 82.5 87.6 82.6 82.6 82.6 82.7 82.9

GE 54UI0.6 ,88.2C 73.5 77. 7 h 1.1 3. C 69.1 85. 3 8-.8 05.9 86.1 86.1 86.1 86.1 66b.2 86.5(' :,lr I 4. 7 89.1 73.8 78.9 El.7 3.9 85.2 F86.b a 7.1 7.Z 87.9 87.9 97 . 07.4 87.5 87.7 .SE L L OI 5. 1 18.7 79.6 79.5 83.1 5.4 87.0 88,7 69.2 99.5 bq.7 89.7 89.7 P9.8 89.9 90.1EA 7CoI s.1 C8.7 79.8b 80.2 F9.3 PC.7 b8.5 90. 91.1 71.9 91.6 91.6 91.7 91.8 91.9 92.2;,r fE t , 1 !l. f8.7 79.8 80.9 f,.8 6 7.6 89.7 91.8 92.6 "3.2 93.s 93.5 93.7 93.8 93.9 94.1

E to.7 ?. 68.7 79.9 80.5 89.7 -8.L 10.9 q2.7 93.5 99.2 99.7 99.7 99.8 95.1 9S.2 95.9"u E CC1 51.1 c8.7 79.9 8L.9 65.5 ".9 91.9 93.7 94.6 s.9 9C.0 96.1 96.3 96.6 96.8 97.0

7. 'UGI 50.1 8.7 79.9 V0.9 R5.6 85.1 91.7 '9.1 95.5 96.2 97.2 97.3 97.5 97.8 98.1 98.3LE :0Gl S... I f.6 75.2 81.2 86.0 ms.7 92.3 ?9.7 96.2 97.0 99.1 98.2 98.6 99.0 99.9 99.6,E lIl ',I .s.8 75. 81.2 86.v h;.7 92.3 99.7 96.2 97. 99.1 98.3 99.7 99.1 99.s 99.7

E -l 0.1 69.8 75.2 P1.2 86.L 9i. 7 9?.3 99. 1 96.2 97.2 98.1 98.3 98.7 09.1 99.6 100.0

...............................................................................................................................................

TOTAL NhUHFEq OF 0"SCRVATIONS: qo

'5L

LOAL CLIOMAGLOG PRANCH PEi-CENIAG[ FFEQUENCY OF OCCUPPENCE OF CEILING vEkSUS VISIBILITYusArLiAc FROM OU9LV E 5R VATTONSAIR liAtIEF SERVICEMAC.

5TATION NUM3EP: 7-5287 STATON NAME: NIAGARA FALLS IAP NV PEPIOO OF RECOPO: 78-87MONTH: JAN HOURSILSII: ALL

CEILING VISIPILITY IN STATLT MILESGE I.E GE GE GE CE GE GE GE 6E GE GE GE GE GE GE

FEL I 1n 6 5 4 3 2 112 1 1/2 1 114 1 3/4 518 1/2 5/16 1/4 0

NO CE L I 7.n 10.3 19.1 2C. 20.9 2C. 6 20.6 20.7 2203 2C.8 2r.8 2 0 30.8 2U.8 20.8 20.9

GE zcrcriI lP.7 71.,2 21.9 22.1 22.5 ;2, 6 22.6 22.,? 22.7 22.8 22.6 22.8 22.8 22.8 22.9 22.9LE I aC 0o 1qA 10 22 .0 22.3 22.6 22.,7 22.7 27. F 22.9 12.,9 2Z.9 22.9 22.9 22.9 23.0 23.1

CE I6rcl 1q.1 21,6 22.2 22-5 2. Z9 23.,7 23. 1 2 ?. 1 23.1 23.1 23.2 23.2 23.2 23.2 23,3 i

UE 14CCC 19. 2 21 22.7 Z3.0 23.3 Z3, 4 23,S 23.5 Z3.6 23.6 23.6 23. 7 23.7 23.7 23.7 23.6UE 121 r, 6 73,3 2 3 9 114.2 24.5 24.7 24.7 24. 8 24.8 24.9 24.9 24.9 24.9 24.9 25.0 25.00"

U E IGC CU I .,5 74.5 25.1 25.4 k , 25.9 25.9 26.0 26.1 26.,1 26.1 26.1 26.2 26.2 26.2 26.3

GE 9'C 0 31.3 24.9 2.7 15.8 26.2 2C. 3 26.4 26.5 26.5 26. 1 21.5 2616 26.6 .5 41.6 126.7S,F SICCI 21.2 76.5 27-2 27.5 27.9 116.0 2 .1 28.2 2R.2 28.3 2-.3 28.3 29.3 28.3 28.3 29-4

LE 7"ZO 24. f! 7:3 2 a 0 28,q . 2fi,:9 29:C 29:C 2 9:1 29 1 2 90:1 29:2 29.2 29:2 2 9:2 29.3 '

GE 3rCl 4, 49 23.1 29 2.29 9s1 334. 30 7 43 3 3 303 303 30 30.5

L.E 5CLOI 26.2 40.0 30.8 31.3 34.1 32. C 32 5. 32 6 32.2 32, C.2 56.2 32.3 32.3 32.3 3.31,E 2' COI 7 1 2.6 33.1 14.4 35.0 5. 35. 35.3 356. 65.6 6 3 7.4 35.5 67.5 35.5 35.5 6 6.6•E I9I 29.7 !4.3 3 5'.5 56-5 37.2 37.b 37.6 37. 7 37.7 37.8 37.8 37.8 37.8 37.8 3.9 379GE 31'CC 31.3 7.2 38.7 !9.9 0.6 11.0 71.1 76.2 76.5 6. 771 .5 7.1 77.1 1.5 17.6 7. 3

3 E 3tooL 39. (1.9 63.7 45.e 46.2 73. 8 7. 7.2 79. 3 4. 81.0 61.4 87. 67 . 7.5 . 7.6

LGE 2' ;J .7. ,C 50.5 52. 54.1 5.2 72.5 .5 56.4s 56.0 56.1 5. 56.2 86.2 *6.2 56.3 6.3*E 2 C0 47.7 6.7 .3 61.3 61 6 . . 5 66 .4 66.9 65.4 67.2 b.9 67.5 67.2 67.5 67.6 67.3

(EE Ln 47.9 '2.3 61, 63.1 65.6 67,5 65 66.9 7 C9.5 69.3 95 89.6 9.7 89.7 6986I.E 1001 46.1 59.43 63.7 67.8 7 1 . 7 3.4 75.3 768.2 76 .35 76.7 9?. 91.5 77.1 77.2 1.82 77.3E 12V I7.r . . (1 6S.4 7C.3 73.7 6.7 78.7 79. 80.2 9.6 81.0 81.1 93.8 93.9 81.2 a4.3

4L I.co6 1. b ., 6 7.U 72.1 76.5 4.9 82.4 33.e 8914 P 9. 1 5.8 94 9 95.5 95.7 95.9 86.2GE 9L11 47.7 62.V 67.6 72, 77 7.2 8f. e e,3 6 q.8 85. 6.2 o .9 96.6 97.1 *7.2 07.2 97.36E - D1 9 - 2.3 68.1 73.5 78.4 &Z,4 8S.2 86.9 67.6 08.5 89.3 P19 . 89.6 M9.7 89.7 89.8"(r 7031 4 1.C 62.4 bp.! 74 . 79.., b3. 4 86.5 go .,! 89. 3 90.4 91.3 91.5 91.6 91.7 91.8 91.911bE h. U , 41.0 2 . 1 6A.4 74.3 79 .7 P4.3 67.6 89.9 91.,1 92.2 93.3 95.5 93.9 93.9 94.0 94.2

E -[ L:; 1°, 4911 fib 64., 74.S tl, 84.9 8P.5 9 1°. 92.2 93.6 99.9 95.1 95.5 95.7 95.9 96.0LE %L2 4-.. F0 2.6 6 R i 794.7 8 . n. ,-5. 89.4 92.,1 93.4 946.9 96.2 96.b 97.0 -:7.2 97.S 97.7

E. !L01 41.7 r, 2.6 68.6 74.7 P3. 4 J'- 6 69.7 97.'. 94.02~ o. . 97.v 97. 3 97.8 98.1 98.4 98.6GE Z V!1 41.( (.2.7 68.7 74.6 8n.6 s.6 69.9 9i. 44.2 95.8 97.3 97.8 98.3 98.7 99.2 99.4GE IGI 0.r t2.7 6A,! 74.8 FiP FS.9 89.4 92.9 94.3 9S.9 97.4 97.9 98.5 09.0 99.4 99.6

tE o -. r (2.7 6P.7 74.8 a1.6 F, 59 109.9 92.4 94.3 95.9 97.4 97.9 98.5 09.0 99.5 17(.0................................................................................................... .............................................

TOTL hUm [t! Of Oi:rRVir]OJ5: 7440

%L

___..-4

btL'UAL CLIrAtOLOGV BRANC- PNCEtNTAGL f1EIL[ENCY OF OCCU~RPEPEE OF CrILING FRSUS VISIBILITYUSAFETAC FROM FOUPLY

0SEPVAtONS.

AIR ,EAIHE SFRVICCIIAC

'?TA31CO NUV'ER: 72-287 1ATION NAME[: 1ALARA FALLS IAW NV9 pEP1OO OF QECORD: 78-87MONTf-: FEB FOURSILSTI: 0000-0200

CE IL IG 8151911,LTY IN 5NTATl6 MILES• i. IN GE 6[ E£ E GE GE LE ElE rE GL GE GE GE GE GE GE GE

FEET 1' 6 5 . 2 112 2 1 112 1 1/4 1 3/4 5/8 112 r116 1/4 0

NO CEIL 1 2 . 19.2 30.! 1G.9 31.1 31.2 31.9 32.g r 3 .0 32.E) 37.0 32 .0 32.2 32.2 32.4 32.4

t. Z| LLC 1 21. C 0.9 32.0 !2.6 32.9 33. C 3!.7 53,e 3 3. 8 33.8 31.6 33.8 33.9 !9.0 34.3 349.3GE lbCCI 21. C ,9 3,. 32.6 32.9 !3.o 33.T 33. 33.6 33.8 33.8 33.8 33.9 ?4.0 39.3 34 .3 E

GbE C I! 1 4 1 oL 32:2 32: 3 !3.1 33.7 3 . 33 9 33.? 33 34:2 3 34.4

iE 143'0( 27.8 31.3 32.5 33.1 33.3 33.5 3.2 .3 38.3 1.3 38.3 38.3 38.8 38.5 38.8 38.8,L0 2? D . '. 330 38.4 38.6 6 35. 6 35.6 !5.6 3 ,6 35.6 35.7 !5.8 36.1 36.1

I.E 30[ i 2. 6 ' .9 3 5 . 2 36 .1 3 6 .3 '6.4 3 .1 3 7 . 2 3 7 .2 37 . 2 3 7 .2 37 . 2 3 7.2 S.5 3 7 . 7 3 7 1(.E 9 VC1 2. 39.2 35., 36.3 36. ?L6 37 7. . 5 37,5 37 : 5 376 37.7 37.9 379

6E CL01 31.6 !6.2 37.5 38.3 38.5 36.7 39.4 395 39.5 39.5 3Q.S 39.5 39.6 19.7 40.0 80.01.E 7 LOI 31.9 !7.C 38.3 39.5 39.7 34.8 4).5 8C.7 ..7 40.7 4n.7 80.7 40.8 G.9 41 1 81.1

(,E 6cZ') 3Z.6 ?7.7 39. 0 C. d 40.4 40.5 41.3 81.8 81.8 81.8 Q.8 l.4 41.5 81.6 41.8 81 .8

6E 5' Or, 33.9 ?9.1 4r.5 81.7 82.1 8Z.2 47.0 43.1 83.1 43.1 8I.! 83.1 83.3 43.4 83.6 83.6" E 4CO 23 57.1 83.3 48.9 46.3 41.7! 47.3 88.1 88.2 8.2 88.2 Z F.2 88.2 88.3 88.5 8R.7 88.7I, .L0J 3qo. 88.9 86.6 8.0 48.9 8s.2 50.1 5.2 51.2 FO.2 5 % 50.2 50.4 50.5 50.7 50.7,E 47 I 82.1 8.7 50.5 52. 53.4 53.7 54.9 S5. c 55.0 55.C 5;.O 55.0 55.1 55.2 55.4 55.8QE 30C01 84.6 53.7 53.5 55,8 57.2 57.6 59.0 59.1 59.1 9-.2 59.2 59.2 59.3 59.5 59.7 59.7

(,E 2 [ L I 88.P !6.9 59.2 61.8 63.5 63.6 65.5 65.d 65.8 66.1 66.1 66.1 66.2 66.3 66.5 66.5.E i i701 53.n 63.1 66.3 68.9 71.5 72.5 74.6 75.4 15.7 75.9 7F.9 75.9 76.0 76.1 76.8 76.8bE 11,toJ 51.8 64.2 67.1 70.1 72.7 73.6 75.8 76.6 76.8 71.1 77.1 77.1 772 77.3 77.5 77.54. I 1'LIJ 56.1 67.7 71.3 78.6 77.7 79.1 81.9 03.3 83.6 83.4 83.8 83.8 93.9 88.0 68.3 88.36E 10 1 56.5 58.6 72.3 75.9 79.1 P1.0 6.- 85.6 65.8 96.1 86.1 86.1 86.2 86.3 86.5 86.5

5.E 120 56.7 69.1 73.u 76.b eo.1 P2.6 85.9 e7.7 88.2 P.8 a8.8 88.8 88.9 89.0 89.2 89.8* 9C00 56.7 E9.1 73.0 76.8 60.1 82.7 86.1 87.5 88.5 19.5 89.5 99.5 87.6 89.7 90.0 90.1IE A1 C1 56.9 C9. 8 73. 717.3 60.6 93.3 86.8 89.7 89.2 90.2 9".2 90.2 90.3 00.8 90.7 90.8,E 7cc 56.4 69.9 73.9 77.8 81.1 .3." 87.4 89.E 90.1 91,C 91. 91.C 91.1 91.5 91.7 91.8GE (col 57.3 70.0 78.0 77.9 81.8 8.3 87.9 e9.7 90.5 71.5 91.6 91.6 91.7 92.2 92.8 92.7

LE 'C07 57.0 70.2 78. 78.1 1.7 ". 88. 1 90.1 9).9 91.8 9'.1 92.1 92.3 92.8 93.0 93.3ur UC13 S7.V 70.3 74.! 78.3 81.8 a 8.8 89.9 90 . 5.9 92.8 91.1 93.8 93.9 Zq.3 98.6 98.8f.E '1 57. r 70. 3 79.3 78.1 1. '4.8 69.8 91.3 72.6 93.7 98.8 98.7 95.2 5.7 96.0 96.2GE 112c3 57.C 72.3 7.3 78.3 al.6 84., 89.9 91.6 93.1 q.4 95.3 95.5 96.1 96.9 97.3 97.6fIE 10'1 57.- 7:.3 74.3 76.3 e1.6 e4.8 8P.9 92.0 93.3 '.9 9F.2 06.7 97.8 98.3 99.2 99.5

I. 3'I 57.1 7.3 78.3 78.3 e,8 . 4. A 88.9 92.L 93.3 98.9 96.2 96.7 97.% 06.5 99.8 100.0.................................................................................................................................................

TOTAL NUM6" Of OSERVATONS: 96

kL

I. * 7 °

ELCBAL CLI810LCGV BRANC- PERCENTAGE FREGLENCY OF OCCLRENLL OF CEILING VFRSLS VISILILI1YUSAFETAC FROM FOUPLV OdSERVAITONSAIR 4FATHFR S[RVICE/MAL

STATICN NUM4LR: 775287 STATION NAME: N185R8 FjLL5 TAP NY PLPIOO OF PLCORO: 78-87

HONF-: FES PI OURSILSTI: 03CO-IS0

CEILI'J6 VISIFILIT9 IN STATUTr MILES

IN I ,E GF G GF GE (11 r1 GF GE GE GE GE GE GE GE GEFEET I IC 6 5 4 3 2 1/2 2 1 112 1 1 4 I 'll 518 1/2 '116 119 0

?1o CL 1 25.' 2G.4 29.U 29- 29.4 29.7 29.9 29.9 9.9 .9 -q.9 29.9 29.9 29.9 30.0 30.0

UE 20020C 27.3 'u.9 31.4 !1.7 32.n '2.3 32.5 32.5 32.5 32.5 37.5 32.5 32-5 32.5 32.6 32.6

6E 18C ' 1 27.5 1.1 31.7 11.9 32.3 32.5 32.7 32.7 32.7 12.7 32.7 32.7 32.7 32.7 32.9 32.9GE 16r CC 1 27.9 ?I.4 37.0 32.3 32.6 ! .9 33 .1 33.1 13.1 33.1 31.1 33.1 33.1 33.1 33.2 33.2

E 14r l I 27.9 Z1.4 32.2 12.3 32.6 !2.9 33.1 33.1 33.1 33.1 33.1 33.1 33.1 33.1 33.2 33.2E 1 1 1 27.9 71.4 32.L 32.3 32.b 32.9 33.1 33.1 33.1 33.1 33.1 33.1 33.1 ?3.1 33.2 33.2

.E I cr J z9.1 '3.0 33.6 34.0 34.4 14.6 34.9 34.9 34.9 !4.9 38.9 34.9 34.9 !4.9 35.0 35.0E 9Cr0 29.2 33.2 33.8 34.3 34.6 '4.9 35.1 35.1 35.1 15.1 35.1 35.1 35.1 35.1 35.2 35.2

CE arccl 32.7 !5.0 35.6 !6.1 36.4 76. 6 36.9 36.9 36.9 !6.9 36.9 36.9 36.9 36.9 37.0 37.0LX 7"00 1 !2. 76.4 37.. 37.8 39.2 ". 4 3P.7 38.7 38.7 78.7 33.7 38.7 38.7 38.7 38.8 38.8

CE 6C00 33.s 37.9 38.5 39.4 39.7 4C. L 4C.2 Nl.? 40.2 0 .2 N .2 4 0.2 4O.Z 40.2 40.3 40.3

6E 5'cc 35.1 4:.1 40.9 41.7 42.1 42.6 42.9 42.9 42.9 42.9 42.9 42.9 42.9 42.9 43.0 43.0(IF 45 0 36.9 43.0 44.2 45.0 45.5 46. 1 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.6 46.6

GE 410 37.- 44.3 45.3 46.5 47.0 47.5 43.? 48.2 49.2 48.2 4P.2 48.2 48.2 48.2 48.3 48.3CE 3rI2 4.F 47.9 49.3 50.7 51.7 52.7 -3.2 53. 2 53.2 '3.2 51.2 53.2 53.2 ;3.2 53.3 53.3GE 3flI 42.8 51.3 53.1 55.0 56.3 57.6 5.' 58.2 68.2 58.2 58.2 58.2 58,2 S8.2 58.3 58.3

bE 2SX 44.7 '6.1 5..4 60.6 62.1 03. 6 64. 64.4 64.5 64.5 64.5 64.5 64.5 64.5 64.7 64.7CE '-ZC I SZ.7 J.0 65.5 68.9 71.2 73.3 74.' 74.9 75.1 75. 1 71 75.1 75.1 75.1 75.2 75.2E I80 51.6 64.7 67.1 70.6 72.8 74.4 76.0 76.7 76.8 76.8 76.8 76.8 76.8 76.8 77.0 77.0

(,E Ircc '3.4 68.6 71.6 75.3 77.9 F . I a1.7 42.9 83.c 62.1 63.1 83.1 83.1 83.1 83.2 83.2bE 120' 54. 1 69.6 72.9 76.7 79.6 82. U 84.2 85.7 85.8 95.9 85.9 85.9 85.9 85.9 86.1 86.1

';E i:Cr 5b. 7:.2 73.5 77.5 8n.7 83.5 6.7 47. . 87.4 RA.2 88.3 88.3 88.3 88.3 88.8 88.%CE qc21 54.6 71.3 73.6 77.7 80.9 93.6 85.8 87.6 88.1 P8.4 8A.5 88.5 88.5 88.5 88.7 88.76r C 801 54.0 7U.7 74.1 78.3 81.7 54.4 86.8 A9.5 d9.2 09.7 80.8 89.6 89.8 90.0 90.1 9G.1GE 7c17 54.F 7.8 74.3 78.5 82.G P4.6 d7.5 89.7 90.1 QC.8 91.1 91.1 91.1 9i.3 91.8 91.4GE CCGI s5.7 71.2 74.9 79.1 e2.7 85.6 88.! 90.5 90.9 91.6 92.0 92.0U 92.0 92.1 92.2 92.2

rC : 55.P 71.2 74.9 79.1 83.0 5.9 89.0 91.4 91.7 92.6 99.1 93.4 93.8 93.5 93.6 93.6CE 4CC I .5.Z 71.2 74.9 79. i 83.0 85.9 89.2 91.8 92.2 '3.0 93.7 94.0 94.1 94.2 94.4 94.8t:, %0 ' 5. P 71.2 74.9 79.1 4 3.L '1.1 89.7 92.6 93.1 94.C 98.7 94.9 95.4 95.5 95.7 95.?

GE :n * 'S.- 71.2 74.4 79.. h 3.t P.1 o *,7 92. 6 93.4 -4.4 9.2 95.7 96. 96.7 96.9 96.9CF 1 1 55.C 71.2 74.9 79.1 83.U e,. I d9.7 92. 43.4 94 .7 96.1 96.8 97.6 98.1 98.5 98.7

bE 21 55.1 71.2 74.' 79.1 43. ; .1.1 81,. 72.6 3.4 '4.7 96.1 96.8 97.6 98.5 99.2 100.0

.................................... ..........................................................................................................

IOT1L KUMUEQ OF OqS'NVATIONS: 96

L

-u --

GLUIAL CLIMAIOLOGY BRANC PEkCENTAGE FHEGULNCY Of OCCURPENCE oF CrILING VERSUS VISIBILITYUSAF tI A C rwOt4 HOURLY OBSERVATIONS

AlR .EATHER SERVICEIMAC

STATION NUMILP: 1iS287 S8T11Ch NAME: NIALARA FALLS ZAP Ny PE"100 OF RECORD: 78-87MONTH: FEB HOURSILSIT: 0600-0801

CEILIIG V91U6ILY13 IN STATUTE ROLESIN I ', L . 00 GE GE GC GE Gf GL GE rE GE GE G GE GE

FLIT 12 6 5 4 5 2 1/2 2 1 1/2 1 1/4 1 1,4 5/8 112 /16 1/ 0

NO CMi. I !.8 p -2.5 21 23,8 Z5.6 23.6 28.0 24.C 24.0 24.1 28.1 28.1 28.1 78.1 28.1 28.1

.t ZL.LC| '0.6 24.6 25.3 25.5 Z5.8 "t.c 26.2 26.2 26.2 26.8 26.8 26.8 2b. 76.5 26.5 26.5

.E 1rCUI 2%,6 24.6 2.3 25.5 25.8 26.0 l 6.2 26.2 26.2 26. 26.8 26.4 26.8 26.5 26.5 26.5

., 1&!(u I Z2.6 24.6 25.3 25.5 25.8 26.C 26.2 26.2 26,2 26.8 26.8 26.8 26. 26.5 26. S 26.5GE 1 co1 2:. I .1 25.9 -6., 26.5 2t.7 7.U 27.c 27.c 27.1 27.1 27.1 27.1 27.2 27.2 27.2Z, 2 IZVCC 21.7 b.1 27. 27.3 27.5 27. k Z .c 78.0 24.0 28.1 2R.1 28.1 28.1 28.3 28.3 28.3

• ,E r CL 2 7. 28.3 29.1 29.8 29.7 29.9 3r.1 30.1 30.1 To. 3 30.3 30.3 30.3 30.8 30.8 30.8IE 9,L 2 1.t 28.7 29.6 29.9 30.1

3L. 4 33.6 33.1 3.6 30.7 31.7 30.7 30.7 '0.9 30.9 3c.9

I.E .,' 031 08.9 10.3 11.3 31 . 7 31.9 72.2 32.8 32.8 32.8 32.5 37.5 32.5 32.5 32.6 32.6 32.6

6E 7CCI 26. 1 31.6 32.7 33.2 33.6 !!.8 8.0 34.C 38.0 38.2 38.2 38.2 38.2 38.3 38.3 38.3F 6t C 26.8 !2.4 33.7 38.3 34.6 38.9 S5 .1 Is.1 35.1 3%.2 31.2 3S.2 35.2 35.3 35.3 35.3

.. St L6 - .6 !5.2 36.5 37.2 37.7 '7.9 34. 38.4 38.4 78.5 38.S 38.5 38.5 N8.7 38.7 38.76.E 801 3:-. '7.7 39.0 39.8 80.4 4U.7 4 1.3 41.3 81.3 82.4 81.4 81.8 82.8 41.5 1.5 81.5,.E 4'3 Z 30J. 3 41. 1 81.8 fa24 83. 1 63. 7 48.3 88. 3 48. 3 48.8 884.8 84.8 88 .8 48.6 48.6 884.6

IE 38.? 83.8 85.3 86.9 48.r 8.7 49.3 9.93 89.3 49.8 8q.5 89.5 89.S 89.6 89.6 9.6.E 3rUrI 36.2 86.2 4885 3.4 51.5 52. 4 57.! 53.8 53.P8 . a 58.1 58.1 58.1 58.3 54.3 58.3

F,. ,2 oI 19.e t1.2 58.1 57.1 58.5 59.6 63.5 61.0 61.b 61.2 61.3 61.3 61.3 61.5 61.5 61.5,E ;I 82.9 56.9 6.9 68.3 6 6.Q 66.6 7r .4 71.3 71.5 72.C 77.2 72.2 72.2 72.3 72.3 72.3[ 11 'r I % ?.c !b.c 62.3 C5.8 68.8 7r. b 7Z.6 73.4 73.6 78.1 78.3 78.3 78.3 78.s 78.5 78.5

4E 150I G 6.1 62.: 67.1 71.0 78.1 76.8 78.7 80.c 8.j P.7 81.1 81.1 81.1 41.2 1.2 1 .2

*(E 1.LL)I 4(.S 63.1 68.8 72.7 76.1 71.1 81.7 03.1 83.5 -3.5 68 3 88.3 8N.3

P8.4 88.8 88.8

.r I-'tI 87.r (3.9 6q-3 73.8 77.7 Ac.9 83.7 86.1 86.8 P7.8 87.7 87.7 87.9 88.1 88.1 88.1

F rLLI 87.2 68.2 69.5 78.1 77.9 -1. 1 68.0 86.8 87.2 A7.8 8P.2 88.2 88.8 88.5 86.5 88.5

It ~2 7.! (8.8 69.1 18.3 78.C '1.5 US-' 2 7. I ti 4.'aF 6948 89.7 89.7 8 0.2 00.1 90. 1 9G.17O 17l 87.0 A4.4 69.9 78.6 79.F 42.3 85.7 28.8 89.5 90.1 97n., 90.8 90.9 o1.0 91.0 91.0

L L 6.09 47. 14.7 70.2 75.1 79.3 "!.1 86.6 -9.5 93.7 '2.8 91.7 91.7 92.3 92.. V2.8 92.8

E 87.! C8.7 7.2 75,, 79.8 0.7 A7.2 90.3 9I.7 92.6 91.0 93.0 93.6 93.7 93.7 93.7GE 8.1j 87.3 8.7 77.2 75.2 79.h P3.7 87.' 90;.7 2.1 "2.9 91.5 93.5 98.2 98.3 98.0 98.8

Gi C :00 87. (4.7 ? 1.Z 75.3 79.9 8. c 67.8 -1.6 43.1 '4. 1 99.6 98.9 45.6 95.9 96.0 96.0(F '2c1 87.3 f4.7 70.2 75.3 79.9 P6.2 .

7.q 91.P 9!.5 95,3 96.0 9b 1 97.3 97.S 97.8 97.9

E 111 7.3 (8.7 7.2 75.3 79.; ". 3 9.1 92.L 93.7 C5.7 96.6 96.7 97.9 98.5 98,7 99.2

E I 8'. 3 "'.7 73.2 75.3 70.9 i.3 o2.1 12.C 9!.7 95.7 9C.6 96.7 97.9 98.7 99.2 100.0

TOTAL P.LPt FP (IF OPS[RVATIONS: 946

n ..... L

tF

6L0"AL CLIMAICLOGY PRANCH PEKCE'41 GE FPEGULNLY Of OCCURD~t.CF Of CEILING vFRSUS VISIelLITY

uSAFLTAC FkOM HOURLY CO8LRVA8TON0AlR 6EAT1Fp S(RVI1C/MAC

TA5T70N N8 Pn'R: 725287 1S1ATIC NAME : NIA6ARA FALLS IAP NY PER10 OF RECORD: 78-87M21NTF : FES I'OURSILSTI: 09U0-110C

LE ILIO.'b VISIRILIIY IN S1AUTE PILES

C. I i GE GE_ Ut GE ut GE 6. GE GE r,( GE GE GE GE 61F LE 1 i 6 t, 1 2 1/2 2 1 112 1 1/14 1 14 S/8 112 W/16 114 c

NO CEL I 10.? 22.9 24 U ?s5. 2s.. 7!. 6 26.0 26.C 26.c 26.4 26.5 26.5 26.5 26.5 26.5 26.

LE 200001 2,.7 2:.9 27.1 26.3 28.7 25.3 20.6 29.6 29.6 29.9 30.0 30.0 30.0 3U.0 3C.0 3U.0

E 18CL01 21.2 26.4 27.5 28.7 29. 1C.0 30.3 30.3 30.3 1G.6 3n.? 30.7 30.7 30.7 30.7 30.7LE Ibi-L 1 21.2 26. 27.5 28.7 29. 3L .0 3n.3 30.! 30.3 30.6 30.7 30.7 30.3 30.7 30.7 30.?

aE 114 ' I 21.2 '6.14 27.5 28.7 29.3 3. 1 30.4 30.4 30.4 3D.7 3v.9 30.9 30.9 30.9 3r.9 30.9

;, 12'!.01 Z'.2 27.8 29.1 !0.3 31.0 11.8 37.0 32.0 32.0 W2.4 37.5 32.5 32.5 12.5 32.5 32.5

LE 20r7O0 23.1 79.6 3-.9 72.0 3?.? 33.6 33.p 33.8 33.8 314. 34.3 314.3 34.3 34.3 34.3 314.3

., 8rL.l 23.q '0.5 31.8 Y3.1 33.8 314.6 34.9 34.9 34.9 3S.2 3-.3 35.3 35.3 35.3 3S.3 35.3

LE 8LG I 75.2 !2.- 33.( 35.1 35.q '6.e 37.0 37.C 37. u 37.14 37.5 37.5 37.5 37.5 37.5 37.5..1 77'I 2.q '3.f 35.2 371 37.9 '6.b 39.1 39.1 39.1 9.5 39.6 39.6 39.6 39.6 39.6 39.b

* t, 6F 7 26.14 74.r 3 5.6 37.7 39.5 19.14 3998 39.4 3q- 40.2 40.3 40.3 40.3 40.3 40.3 40.3

UF tr71 27.3 35.! 37.7 39.7 4r.7 41.6 42.2 42.3 82.3 42.7 42,8 42.8 42.8 42.8 42.8 42.8

7 , 4' C c' i.8 !8.3 41.1 43.3 44.1 45.3 45.9 46.C 16. 46.3 46.5 16.5 46.5 86.5 46.5 46.5

LE 14CCI 29.A '9.5 42.7 44.9 46.3 47.4 48. 4R.2 498.2 48.6 1.7 48.7 48.7 46.7 148.7 48.7L' 3' !13.6 41.5 145.3 48.0 9.5 5([8 51.r 52.0 52.1 C2.6 57.7 52.7 52.7 2.7 52.7 52.7r 1'-CI !2.? 43.9 47.9 0.9 S3.2 4.7 5.6 96.C b6,3 6.7 56.9 56.9 56.9 S6.9 56.9 56.9

uE ICC 4.,! 46.1 50.6 4.1 56.5 E6.c 59.7 60. U .5 S1.2 61.5 61.6 61.6 61.6 61.6 61.6w Z6:Zci 3'.. 49.2 55. 1,9.3 67.1 C-5.6 66.9 67.6 .d.3 69.1 69.r 69.6 69.6 69.6 69.6 69.6

UE J nl 3 . 49.9 56.2 60.9 614.3 67.3 g °! 70.2 1U.7 71.C 72.0 72.1 72.1 72.1 72.1 72.2

uE ' CC 3q. ! '3.7 6 ,.6 65.7 69.9 73.2 75.? 76.5 77.2 7F,3 79.2 79.4 79.14 79.14 79.1 79.

,E IC -110 3R.R 14.3 61.7 67.3 71.9 7..7 714,3 79.7 0.14 P1.14 q;.s 82.9 42.9 2.9 62.9 82.9

ut "CG I 34.9 '4,7 62.5 f8.2 73.3 77.4 bC.4 92.2 83.t s.,2 8'.5 P6.9 87.0 A7.3 87.0 87.0

UE ; 1 !.9 14.7 62.6 68.14 7 .5 77.6 8.9 82.7 d4.3 '5.9 87.2 T7.7 87.9 87.6 87.8 87.841 FC61 39.7 '5.2 63.4 (9.3 714.7 7.14 8 ,7 14. 9 6.14 9.14 9".2 90.7 90.8 90.8 90.8 90.8

[- 77-1 3. 2 55.2 63.4 69.3 7S.1 75.6 83.. 65.5 d 7.' .. 1 91.1 91.6 91.7 91.7 91.7 91.7FA1 (C31 3q.2 ",s.3 63.5 69.6 75.9 (.9 84.5 96.8 84. 3 43. 4 97.6 93.u 93.4 93.5 93.5 93.5

6E 'I 39.2 15.3 6.5 69.9 76.4 pl.3 85. 1 7.19 b9.! '1.6 93.9 94.3 14.7 941.9 99.9 914.9

* 11 :0 !71. ? 5.14 6!.o 7cL. I. 76.6 C-. 86.2 q9. c 90.5 q42.7 55 .3 95.9 96.7 96.9 96.9 96.91, 3 ca 4q.2 s5.1 t.!.6 70.0 77.U 2.3 P6.5 89 9 1.1 q.6 99.3 97.C 97.9 98.1 90.2 98.2,F 'DOC 3'.2 '5.1 63.6 70.0 77.C '2.3 86,P 59.7 9 1.4 4. 97.0 97.8 9946 58.9 99.4 99.4

UE 2 LC 3Q.2 5.14 63.6 7O.U 77.0 2,. 3 88 99.7 91 .4 Q4.c 97.7 97.b 98.6 99.2 99.6 99.6

6E S9.2 '5.14 63.6 70.6 77.r . 3 .6.9 .9. 7 91.4 914. 97.c 97.8 91.6 89.2 99.6 100.0

207142 %U7148t OF 0 S711NS 8146

F

GL00AL CLI84ICLOGY BRANCH PERCENTAGV FREQUENCY OF OCCUPDE'CL OF CEILING WrRSUS VISIBILITYiSAErI A FROM I-OURLY

0 tSERVATTCNS

Al, kEATHF SFRVIE/PAC

,IAT|CN 4eUP'.LR- 7'.S2b7 S&IACN HAVE: WIALARA FALLS I bPMY PEIO D OF RECORD: 78-87m0fl.N: FEP POUPSILSTI: 1200-1400

7 NILN I VISIPILIT IN STATUTE MILES

I N :,E GE GE Gr GE IE GL GE GE GE GE GE GE GE GE GErLET 1 6 S 4 3 2 112 .1 I 1l 1 114 1 3/4 SIB 112 ,l2b 114 0

NO CEIL I 7.r ZS.2 zs.6 26.0 .6.4 6.4 26.4 26.6 26.8 26.8 26.8 26.8 26.1 26.8 26.8 26.8

6E L:(.GC 1 2.7 :9.6 3O.4 '1.a 31.3 !1.3 31.3 31.6 31.8 31.8 31.8 31.8 31.6 31.8 31.8 31.8.E lif Cf I ,. 79.6 30.5 !1.1 32.4 !14 32 .4 !1.7 31.9 31.9 31.9 12.9 31.9 31.9 31.9 31.9LE 16 0C I Z' . 29.7 30.6 1 .2 31.6 1.6 31.6 31.8 32.0 12.0 32.0 32.0 32.0 !2.0 32.0 32.0:F Irc 2 t. 73.1 31.1 31.7 32.0 3 2.C 32. 32.3 32.5 32.5 37,S 32.5 37.5 32.5 32.5 32.5,E 12! LC1 2.' 71.7 32.6 33.2 33.6 33.6 33.6 33.6 34.0 34.0 34.3 34.0 34.0 '4 . 34.0 34.0

LX ItE 7." 73.7 34.4 35.3 35.7 35.7 35.7 35.9 36.2 26.2 36.2 36.2 36.2 36.2 36.2 36.2LI 530:o 29.4 '4.8 35.8 36.4 36.9 :6.9 36.9 37.1 37.4 77.4 37.4 37.4 37.4 37.4 37.4 37.41c. 8 C 2 .1 !6. 1 37.2 37.9 38.5 36.5 38.5 38.8 39.C 39.0 31.0 39.0 39.0 39.0 39.0 39.0

11E 7 0, 3cc ! .6.5 37.4 38.5 39.1 .1 39.1 39.4 39.6 '9.6 39.6 39.6 39,6 39.6 39.6 39.6GE fCc r !1. 3 !7.6 39.0 39.7 45.3 40.3 4C.1 40.5 40.8 4C.8 41.8 40.8 408 40.8 40.8 40.8

GE Sr Col .3 38.9 43.6 41.4 42.4 42.b 4,.9 43.1 43.4 43.4 4F.4 43.4 43.4 43.4 43.4 43.4* &r 4'uI1 s. 4J.7 42.7 43.6 44.7 44.6 45.3 45.5 4 5.? U5.7 47 45.7 45.7 .S,7 4S.7 45.7uE 4r0C 34.f 42.4 44.6 46.6 46.7 46.9 47.4 47.6 47.9 47.9 47.9 47.9 47.9 47.9 47.9 47.9*E 3rrr 35.7 44.4

46.t 47.8 49.4 49.8 50.4 tJ.7 6.9 60.9 5 .9 50.9 50.9 5t0.9 S.9 50.9

GE 3!rZ U 36.A 46.8 49.6 5c.9 53.2 53.9 64.8 55.3 65.6 %5.7 54.7 55.8 55.9 55.9 65.9 55.9

GE 2'"C 3'.: 53.a 54.3 56.1 5.6 59.7 6c.8 61.3 61.6 61.7 61.7 61.8 61.9 61.9 61.9 61.9uE aCO 427. 56.4 60.3 63.2 t6.4 67.7 69.5 73. 3 70.7 71.0 71.2 71.3 71.4 71.4 71.4 71.4.E I'rco 1'. I - S.4 62.6 6.1 69.7 71.2 73.2 74.C 74.5 7.6 ,1 75.2 75.3 75.3 75.3 75.3

.E I1%'1 45.2 611,3 66.5 70.2 75.2 77.2 7Q.9 41.2 6i.9 42.4 82.7 82.9 83.0 R3.0 83.0 83.0GE 1 46.S 62.5 67.8 71.7 77.4 39.4 62. 83.t 44.3 a4.9 85. R5.6 45.9 '6.1 86.1 86.2

.E IC(c 45.7 43.1 69., 73. 79.3 r1.3 b4.4 85.c d6.6 57.6 8'.1 88.4 88.8 88.9 88.9 88.9GE eLCI 45.? 63.1 69.2 73.5 79.3 f1.6 84.4 46.2 87.2 48.1 8'.1 89.4 69.7 90.0 90.1 90.1.E 1Lbl 45.7 C3.Z 69.4 74.1 80.4 ^2.7 86.3 37.8 88.9 45.7 9".7 91.0 91.4 91.6 91.7 91.7

GE 7;:f 4%.7 F3.4 69.5 74.3 8c.7 P3.3 86.q P.4 89.S 90.4 91.6 92.0 92.3 92.6 92.7 92.74E (t0I 4S.7 83.5 69.6 74.5 31.1 -3.6 67.8 89.4 93.4 01.4 97.8 93.3 93.7 94.2 94.6 94.6

1, 5u$0j 45.6 63.6 69.7 74.1 82.3 '4.3 .i?. 93.c 91.1 92.3 9i.7 94. 2 94.7 9.3 95.6 9S.6Gr C'I 41.t 63.: 69.7 74.9 81.6 ,14.6 8.8 90. 5 91. 7 93.0 96.6 95.0 95.5 96.2 96.6 96.6E ',1 4 '. S '3.6 60.7 74.9 61.1 " .L 69.4 91.5 92.7 94.1 91.6 96.2 96.7 97.5 97.9 97.9GE :r1 4S.9 63.6 69.7 74.9 611.7 s .2 89.6 91.1 93.3 V 4,6 96.2 96.9 97.S '8.5 98.9 98.9LE ICC 4 41..6 69.7 74.9 hi,7 '5, 1 69.6 1. 1 93.L 94.6 9f,.2 96.9 97.8 98.b 99.4 99.8

*. 24'.' 63.6 69.7 74.9 41 .7I I! 5.1 61 .6 901.71 1 93.3 46 96.2 96.9 97,8 '8.8 99.4 200.0. . ............................................................................. ........ ........... .........................

TOIL NthPLFEa Cr O1SEVAIIONS: 46 L"

a .

GLOPIAL CLTPRTOLOGY PR8'JCH PE(hENIAG FREQUENCY OF GCCURDENCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM OURLY ODSERVAIIONSAIR brAiER SFRRVICE/IAC

STATION NUP1ER: 7 S5A87 ATAIION NAME: NIAGARA FALLS IAP t:' PER100 OF RECOPO: 78-87MONTF: FEB IOURO

5LST: 1500-1700

................................................................"...............;.............................................

CE ILIG 4151610111 IN STATUTE MILES

IN I rL GE GO GE GE bE GE GE GE GE GE GE SE GE GE GEFEET I 1' 6 4 4 3 2 1/2 2 i 12 1 104 1 1/4 58 112 5/16 t", 0

NO CEIL 1 22.6 26.6 27.2 27.5 27.S 27. 7 27.7 27.8 27.8 27.8 27.8 27.8 27.8 27.8 27.8 27.8

,5 .0001 2.4 '0.0 30.7 ,. 31.3 31.4 32.4 31.6 31.6 1.6 31.6 31.6 31.6 3.6 31.6 31.6GE 18"0f1 25.5 3 .1 39 9 71.3 31.4 31.6 31.6 1. 7 3.7 31.7 31.7 31.7 31.7 71.7 31.7 31.7LE G6=LCI 25.S 10.1 30.9 !1.3 31.4 31.6 31.6 31.7 31.7 31.7 31.7 31.7 31.7 71.7 31.7 31.7GE 14-Lu! 26.5 !1.2 31.9 3,.4 32.5 !2.6 3.6 32.7 32.7 32.7 32.7 32.7 32.7 32.7 32.7 32.7,E I ZC; 1 27.4 ?2.4 3 ?.2 33.6 33.9 34. 6 34.n 34.2 34.2 4- 2 34.2 34.2 34.2 34.2 34.2 38.2

.E lor'ch] 29.7 34.9 35.7 36.4 36.5 16.6 36.6 36. 8 6.8 76.4 36.8 36.8 36.8 36.8 36.8 36.8GE 9rCCI 27.9 ?5.2 36.1 36.8 36.© 37. C 37.0 37.1 37.1 '7.1 37.1 37.1 37.1 77.1 37.1 37.1

GE 8C 0I 31.f. 37.4 38.2 39.0 39.1 39., 39.2 39.4 39.4 39.4 3q.4 39.4 39.4 39.4 39.4 39.4

c.r 7rool 31.- !8. 1 39.U 4C.0 49.1 4L. 2 4.2 40.3 40.3 O.03 47. 3 40.3 40.3 40.3 40.3 40.3

GE b CO 32.6 !9.4 40.4 41.5 41.6 41.8 41.5 42. 42.0 42.C 47.0 42.0 42.0 42.0 42.0 42.0

"E E .v! !?.Q 4G.9 42.1 43.4 43.6 44. 44.0 44.1 44.2 44.2 -4.2 44.2 44.2 44.2 44.2 48.2SF 4rlC1 35.7 42.9 44.1 45.4 46.C 4.(7 46.7 46.8 46.9 46.9 46.9 46.9 46.9 46.9 46.9 46.96E 410132 31.c 45.4 47.2 48.8 49.8 ',.S 50.6 50.7 50.8 50.8 50.8 50.8 50.8 50.8 50.8 5U.8

.E 3-C1 3 .F 47.2 49.1 51.4 52.4 53.3 53.4 53.5 53.8 53.8 53.8 53.9 53.9 !3.9 53.9 53.9

LE 310l 42.1 '1.2 53.3 S6.4 57.6 5. 6 58.9 59.U 59.2 59.3 59.3 59.5 S9.S 59. 59.S 59.5$9..

GE Zf L I q.2 !6.4 59.t 62.4 6 3.p 65.4 65.7 65.6 66.1 66.2 66.2 66.3 66.4 66.5 66.s 66.5

tE 2rc:I 4.8 E1.9 65.8 70.7 72.6 74.5 75.1 75.3 75.7 75.9 75.9 76.C 76.1 76.2 76.2 76.26E 1 Li 47.6 63.5 67.4 72.5 74.3 76.4 77.C 77.3 77.7 78.C 7P.1 78.3 79.4 78.5 78.5 78.s5 IrCC0 sC.p A 6.C 70.3 75.7 7S.7 PI.c 62.:' 82.6 83.1 03.6 81.8 83.9 94.0 P4.2 84.2 84.2

GE l7L7I 51.1 66.8 71-.3 76.6 80.3 63. U 84.5 85.6 86.4 T.7 87.4 87.5 87.9 48.1 88.1 88.1

0,r 1r02.3 12. 66.9 71.4 77.3 61.1 E4.2 85.' 87.2 87.9 88.7 89.0 89.1 89.6 99.7 89.7 89.7

GE qC: 51.1 66.9 71.5 77.5 8 1. 3 84.5 86.6 88.1 d8.8 R9.6 9n.1 90.2 -3.7 90.8 90.8 9G.8 t..5 F01I 51.2 6T.C 71.6 77.8 81.7 R4.9 87.2 84.8 89.5 90.4 91.3 91.4 92.0 92.1 92.1 92.1SI 7 51.2 f 7.C 71.6 77.9 R1.8 65.3 87.9 89.6 92.3 91.3 97.3 92.6 93.1 q3.3 93.3 93.3

GE 62' 51.2 67.2 71.7 78.L 82.5 1c.1 89.8 90.7 91.4 '2.4 9!.6 94.0 94.6 94.7 94.8 94.8

,,E 'Cr.7 51.2 67.1 72.7 78.1 62.6 46.2 be.? 90.9 91.6 '2.7 94.1 94.6 9594 95.b 95.7 95.7GE 4on1 51.2 67.1 71 .1 78.3 87.7 Rt.3 89.1 91.1 92.1 93,1 94.7 95.2 96.0 q6.2 96.3 96.3LE '301 52.2 67.1 71.7 78.3 82.7 .6.4 69.5 91.8 92.8 94.1 9R.6 Q6.1 96.9 97.6 97.9 98.0GE 2 cl. 51.2 67.1 71.7 7b.3 62.7 -6.4 89.6 92.L 93.1 94.6 96.1 96.6 97.5 98.2 98.5 98.66E I c I .? 67.1 71.7 78.3 R2.7 F6. 4 b9.6 92.L 93.1 94.6 96.1 96.6 97.5 98.5 99.2 99.5

CE ol '2.2 67.1 1.1 78.3 P2.7 86.4 69.6 92.C 93.1 14.6 96.1 96.6 97.5 9a.5 99.2 100.0

IO1L NUMO[P OF ooERVAJ1OPIS: 846

c.A

6LOto8L CLI11TCLOGY B48IJCO PEWCLNIAGE FREQUENCY Of GCCllRQENCF OF CFILING 87RSUS VISIBILITY

LS FtIAC FROM HOURLY 085ERVATONS

AIR 6EAT1ER SERVICIPIAC

6TATIC% NU8I'R: 775767 S11 IC14 tAME: %16AfAA FALLS 1AP Sy PEPOD OF RLCORD: 78-87

MONTH: FEB HOURS#LSTI: 1800-20

CE IL, V91516I111T IN Slluir MILESI, I r GI GE G GE 6E GE GE GE CfE GE GE GE 5E GE fE

FEET I 1r 6 5 ' 3 2 12 2 1 1/2 1 1/4 1 7/4 5/8 112 16 1/4 0

NO CEIL 1 25. 1 '2.1 31.1 31.3 31.4 '1.4 31.6 31.6 31.6 31.6 31.6 31.6 31.6 31.6 31.6 31.6

*5 2C"uC 20.0 34.j 35.r 35.5 35.7 35.7 35.F 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.8(IE I8rso 25.? '4., 35.5 35.9 36.2 3c.2 36.3 36.3 36.3 3b.3 36.3 36.3 36.3 !6.3 36.3 36.3.E L 'C- .19 4 .9

3s.e 36.3 36.5 !.c 36.6 36.b 35.6 '6.6 36.6 36.6 36.6 36.6 36.6 36.6

GE 14f-C3 31.9 i5.5 36.4 16.9 37.1 37.1 37.2 37.2 37.2 37.2 37.2 Y7.2 37.2 37.2 37.2 37.2SF 12cc 31.3 !7.2 38.2 38.7 3S.0 39. C 33.1 39.1 39.1 39.2 39.2 39.2 39.2 39.2 39.2 39.2

uF iGCCDO 33.r Pi.1 4C.1 4C.7 43.q 41.0 41.1 41.1 41.1 41.3 41.3 41.3 41.3 41.3 41.3 41.3E 9r.Ol 33.f 9.7 40.7 41.3 41.5 41.6 41.7 41.7 41.7 41.8 41.P 41.8 41.8 41.8 41.8 41.8

Uf 81-5 C- 34.6 41.4 47.3 42.9 4 3.1 43.53 43.4 43.4 43.4 41.s 43.5 43.5 43.5 43.5 43.5 43 .5GE 72Cr1 35.3 42.3 43.4 44.3 44.6 44.7 44.8 44.8 ; 40 44.8 9 44.9 44 .9 44.9 44.9 44.9 44.9

r~6rce1 36.3 43.5 44.7 45.6 45.9 46.t- 46.1 46.1 46.1 46.2 46.2 46.2 46.2 46.2 46.2 46.2

* E u tI c cI !q.1 4.6 46.9 47.9 48.2 4E.3 48.5 48.5 43.5 48.6 4A.6 48.6 48.6 48.6 44.6 48.6ilF 4SC;5 I 41.f 4 .7 53.1 51.2 tI.P 51.9 52.r 52. C 32.u 52.1 52.1 52.1 52.1 12.1 52.1 52-1CX 4 CI 4?.t p1.4 52.8 54.3 55.1 5L.2 S5.3 55.3 55.! 55.4 55.4 55.4 55.4 S5.4 55.4 55.4.,E 3

0iL 1 45. 4.b 56.4 58.2 59.2 S. 3 5g.5 59.5 59.5 59.6 59.6 59.6 59.6 59.6 59.6 59.6

i., 37LCI 46.7 57.2 59.1 (1.1 62.5 62.9 6 !.n

bite 63. 63.1 63.1 63.1 63.1 63.1 63.1 63.1

(,E 25-1 51.3 (3.7 66.0 66.6 7".C 71.3 71.4 71.4 71.5 71.6 71.6 71.6 71.6 71.6 71.6 71.6LE 2.ib1 S4. 617.6 70.2 73. 2 74.6 7b.4 77.r 77.1 77.2 77.3 77.4 77.4 77.4, 77.4 77.4 77.4UE 1PL0 5 .3 68.7 71.4 74.6 76.2 77.6 78.4 78. 78.6 78.7 70.8 78.6 19.0 79 .i 79.0 79.0

' IrCC 1 56.5 71.2 74.2 77.8 79.3 ) I.9 62.7 83.2 83.5 q3.6 8.7 83.7 83.8 -3.6 87.8 R3.8E 12d31 57.r 72.L 75.. 79.1 83.( 03.7 85.1 85.7 85.9 86.1 86.4 86.6 86.8 86.8 86.8 86.8

GE 1.i:r I 57.P 72.6 75.9 F0.1 02.6 8.1 86. 87.5 o 7.8 08. 88.8 89.0 89.2 89.2 89.2 892E ';LC 57.1 7?.7 76,. PC. 67.7 P5 . 2 87,3 . 7.b a t,2 P.b 63.4 89.6 89.8 90.0 90.0

9 0.0

.,E PC2 S7.6 7Z.9 76.5 C.7 b3.2 .5.b e7.7 88.7 69.1 v9.7 9'.4 9fl*7 93.9 ql.U 91.0 91.04E 7(.7 57.7 73.3 76,b 81. 8 3.b (.6 64.9 93.6 9.3 I 91.7 92.1 92.3 92.4 92.6 92.6GE 65L1I 57.7 73.4 77.L P8 .6 84.0 7. 0 69.1 0.2 90.7 91.5 92.3 92.7 93.3 93.3 93.4 93.4

5E "cc S7.P 73.c 77.3 R2. u e4.5 17.7 897 8 91.1 V1.6 92.p 9'.7 94.3 94.8 95.Z 85.3 95.3uE a 'L;j 57.8 73.6 77.3 2.L) E4.6 7.9 93.4 92.2 7. '34 .C, 94.o 95.5 96.0 96.3 96.5 96.5;,f

3Lr 57?. '3.8 77.4 02.3 05.0 0p.3 91., 33.5 94.2 35.5 9'.6 97.2 37.4 8 48.2 98.2

GE ?.- 57.7 73.6 77.4 Z.3 o5.0 ^M.3 .I.C 93.4 94. 9b.- q7.7 97.6 9m.3 Q8.8 99.1 99.1..E 5LO1 57.8 73 77.4 R2.3 hS.' 1-.3 I 3 .9 94.? 6.U q7.0 ;7.6 93.5 99.2 99.4 99.5

tGE j s 7.8 P 3.e 77.4 82.31 6 S.U w '3 91.' 13. 94 .7 -6 . 97.0 97.6 98.5 59.2 9. 4 100.0.............................................................................................................................................

TOTAL hlwmp1p OF O'SrRVATION5: 946 L

____ __ I

S_~..-.--.-

F

,LuOAE CLIVA3OLOGY 9RINCH PERCE'4TAGE FRELUENCY OF OCCURRENCE OF cILING

VERSUS VISIBILITYUSAFETAC F00 FOURLY OBSERVATIONSAIR w[ATplt 5FRVICE/9MC

- STATION NIIh3EG: 7.-287 STATION NAME: NIGARA FALLS IAP NY PEnIOo Or RLCORO: 76-87MCNTH: FEB HOURSILSTI: 2100-23o0

v CEILINGs ISIr1LIT IN STATUTE MILESI I GE GE GE GE G. GE GE GE GE GE rE GE GE GE CE GE

FEET I ir C 5 4 3 2 112 2 1 112 1 1/4 1 7/4 518 1/2 5/16 1U4 0

%0 CEIL I 29.P

'8.7 29.8 30.5 31, '1.3 31.6 31.6 31.6 31.7 31.7 31.7 31.7 31.7 31.7 31.7

GE 202201 26.6 !.7 31.8 32.6 33.5 7 ..5 33.8 33.8 33.8 3.9 37.9 33.9 34.0 34.0 34.0 34.0SE 1 2SC Z6.C '0.7 31.6 32.6 33.5 33.5 33.8 33.9 33.8 73.9 31.9 33.9 34.0 4 .0 34.0 34.0UE 16 21 2 6,7 '1.1 32.2 33.U 33.p 73.8 34.2 34.2 34.2 74.3 34.3 34.3 34.4 34.4

3 4.4 34.4

GE 14C25l 26.e !1.2 32.3 33 1 33.9 3,9 34. 3 34 3 34*3 34.4 34.4 34.4 34.5 34.5 34.5 34.5.. 1 x2 I 2'.! !3.7 34.8 35.6 36.4 't.4 36.8 36,8 36.9 36.9 36.9 36.9 37.

0 3 37.0 37.0

(,E I cCuo 30. 76.1 37.1 77.9 39.8 e.e 39 . 1 19.1 39.1 39.4 39.4 39.4 39.5 39.5 39.5 39.5GE 9rC.1 71.3 6.9 37.9 78.8 39.6 '9.6 40.C 40.0 40.0 40.2 4r.2 40.2 40.3 40.3 40.3 40.3SE 81co1 32.9 !8.5 39.6 40.4 41.3 41.3 41.6 41.6 41.6 41.8 41.8 41.8 42.0 42.0 42.0 42.0;E 7'.C0 13 .3 !9.6 4C.9 42.J 42.8 42.8 43.1 43.1 43.1 43.4 49.4 43.4 43.5 43.5 43.5 43.5A. ui'0 3'.f 79.6 41.1 42.2 43. 43.1 4 3.5 43.5 4 3.5 43.7 43.7 43.7 43.9 43.9 43.9 43.9

E 5-001 35. ' 42.2 43.6 45.4 46.3 46.6 46.9 46.9 46.9 47.2 q7.2 47.2 47.3 47.3 47.3 47.3GE 4'-(I 31.0 46.1 47.8 49.6 50.7 51.1 51.4 51.4 51.4 51.7 51.7 51.7 S1.R 51.8 51.8 51.8"I W"2!1 43.F 48.2 5C.1 92.1 53.2 53.5 53.9 53.9 53.9 ,.1 54.1 54.1 54.3 54.3 54.3 54.3GE 37'.'i 43. n 2.0 53.9 56.0 57.1 57.6 5E.2 58.2 59.2 58.4 59.4 58.4 58.5 58.5 58.5 58.5

GE 30 c 1 4.s '5.1 574 59.6 61.C 61.6 62.2 62.2 62.2 62.4 67.4 62.4 62.5 62.5 62.5 62.5

GE 2'L1 8'.C F,9.4 62.3 64.9 66.7 67.5 68.4 68.4 69.4 68.7 6.7 68.7 68.8 68.8 68.8 66.8S :7 5t.7 '5.7 68.b 71.5 77.6 7.1 76.5 76.6 76.7 77.0 77.0 77.0 77.1 77.1 77.1 77.1

I 1.j !4.5 (8.2 77.3 73.L 75.3 76.8 7.5 78. 78.) 79.0 79.0 79.0 79.1 79.1 79.1 79.1E CC 1 5.?" 7t:.4 72.9 76.4 79.1 Ft.9 83.7 94. 844.3 q4.C 84.6 84.6 84.8 84.8 44.8 84.8

6E IZL C .7 11.5 74.6 78.9 81.2 ! 1 89.6 96.5 86.8 87., 87.2 87.2 87.4 87.4 87.4 87 .4

t 1r

O I .9 72.6 75.8 79.9 63.0 E5. 0 68 .3 89.0

89.2 89.8 89.4 89.b 99.0 90.0 90.o 90.0GE 9 1 56.1 72.8 76,S AG. 1 83.3 E9. 3 84.9 99.6 89.8 90.4 9'.4 90.4 90.5 90.5 90.5 90.5"E 1 56.4 73.3 76.4 91).5 64.f, "6. 89.6 9J.,5 90.8 91.5 91.5 91.5 91.6 91.6 91.6 91 .6UL 7C1 56.5 7!.5 77.j 91.1 84.6 pt.6 977.4 91.5 91 .7 7 97.7 92.7 92.8 92.9 93.0 93.0

SbE I co 5. 73.5 77. .C 81.1 84.6 66.t 9. 4 91.6 '1 . 5 2.8 92.8 92.8 92.9 93.1 93.3 93.3

*GE "'9 14.5 73.5 77.1 01.2 84.8 76.9 93.7 92.2 92.2 93.1 93.s 93.5 93.6 '5.9 94.0 94.0

GE 4 z I E6.' 73.6 77.2 91.3 65. q7. 4 91.3 92.6 92.8 93.7 94.1 94. 94.4 94.7 94.8 94.8

iE 0I1L. '! 73.6 77.2 F1.3 65.1 97.6 91.5 93, 93.4 .4.3 99.7 95.0 95.4 95.9 96.2 96.2.,r . Mp 5 .S 73.6 77.2 '1.3 85.1 P77 91.7 93.9 94.2 95.5 9'.9 96.2 96.6 97.3 97.8 97.8GE 1L2 I --.- '3.6 77.2 91.3 65.1 7. 7 91.7 93.9 94.7 96.2 96.9 97.4 97.9 98.8 99.4 99.6

(,E 58.! 73.6 77.2 81.3 89.1 F7.7 91.7 93.9 94.7 96.2 96.9 97.4 97.9 98.8 99.4 100.0

lOTAL NUMPEr OF C'SERVATIONS: 846

~L

____ 4

- ________-

GLOBAL CLIPATCLOGV eRANCF PERCENTAG[ FRLCLEjCY OF OCCUHVAENCE OF CFILING VFRSUS VlSIelLITYLSAFEIAC FROM FIOULY OUSRVATONSAIR WEATHRC SERVICEIMAC

STATION NUMEEP: 7i5287 STATIC% NAME: NIA6AR FALLS TAP NY PERIOD Of RECOPO: 78-87MONTI : FEB FOURS|LSTI: ALL

CE ILOIN VISIp1LITY It. STATUTE POILES1! I GL UE GE GE GE GE rE GE GE 6E GE GE GE GE GE GE

FELT I C 6 5 '4 2 Z/2 2 1 1/2 1 1/4 1 J/4 5/8 1/2 5/16 1/8 0

......................................................................................................................

NrO CEIL I 23.C 26.7 27.5 26.- 2R.3 2b.4 28.6 28.7 28.7 28.8 2R.8 28.6 28.8 28.8 28.9 26.9

L.E Jj~trI 25.1 79. 6 317.5 31.6. 31.4 !1.6. 3 . 31.9 31.9 12.0 32.0 32.0 32.0 32.0) 32.1 32.1uE 18CC0 2S.4 '9.7 3g.6 1.2 31.6 !1.8 32. 32.1 321 32.2 37.2 32.2 32.2 32.2 32.3 32.3

bE I6 6c I5.s -9.8 3C.8 31.8 31.8 31.9 32.2 32.2 32.3 32.3 3. 3 32.3 32. 32.8 32.8 32.84E 14f'01 25.' c 0.3 31.2 31.8 32.2 31.8 32.6 32.7 32.7 92.8 37.8 32.8 32.8 32.6 32.9 32-9(,E 120001 26.8 '1.6 32.6 33.2 33.6 33.6 38.C 38.1 38.1 38.2 38.2 34.2 38.2 38.3 38.3 38.3

iE 1ar3oI 29.4 13.6 38.5 35.2 35.6 35.b 36.1 36. 1 36.2 6,3 36.3 36.3 36.3 36.3 36.8 36.81,[ 900131 29.8 38.1 3S.1 35.8 36.2 36.5 36.1 36.7 36.8 36.9 36.9 36.9 36,9 3?7.0 37.0 37.U

L.E 8' C1 3 C. '5.9 36.Y 37.7 3q.1 38.3 38.5 38.6 33.6 38.7 38.8 38.8 38.8 38,8 38.9 3869

116 7 b60 32, i.Q 6. 9 38,3 79.1 3 9 .5 38.1 8 0.r 4G.0 8 0.0 80.1 81.2 80.2 80.2 80.2 810. 3 80.3bE 6-00I 31.6 17.8 39.U 10.1 10.5 4C.8 1.0 c 81.1 81.1 41.2 81.2 81.2 81.3 11.3 81.3 81.3

.-E S'C3 I !3.1 19.7 81.1 82. 82.9 83.2 83.c 83.7 43.7 83,8 83.9 83.6 83.9 83.9 83.9 843.94CO 8 .0I 35.2 82.6 88.2 15.6 86.3 86.7 83.1 87.2 87.3 87.8 87.8 8 7 87.8 87.8 87-5 87.5

LE 8q'32I 36.8 '18.5 86.3 87.8 88 0.8 89. 3 89.7 89.8 8Q.9 50.o 50.0 50.0 5'1.0 R0.0 SC.1 Io -I3 S 5, 1 33.6 107.5 89.6 51.-o 52.6 53. 2 53.3 53.9 58.0 58.1 58 .1 584.2 58.2 586.2 58.3 54.3

bE 3 001 4 - , 53.4 52.7 55.0 56.6 57.8 S9.l 58.3 8. 8 58.b S.6 58.6 56.7 8.7 58.8 58.8

i.E 2!,01 55.2 5e.b 60.1 62.5 3.1 68.5 68.6 b4.9 65.2 65.2 65.2 65.3 65.8 6S.4 65.8, 2-L0Z 60.6 b

q. 67.S 70.0 71.7 73.r 73.6 73.8 78.2 78.3 79.3 78.8 78.8 78.5 78.5

bE ISL I 4 8 6l.9 65.6 69.2 71.8 73.6 75.C 75.7 75.9 76.3 76.8 76.8 76.5 76.6 76.6 76.b;,F 1%.0 I .? (5.1 69.3 73.3 76.6 7.7 8.7 81.7 82.1 82.5 87.8 82.8 82.9 F2.9 83.0 83.0I, 170nI 5.6 66. 1, 7.5 78.8 78.8 0.9 83.2 88.5 88.9 95.3 88.7 85.8 85.9 6.O0 86.0 86.0

.E 10o00 -.0.9 66.7 71.3 75.9 79.7 P2.5 85.1 86.6 87.2 -8.0 88.8 88.5 88.7 86.8 86.8 88.8GE IL11 51.0 '6.7 71.8 76.0 79.9 .2.7 8 .s q.1 87.8 88.6 sq." 89.2 89.8 689. 89.5 89.6UE ,nI ,. 1 67. L 71.9 76.5 813.6 83.b 86.5 Be. 3 89.c 89.3 97.5 90.6 90.8 80.9 91.0 91.0,E 7C11 1.1.2 -7.2 72.0 76.8 81.0 P4. 1 87.2 89.0 69.8 90.9 91.5 91.7 91.9 92.1 92.2 92.2I(; C 0c 1.2 67.3 17.2 77.1 81.5 68.7 87.9 89.8 9C.6 91.b 92.8 92.b 93. 93.2 93.3 93.8

GE rl 51. 67.4 72.3 77.3 81.8 95.1 69.8 90. 931.3 82. 9W.4 93.7 98.1 98.8 98.5 9#.5!,E 4 :Z I 51.2 67.8 72.8 77.4 8 1 .9 's. 3 eq .9 91.1 V2.0 93.2 98.2 98.6 95.1 95.8 95.6 95.6

E 3c01 51.2 67.5 72.8 77.8 82.r S.5 89.3 91.9 97.8 88.2 9q.3 95.b 96.8 06.8 97.0 97.1

(,E 'CC I S1.2 57.5 72.8 77.81 87.0 c 1.-6 88.8 92. i 93.3 18. 6 9'1 96.6 87.! 97.9 98.2 98.3Sb 1CoJ o3.2 67.5 72.8 17.8 82.0 Ps.6 89.8 92.2 91.8 9s.1 9A,5 97.1 97.9 98.7 99.2 99.8

bE 71 51.2 17.5 72.8 77.8 82.C - . 6 8o. 92.2 9!.8 -5.1 96.5 97.1 97.9 98.8 99.3 100.0

............................................................................................................................................TOTAL NJMSOZ OF onSERVATIoj-": 87b8

-...

-~ ~ .*.A

LLOAL CLIMATOLOGY PNANC1- PENCENTAGE FFE(UE.C OF OCCt'RENCE OF CEILING VERSUS VISIEILTYUSAFEIAC FROM IOUPLY OdSERVAIIONsA I? WrATER SfRVl(7[I AC

STATION NUMnL: 7.A287 STAIIN 4NAHE: NIAGARA FALLS IAP NY PELIO OF RLCORD: 78-87MONTH: MAP HOURSfLSTJ: 00OO-0200

1-01111 VISIBILITY IN STAIUTE MILLSII. I CE 3E GE 6E GE G GL GEG O GE G GE GE GE

1El 5 I4 '. 3 2 12 1 1t 1 1/4. 1 ,4' 518 112 5/16 1/' 0

140 CEL I 36..6 !9.6 '0.1 40.3 40.4 4C..5 4..9 '1.5 '1.5 41.5 '1.5 '1.5 41.6 '1.6 41.6 '1 .6

,f' 2L O0 3P. i '1.5 .0 '2.. 42.5 42.t 42 .) 43.5 43.5 43.5 '3.5 '3.5 43.7 '3.7 '3.7 '3.74E 28.O I , .1.3 '.. '2.' '2.5 '2.6 42. 9 3. .43.5 43.5 .1.5 43.5 '3.7 '3.7 q3.7 '3.7

4E 16b|1 34.'. 1.6 42.2 '2.5 .2.6 '2. 7 43.C 43. 7 43.7 43.7 ' .. 7 '. 1 7 3.8 '3.8 43.8 .3.8tiE 14 O33 I !P.L: 81.5 42.5 82.b 42.9 43. L 43.3 44. C 4'.C 4o.0 '..0 '.0 4'.1 '.'. 1 ''.1 .4.1LE 1ZI 01 3q°7 .3-j '3.9 .2 4'.3 .4 ' .7 45.4 '.5.' '.5.' 4 . '5.'. 5.5 '5.5 .. 5 .s.5

(,E I (13r0 I 4. 1 44.0 4.° .,9 45.| '.5. 3 45.6 '.6. '.6.3 '6.3 .6.3 '6.3 '6.5 '6.5 '.6.5 '6.5E 9'CO 1 4-.4' '114.3 '4.9 '5.53 1 ' .'. 85.6 4S.9 '6.7 4.6.7 46.7 '.6.7 '.6 . 7 '6.8 '6.8 '6.8 '.6.8

I.E 8L0 1 42.' '.6.3 47.0 '7.3 '.7. '7.6 '.. 48.7 .9.7 '8.7 '.87 '87 8.8 '.8.8 8.8 8..8bE 7r'Co1 a2. '.%6.7 47.'. 7.7 '.7.8 '..1 8.'. '9.1 '9.1 .9.1 '.9. '9.1 '9.2 '9,2 '9.2 '9.2

1. 64 '4.8 '..2 '9.0 '..' '9.5 19.7 50.0 50.8 50.8 SO.8 5r.pi 50.8 50.9 53.9 53.9 50.9

C.E 51'!o AN..1 51.7 52.6 53.0 S3.1 53. 3 53.7 5'..'. 5'.'. S'.' 5'6.' 5'.' 5'.5 S4'. 5 s'. S4..5UE '.%C 4.2 'S.2 56.1 56.9 57.1 57.3 57.6 SR.' b8.'. 58.' 5A.'. 58.' 58.5 58.5 58s. 58.5,E '.'OOI 5C.5 8.'. 59.6 6C.3 60.5 6c.6 61.1 .1.9 62.0 62.2 67.2 62.2 62.3 62.3 62.3 62.3

3 . 3511 52~.4 61.C 62.3 63.2 6'.0 ('4.2 b4 .5 6S.'. 65.5 65.6 65.6 65.6 65.? e.7 6S.7 65.7UE 3r Lo 5% ., S.2 66.5 67.4 68.2 CE.' 6'.7 69.6 69.7 69.8 69.8 69.8 69.9 69.9 69.9 69.9

1,E C L S7.,7 C-9.1 701.6 71.6 77.6 12.9 73,.2 74.,1 74.2 74.,3 711.1 78.3 78 8 710.4 74.,8 74.4

LE -CC7 62.F 74.0 75.9 77.5 78.5 79.0 79.9 80.5 b-3.8 00.9 80.9 80.9 81.0 81.0 81.0 81.0:,E IF.c| 61.3 74.8 77.c 78.7 79.7 8c.3 82.8 82.L 82.3 92.'. 87.'. 82.' 82.5 '2.5 82.S 82.5(,E ISL I 61.8 76.3 79'. A1U 62.6 63.5 8'.3 '45.7 66.0 96.1 b6.1 86.1 86.2 86.2 86.2 86.2uE 1:I. 1 I 1.F 76.8 79.7 81.6 83.3 9'.. 65.2 86.6 86.9 P7.o '7.0 67.0 87.1 87.1 87.1 87.1

1,E ILLOI E2.0 77.3 80.4 82.7 P'. P5.7 86.1 58.0 68.3 q8 .7 8q.7 88.1 88.8 '8.8 88.8 88.8.E 9L7 'J 1.,2 '7.'. 87.5 82.9 A'.8 '. ,C 6s.8 R8.6 89.7 89.1 89.2 89.2 89.'. 89.' 89.' 89.'.

6.E '331 ?2.3 74.2 81.' 84.S 66.'. ".0 88.7 90.' 91.8 91.2 91.3 91.3 91.'. 91..1 91.. 91.'.liE 7:1 b.4 78.' 81.7 85 .1 67.5 96.6 89.9 91.6 91.9 '2.' 97.5 92.5 92.6 '..b 92.6 92.6

.. '01 62.'. 78.6 8 2 ., 85.5 f(r,.0 C 9. 2 9-7.3 92., 92.5 92.9 93. 1 93.1 93.? 93.2 93.2 932

-L J C62.' 19.8 82.6 45.9 t8.5 9.9 91.3 93.2 93.5 9'.1 94.4 9'1.' 948.5 411.5 911.S 9'. 5I.E 4,j 62.'q 73.5 82.8 86.. b9.1 qO.8 92.5 9'.5 9'.9 95.6 06.I 96.0 96.1 96.1 96.1 96.1

L.E '11 4. 78,.9 82.6 '.6.6 .4 '11.1 9!.1 9.1 96.3 96.9 97.5 97.5 97.6 97.6 97.6 97.662 2| 6.' 78.9 82.t 86.6 69.' "1.1 I '. 95.3 b. 3 77.3 97.1 98.1 98. 98.7 98.7 98.7

sE 10I 57.q 78.9 82.. b.6 89.' 91..1 9!.- 95. 3 96.3 07.3 96.3 98.3 98.6 09.u 99.' 99.7

i.E 1; (2.4 78.9 82.F 36.6 89. -1.1 93.7 95.3 96. ! 97.3 98.3 98.' 98.7 99.1 99.5 100.0

TOTAL %t.1PE r OF 07'Fr8vA7IOS: 030

L.

UGCLAL CLIMATOLOGY BRAN4CO . PEkCENIAGE FREGUENCY OF uCC1J33'ENCE OF CfILING vrRSUS VISIBILITYuSAFEIAC FRnM 9OUPLY OdSERVATTONS

All? WEATKER SERVICEIMAC

1STA110 NUP7EP: 7212d7 STATION NAME: NIAGARA CALLS IAP NY PEolOO OF RECORD: 78-87

MONTH: PAR HOURSILS;3: 0300-0500

..................................................... ........................... ......... ............ .....CE ItI. G VISIRILIT, IN SlATUYT MILES

IN i 06 GE GE (E GL GE rE GE GE GE CL GL GE GE GE GE

FELT I 1r b 5 4 3 2 112 2 1 112 1 1/4 1 114 5/8 1/2 9/16 1/4 C

NO CEIL I 3L.P '8.9 39.2 39.5 39.7 4C. C 49.1 40.4 40.4 40.4 4 .5 40.5 40.5 40.5 40.5 40.5

.E zCCrO1 39.0 61.2 41.5 41.7 41.9 4i.3 42.4 42.7 42.7 42.7 42.9 42.8 42.8 42.8 42.9 42.4ut 18'L i 7. 7Y 41.2 41.5 41.1 41.9 42.3 42.4 42.7 42.7 42.7 ?.8 42.8 42.m 42.8 42.8 42.8

WC 16cll 39.0 41.2 41.5 41.7 41.9 4Z.3 42.4 42.7 42.7 42.7 42.8 42.8 42.8 42.8 42.8 42.8uE 4CCo1 39. 1 41.3 41.6 41.8 42.0 %2.41 4.5 82. 4 42.A 42.8 47.9 42.9 42.9 42.9 42.9 42.9.E 1 2c O 43.5 42.8 43.1 43.3 43.5 43.9 44., 44.3 44.4 44.4 14.5 4%.5 44.S 14.5 44.5 44.5

GE 1CoI 1.1 43.4 43.8 44.1 44.4 44.7 44.8 45.2 45.3 45.3 14 .4 45.4 4S.4 5.4 4S.4 45.4(E 90UI 14 43 44.1 44.4 44. 7 45.1 4' .2 45.5 45.6 4.6 4S.7 14S.7 45.7 45.7 45.7 s.7

uE bC| 1 47.1 45.7 46.9 46.3 46.7 47. C 47.1 97.4 47.5 47.5 47.6 47.6 47.6 47.6 47.6 47.6-E 7rCC 1 43.3 45.b 46.1 46.5 46.8 47.1 47.2 47.5 47.6 47.6 47.7 47.1 47.7 41.7 47.7 47,7

l tCOI 4-4.4 47.4 48.1 48.5 4 9

. 4S.4 49.5 49.8 49.9 49.9 5".1 5O.0 50.0 0.0 50.0 50.0

4E G. r7 51.8 2.3 S2.5 53.3 5.4 51.8 53.9 53.9 54.G 54.0 54.9 S4.0 54.0 51.0.E 45."2 49.v 5€. 4 56. 57. 58.3 8. 7 56.8 59.1 59.2 59.2 59.4 59.4 59.4 S9.4 59.4 59.46E 4LLC1 Sr.2 6.9 58.2 Sb.7 6.0 6.S 6'.6 b1.C 61.1 61.2 61.3 61.3 61.3 61.3 61.3 61.3.E 7 C7I 51.P 9.6 61.1 62.U 63.4 64.1 b4.? 64.5 64.6 64.7 64.4 64.8 8.8 64.8 64.8 684.8

GE TrLCI 5!7 .2.6 64.4 65.9 67.4 6b.2 69.3 6q.6 68.7 68. 9 69.9 68.9 68.9 88.9 68.9 68.9

L E 2 El 156.3 6.2 6P.4 70.0 71.7 72.5 77.t 72.9 73.1 73.2 7T.3 73.3 73.3 73.3 73.3 73.3bE 2rLi3 Sc.4 71.5 74.5 76.7 78.5 74.2 79.6 60. O0. 4 90.5 8.6 80.6 80.6 PQ.6 80.6 80.8

fE 1 -CC 9.7 72.C 75.2 77.4 79.2 u. i 6.5 91. b1.5 '1.6 81.7 1.7 81.7 R1.7 81.7 81.8,.E ILO1 60.q 74.4 7 .4 1.3 82.9 E3.a 84.3 S.2 45.5 P5.6 @. 7 85.7 85.7 I5.7 as.7 85.8E 1'J 1 1.3 7S.

2 79.4 62.2 S4.3 Z5.2 b6.0 86. 4 67.2 47.3 87.4 87.4 87.4 A?.% 87.4 81.5

*;E 1 2 6 1.4 75.7 80.3 83.2 45.5 t.c 87.4 Pa.3 dh.6 A8.7 8'.9 86.9 88.9 P8.9 88.9 89.0

*cE 9L:' 61.' 76.1 81.8 83.7 85.9 r 7. 87.8 48.4 89. 1 R9.2 8I.5 89.5 49.5 69.5 89.5 89.6

E f1.9 76.2 80.? 64.1 86.5 17.6 83.6 3.7 9G3 90.1 9. 3 90.3 90.3 00.3 90.3 90.4* I.E 7"' 6A 76.5 1 .3 94.7 87.3 18.6 9.0 91.2 91.5 91.6 91. 9 919 1. 9 91 9 9i.0

I:E L 1.7 76.7 d1.6 85.2 87.8 F9.4 91.0 92.2 92.6 02.7 91.n 93.0 93.0 93.0 93.0 93.1

..F L 61.7 '7.1 82.- 45.8 8 .9 1c.1 91.q 93.1 9 . q 3.7 94.1 94.1 94.1 94.1 94.1 94.2,E 0 or (,1.7 77.. 82.2 86.j S.7 9L.5 92.7 93.9 9,4.5 94.8 9 .% 95.4 95.5 95.S 9S.S 95.6(E 'or, 61.7 77.: 9 .2 *6.U 49.8 nC. - 97.9 94. 3 015.1 95.4 9( .5 96.5 96.6 06.6 96.7 96.8

(I 2 .'! 61.7 77 z 82.2 86.L 8.6 90.6 2.9 94.3 95.3 95.4 97.2 97.2 97.4 97.4 9?.S 916

LE Tool I .7 77.2 82.2 66.0 et. 9c . 8 9?.0 01. 3 95. 3 5.9 97.5 97.8 98.4 99.5 98.8 99.5

I'L 01 (1.7 77.2 82.2 F6.U q.P ;,. 8 92.9 o0.3 9. 3 95.9 97.5 97.8 98.5 08.6 98.9 200.0

IOTAL NLME or O 1SERVATIO5: 0r

%L

6LObAL CLIMAIOLOGY BRANCH PERCENTAF FREQUENCY OF OCCURDENCE OF cEILING VFRSUS VISIFILITY

USA# ET AC raoM HOUQLY ObSkRVATIONS

AIR wLAthER SERV1CE/mC

51AIION N'MELR: 725287 STATION NAME: NIAGAR4 FALLS IAP Ny PEPIOD OF RECOPD: 78-87MONTF: MAP 6ORSILSI 1 0600-0800

............................................................................................................................CE IL I36 VISIBILITY IN SIAIUTE MILES

11. | CE GE GE CC GE E GE G GE GE CE GE GE GE GE GE

FEET IC 6 5 4 3 z 1/2 2 1 1/2 1 1/4 1 /4 5/8 1/2 9/16 1/4 0

NO CElL I 26.2 T2.L 31.1 32.5 33.8 !4.1 34.5 14.6 34.6 34.7 34.9 35.1 35.3 3S.3 35.3 3S.%

.E ZCL3 I 2P.0 !3.2 34.3 35.7 37.0 37.3 37.7 37.8 37.8

'8.0 3P.2 38.3 38.5 38.5 38.5 38.6.E 1806 I ?.* 0 '3.2 34.3 35.7 37.U 37.3 37.7 37.8 37.8 38.0 39.2 38. 3 38.5 38.5 38.5 38.6LE 16.CCl 22.8 !3.3 34.4 36.. 37.1 7.74 37.8 38. C 38.0 8.1 39 3 38.4 38.6 38.6 38.6 38.7Gr 14'00Il 2q. 9 13.4 34.6 !5. 9 37.2 37.6 38j.0 38. 1 38.1 Y8 .2 3A?. 4 38.6 38.7 18.7 38.7 38.8uE 12 G1 31.2 34.9 36.0 37.4 38.7 39. 39.5 19.6 39.6 39.7 39.9 40.0 40.2 40.2 40.2 40.3

:IE ICr 31.6 !6.7 37.8. 39.4 40.8 41.1 41.6 41.7 41.7 41.8 4722 42.3 42.S 42.6 42.6 42.6

JE 9 o003 3:.C 37.4 38.6 4c.1 41.5 41.4 42.! 42.6 42.6 42.6 47.9 43.0 43.2 43.2 43.2 43.3V. 8rpi '3.9 '9.7 41.0 42.5 43.9 44.2 44.6 44.8 44.8 44.9 4-.3 45.4 45.6 4S.6 45.6 46.7LE 7oCC I 34.4 40.4 41.7 43.2 44.6 44.S 4S.4 46.6 45.6 45.7 46.0 46.1 46.3 46.3 46.3 46.5

.6 6r03 3s.5 41.7 43.1 44.6 46.2 4. 6 47.c 47.2 47.2 47.3 47.6 41.7 48.0 48.0 46.0 4.1

GE St03

S7.7 44.b 45.9 47.5 49.5 49.6 50.4 50.6 63.6 50.8 51.1 51.2 61.4 61.4 51.4 51.5

GE 9t321 4-.7 47.8 49.8 52.0 54.2 54. 6 5.4 55.6 S6.6 55.7 56, 56.1 56.3 56.3 56.3 56.5

*( 47071 419 49.9 52.0 54.4 56.6 57,3 5.1 58.3 58.3 i8 .4 8.7 S8.6 59.0 e9.0 69.0 59.1GE 3'71C 42.7 11.0 53.7 S6.7 59.5 6.,3 61.4 61.7 61.7 61. 62.2 62.3 62.5 62.5 62.5 62.6*. 3COC1 44.4 53.5 56.6 59.9 63.2 64.4 66.6 65.9 bS.9 66.2 66.6 66. 66.9 66.9 66.9 67.0

C Z'CC 1 46., 6.7 bO.2 63.8 67.4 69.0 7-.5 71.1 71.1 71.4 71.7 71.8 72.3 72.0 72.0 72.2bE 201 44R.4 60.1 62.8 68.3 73.C 75. 3 77.0 77.8 78.1 78.6 74.9 79.U 79.2 79.4 79.4 79.5*E IF L2 I 49.5 b.8 64.b 69.1 74.C 76. 74.2 79.1 79.6 80.1 8r.% 80.5 83.8 R0.9 80.9 8.0(,E 11c 1 57.4 63. 1 67.4 72.1 78.I. 9C.9 82. P4 ,1 84. qS.1 85.4 45.6 85. P5.9 85.9 86.0

,. 17f So.s 63.4 67.8 73.2 78.7 PI. 84.c 85.4 86.8 q6.5 8e.8 86.9 87.2 87.3 87.3 87,4

6E It1 [I 10.6 63.7 6A.3 74.1 79,A PJ. 0 65.1 96.9 67.6 98.6 89.9 89.0 89.4 M9.5 89.5 89 .6E L. I| n.6 64.0 68.6 74.4 80.1 13.3 86.6 87.2 88.0 q8.8 69.2 89.4 89.7 89.8 89.6 89.9

GE FCCI 5-.6 (4.1 68.8 74.9 811.9 4. 4 86.7 88.3 89.0 90.0 91.% 90.6 90.9 01.0 91.0 91.1(,E 7001 67G. 6f.1 6P.6 75.2 FI.1 ?4.7 87.4 *9.C 89.9 91.2 91.7 91.9 92.4 ' 2.5 92.5 92.6GE ( C~I06t2 64.2 69.0 16.6 81.4 45.4 8q.2 90. U 4.9 92.5 93.0 93.2 93.7 93.6 93.8 93.9

GE r.01 5-.6 64.2 69.f 75.8 81.9 pt. 3 8.1 91.c 92.0 9%. 0 94.7 96.1 9S.6 95.8 4.8 96.0,E .0 6I.6 84.2 69.1 75.9 82. 0 i.c, 89.4 91.4 92.7 94. 9.6 95.9 96.5 98.7 96.7 96.9

I.E 'l I Sq.6 64.2 60.1 7S.9 62.r ' E.C 89.7 91.9 91.4 95. 6 96.7 97.0 97.6 q7.7 98.2 98 .4.E C!C 1 *5.6 C4.2 69.1 75.9 a?.r. t. 6 89.e 02.2 93.7 96.8 91.1 97.4 98.3 p8.2 98.7 99.1

I L-1 5,t t. 4. 69.1 75.9 82.0 6.6 89.8 92.; 93.7 956.4 97.1 97. 98.1 q8.4 99.2 99.7

GE I 5',6 64.2 69.1 75.9 82.3 GG6 8.7 p 9q2. 93.? 9S.8 47.1 97.4 98.1 98.4 99.2 1CO.0................................................................................................................................................

IOTAL NUMPFV OF O.SFRVATIO%.: 030

9..

LLPHAL CLINAICLOGY BRANCH P3NCENIAGE FfEQUEJCY OF OCCIJBnEPCE OF CEILING VFRSUS VISI8LLITYUSAFITAC FROM VOUILY ObSERVA9 IONSAIR 6.ATIHEp ERVICLMAC

STATON NUVR[R: 715287 STOTIN NAME: NIAGARA FALLS IAP 14V PEIOD OF RECORO: 78-87"ONTOT,: MAR HOURSILSTD: 0900-1100

CE IL If9. VISI ILITT ZN STATUTE MILESIu GL GE GE GE GE GE GE GL GE GL fL GE GE GE GE GE

FEET IC 6 5 4 ! 2 1/2 ? 1 112 ! 114 1 314 518 112 '/16 11/' 0

NO CEIL I 3l.r !5.b 37.1 38.1 38.8 39.2 39.1, 39.7 39.8 39.8 39.9 39.9 39.9 40.0 90.0 '.0.0

LE 200CJ1 31.q !8.7 '0.3 '1.3 42.0 .cb '2.9 'J.L '3.1 '3.1 q.3. '3-2 .. 2 3.3 4e3.3 .3.34E 18C01 34.C .!B.b '0.'. '.. 4Z.2 '..7 .3.0 43.1 '3.2 '3.2 4'. 3 '.3.3 '13.3 '3.4. 93.. 63.

1,E 161001 34.0 !8.s 40.. 41.4 '2.2 '2.1 '.3.1 43.1 43.2 '13.2 '43.3 '13.3 .3 3 '.3.' . 1 It 3.is.*- 1E.'1lflI 34.3 '9: 40.9 41.d '2.6 43.1 43.4 4.3.1 5 3.7 '3.7 %,.. '.3.8 43.8 '3.9 93.9 '.3.96 . Z 1r'001 35.7 4..8 .2.'. 3.3 '. 4 , 4..9 '.5.1 '.5.2 95.2 '..3 '5.3 '5.3 5.'. '.5.'. 4S..4.

LE 10 i 36.t '1.6 '3.2 '.2 .,9 'S. '5.8 '5.9 '.6.0 4(.o '6.1 '6.1 '6.1 '6.2 '6.2 '.6.2(E 5r LEI 1 !6. 1 '1.8 '.3.'. '. 4-.2 45.,7 '6.l 'b. '.6.2 '6.2 '6.3 '6. 3 '6.3 '.6. '.6.5 '6.5

i,, 8r CC1 3 .?7 43. 3 44.9 .6.0 '6.8 '7.3 '7.6 .7. 7 '7.8 '7.8 ' . . '.8.0 '8.0 '.8.1 '8.1 .8.1.3 7- G1 ?9. ! .5.1 '7.1 '8.3 V) -,0 '.9. E '9.9 s3 .l 50.1 c0. 1 5,.? 50.2 50.2 0.3 50.3 50.3UE 6C31 '., 4.6.3 '.8.0 '.9.'. $.1 tc 51.6 S1.1 51.2 S1.2 51.3 52.3 51.3 S1.' 51.'. 51.'.

uz SrCCa '.. 98.'. 0.C 51.' 52.6 b3. 1 53.' S 3. * 3.7 53.7 53.' 53.8 53.8 53.9 53.9 S3.9UE 4.%pI 1,.S 97.9 51.9 3., 5'.9 S5.6 SS9 56.1 SG.Z 56.2 56.3 56,. 56.3 56.S 56.5 56.5LE4 C' 1 Z. '. 9 , 7.. 4 ,7 5'.S S5.9 '6.6 57.1 57.'. 57.5 57.6 57.7 57. 57.7 57.8 57.8 57 .8* 3'Cn" 4., ' 12.0 54.5 *6.6 SR.[ 59.0 59.' 59.7 59.8 S9.9 60.0 60,0 60.0 60.1 60.1 60.1A 3CC 1 '.S.6 '.6 57.' S9.9 61.7 63.0 63.5 63.9 6'. C 6.2 6'.' 6'.' 6.' 6%.5 6..5 6'..5

2[ 2ri '.7. 17.0u 60.6 63.7 65.6 67.3 69.2 68.' 6e.5 68.7 6'.9 68.9 69.1 69.2 69.2 69.2(, 2"CCI 5C.1 61.L 65.' 68.8 711 7'.2 7S.' 76.- 16.5 76.7 76.9 76.9 77.1 77.2 77.2 77.2.1 1-Il 1.2 2.3 66.7 70,3 77.1 75.9 77.2 77.a 78.3 78.5 79.7 78.7 78.9 79.0 79.0 79.0(-E 102.23 52.3 C'., 69.3 79.1 79.3 1l.8 b3. E4. 0 . R'.6 8 , . I 85.1 50.' o.5.5 85.5 85.5'IF IZL 52.'. C5.3 7!.1 75.' p 7.C 3.6 S 5.7 C6.6 d7.I '. 3 87.7 87.8 88.3 98. 88.. 88..

:.*F Irc C 1 . 65.7 71.4 76.3 b2.I p.1 87.1 89.1 48.6 P9.L 69.7 89.8 90.2 93. 90.3 90.3*,E ' 2; 1:. 65.7

70.8 76.

b 61. S S 7., 88.6 89.2 9.7 9.3 90.' 90.9 91.0 91.0 91.0

bF .3 37,. 65.7 71. 76.1 61.9 f.'. 89.1 89.2 69.9 qO.3 91.1 91.1 91.5 91.6 91.6 91.6;.E 731 S2.1 (5.1 71.1 77. Z; 2.3 ?6. 5 8. 93. 90.6 3 .| 9.,0 92.2 92.6 2.7 92.7 92.7i.3 t % 1' 5.7 71.1 77, 82.'. 16. b e9. 40.15 91.2 '.2. 9A.f 93.5 9'.0 q'.1 96.3 9..3

1 r' S2.S* 65.7 11.2 17.7 b3.2 4h. L 93.. 91.59 92.6 93.2 9.' 9'.9 95.6 95.7 959 95.9LF lo _r S.5 65.1 11.2 77,7 8 4.4 E, . c.q 92. 1 63.' 9%..2 9-.S 96.L 9.68 97.1 97.'. 97.'

i.. 101 S2.1 65.7 71.2 77.7 a 3.' I.3 91,* 3.L S,3.'. 9.,6 96.1 96.1 97.'. q7.8 98.3 98.'1,3 ;C.1 I'* - 61.f.7 712 '7. 7 6;.'. Fb. 3 92. 1 91 9'.c F.* 9.. 97.1 98.0 98.5 99.2 99.'.tE I03 en ,s 65.7 11.2 77.7 b3.'. t.3 I1.' 93.1 94.C 9'.9 9f.. 97.'. 99,3 08.8 99.6 100.0

,.3 1 2.5 cs. 11.2 17.1 83.'. 6.3 12.3 93.2 9.'. 44 N. 96.e 97.' 98.3 98.8 99.6 100.0

...........................................................................................................................................

TTL '.UMbL9 (F OPrRFV'.TI141 93,-

° , ° ° ° ° ° ° '° e ° - '° ° '° ' '' e ' ' ° ° e~ee °' 'ee 9

9,.

-u -

LOAL CLIMATOLOGY PRANCI. PEICLNTAGE FREQUENCTY OF OCCURRENCE OF CFILING VERSUS VISIBILITY

LIS8FETAC FROM I-CURLY 065ERVATIONSAIR w[ATI-Ek SERVICEIMAC

STAT16N NUPE[: 775287 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORO: 78-87MONTH: MAR HOURSILSI: 1200-1400 .

CEILI!G VISIBILITY IN STATUTE MILES

IN I GE Gr GE GE GE LE GE Gr GE (E r GE GE GE GE GEFEET I rP 6 4 3 2 112 1 112 1 1/4 1 3/4 5/8 112 s/lb 19 0

..............................................................................................................................................

NO CEIL I :.' 75.7 36.1 36.2 36.7 36.6 31,8 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9 36.9

.E Z0-nCDI 36.7 41.0 '40.4 '4C.S 1 *1. r) '41.1 4I.1 '41.2 41.2 43.z '41.2 '41.2 41.2 41.2 '41.2 41.2iE 8rvo3j 3h.9 40.4 4C.9 41.0 41. 41.5 4l. 41.6 41.b 41.6 '41.6 41.6 41.6 41.6 41.6 4l.b,'E 1I 00 I 7. 0 4U.b 41.1 41.2 41.6 41.7 '41.7 '41. 8 4 ' .8 41.8 41. .8 '41.8 41.8 '4.8 41.81,E 14r|') 1 37.6 41.4 41.8 41. '42.4 42.5 42.5 42.6 42.6 '42.6 '42.c 42.6 '42.6 '2.b 42.6 '42.6

' 'E 12('01 3c.44 93.1 4 3.5 43.1 '44.1 44.2 44.2 '44.3 '44.3 44.3 44.3 44.3 44.3 44.3 '44.3 '4'43

jr 1.rof)I 4,!. F 44.6 45.1 4S. '45.6 45.7 45.7 45.8 45.8 45.4 S.. '45.4 '45. 45.8 '4.8 45.8Lr 901J '41.3 45.3 45.7 '5.9 46.5 46.6 46.6 46.7 46.7 '46-7 46.7 46.7 46.7 46.7 46.7 46.7

,E 47U:L 4Y '46.6 47.2 47.4 '48.1 '48.2 '4.:2 4.3 '48.3 '48.3 '4.3 48.3 48.3 '48.3 .3 '8.3,E 701 '5.4 '7.5 46.1 48.3 48.9 '4.0 '9.2 49.3 '9.1 '9.1 '.l 49.1 49.1 49.1 99.j '49.1u.E 6' Z0C1 44.1 4.8.2 '4.8 49.0 49.

7 4S.8 49.8 49.9 49.9 49.9 49.9 49.9 49.9 '9.9 49.9 49.9

,£ 51CZl 45.5 -.. 2 51.1 5 52.0 52.2 S2.2 52.3 i2.3 52.3 52.3 52.3 52.3 52.3 52.3 52.3,E '4 . Lr 46.7 -2.2 53.G 53.5 54. 5'4.'4 54.s 514.b 514.6 5%*6 64.6 54.6 54.6 54.6 54.6 S4.6

' E irccl v.' J. 33 54.4 54. 9 55.8 ss.9 56.1 56.1 56.1 56.1 56.1 56.1 56,1 16.1 56.1 5b16E 3.CIC 4'.1 ;5.7 57.2 -7.7 59.6 '8.7 Sp.8 58.9 8.9 59., 59 59.0 59.0 59.0 59.0 59.0*6 3'uci Sz.0 59.9 61.9 62.6 63.9 64.1 64.2 64.3 64.3 64.4 614. s 4.5 64.5 64.5 64.5 64.5 r

21LI1 55.4 64.9 67.4 68.2 69.9 7 .5 70.6 70.8 70.8 70.9 71.3 71.3 71.3 71.3 71.3 71.3uE 2C0J 59.5 7C.2 73.5 14.8 17.1 2 7. 7 19.8 18.8 78.9 71 .O 79:. 79. 79.4 19.4 79.4I.E 18-! 59.4 71.3 75.3 16.7 79.2 01.3 80.0 1.1 81.: '4.2 83.6 81.6 81.6 93.6 83.6 81.6

r 1 coj 51.9 73.3 78.8 80.8 83.7 45.1 96. 86.8 86.R 7. 0 87.4 87.4 87.4 87.4 87.6 87.4

I.E 1IEI 6.r 74.0 79.8 '1.9 84.8 pb.3 b7.6 8a.4 88.5 f6.9 89.4 99.4 89.4 99.4 89.4 89.4

u, I.CI 6 0 74.3 80.3 82.7 as.? '7.4 69. 098 8 9O.c qO.8 91.3 91.3 91.3 91.3 91.3 91.3C 9L1 6: C 74.3 6C.3 92.7 86.7 67.49 80.r 89.6 9.0 90.8 91.5 91.5 91.5 '1.5 91.5 91.5

L.E 'il i. . 74.4 GO.4 '2.9 86.1 49. 1 69.7 90.65 90l.0 93.6 92.5 92.5 92.5 92.5 92.5 92.5;.E 707 z 6 1.1r 74.6 8a.8 83. 3 86.7 Fe8.6 90.4 71. 3 93.5 '12. 6 97.7 93.7 93.R 93.8 93.8 93.8ur c L7I 6c0. 74.6 8 .9 83.5 87.n e.42 91.2 92.t '42.4 -3.t 94. 94.9 95.1 95.1 95.1 95.1

*. III 60 74.b 80.9 83.5 27.3 99.8 91.7 92.9 9 .3 44.9 '.6.1 96.1 96.3 96.s 96.S 96.7

tX 4 c1 t'.F 1 4.6 80.9 P3.7 87.6 C .3 92.5 93.9 94.3 Q6.1 97.3 97.3 97.5 07.6 97.6 97.8LE !7' L, 04 14.6 87v.9 83.7 E 7 .6 93.5 j " .9F 94t.4 944.8 '41.0 995 98.5 98.7 98.9 98.9 99.1 -I.E 2C 1 6'.r 74.6 87.9 93.7 e7.? 9L,.6 92.9 94.1 9.2 97.3 991.8 98.8 99.1 99.4 99.5 99.?

I.Q! I30 oC.C (7 ?6 d0.9 83.7 $7.7 94-.6 92.9 94.17 95.2 97. 3 94.9 98.9 99.2 99.6 99.7 300.0

6E r If1C 7,4.6 sO.9 p3.7 67.7 9L.6 97. 94.7 85.2 07.3 9p.9 98.9 99.2 99.6 99.7 300.0...............................................................................................................................................

0othi, hip4M8E OF OSrRVATIONS: 93b

• .

. . . . a ,,..,_ - llIL $ 4'

GL!!AL CLIP41OLOGY :!Rhfacp PEhCE47AGE FCELUENCY OF OCCIIRPENCE OF CEILING VERSUS VISIBILITYtSFETAC FROM HOUR Lv (ISEPIATIONSAIR E8-CR SERVICEIMAC

STAlION NUrirP: 7?5287 STATICN NAME. NIAGARL FALLS IAP MY PERIOD OF RECORD: 78-8?MONTH: MAR HOUPSILSTI: 150n-1700

LEIL1IkG VISIRILITY IN STATUTE MILESIN I GE GE cc GE GE GE CE GE GE GE GE GE GE GE GE GE

FEET 1 3 2 1/2 2 1 112 1 1 1 / 1 5.48 1/2 '/16 1j9 0

NO CEIL I '2.6 '4.2 39.5 35.1 35.3 35.3 3 35.3 3S3 55.3 35.3 35.3 35.3 35.3 35.3 35.3

uE ,OC ?7. 1 9.1 39.7 10. 11 4 4 4.:1 110.11C 24a 14 401:: :4 11: 111 0o1 :4 1:440.11 11. 43. 0: 10.:LE 1BJII l 37.! !9.S 39. 110.3 10.6 10.6 4c6 .0 .6 10.6 4.6 .6 110.6 b 0.6 0.6 10.6 .0.6GE 16'U91 37.1 !9.6 39.9 604 q 1.C 1.0 11.0 11 . .C . 11.0 411.0 4.0 111.0 11.0 1. 91.0;iE 14Lc'i PC 40.2 10.5 11.1 11.6 41.. 4 1.6 111.6 1.6 1.6 11.6 '1.6 41.6 11 1.6 1.6 #A 1".64E 12rcO 1 39.1 91.5 q1.8 14z. 12.5 42.S 12.9 42.9 12.9 42.9 12.9 92.9 12.9 92.9 92.9 92.9

GE I UncI j4.9 F 3.3 43.a 99.3 41.8 11. .8 41.R 1.8 41.8 1.8 99.8 41.8 44..9 99.8 14.8 11.8GE 9 cC1 41.7 41.3 14.11 15.6 46.1 6.1 116.1 46.1 16.1 46.1 96.1 96.1 16.1 116.1 116.1 6.1I(,E B-CCI 43.2 4. 1 16.7 97.4 98.0 4P.,0 98.0 18.c 4S.0 18.0 4A.° 98.0 98.0 8.0 18.0 98.0

L.E 7CLIl 94.11 47.7 1A.3 99.0 99.6 19.6 19.6 49.6 19.6 19.6 49.6 19.6 19.6 49.6 99.6 9.6

'I f G 0 11.6 18 .6! 19.0 119.8 5.3 50. 3 S0.! SU. 3 50. 3 Sc. 3 S.3 50.3 503 ; 0.3 50.3 50.3

6E SC0'l 46.S 51.3 52.0 3.U 0.7 Si.b 5.8 S1. c 63. 53 . 51.8 53.8 53.8 53.8 53.8 53.8LE 4! 4g.2 .4.1 S.2 56.6 57.2 57. 4 57.1 S7.' $7.9 ';7.,4 57.9 57. 57.4 57.9 57.9 57.9 4

7. 11C.0 '99 058 57.0 8 59.9 S9.7 59.7 59.7 59.7 59.7 59.7 59.7 59.7 59.7 59.7 59.7E 3r L0 1 1.0 59.2 60.6 62.3 63.1 F3. 1 63.4 63.4 63.4 63,4 6.41 63.4 63.9 63.9 63.9 63.9

ut 4 nc: J ss.t A1.9 66.6 68.9 69.6 f9.9 69.9 69.9 69.9 69.9 69.9 69.9 69.9 69-9 69.9 69.9

LE 2!C I 59.1 70.7 72.6 75.1 76.3 77.0 77.3 77.1 77.9 77.9 77.4 77. 77.9 77.9 77.11 77.9(,E 2, kr I.6 711.3 71.5 t .b o7.3 P3., 83.p 83.9 83.9 P3.9 81.9 83.9 83.9 P3.9 83.9 p3.9

*E ICP 6 1.7 71.1 77.7 81.0 62.7 93.7 81.2 1.3 84.3 P4. 3 811.3 89.3 89.3 04.3 89.3 89.3, 1"cr .62.3 76.U 79.6 '2.9 65.6 b.9 87. 87.7 87.7 Fa.r 89.0 88.G 88.0 88.0 88.0 88.0*! lF I 67.6 76.8 ar.9 49.9 c7.3 -9.9 89.6 89.5 9C.U 90.2 9q.? 90.2 90.2 90.2 V0.2 90.2

CIGE it co 8.. 76.9 61.1 89.7 87.8 49.8 90.9 91.! 91.5 91.9 91.9 91.9 92.0 9Z.0 97.0 92.0

GE ; G(o1 62.6 76.9 81.2 89.8 89.1 91.0 91.1 01°5 91.7 q2.2 92.7 92.2 92.3 97.3 97.3 92.3LE .of,1 62.f 77.1 81.4 As.3 69.1 91.8 92.9 93,3 93.S 99.1 911.2 99.2 94.3 91.3 9903 99.3IE 7LPI 62.1, 77.1 81.6 8b.b 89.6 92.4 93.4 914.1 91.3 95.1 95.7 95.2 9S.3 0S.3 95.3 9S.34E rI ( 2.t 77.1 81.6 85.5 69.7 9k.7 93.9 94.5 91.7 95.5 9s.b 95.6 95.7 95.7 95.7 95.7

il S 0I E. *1 77.1 81.6 PS.9 90.3 93.9 99.7 95. 'i5.8 96.6 97.0 97.U 97.1 97.2 97.2 91.2IFr 4C(' I 6.6 77.1 81.9 86.0 90.5 '3.9 9 .5 96.6 96.9 97.6 9-.7 98.3 98.5 98.7 98.7 98.7I.E !r 1 62.6 '7.L 81.9 b.0 9G.6 99.1 5. 96.6 97.2 of).L 90.6 98.7 98.9 99.1 99.1 99.1UE 7Lr| 6.6 77.1 81.9 P6.1 90.8 99.2 95.h 97.2 97.6 98. 99.3 99.1 99.S 99.7 99.7 99.7GE I .I I2.6 77.1 81.9 86.1 9C.8 4.2 9,p 97.2 91.6 48. 9Q .f 99.1 99.S 99.7 99.8 99.8

i. '1 62.6 77.1 o1.9 86.1 90.8 91.2 91,.4 17.2 97.6 8.4 9.0 .('. 9.1 99.% 99.7 99.8 IOCO

............................................................................................................................................

1011L NUMPI q OF CSEP TO JS: 9 U3.

LQ AL CLIMATOLOGY BR dCH PEHCENTAGE FRLCUNc OF OCCUROENCE OF

CFILING VERSUS VISIBILI .,

IJsFETAC FROM -OUOL ObSLRVATTONS

AIR W8EAT-ER SERVICEIMAC

STAION NLIM4P: 7'5287 STAIICN NME: NAGAA FALLS 1JP 6¥ PEp'O00 OF RLCORO: 78-87',NTH MAP8 HOUR ILSTI: 1800-2oQr

1E111.~b VISIPILITS IN 5183117 MILES w

IN I GE GE GE GE GE GE GE GE GE GE 6L GE GE GE GE G EFEET i I e 5 4 3 2 1/2 21 1/2 1 1/4 1 4/ 5/8 112 ri16 1/4 0

Nfl CEIL I !7. 13.4 33.7 4. 1 34.4 3. 5 34 .5 34.5 34.5 4.5 34.5 34.5 34.S 34.5 34.S 34 .5

uE rC !6.1 356 !9.t 4C.0 40.4 41.1 41.2 421.2 41.2 4 1.2 41.2 141.2 41 .2 41.? 411.2 41.2 41.2(,E 180C 36.P 43.1 40.2 4C.b 4 1.3 41.4 41.4 41.4 41.4 41.4 141.4 1.4 41.4 41.4 4 1.41 41 .4

(,E 16-Co 34.9 40.2 40.4 40.9 41.5 41.f6 41.6 4.6 41.6 41.6 42.6 41.6 41.5 41.6 41.6 "1.6i.E 11UC I 31.1 43.8 41.0 41.4 4 .C 4z.. 42.1 42.2 42.2 42.2 4'.2 42.2 42.2 42.2 42.2 42.2I.E 122'gjtI b4~ 42.S 42.7 43.1 4 3.6b 43.1. 47.9 43.9 43.9 13. 9 41'.9 43.9 43.9 043.9 43.9 43.9

6E 110001 40.! 44.S 44.5 44.9 4S.. 45.7 45.7 4S.7 45.7 45.7 4 .7 4S.7 4S.? 45.7 4S.7 45.7A. 9c uGI 4C.. 44.7 44.9 45.4 46.0 46.1 46.1 46.1 46.1 46.1 46.1 46.1 46.1 4b.1 46.1 46.1

U.E 8191 42.2 46.5 46.7 47.1 47.7 4.E 47.8 47.8 47.8 47.6 47.8 47.8 47.8 47.8 47.8 47.8FT 7.CI 43.2 47.? 46..3 48.4 4 9. 44.1 49.L 49.21 4". 49.1 900. 49.1 49.1 49.1 49.1 49.1

!r. hCCI 43.p 48., 49.1 49.6 5U.2 1.3 50.! 53.3 5. s0.3 sn.3 50.3 50.3 S.3 50.3 S.3

If 5t'JC0 4-.! '13.C 53.4 53.9 54.6 4.8 54.8 54.8 54.R 94.e 54.8 S4.8 54.R 54.8 54.8 S4.8.E 4 L C 4 9.1 r 57.1 57.7 8.5 59.S 54,6 59.7 59.9 59.4 59.8 59.8 59.8 59.4 59.8 59. 59.8(.E 4C'OI S'.9 61.0 6f).b 61.5 6?.S 2.7 62.8 62.9 62.9 62.9 b'.9 62.9 62.9 62.9 62.9 62.9

A.E 3'1C 54.2 63., 64.7 65.7 66.7 67.1 67.3 61.4 67.4 67.4 67.4 67.4 67.4 67.4 67.q 67.4i, ,P ors 6." C7.6 69.1 70.2 71.5 71. 9 72.2 72.3 72.3 72.3 7. 3 72.3 72.3 72.3 72.3 72.3

LU 2-1 Eq.9 71.8 73.7 75.2 76.9 77.7 7P.1 79.2 74.2 7P.2 70.? 78.2 78.2 78.2 78.2 78.2UEZ 212 C-2.2 75.6 74e.6 80.4 827.9 t4. 2 84.5 P4. 7 84.7 84. 7 881.7 84.7 44. 7 414.7 414. 7 84.76.E 2A .o I 62.6 76.2 79.1 91.3 43.4 -4. 7 b51 A 854 45.4 A5.4 ar.I 85.4 85.4 45.4 8.4 85.4"r I-.,C 64.V 78.1 81.3 83.7 85.2 .7.5 88.1 88.5 44.5 as. 7 84.7 08.7 88.7 88.7 88.7 88.7Li 1,CC 1 64.2 78.5 81.4 64. 66.9 s8.1 88.6 89.4 89.4 49.6 69.6 89.b 89.6 89.6 89.6 89.6

ir 1.0I L.3 79.1 2,.6 ps.1 -E.0 69.5 9j.3 91.5 91.1 91.7 91.7 91.7 91.7 91.7 91.7 91.7q1 '71 14.3 79.1 8:2. 85.2 8.s1 m4.6 9C.S 91.5 11. 92.? 97.2 92.2 92.? 02.2 42.2 92.2

, 1C 64.7 79.6 83.9 86. C ;.q "2.2 92.! 93.5 93.5 94.1 94.2 94.2 94.7 o4,2 94.2 9, .2

.7 ?;;C 64.7 P0.1 84.. E6.9 89.8 51.b 92.7 94.1 V4.1 94.7 94.8 94.8 94.9 94.8 94.8 94.8LE to1 -. 7 A0. 1 84.3 87. 1 90.3 9z. 3 13 .0 74.9 9c.2 I5.4a 96.C 96.11 5~ 96.0 9 6.0 96.0 9-

L, rf 64.7 40.1 84.3 !7.2 9

1.] 3.c 94. 96.1 96.3 47.0 97.3 97.5 97.5 91.5 97.5 91.5

r 41 64.7 a. 1 84.4 P7. 91.6 "! b 95.1 97.2 97.5 98. 98.5 98.1 98.7 96.7 98.7 98.7

Q7 'CCI 64.? 80.1 84.4 87.6 91.7 949.1 9.6 97. 9E .1 8.7 99.0 99.2 99.2 99.2 99.2 99.2

!,I L1 7. 7 .1 84.4 97.6 91.7 94. 95.6 97.5 )9.1 48.7 99.2 99.5 99.S 99.5 99.5 99.5

C 21.1 to.7 R . 64.4 7.6

91.7 94.1 '5.6 97.5 90.1 98.7 95.2 94.6 99.6 99.7 99.7 99.9

(4 7 ..7 1 44.4 0|.6 917 54.1 95.A 17.5

9P.1 98.7 )q.2 99.6 99.6 99.7 99.7 IOO G

OTAL N-MPLP Of O!'StVA8ICkS: 93c

I 4

__ _ _"

GLOBAL CLI"AIOLOGv BRAN0C8 PERCENTAGE FREQUEJNCY OF OCCLHENCE OF CELOING VERSU5 VISIPILITY.SAFLIAC FRO 5-06QLY OESERVAlUNS0A2R 1FAIHEI S[RVIC[IMAC

STATIO7 1 NUIn[P: 7.5267 ST1IC NAME: %IAGANA FALLS IAP Ny PL'IO0 OF RECOPO: 78-87ONT: MAP OUR(1571: 2100.2300

L(.L1.19 VISIPILITV IN STATUTr MILCSI 24 L GE rE GE GL GE GL G GE GE GE 6 G GE GE 66E

FEET I Ir 6 4 4 3 2 112 2 1 i/2 1 114 I 3/4 5/8 112 '/26 1/4 0

:,0 CEIL 1 34.1 77.L 37.4 37.s 37.8 '8.c 3-.3 38.4 30.4 !8.4 3".4 38.4 38.4 38.4 38.4 38.4

r,.E 2UVU:'1 37.4 4C.9 #41.3 41 q 41.1 '.1.8 4?.2 42.4 4 4 7.4 42.4 4 2.4 42. 4 42.4 42.4 %2 4 2 .4(,E I of O3 37.4 4C.9 41.3 41.4 41.7 41,8 42.2 42.4 %2.4 42.4 '$,- 4 .4 42.4 42.4 42.4 42.4.1 I 6^L:" 37.4 40.9 41.3 41.4 41.7 41.8 412. 42.4 142.. 42.4 42.6 42.4 42.4 42.4 42.4 42.4*,E 14'OO 37.8 a1.k 42.6 42.2 4?.s 4k.6 42.- 43.1 43.1 43.1 4 3.1 43.1 43.1 43.1 43.1 43.1LI lrLI 3q. II 43.1 4Z.3 42.4 42.7 '12.8 43.1 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3 43.3

17 irC7 3, 43.3 43.9 44.L 44.3 4.4 44.7 44. 9 44.9 44.9 44.9 44.9 44.9 44.9 44.9 44.9-E 9!G!1 39.7 6!.9 44.5 44.6 64.9 41.1 45.4 46.6 46.6 4S.6 14'.6 45.6 45.6 4S.b 45.6 45.6

iE 8'0ZI 421. 4S. 46.6 46.6 46. 47.C 47 .3 t7. 47.6 47.5 47.6 47.5 47.6 41.S 47.5 17.E 7, 0 I% 3.u 41.T 48.4 b.S 48.b 4b.9 49.2 49. 6 49.6 49. 49.5 49.5 49.S 49.5 14.S 49.5.6 6rx.1 4 r. 48.9 49.6 49.7 6.0 1:. 1 67.4 60.6 b0.6 C.6 50.6 50.6 50.6 50.6 50.6 SG.6

1,E SLI 4C. .e 7.3 54.0 54.1 54.4 4. 5 54.8 6. .1 S.1 S.1 59.1 56.1 55.1 95.1 5.1 65.GE I' 0I tn.3 '9.4 6C.1 60.2 60.6 (0.8 61.1 61.3 61.3 61.3 61.3 61.3 61.3 61.3 b1.3 6I.3t,[ i:0ix1 &2.S 62.5 63.2 63.4 63.8 t4.1 648- 64.8 64.8 64.8 64.8 64.8 64.8 64.8 64.8 64.8A c 3 0| 5. L 5.1 6S. 66. I 6.9 7.3 67.8 68.4 b8.4 6A.4 64 A.4 68.4 64 68. 6.4 68.4E J I 57.6 66.1 68.9 69.9 70.6 71.1 32.6 72.2 72.2 72.2 77.2 72.2 72.2 72.2 72.2 72.2

17 f -. sI t 74.1 74.9 76.1 76.9 77.3 7q .1 78.5 7q.s 78.5 78.t 78.5 75 78.6 78.5 78.5

E. 2'l C2 4.6 77.3 79.5 41.i6 82.2 IZ. 7 31.4 44. L 64.0 84.0 84.0 846.0 94.0 84.0 84#.0 84 .0-r l9.Al t,? 77.9 80.C P1.5 82.7 A3.3 8.z 84.7 84.7 P4.7 84.7 8l.7 84. 8,74.7 8.7 84.7*Z,- 1'C (1.6 7.c 6. 8 .P, 64.6 #.4 d6. 87.1 67.1 47.1 87.1 87.1 47.1 p7.1 87.1 87.1

c7 I.ni c.6.p 79.4 81.1 p3.4 8S.6 4.7 b7.7 f 6 8.87 S8, 88.% .9 869 880.9 5. 9 88.9 88.9

A I' LWIt 6.6 h1.3 8 .f 7. 84 86.7 . . 6 88.9 90.1 9.1.2 9C. 4 9.14 90.4 93.4 90.4 90.4 90.4.6 1A C6. 6 01.e 3 92.p 94.6 86.7 '7. 8a9. 9 "0. 1 90.7 90.5 9".o 90.5 9.9 90.6 9n.5 90.6,[ 9J6. 8. 86.2 a I. I 8 ..2 z.L .4 91. 7 9 .9 92.3 97.5 92.5 92.s 0.5 92.5 92.5

1 7L': I7.2 1 "1.2 64.1 86.6 68.4 P9. 6 9'1. & 92.L V2 ; .3 92.c6 92.14 92.9 92.9 92.9 92.9 92.9t 72 (: .1 '1.3 84 .41 87.u 69.0 ',1.2 912.6 91., 9 3 .4 Q3j5' 94.2 94.1 94. 1 94.1 94.1 94.1

b6 .61. -1.4 a 4.6 s 7.7 89.s6 q L. # 97.4 4. 1 94. 3 94.6 94.9 940.9 14.9 94.9 V14. 9 914.9I&7 4LC1 (7?.2I '2.8 64.6 87.3 8 9.9 "1.2 93.2 ;.5 lo6.7I 96.L. vf1.5 96.5 96.5 96.5 96.6 96.6IF 0C01 671 '1.4 44.6 87.5 90.3 .4 9,4.6 97 . 97.4 97.7 9.2 98.2 98. 98.2 96.? 98.2ur 7 C I L.. 1 1.4 b4b . 7. t 93.4 . .. 6 94 .1 97.4 47.6 78.0 94.% 989. 98.S 6.6 . 98.6L I.^I fF.I . 1.4 84.6 47.6 90.4 0.. %4.8 91.4 v7.7, 1h.1 I ' .7 98.8 98.9 99.2 99.7 99.9

1,E t 67.1 , . 84.4 87.6 01.4 14.6 V4.6.1 9Y.4 97.7 8.1 9.*7 98.8 98.9 99.2 99.7 5730.0

............................................................................................................................

10VAL KUPt1. OF O'SfRV871041: 930

6-L01AL CLIPATOLOGY l'R8IdCE PEhCENTAGC FFCOUEPJ.8 OF OCCURENCE OF CUIL14G VrRSLS VfISZILITYUSAF6,AC FROM HOURLY C85E8V8 730195

* AIR wFA1H6R SERVI.OE/,AC

S7611(6 NUM1i'LR: 7'5?87 SIATICI NAME: NIAGARA FALLS I AP Ny PERIOD OF RECORD: 78-67MONHiII MAR HOURSILSTI1 ALL

14 GL ot G GE 316 6E (It G GF 6L GE 6 E 6 GE GE GE G EFELlI 10 6 5 4 3 2 11Z 2 1 112 1 111& 1 3/4 5/8 112 -116 1/4 a

..............................................................................................................................................

1-.0 CEIL. 1 !2.71 '5.t 36.2 ?6.7 37.1 37. 3 17.r 37. 7 3 7.17 37.7 31. 7 37 .8 17.8 37.8 37.8 37.8

S' I~f'ijcl 36., '9.3 39.9 90.5 43.0 91.2 9 1 .3 43.5 '1.5 91.6 41 .6 941.6 91. 7 91.7 91.7 9s1 .7t.0 180001 !6.1 '9.9 901.1 %U.

6 41.1 91.3 42.5 41.7 91.7 41.7 4.7 41.7 41.8 91.4 91.9 91.8

.1, 1(,f cr' (3.2 1 '3.1 90.2 90.7 41.2 91.9 91 .6 91.b 91 .' 911.8 92.9 91.9 941.9 91.9 941.9 901 .9t6 14.1CI 36.9 4Z~ . 4.6 91.1 91.7 91.9 4.r 92. m 9 2.2 92. 3 4.7.3 92. 3 42.9 '2.4. 92.9 92.9

tr17- Do7 '7. 6 91.5 47. 4-5 41j 3.U4-2 4 T.'. 93.6 913.6 93.6 3. 7 9#3. 7 91. 7 93.8 983.8 93.8

(,r I10r'Q'I 3.. A 92.7 913.3 913.9 99.9 69. 7 49.0 9s. 1 915. 1 9.1 9'.2 95.2 9S.2 945.2 45.2 95S.2(11 q32CT 3q. 2 93.2 9 3.9 99.5 4 ., 91. 3 49!;.4 1. 7 95.7 91S. 7 4c .8 91.8 1.9 91.9 9S.8 91.8

GFE b-LC 4 r.~ .1.7 96.. 9 6.9 97.1 97l b 3 4.3 97.1 978.6 974.6 9 9 7 1. 497.7 49 .9 97.7

9E6 o4:.- 47. 3 9F.2 98.7 949.9 4S9.6 4 SO. 0 10.C 10. S $1.1 . I S 0.2 10.2 10.2 5r0.2

,.i 1-1/ 9' 5 ' :11. 12.:1 52.9A 13.1 13.7 53. 5 ,. 5 13.;s6 5;.6 13.7 53.7 "3. 31 53 3.16.E .,rl 96. 139 5.0 '6.U 57w .7. 3 17.6 51.8 17.98 17.8 57.9 5 7.9 18.0 1.0 58.0 18.0

E6 4 C-, 4 .3 E5.9 C.1. 5,8.3 10. 3 19. 7 67l.0 63. 3 6-.3 60.9 61.9 60.9 60.5 60.5 60.5 60.1,F 3'.-1I W. 2 b6.9 b '.C 61.3 67.S 6 7. 63.9 63. 1 613. 7 63.R b!.9 63.9 63.9 63.9 63.9 63.9(.1 ~. 3LL 2.6 (2.1 63.q 65.b. 67.0 07.6 68.0( 68.3 8. 69.1 68.6 68.6 69.6 6.6 b68.6 68.6

Z'6 "L0 5I.# (6. 3 601.6 70.9 77.2 ?3. f 73.1 75. 9 79 .7f 79 .1 79.2 7.2 7,4.3 79. 3 79.3 79 .3.16 2'C7I S.. 70. t 73.6 76.1 7A.2 79.15 a 9. . 81. 8 6-.9 921.0 826.2 P2I. 2 81.2 Oi1. 3 81. 3 61.3I.E 171, - 59. A 71.. 19.9 17. a 79. 3 K0.6 6 1.9 82. c 1- 4. 1 91. 3 82.9 82.9 82.5 012.S 82.5 E2 .5ic I 1l 19.7 33.21 16.9 79 .9 9'? 9* 61. 96.1 ob.1 6. 3 96.5 86.7 86.7 86.9 96.6 86.9 a6.$1'r 1269 1 50.6A 73. 7 77?.6 80.8 , 3. 1 Ps. 7 86.F -7. 1 6 .9 08.z2 8'. 68. 88. 5 88s $. 5 89.5 88.6

i'E 6 Z,7;I t, . r 79.21 78.31 al.7 1 s Q P6. 9 8".2 P9. 2 89.5 90.0 9'.2 90.2 90.3 90. 90.9 90.91uf 1 6%C 79.2 7e8.9 92.9 85. 1 P73.1 69 .9 89.5 89.9 91, .3 9r~.6 90.6 90.? 90.8 90.8 90.8*,E :31 60.2 1 9.5 79.9 92.7 66.2I 88.3 89.7 90.0 91.2 91 I s,1 9. r 92.1 92.2 92.2 42.2 92.2

* I. 7 . I -. 2 79.7 79.2 83.G 86.6 Fi6. 9 93 . 13 j. 1 92.. C z. 7 9'.1 93.1 93.3 93.3 9 3.3 93 .3:IF f LI 6 0.2 791.6 79.4 43.3 66.9 AS.94 i 91 92.9 92.8 9!.b 991.1 991.2 99.3 991.9 99.9 99.91

'1 I t-.2 749 79.5 03.b 81.1 9E. A 92.1 93.1 9p3. 9 94.P 91 .91 95.5 95.7 95.8 91.8 95.9G[6 9 .P 61.7 79.9 79.6 83.8 8 7.1 "0.6 9.1.7 996.9 91. . r a-5.9 94.6 98.8 97.0 07.1 97.2 91.2I.E t2 (1.21 31.9s 79.b 3.9 £9.0 1,1. C 9!., 91.0 9y. 7 96. 7 97.6 97.8 194.0 96.2 99. 3 98.9

G 2C !. 7 7%9.9 79.6 83.9 A q .Z, 2 .0 9 1. ! 91.2 9,.- '7.3. 98.2 98.S 98.71 .4.9 99.0"T 2i I6.,' 4 '9. 79.6 83.9 F. 111 . c 3.3 751.2 96.0 '7.1 99., 98 .4 98.8 99.1 99.5 99.6

'r I9 I ,. 79.9 I'.b A3. g 0 8. 0 11. c 3 q 3 gel.2 9 6

. j 97.1I 90.2 98 .9 9R9 99.1 99.5 200.0

1031 r.1 PIEI O 1 8vA I130%% 744

GL(L At CLIMATOLOGV 661NCH PEkCNTAbr FRGUE NLY OF U CCUROtE 3L OF CFILI NG VF1N31S VIS181LIVLSAFLIAC rPO" HOULY OdStLPVATO65AIR 3fATFER SERVICE/MAL

SY ATIch h1XIOPE: 7252?6 S T9IICN hAA.[; NIAG161 FALLS 1Ap NV P1010O Of Q93oN0: 78-87 6-Pnkll-t APRt OURS(LSTI: 0030-0200

..................................................... ,........................................CE ItI6 1 3SIIILITY 1I -;8u3 STAT 311!t4 I C G[ GE bF 61 0F G6 E W E Gr G E 03 GE 6 6 GEFEIL I 1 8 3 112 3 12 1 1/8 1 31/ 58 1/2 ;fi6 1/4 a

..............................................................................................................................................

No CEl I m?.1 4.4./ 85.a 85.9 86.0 8t.0 86. 86.1 b . 1 6.1 86.1 16.1 46.1 46.1 86.1 86.1

.1 ... CI .4 S0 46. 41.% 81.6 8?.7 87.1 8-. 81.h 41.R 7.8 1.8 47.0 81.8 1.8 81.6 %1.8uE 11 0| 1 *. '4.6.4 871 1.6 81.7 a.17 81.R 87.6 41.8 8?.p 1. 1.8 87.8 7.8 87.8 81.8LE I L' COI 4.7 F . 87.8 1.6 87.1 81.1 17.6 7., 81.4 41.8 ?.8 41.8 81.8 87.8 87.8 7.8LE I0 4Cr,~ 13.9 86.1 7 81.1 7 87.8 41.5 87. 9 88.? 88.1. L 85.0 40.0 %88.0 818.0 48.0 418.3 188.0 816.0uE ?2-fl 85.0 %?.8 48.b 86.9 89.0 49.0 c %.3 89.1 q .1 89. I Q.1 89.1 89.1 89.1 491 89.3

LI 3IrC3I 86,6 89.6 50.6 'o.9

51.0 53.0 51.1 %1.1 53.1 "1.1 51.1 51.1 51.1 ;1. I S. 51.1t1 9 tC1 47.6 1.6 51.6 S3.7 51.8 !1.6 51.9 51.5 5.9 S1.5 S1.9 51.9 51.9 81.9 51.9 51.9

LE 08'LC :. 1 58.1 58.2 54. 3 8. 3 58.8 58.- 54.8 8.8 54.48 58.4 58.8 88.8 S8.8 58.8* L, 1c 0 1 ' , . 58.7 85.8 16.0 86. c S6.1 56.1 56.3 1 6.1 56.1 56.3 S6.1 S6.3 56.1 $,**. 6-LCI W.8 IS.9 57.1 S7.2 57.8 S7.8 57.6 57.b 57.6 ,7.6 57.6 S.8 57.6 87.6 57.6 51.6

.F 5!.CI 57.1 c3.8 62.b 63.U 63.3 t3. 63.7 63.1 03.7 63.7 61.7 63.7 63.7 03.7 63.7 63.?.E a5? s 10f .2 C5.9 61.2 61.7 68.C 68. C 68.3 68. 3 69. 3 68.3 6e8. 68.3 68.3 68.1 68.3 68.3E 6ct2.a, cii. 2 70.0 10.6 71.0 ?1. C 71.3 71.3 71.3 71.3 73.3 1 1.3 71.3 71.j 71.3 71.3

LE 3' L ' ?. 72.L 7 .9 71.8 15.8 7S.8 18.9 75.8 75.8 7s.8 7s.6 75.8 75.8 75.8 18.8 s .8tb. 3:0 Ie R.1 75.7 78.c 79.1 79.8 71.8 80.1 80.3 83.1 6U.1 80.1 80.1 80.1 80.1 80.1 80.1

UE -L" 1 7!. 7 7A.9 81.81 2. 83.6 93. 6 8.9 93.9 83.9 01.9 81.9 83.9 83.9 P3.9 8!.9 83.9(.C zP..j 13.9 '0.8 83.9 95.8 66.8 44'.6 86.9 86.5 b6.9 R6.9 86.9 86,9 86.9 86.9 86.9 86.91, IE-1 72.7 1.. 88.8 6.0 F1.I 7. 3 87.7 87.7 87.7 1.77 y.?1 87.1 897. 87.7 87,? 01.7.1 1 L . 71 7.| .8 85.% 87.7 88.m -9.2 89.6 89.6 89.6 R9.6 89.6 89.6 89.6 89.6 89.6 89.6IF LEllI I'F :.I.6 87.L 9.0 92.3 0.8 91 I 1 9. , 91.1 91.3 91.1 93.3 91.1 93.1 91.1 91.1

I. LC 78.. .C 87.7 69.6 93.1 ').. 92.6 92.7 9. 1 Q2.1 9'.? 9Z.7 92.7 92.1 92.7 92.7 b1.E 8y3 7a., -4.0 871.9 9C.3, 93.6 ;.1 92. 92. 9 92.9 93 . 93.0 93.C 93.0 %3.0 99.0 93.0Li: 6003 718.3 18.3 am8.1 9c .6 9?.1 -... s 5.% 9!.?7 9 3.1 93ft9.6 9 S.893. 93.8 93.8 91.8 93.86E 7 r 1%.! '8.3 88.8 91.8 93.1 q.o 94.89 95. 95.S. a. 9' .1 95.3 95.1 95.3 95.1 95.1

70. Io1 3 OR 8.7 93.9 9 1. t '8.8 580;. 9s.5" 96.11 96.1 s6,. 1 96.31 96.3 06.1 96.3 96.1

L 'r i 8.' 1 . a. g u .z 92.e 94.( '1.9 5'.9 "G. 7 96.P 96.9 96.9 96.9 96.9 96.9 96.9 98.9.C 4I 1. 1 ' 4* *b

89.L %2.8q 8.2 is . 96.9 97.1 51.8 '1.9 91.8 97.9 97.9 91.9 97.9 97.9

u. !.01I 74 3 8.8 89.13 92.4 98.7 %. 0.8 97. 98.2 99.3 18.8 98. 988. 98.8 8.84 98.8 98.9tF 11.1 78 3 -. 89.'. 92.81? .93 '5.1 ,6 Q.4 v6.p 1 9.1 99.2 99.8 99.6 99.6 99.6 99.6,.E 1Ior

I 78. '. 89.(, q2. '1.! S .7 97. a8. 9R.p 99.3 99,! 99°b 99.1 99.? 99.? 99.9

Li 1* 7e. -. b s9.1 C2.8 58.3 '8..7 97.6 9.8 88.p 99.3 9q.3 99.6 99.7 99.7 99.8 300.0

OTAL %L0.PL9 P.F UOSE&VAIOIS: 820

L

GLCOAL CLIPAICLOGV RRANC4 PEkCENIAG[ FFECUENCY OF OCCIPIIECE OF CrILING VrRSUS VISIBILITYUSAF I TAC FRoM HOUQLY CUSLRV'ITONS

AIR WEATHER SFRVICE/IAC

STATIOh NUPISS: 71567 STATION NAPE: NIAGARA FALLS 3AR 67 PEPlOo OF R[CORD: 78-b?

8ON71: APR I-OURSILSTI: 0300-0500

¢(I~t: VI1ILITY INi SIATUlE MILES

V. I c3 GE GE GE GE (E GE GE GE GE GE GE GE GE GE GEFEET 1 1 6 5 4 3 2 11£ I 1 1/ 1 1/4 1 1/4 5/8 112 ;/16 114 0

N0 CElL I 7.' 41.6 42.3 42.7 '2.9 42.9 43.1 43.2 43.2 43.2 41.2 q3.2 43.3 4.3 43.3 43.3

..t 2 .c cc I !1 . p 43.? 44.4 414.8 45.0 45. L 45.2 45. 3 45. 3 45. 3 45.3 4S . 1 45.4 45.4 45.4 4.GE 13 -. 4-.!' 43. 44.7 4! .a 4S.2 45.2 45.4 45.6 45.6 US.6 4'.6 45.6 45.7 45.7 4.7 4S.7

$1 E cI ;1 40. C 43.i. 404.7 45 .13 %5.? 45.2 45.4 45.6 45.~6 45.6 %'.6 45.6 45. ? 45.7 45.7 45.7LE 3. I 4 2.' 41. 4.: 45.C %5.3 45.6 45.6 45.3 %5.~ 9 '5.9 a.9. 4- .9 4S.9 46.0 46.0 46.0 46.0t.E I.' .71 41.2 45. 46.0 46.3 46.6 4L.6 46.e b.9 46.9 46.9 46.9 46.9 47. a 47.0 47. 47.0

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6OUPLy ObS(9981?06'.

Air3 .181698 SERVICE/IMAC

STATION NUP'fLR: 70^5.8S STAY ION NAME11: 14186813 FALLS I A NY PERIOD Of RELCORD: 7a-87404761 APR I-OUqS(L9rl: 0600-0800

CE ILI -i, VIII1L17Y1 IN STATUTE MILES

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F

GLOAL CLIMATOLOGY rRANCH FECE!JTAGE FRECUENCY OF OCCJRQENCE OF CEILING VERSUS VISIPILITv

LSAFETAC FROM CUPLY ObSERVATION!

AI R

JATFFV SFRVIZE/MAC

STATION fIUM[R: 725267 STATION NAME: NIAGPPA FALLS IA r.1 PERIOD OF PECORO: 78-87

MONTH: APR HOUPSILSTI: 090-1100......................................................................... .. . .............................................CE 11lb VISIPILITY 1 N STATUTE MILES

liJ i 5£ GE GE GF GE (,E GE GE GE GE GE GE GE G1 GE GEFEET I 1: L 5 4 2 112 2 1 112 I 1/4 1 '/4 58 112 $11b 1/4 0

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1O IL %lIMtEO F 1SEPVATIOTS: o 9L

.. ... .

bLILAL CLIMAIOLOGN bRAiNCH PE4CENIAGE FRELUENCY OF OCCUiE ENCE OF CEILING VERSUS VISIBILITYLSAFETAC FROM 80'PLY ObSLRVATIONSAIR wEATPEp SERVICE/MAC

SAIIO0 NUM9iR: 725287 SIAIN NAME: NIAGARA FALLS IP NY PEPIOD OF RECORD: 78-87MONTH: APR HOURSILSYI: 1200-1400

...........................................................................................................................................CEILIPG VISIP1LIT 1I STATLIO MILES

I I cE GE GE GE GE CE GE GE GE GE GE GE GE GE GE GEEEC 1 12 1 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 . 16 1/4 0

............................. ......................................................

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0 55.0 55.0 55.0 55.0 55.0 5. 0 55. 0 55.0

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(E IG -G I 76. ! S.0c 83.9 91.1 S2.1 '2.7 93.0 93., 93.1 93.3 97.4 93.4 93.4 93.4 93.4 93. .:GE 311 76.4 88.2 90.1 91.3 92.4 c3. 1 a 9.3 93.3 93.4 '3.7 9'.8 93.8 93.8 93.8 93.8 93.8CE 4 76.6 'a.4 91.3 91.a 93.0 13.7 94.r 94.0 94.1 q4.3 94.4 9Q4.4 94.4 94.6 94.7 94.7* G 7G0 I 76.F 16.9 9r.8 92.6 93.9 ;4.6 94.9 74.9 95.0 15.4 95.7 95.7 95.7 Q5.8 95.9 95.9

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1OTAL NUM, L' OF 0 SERVATIONS *L42

GLOBAL CLIMATOLOGY PRANC PE8EENTAGF FrEGL'ENCY OF OCCL'RT[EK OF CEILING YFRSUS VISIBILITY

uSAFETAC FROM I-OURLY OdSLRVAITONSAIp .JATHER SrRVICE/MAC

ST AT1N IJUM9E: 7: 526 7 STAT I Ct NAME : NIAGA A F ALLS IAT tiY PL IOD OF RECORO: 78-87MONTP: APR HOURS(LSTI: 1500-1700

C ILINiG VISIRILITY IN STATtE PILES

IN JGL GE GE GF GE GE GE Gr GE GE GE GE GE GE GE GEFEET i 12 6 5 4 3 2 112 1 1/2 1 1/4 1 '/4 5/8 1/2 /16 1/4 0

NO CEIL I !9.E ;I. 1 4 . q 41.b 41.8 41.8 41.9 41.b8 11.8 41.9 41.8 41 .8 4118 41.8 41.8 81.6

LE 2?CCj 44. 3 495.9 46.5 46.7 46"7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7 46.7GE 16-CC1 48.( 46.f 47. ' 47.3 87.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3 47.3

6E IbCC' 4' .1 b.7 '47.1 47.4 47.4 47.4 47.4 47.84 47.4 47.4 47.4 47.4 47.4 47.4 47.4 47.4

[ 1.0C3I 46.1 47. 7 4 .1 '48.4 419.4 4E . 9 '4.4 48A.4 49.4 48.8 4A.4 48A.4 48.4 68.4 '4.4 48.4LF 12'C0I q-.3 52., 50.q 50.9 50.A 50.9 50.9 50.9 50.9 -0.9 59.9 50.9 50.9 50.9 50.9 50.9

6E 1: 0j 9.9 51.9 52.3 52.9 52.9 2.9 97.9 92g. 52.9 92.9 57.9 52.9 52.9 S2.9 52.9 52.9

UC 9'2 11.4 53.4 53.9 54.4 54.4 54.4 4.4 54.4 54.4 58.4 54.4 8 59.4 4.4 S94.4 58.4 58.4L.E 8[CO 53. 16.3 56.9 57.4 7.4 57. 57.4 57. 4 57.4 57.4 57.4 57'4 57.4 57.4 57.4 57.4C,- 7 7. L u I .S 4 '7.9 58.4 59.1 59.1 5.1 59.1 99.1 59.1 59.1 59.1 9.1 99.1 19.1 59.1 59.1

(E 6'UC 56.2 '8.7 59.2 59.9 59.9 59.9 59.9 59.9 59.9 S9.9 5q.9 59.9 59.9 59.9 59.9 59.9

IE 5302 5?.R (1.9 62.4 63.1 63.2 u3. 2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2 63.2GE 4 56' t1.1 t4.7 69.2 66.1 66.3 Lt.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.3 66.39,F 4CC1 c2.' 66.6 67.6 68.6 68.8 (b.5 6A.9 68.i 68.9 68.9 68.9 68.9 69.9 68.9 6q.9 68.9(E 3 C I .r 70.8 71.7 72.8 73.1 13.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2 73.2GE 30 0 6'1 7 3.6 75.U 76.2 76.6 7c.e 76.8 76. 9 77.0 77.0 77.0 77 . g 77.3 77.0 77.0 77.0

Ir Z r. 7?.F 79.4 81.2 P2.6 t3.2 P3.6 83.6 33.7 43.8 83.9 83.9 83.9 83.9 83.9 83.9 83.95 ,rG. 76., -3.8 85.8 87.3 69.1 ?8.7 84.9 98.9 89.0 99.1 89.1 89.1 89.1 19.1 89.1 89.1

I.E 1'' 76.7 ^#'.8 86.9 96.4 89.3 9.9 90.2 90. 1 90.2 90.3 9).3 90.3 90.3 90.3 90.3 90.3.6 1 I 77.' 96.1 88.6 9C.2 91.2 ,1.6 92.0 92.1 92.2 92.3 92.3 92.3 92.3 92.3 92.3 92.3

UE 1? ,1 77.3 16.7 89.2 91.L 92.2 82.8 93.0 93.1 93.2 q3.! 9T.! 93.3 93.3 93.3 93.3 93.3

(.6 1 , C 77. f 7.2 90.3 92.3 93.7 94.2 94.6 98.7 94.A q4.9 98.9 94.9 94.9 94.9 94.9 94.9b6 'LCI 77.7 '7.4 90.6 q2.6 94.0 '.7 95.1 95.2 99.3 5.4 95.4 95.4 95.4 95.4 95.4 95.4

EU Is" 77.1 '7.6 90.7 92.7 94.2 1,8.9 95,4 95.6 95.7 99.8 9S.9 95.8 95.8 95.8 95.8 95.8

uE 7L5 77.9 '6.1 91.8 93.7 95.3 "L.2 96.q 97.3 97.2 97.3 97.7 97.7 97.8 97.8 97.8 97.8bF (-CO 77.9 e.1 91.6 93.9 95.7 96.6 97.6 97.6 98.0 98.1 9-.4 98.4 98.6 98.6 98.6 98.6

6E r or 77.9 '8.1 91.6 ;4.C 95.8 '7.2 99.2 1.6 98.8 99.1 9-.3 99.3 99.4 99.4 99.4 99.4

GE 9-31 77.9 ''.1 91.7 94.1 95.9 97.6 90.4 99.L 99.2 09.4 99.8 99.8 99.9 99.9 99.9 99.9

GE 3Lr 77.9 18.1 91.7 99.1 96.0 "7.7 9F.6 99. 1 99.3 99.6 99.9 99.9 100.0 100.0 100.0 100.0(E E lI 7 '. .'9.1 91.7 941.1 86.: .7.7 99.6 99.1 9.3 99.6 99.9 99.9 100.0 100.0 100.0 200.0f(. ICr3 77.9 . 91.7 94. 96.0 ?.7 99.6 99.1 99.3 99.6 9q.9 99.9 100.0 IO.0 100.0 100.0 8

IE 1 77.0 -S.1 91.7 94.1 94.1 U 7.7 94.6 99.1 99.3 99.6 9'.q 99.9 530.0 10.0 130.0 100 .0

TO IAL hM"E" CF UnS[VATIONS: 9uU"

.L

K

GLrObAL CLIPAIOLUGY BpAnFC P[.C[NfArE FkFELENCY OF OCCL'REf.CE OF CrILING VFRSLVS VISIBILITYUSAFEIAC FROM FOURL 05LRVATION5AIR , F ATHER SERWICE/?'L

STATI04 NUM4ER: 775247 1STAI C NAM: NIACAA FALLS [AP f;Y PERI00 OF RECORD: 78-87MONTF: APR

6OU9SILSTI: 1830-2000

CEILI VISIPILirV IN srAruTr MILES

11 I 2E OF Or GE GE GO OL GF GE SE SE GE GE GE GE GEFEE T 1 r 14 3 2 112 2 1 112 1 1/4 1 3/4 5/8 112 c/16 1/4 0

6O CEIL I 3S. 4Z:.7 41.4 41.d 42.0 42. U 42.5 42.L 4 ,.C 42.C 42.0 42.0 42.0 42.0 42.0 42.0

&E ZOUCC 42.7 84.3 4!.1 45.4 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7 45.7UE I.aE 171 4,2., 45.1 45.9 46.2 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4GE IbCCI 4?.- 45.4 46.2 46.6 46.8 46.8 46.8 46. e 46.R 46.8 46.8 46.8 46.8 46.8 46.8 46.8

.E 14C -_ 1 44. 1 u. 7 47.4 47.8 48.0 4E.0 q.5 43.L 48.0 4A.C 4R. 48.0 48.0 48.0 48.0 48.0CC 12CCO 46.7 49.6 50.b 51.u 51.2 51.2 51.2 51.2 51.2 I.Z 51.2 51.2 51.? 51.? 51.2 51.2

g0.

LE 17 1 4 .. 3 !1.7 52.4 52.4 53.1 si.1 53.1 S3.I 53.1 53.2 53.2 53.2 53.2 -3.2 53.2 53.2bE 9-C01 49.7 c2.2 5S, 53.4 3.7 53.7 53.7 53.7 S3.7 53.6 53.8 53.8 53.8 53.8 53.8 53.8bE 8271 S_.c S.a 56.7 57.1 57.4 57.6 57. 57.6 57.6 57.7 57.7 57. 7 57.7 57.7 57.7 57.7GE 7cCC I .4 7.4 58.3 58.d 59.1 59.2 59.2 59.6 59.6 59.7 59.7 59.7 59.7 59.7 59.7 59.7GE 6rUCI S4.2 58.1 59.2 59.7 60.1 CL.4 60.4 60.8 6n.8 40.9

6q.9 60.9 60.0 60.9 60.9 60.9

GE 5CEO.t 57.9 f2.6 63.7 64.3 b4.8 5.1 69.1 65.4 65.4 65.6 6S.6 65.6 65.6 65.6 65.6 65.6UE 4'.O 61.3 C7.4 68.4 69.1 69.6 t9. 69.9 70.2 70.2 70.3 7n.3 70.3 70.3 70.3 70.3 70.3(.E 4(cc 1 67.9 73.7 71.9 72.1 73.1 73.6 73.7 74.C 74.0 74.1 74.1 74.1 74.1 79.1 74.1 74.1GE 3-L01 5.4 73.t 74.6 75.6 76.0 76.4 76.6 76.9 76.9 77.U 77.n 77.U 77.0 77.0 77.0 77.0GE 3tcci 65.7 78.3 79.6 80.4 81.1 1.6 81.7 82.1 82.1 42.2 87.? 82.2 82.2 P2.2 82.2 82.2

GE 2 2(7 77. " 7.0 83.6 P4.8 8".7 9. 1 86.6 97.1 87.2 P7.3 87.3 e7.3 87.3 A7.3 87.3 87.3

GE 2'031 74. '4.7 R6.3 87.9 88.6 89.3 89.8 90.3 92.4 90.6 95.6 90.6 9n.6 90.6 90.6 9U1.6

'E 1600 74.8 P5.b 67.7 89.3 95.2 96.9 91.3 91.9 92.0 92.1 92.1 92.1 92.1 2.1 92.1 92.1GE I Co 75.( P6.6 88.6 90.4 91.4 92. 1 97.7 93.2 93.3 03.7 93.7 93.7 93.8 93.8 93.8 93.8G I12 1 75.1 7.1 89.2 90.9 9.0 ". 2.7 93.3 93.9 94.0 Q4. 3 94.3 94.3 94.8 94q 94.8 94.4

GE 1"'21 75.3 47.4 89.8 91.8 92.9 9_.7 94.3 99.9 95.0 95.3 95.T 95.3 95.4 95.4 95.4 95.4CE ',CC1 75.6 97.7 91.0 92.3 97.1 73.9 94.6 95.1 9,.2 9S.6 9S.6 95.6 95.7 95.7 95.7 95.7I.E F CCI 7.6 -7.9 90.2 92.3 '3.4 94.4 S5.1 95.7 95.8 96.1 96.1 96.1 96.2 96.? 96.2 96.2GE 7 ,1 7S.6 8.1 90.7 92.d 94.C 15. G 95.9 96.6 95.7 97.C 97.3 97.1 97.2 97.2 97.2 97.2GE tI 75.6 a8.1 9V.7 92.9 94.2 95.3 96.4 97. 1 97.3 97.7 97.8 97.8 97.9 Q7.9 97.9 97.9

GE ICLI 75.f A8.1 9?.8 93.0 94.6 95.9 97.r 97.1 97.9 98.! 9q.4 98.4 98.6 98.6 98.6 98.6GE 4 01 7 .6 P8.1 90.8 93.0 94.4 96.t 97.4 98.1 48.3 98.9 99.0 99.0 99.1 99.1 99.1 99.1GE 30 1 75.( .0. 1 9L.3 93.L 94.7 96. 97.7 99. . 98.6 99.2 99.3 99.3 99.4 99.4 99.4 99.4

, 7001 75.6 ;8.; 92.8 3.0 94.7 9L.2 97.8 98.4 99.8 99.4 9Q.E 99.6 99.7 99.7 99.7 99.9C GE IL'I 75.6 I8.1 95*a c3.C 4 .7 96.2 97.8 98.4 98.8 99.4 9Q.6 99.6 99.7 99.7 99.7 100.0

C[ 01 75.( -8.1 9'.8 03.0 94.7 9L. 2 97.9 98.4 98.8 99.4 99.6 99.6 99.7 99.7 99.7 100.0

TOTAL NIJFpPD (F OSERV(A710T5: "."-i

GLOPAL CLIPATOLOGY RRANCP PEhCENTAGE FREQUENCY OF OCCURREN4CE OF CEILING VERSLS VISIBILXTYUSA E7AC FROM HOUqLY OBSLVATIONS

AIR .EATiHER SERVICE/MAC

"STIN NU87LR: 7,5287 STATION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORD: 78-87MnNTN: APR NOURSILSTI: 2100-230c

................................................................................................................................................CE ILIP1( VISIRILITY IN STAIUTE MILES

In I (,E Gi. GE GE GE IE GE GE IL GE GE GE GE GE GE GE

FELT I 1 b 5 4 3 2 1/2 2 I 1/2 1 1/4 1 /4 5/8 112 /16 1/4 0.. ... . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . ................. . e. . .. .. .. .

NO CEIL 1 42.6 04.4 45.3 45.4 45.6 45.b 45.6 45.7 45.7 15.7 4S.7 45.7 45.7 45.7 45.7 45.7

o, 20:C10I 14.7 46.7 47.7 47.8 47.9 47.9 47.9 48.G 49 R. 0 48.C 49.0 48.0 48.0 q8.0 48.0 48.0I.E 18CCI 4S. 47.C. 4.0 48.1 48.2 4b.z 48.2 48.3 46.3 48.3 4A.3 48.3 48.3 48.3 48.3 48.3

uE 16brCV q, I 7.1 48.1 48.2 4q. 46. 3 48.3 48.4 48.4 48.4 4R.4 48.4 48.4 48.4 48 .4 48 .4[ 14FC1 4 5.3 47.3 48.3 48.4 48.6 48. (, 49.6 48.7 46.7 48.7 49.7 8.7 48.7 48.7 48.7 48.7

(.E 120011 46.- 48.3 49.3 49.4 49.6 49.6 49.6 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7 49.7

',E :0U 1 4P.9 1.6 52.6 52.7 52.8 52.8 52.9 53.0 53.0 53.C S3.D 53.0 53.0 53.0 53.0 53.0IE 9(C31 49. 3 92.0 53.0 53.1 53.2 53.2 53.3 53.4 53.4 53.4 53.4 53.4 53.4 53.4 53." 53.4

W: b0C'1 51.7 E4.9 55.9 56.1 56.1 56.1 56.2 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3 56.3CE 7rCc 53.7 3 6.9 57.9 58.0 58.1 8.1 58.2 58.6 58.6 58.6 54.6 58.6 58.6 58.6 58.6 58.6

t rE br u0l 54.0 97.9 58.9 S9.0 59.1 59.1 59.2 59.6 59.6 99.6 59.6 59.6 59.6 59.6 59.6 59.6

I.E s5un 51.2 63.2 64.4 84.7 64.9 01.9 65.n 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3 65.3GE 4,C" 61.- 68.2 69-7 70.1 70.4 70.4 70.6 70.9 73.9 70.9 70.9 70.9 70.9 70.9 70.9 70.9

'E 4L urC 64. 1 7Z.9 72.7 73.2 73.6 73.6 7!.7 74.C 74.0 74.C 74.0 74.0 74.0 74.0 74.0 74.0GE ' j L 66.9 74.7 76.4 77.C 77.3 77.3 77.4 77. 8 77.8 77.8 77.8 77.6 77.8 77.8 77.8 77.8.,E 1(OO 6.9 77.8 79.6 80.1 81.4 9C.4 80.6 80.9 80.9 30.9 8(.9 80.9 80.9 80.9 80.9 80.9

, Vo I 71.p .1.9 87.9 84.7 85.1 85.3 85.4 85.9 8s.9 85.9 85.9 85.9 85.9 85.9 85.9 65.9I.E :f C 73.6 F3.9 86.. e 6 ,9 87.4 67.8 87.9 88.3 88.3 98.3 8P.3 88.3 88.3 88.3 88.3 88.3JE 140C3 74.3 -4.7 86.9 87.8 88 . i8.8 88.9 89. 3 89.4 99.4 89.4 89.4 99.4 89.4 89.4 89.4:,f 1001 15. 96.6 88.9 90.0 90.6 91.1 91.2 91.1 9.8 91.8 91.9 91.9 91.9 91.9 91.9 91.9

'GO 1'1 75.! "7.2 89.6 90.8 91.' - I. 92.1 92.6 92.7 92.7 97.8 92.8 92.8 92.8 92.8 92.8

-51 1:'C'1 75.6 97.b 90.6 92.2 92.9 93.6 93.8 74.2 94.3 94.3 94.4 94.4 94.4 94.4 94.4 94.4

*r LC 75.7 17.9 91.U 92.7 9 3.4 94.1 94.4 94.9 95.0 95.C 95.1 95.1 95.1 05.1 95.1 95.16C 420 75.8 28.- 91.1 92.9 93.6 14.6 g4.9 9'.3 95.4 95.4 9S.6 95.6 95.6 95.6 95.6 95.6!,E 7101 75.9 pS.2 91.3 93.2 94.1 94.9 95.7 95.8 95,9 95.9 96.0 96.0 96.0 96.0 96.0 96.0uE #101 75.9 98.4 91.7 93.6 94.6 05.6 96 .f 96.4 96.7 96.7 96.8 96.8 96.8 96.8 96.8 96.8

S'C; 1 7'.9 89.4 91.8 93.b 94.8 6. 1 96.6 97. G 97.2 '7.2 97.3 97.3 97.3 97.3 97.3 97.3

GE 4LO 7S.9 .. 8.4 91.9 93.9 94. 1 41.3 97.2 97.7 97.9 97.9 99.0 98,0 9.0 98.0 98.0 98.0! O, 3 7!.9 P8.4 92.7 94.1 95.2 9c..9 97.8 98.2 94.4 '18.7 98.9 98.9 98.9 98.9 98.9 98.9

It no 1 75.9 P8.4 92.0 94.1 55.3 Q7.0 98.0 98.4 98.7 99.C 99.2 99.2 99.2 99.3 99.3 99.3 "

6E I lr 1 75.9 R9.4 92.0 94.1 I 5.3 97.U 98.0 98.4 98.7 99.0 99.2 99.2 99.2 99.4 99.6 99.9

IE I 75." R8.4 92. 2 94.1 95.7 'J7.0 98.c 98.4 98.7 99.0 99.2 99.2 99.2 99.4 99.6 100.0

................................................................................................................................................

T018L N1MB[r OF O'SFRVAI0O'JS: 9j1I L

uLIBAL CLIMATOLOGY PRANCH PENCENTA6E rikEQUENCY (jF oCCUFRLNCE OF CEILING VFRSUS VISIBILITY

USAFETAC FROM HOURLY CUSERVAI1oNSAI3 AFATPEP SERVICE/MAC

SIA11N N1PPER: 775267 STATIN NAME: N1AGAA FALLS |AP f.V PEDIOO OF RECORD: 78-87MONT-: APR POURSIL$T1: ALL

CC IL t;G VISIILIIY IN STATUTE MILESIN CE GE GE LE GE bE GE GE GE GE GE GE GL 6E GE GE

FEET I , 1 5 4 3 2 1/2 2 1 112 1 1j4 1 'l4 5/8 112 1/16 114 0

NO CElL | 30.7 '1.1 41.7 '12-1 42.3 4i.3 42.3 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.4 42.5

bE 2 ::C' 4 1.F 44.5 45.2 45.b 46.7 45.6 4.8 45.8 46.4 45.8 4-.s 45.a 4S. 45.9 4s.9 46.9E 18%0 I 42.1 414.0 45.5 45.9 46.1 4b.1 46.2 46.2 46.2 46.2 4.2 46.2 46.2 46.3 46.3 46.3LE 16C CC 42.Z 45.0 45.7 46.U 46.2 4.3 46.31 46.3 46.3 46.3 46.3 46.3 46.4 4f6. 46.4 46.4

LC 14"1 42.8 45.6 46.3 46.7 46.4 46.9 46.9 47. G 47.0 47.C 47.0 47.0 47.0 47.0 47.1 97.1tC 1 'CC1 44.2 47.2 47.9 48.3 48.S 48.6 48.6 48.t 45.6 48.6 44.7 48.7 48.7 48.7 48.7 48.8

6 I CCOC I 4A. 1 49.4 51.1 50.5 53.7 !0. a 50.8 60.9 53.9 60.9 50.9 60.9 50.9 S1.0 51.0 61.0.£ 90L 47.C C.4 51.1 51.5 61.7 61.6 51.p 51.S 51.9 1.6 51 .9 61.9 61.9 S2.0 52.0 52.0r~ 8c201 44. C 2 7 56!.5 63.9 54.1 154.2 b4 .3 54. 3 54.3 S4.3 64.3 54.3 614.4 54 .4 $4.41 64.4

GE 7' 17 5o. 3 4. 1 54.5 55.4 55.6 55. 1 5.8 66.4 66.4 5.9 5.9 66.9 55.9 S6.0 56.0 56.0CE 6 - 5 51.5 66.5 56.4 '6.8 67.1 57.2 57.2 57.-! 57.3 7. 3 67.4 57.4 57.4 67.4 57.5 57.5

GE s11 CC 54.9 ! 9.d 60.8 61.4 61.6 61.6 61.9 62.C b2.1 2.2 6.0 62.0 62.0 62.1 62.1 62.1• 4.1 01 5'-, 63.6 6k: 6F 65.8 66.1 66.3 66.4 66.5 66.5 66.5 66.6 66.6 66.6 66.6 66.6 66.6E 4"C1 60.C 66.. 67.! 6N.2 6F.6 48.8 68.9 61.C 69.0 69.1 69.1 69.1 69.1 19.2 69.2 69.2

UF 3 J3I 62.' 59.1 70.5 71.6 7,.1 72.3 72.4 72.5 72.6 72.6 77.6 72.6 72.6 72.7 72.7 72.7CE 3rC31 65.1 72.7 74.3 75.5 76.1 76.3 76,- 76.6 76.6 76.7 76.7 76.7 76.7 76.8 76.8 76.8

LE 2L0. I 6P.2 77.5 78.6 80.3 61.1 11.4 81.6 81.8 61.8 I.8 8.9 81.9 41.9 81.9 82.0 82.05E 2,'I 70.6 p0..2 82.4 A4.1 85.1 E5.7 86.j 86.2 86.2 86.3 86.3 86.3 86.3 06.4 86.4 86.4(E 1IG1 71.1 41. 83. 86.u 66.2 P6.6 87.1 87.3 7.4 R7.4 87.4 87.4 87.5 A7.5 87.6 87.5.1 112CI 72.7 13.C 85.4 97.5 6S.7 9,64 89.9 90.C 9C.1 90.7 90.3 90.3 90.4 90.4 90.4 90.6r;E 12L1 72.6 -3.7 86.3 88.4 89.9 90.6 91.1 91.3 91.4 q1.5 91.6 91.6 91.7 01.7 91.7 91.1

UF l(.O0 72. 7 -4. 87.1 e9.4 40.9 11.6 92.4 92.7 92.8 93.0 9'.1 93.1 93.1 93.2 93.2 93.2G.E I Li1 77.0 4.4 87.3 89.6 41.7 92.1 92.7 93.1 97.2 Q3.3 99.5 93.5 93.5 93.b 93.6 93.6LIE P O1 7'.1 74.6 87.6 9C.0 91.6 42. b 93.! 93.6 3.A 93.9 94.1 94.1 94.1 94.2 94.2 94.2GF 7 LO 73.2 -5.1 88.1 9Z.7 92.5 9.5 94.3 9'.7 94.

9 95.1 95.3 95.3 95.4 95.4 95.4 95.5

(.F fLO 7!.7 Y 5. 88.3 91.u 92.e 94.1 94.9 95.5 95.7 gs.9 96.1 96.2 96.2 96.3 96.3 96.3

6E ,Z-1 73 . 5. z 88.5 91.4 9.4 4. 8 96.7 96.4 96.6 96.8 97.1 97.1 97.3 97e. 97.4 97.4',E : 73.3 P5.3 8.6 91.6 93.6 5.2 96.' 97.2 97.4 97.7 99.n 98.0 98.2 98.3 98.4 96.4CE 'LCI 73.3 5.3 88.6 91.7 93.8 65.6 97.c 97.7 97.9 98.3 9P.6 98.7 98.8 99.0 99.1 99.1u. '0101 73.3 5.3 89.6 91.1 93.r 5,.6 97.1 97.6 99.1 98.6 9A.9 99.0 99.2 99.4 99.6 99.5"r ICC7I 73.3 "6.3 88.6 91.7 93.p 9 .6 97.1 97.b 98.1 98.6 99.0 99.1 99.3 99.5 99.7 99.9

61 rI 73. 3 65.3 86.6 91.7 93.8 56.6 97.1 97.6 98.1 94.6 99.0 99.1 99.3 99.5 99.7 100.0

................................................................................ ............................................

OTAL NUML OF OrISERVATIONS: 72,J

GLCBAL CLIMAIOLOY PkANCH PE6CLNTAGE FR[CUETJCY OF OCCIIRDENCE OF CEILING VERSUS VISIBILITYUSAFeTAC FROM HOUqLY ObSLPVATION5

£18 0 FATHER SERVICE/MAC

STaTION NUPER: 7-5287 STATION NAME: NIAGARA FALLS IAP 1Y P(D1OD OF RECORD: 78-87MONTP: "AV POURSILSTI: 0000-0200

CILIG VISIBILITY IN SATUE MILLSI pi rE GE GE 6E SE GE GE GE GE GE GE GE GE GE GL GE

FEET 1.13 b 5 N 3 2 112 7 1 1/2 1 1/' 1 1/N 5/8 1/2 5/16 1/% 0

..................................... ...........................................................................................................

NO CElL 1 44.1 2.7 53.2 53.7 5N.C !4.1 54.2 54.2 54.2 54.2 54.Z 54.2 5N.? 54N. 5N.2 S%.2

ILE xCVoo1 49.9 N.7 55.3 56.7 56- S6.1 56.2 96. 2 56.2 56.2 56.2 56.2 56.2 56.2 56.2 56.2uE 16'CI 6:.1 'N.5 9 5.5 55.9 S6.2 . 56.5 56. 5 56.5 56.5 56.5 56.5 66.5 16.5 56.5 56.5GE I bIcI Sc.1 T4.9 55.5 5.9 56.2 56.3 6.5 56.5 6.5 56.5 .5 56.5 6.5 6.5 66.5 56. 6!G.E 14CO 1 5C.N 4 5.3 55.8 !G.2 56.6 St. 7 56.8 F b. 8 66.8 56.8 56.8 56.8 56.8 56.8 56.8 56.8GE 12-CC 51.4 56.Z 56.8 S7.7 57.5 S7.6 57.7 57.7 57.7 57.7 57.7 57.7 S7.7 S7.7 57.7 57 .7

6EI 1CCUO S.r ! 9.1 59.7 6U.1 6.N 6". 5 60.6 60.6 60.6 60.6 60.6 60.6 60.6 6C.6 60.6 60.6zE 9:31U .1 19. 61.3 6C.8 61.1 61.2 61.3 61,3 61.3 61.3 61.3 61.3 61.3 61.3 61.3 61.3LE EC,0 57.

r 63.2 63.P 6. 3 68.6 64.7 6N.8 64. a bN. 64.8 6,.8 6N.8 6N.8 64.8 64.8 6N.8

uE 7rj 5'.r

64.2 6N.7 65.3 65.6 65.7 65.P 65.8 65.8 65.8 6-.8 65.8 65.9 65.8 65.8 65.8bE 6,Cc I 6,3.1 f6.1, 66.6 67.1 6 7.4 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6

G.E -uv 1 63.2 70.3 70.9 71.b 72.n 7Z 2 72.7 72. 7 72.7 72.7 72.7 72.7 72.7 72.7 72.7 72.7LIE 4sc5 f7.3 71.9 75.7 76.6 77.2 77.3 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8 77.8uE 830 6g.6 76.6 77.5 78.N 79.0 79.1 79.7 9.7 79.8 79.e 79.8 79.8 79.8 79.8 79.8 79.8r E PC{ 7-.5 78.8 79.8 8I.L 81.6 01.7 62.3 82.3 82.4 '2.4 82. 82.N 82.4 92.4 82.8 82 .N* E 3;,CC 721.3 0.6 81.9 P3.L 63.8 r!.9 84.4 84. 84.5 A4.5 84.5 88.5 84.5 84.5 84.5 84.5

UE 2, GO 1 74.7 -3.7 8N.9 46.2 87.0 -7. 1 67.6 87.6 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7LE ZrCCI 76.2 P5.N 86.8 86.2 Ea.? 89.0 89.6 e9. 89.7 99.7 do.? 89.7 89.7 P9.7 89.7 89.711IfE 1fi. I 76.S '5.6 87.1 1%8.5 89.2 30. 4 69.9 940. C 90.1 90.1I 937.1 90.1 90.1 90.1 97.1 90.1vE 1 CC 1 76.6 E5.E 87.4 88.9 89.9 sC. C 90.5 90.6 90.9 90.8 9,.8 90.8 90.8 90.8 9 .8 90.8

IF I-LrI 76.6 -5.8 87.4 98.5 97.0 0.1 90.6 90.8 90.9 90.9 9P.9 90.9 90.9 90.9 90.9 90.9

,E 10 l 1 76.9 16. 8AR.Z 89.9 91.0 ;1.1 91.6 91.7 91.8 91.9 91.8 91.8 91.8 91.8 91.8 91.8L.E C 76.' 76.5 88.2 89.9 91.0 91.1 91.6 71.7 91.8 91.8 91.8 91.8 91.8 91.8 91.8 91.86c ©.c 77.1 r 6.8 88.6 90.3 91.5 41.6 92.2 92.3 92.4 Q2.4 97.4 92.4 92.4 92.4 92.8 92.4GE 7 77. ! T. 1 89.1 ql. 92.3 2.4 52.7 93.L 93.1 93.1 93.1 93.1 93.1 93.1 93.1 93.1li 31f1U 77. r '7.2 89.2 ;1.1 92.4 w. 5 93.1 93.2 93.3 93.3 97.3 93.3 93.3 93.3 93.3 93.3

1E -C0 7?.6 07.F 89.9 91.7 93.1 t3.3 94.2 94.4 94.5 4.6 94.6 94.6 9116 94.6 94.6 98.6GE 4 77,r '9.c 90.1 92.3 93." v3. 94.7 9Q.8 95.1 95.3 9r.3 95.3 95.3 95.3 95.3 95.3GE 1/I 77. ^ 8.C 90.1 92.3 99.1 14.6 9S.9 96.6 97.0 97.6 97.8 98.1 98.1 98.1 98.1 98.1uE 7 I 77.' T'1.C 9i.1 92.3 94.1 '14.6 6.1 96.9 97.3 90.1 9M.3 98.5 98.6 98.6 98.6 98.6

6E 1 . l 77.0 8.C 90.1 92.3 94.1 54. 6 96. '7.2 97.6 98.5 99.7 98.9 99.0 99.4 99.6 99.9

'I r 77." !' .c 90.1 92.3 94.3 ,4.6 96.3 97. 97.6 Q8.5 9A.7 98.9 99.0 99.4 99.6 100.0.............................................................................................................................

lOyAL SIJMVE OF OSERVATION1: *;f

I ...

(.13AS CLIAI AOLOo9 9tCH PENCEN1AGE FRLQUENCY tr ,CCU80

CNCE Of CEILING VERSUS VISIBILITYUSAF AC FROM IOUT!Ly ObSERVATIONS VAIR 6EATIER SERVICE/FAC A

STATION NUMPLR: 7'S2 7 STAT|10f. NAME: . NAGAR A F ALL S I AP NY PERIOD OF RECORD: 78-87

MON4.: MAY FOUQsILSTI: 0300-0500

. ILI Ib

I N U L GE G r GE (,E GE 5E GE G6 GE GE GE GE GE SEFEl I L 3 2 112 2 1 112 I 114 1 3/4 58 1/2 S/16 1/4 0............ ...- ......- .........° .. ........... ........... ............ ........... ..- ......... ........... ...........

.9 CEIL I 4C. 3 44.6 45.b 46.5 47.1 47.4 483 48.7 48.7 48.6 -.8 4 .8 4R.9 49.0 49.1 49.1

E '.UCr| 43.3 49.L 49.8 49.8 50.6 5L, 9 51.7 52.2 52.2 52.3 52.3 52.3 52.4 52.5 52.6 52.6bf 18"0c[ 4!.3 48.L 4 88 49.b 5o.6 ,L.9 51.7 52.2 52.2 2.3 57.3 52.3 52.4 52.5 52.6 52-6

EI l6FL' 1J 41.3 46.C 49.8 49. Sc.6 SC. 9 51.7 52.2 52.2 52.3 57.3 52.3 52.4 52.5 52.6 52.6iE 14 4 4. 4.q.7 49.6 50.5 51.4 51.6 52.5 52,9 52.9 53.0 53.0 53.0 53.1 53.2 53.3 53.3bE 1,CUOI 45.7 53.5 51.4 52.5 53.3 53.5 54.4 54.8 54.8 4.9 54.9 54.9 55.1 55.2 55.3 55.3

.u I Z, Gc 44.0 53.5 54.6 55.8 56.9 57.1 58., 59.5 68.5 58.6 5M .6 58.6 58.7 58.8 58.9 58.96E 9:'C91 48.7 14.C 55.1 56.2 57.4 S7.7 58.6 S9.1 59.1 59.2 59.2 59.2 59.4 59.5 59.6 59.6IC 8",2c 51.1 7.5 5q.6 60.1 61.3 61.6 62.5 63.C 63.0 63.1 63.1 63.1 63.2 63.3 63.4 63.4,r 70C 1 !2.5 ?.0 60.1 61.6 62.F 63.2 64.1 64.6 64.6 64.7 64.7 64.7 64.8 64.9 65.1 65.1Lf 6rC1 I4.3 61.1 62.3 63. 64.9 6S.4 66.3 66.9 66.9 67.0 67.n 67.0 67.1 67.2 67.3 67.3

*E -. :i 54.0 (5.5 66.7 68.6 69.P 70.3 71.3 71.8 71.8 71.9 71.9 71.9 72.fl 72.2 72.3 72.35E 403I 60. 68.6 b9.9 71.8 73.1 73.8 75.3 75.8 75.8 7S.9 7,.9 75.9 76.0 76.1 76.2 76.2L.E 4!CC 62.P 71.1 72.5 74.6 75.9 16.6 78.1 78.6 756 787. 79.8 78.8 78.9 79.1 79.2 79.2IE 30G01 64.2 73.3 79.8 77.j 78.4 79.0 8CR 81.3 81.3 91.5 81.5 81.6 81.7 91.9 82.0 82.0I.E 3LC I 66.- 75.7 77.3 79.6 81.0 P1.6 83.4 84.1 64. 1 34.3 84.3 84.4 84.5 84.7 84.8 84.8

IE 2,:I 67.4 77.1 78.9 81.4 82.9 33.S 85.4 96.C b6.0 86.2 86.2 86.3 86.5 86.7 86.8 86.8SC 2-z0l 69.8 78.6 80.6 83.4 84.9 A5.6 87.4 88.1 88.1 Q8.3 8e.3 88.4 88.5 88.7 88.8 88.8

I' 1CC1 67.5 79.2 81.3 94.1 65.6 P6.2 88.1 88.7 68.7 q8,9 8q.9 89.0 89.1 89.4 89.5 89.5'.5 ICO I 61.6 79.. 81.5 4. 3 85. 86.5 89.4 89.0 89.1 q9.4 89.4 89.5 99.6 89. 89.9 89.9bE 121r' I 7c. P p.O2 82.3 P5.1 86.7 87.5 89.5 90.2 93.3 90.5 9' 6 90.8 90.9 91.1 91.2 91.2

LC 1-001 7C.3 0.5 82.7 85.6 87.5 EA.b 90.F 91,7 91.8 92.0 97.2 92.3 92.4 02.6 92.7 92.7F 002l 71.4 0. 6 82.8 R5.7 87.b 3E.7 99.9 91.8 91.9 92.2 92.3 92.4 92.5 92.7 92.8 92.8

IF c31 7,.. -0.8 82.9 85.9 67.8 P6.9 91.1 92.C 92.2 '2.4 92.5 92.6 92.7 92.9 93.0 93.0E 7,01 73.4 10.8 83.0 86.G 88.1 891 91.* 923 92.' 92.7 92.8 92.9 93.0 93. 2 93.3 93.3I,[ 6.31 70.6 A1.1 83.3 46.3 h.4 69.6 91.7 92.7 93.0 93.2 91.3 93.4 93.5 93.8 93.9 93.9

UE -'L1 70.8 31.3 83.8 87.U 89.1 rV.3 92.6 93. 5 93.9 4,2 94.4 94.5 94.6 94.9 95.1 95.1CE 4 L 70.8 -1.3 83.9 87.1 89.2 9L.5 73.11 94.L 94.3 n4.7 9 ,. 95.3 95.4 95.7 95.8 95.8(,E CO 1 70. P 01.3 83.4 87.1 89.5 9L.9 9l.8 94.8 95.5 96.G 96.5 '6 7 96.8 97.4 97.5 97.5IC 200 70.8 1. 3 83.9 87.2 89.6 71.0 94 . 95.2 95.9 96.6 97.0 97.Z 97.4 98.1 98.2 98.2IE I L(1 7 0.. 1 .3 83.m 87.4 89.8 91.2 94.3 95.6 96.5 97.3 97.8 98.1 98.5 09 .2 99.5 99.7

uI 3 72.8 1.3 83.6 87.4 89.8 1. 94.3 5. 6 9b.5 97.3 97.8 98.1 98.5 09.2 99.5 100.0

101AL NUP-Efu OF 0"SERVATONS: 930

I -

GLUbAL CLI.fTnLGGV MRANCP PkC6ENTAGE FRE6UENCY CF OCCURQENCE F CrILING vrRuS VISIBILITYLSAFLIAC FPOM HOURLY C6 l[PATTONSA61 .FAY6[P SERVICEIPAC

GTAIION NJIPLP: 75387 STA|XON N8ME: 9 IA6 FAILS lAP 79 PEZIOD Of RECORD: 78-87MONTH: PAY HOURSILST: 06C.ObCO

CEILl'su V1SIPILITY IN STATUTE MIL(S14 1 CE (f GE GE GE IC GL G GL GE GE GE GE GE GE 6.E

FEET 1 1r. 6 V 4 ' 2 1/2 Z 1 112 1 1/4 1 !14 5/8 1/2 / 16 1/4 0

.0 CEIL I 34. 7.4 41.5 43.7 44.7 45.5 46.1 46.3 46.6 46.6 46.7 46.6 46.8 46.8 47.0 47.0

uE ZL1GCI 34.A 44.1 46.2 48.4 49.5 C.3 SI.C 51.2 51.4 51.4 51.5 51.6 51.6 S1.6 51.8 51.8tE I atC3| 3 .S 44.2 46.3 48.5 49.6 5L. 4 1 1 51. 3 51.5 51.5 t1 ,6 51.7 51.7 51.7 51.9 51.9SE 16' oI -,- '% .2 46.3 4e.6 49.6 .°.4 51.1 51.3 51.5 51.5 51.6 51.7 51.7 ;1.7 61.9 S1.9

EC 14 L 1 31.4 44.7 46.9 49.0 56.1 1.0 51.7 51.9 S2.2 F2.2 52.3 52.4 52.4 52.4 52.6 52.66E 1ZCC01 41.6 4b.2 48.5 5.9 52.3 53.1 53.S 54.1 54.3 54.3 54.4 54.5 54.5 54.5 64.7 54.7

LE ICLO).1 43.E '5.3 52.6 54.9 56.7 W7.7 58.5 58.6 t9.0 59.0 69.1 59.2 59.2 59.2 59.5 59.5iE 9C71 44.2 50. 53.1 15.6 67.4 !8.5 59.Z 59.6 59.A 59.8 59.9 60.0 60.0 60.0 b0.2 60.2GE 8CCI 45.3 -3.4 S-.8 '8,5 67.4 61.6 62.4 62.8 3.l 63.[) 67.1 63.2 63.2 63.2 63.4 63.4ur 7ro 4,. 4.6 57.4 6C.1 62.2 C3.3 C4.2 64.6 64.4 64.8 b4.9 65.1 65.1 65.1 5.3 65.3G 6r01l 4a.9 56.e 59.4 62.0 64.2 6,6.4 66.2 66.7 66.9 66.9 67.0 67.1 67.1 67.1 67.3 67.3

(,F S 1 5 1 :,3 60.6 63.5 66.8 68.9 3X.2 71.2 71 7 72.3 72.4 77.5 72.6 72.7 72.8 73.0 73.0IC 4' O s2.' 62.8 bb3 69.7 71.9 73.2 74.2 74.8 75.4 75.5 75,6 75 7 76.q 75.9 76.1 7b.1IC 4r~urI 53.' E4.C 67.6 71-2 73.7 74.9 75.9 76.6 77.1 77.3 77.4 77.5 77.6 77.7 78.0 78.0UC 3, L I s4.I C5.3 69.2 73.0 75.6 76.9 77.8 78.5 79.0 79.2 79.4 79.5 79.6 79.7 79.9 79.9*. 3MCC1 54.- 66.9 71.6 75.6 78.2 79.5 80.4 81.1 1 .6 01.8 81.9 82.0 42.2 2 .3 82.5 82.5

bE -So: I 56,r 63.7 73.7 77.a 60.6 91.9 83.) 83.7 84.2 34.4 84.5 84.6 84.7 84.8 85.1 85.15C 2031 53.r 71.4 76.3 80.8 63.7 R5.1 86.2 86.9 87.5 R7.7 87.8 88.U 88.1 ?8.2 88.4 88.4uE 19003 5.! 71.7 76.7 81.1 04.C 1 5. 86.6 87.2 67.8 98.1 b.2 88.3 88.4 P8.6 88.7 88.7GC I5CC 59. 73.3 79.4 82.8 85.7 q7.4 69.6 89.4 93.0 90.2 97.3 90.4 93.5 90.6 90.9 9C.9: , 12[l : 5?.7 73.5 78.6 83.03 85.9 E7. b 8.8 89.6 90.4 q.6 9C.8 90.9 91.3 01.1 91.3 91.3

SE rOc 59.7 73.7 78.8 63.2 66.1 A7.6 9.0 89.8 9,.8 91.0 92.1 91.2 93.3 )1.4 91.6 91.6CE 9CI 5 .7 73.8 7.9 83.3 A6.2 6.0 8-.1 89.9 40.9 91.1 91.2 91.3 91.4 91.5 91.7 91.7

O P CC, 59. 74.C 79.1 83.7 b6.6 R6.6 4.7 1 90.8 91. 52.0 92.2 92.3 92.4 q2.5 92.7 92.7t,E 7001 59,P 74.1 79.4 83.9 67.n "8.8 90.2 91.C 92.0 92.3 ,2.4 92.5 92.6 92.7 92.9 92.9* . 6201 59.p 74.3 77.6 84.4 67.5 19.4 9.8 91.5 92.6 92.8 92.9 93.0 93.1 93.2 93.1 93.4

GE ',.zI 51.9 74.4 79.E 84.7 p.1 .1. 91.5 92.3 93.5 94.0 94.1 94.2 94.3 94.4 94.7 94.7ic 4 L 5." 74.4 79. $4.8 89.3 'L.L3 91.Q 92.6 93.9 94.5 94.6 94.7 94.q 94.9 95.3 95.3E[ ?1 5 9 74.4. 79.9 85.1 , 7 1.0 92.7 936 95, 1 06.0 9A.6 96.7 96.8 96.9 97.2 97.3

(,F 2L0 59.Q 74.4 70.9 PS.1 8.7 01. 1 93. f! 94. 1 95,4 96.5 97.2 97.4 97.6 98.0 90.4 98.5ti I 20 59.9 74.4 79.9 05.1 6P.7 1. 1 93.0 94. 1 95.4 '6.6 97.4 97.7 98.2 98.5 99.6 99.9

GE LI ., 74.4 79.9 85.1 L6 . 7 ql. 1 97.2 74.1 45.4 Q6.6 97.4 97.7 98.2 98.5 99.6 100.0............. °.......................'.......o........°..............°.°...°...'.......°........°°..........................

1OtL NUMPFP (IF 0 6571Rv0O7: Q3E

L

GLO6AL CLI"ATILO..v

BPAhCH PENCLNTAGE FPrUENCY OF OCCUQOEP:CL OF CFILING VERSUS VISIBILITYLAFET 1C FROM OURLY ObSERVJ01ONS

AIR WEA3IFR 5EPvZEI19AC

STATI1N NUM LR: 7:'!287 5TA71ICN NME: NIAGARA FALLS IAP NY PLPIOD OF RECOPO: 78-87MONTH: MAY HOURSILSTI: 0900-11C

Ci: ii! iVlSI415111117144 Sla1U7E PjLE5

IN I rL bE Gr GE GE LE G E GE GE GE GE G E

GE GE GE GEEE I I 1 6 5 4 3 2 112 2 1 112 1 1/4 1 1/4 5/8 112 1/1 6 114 0

. . .. '. .. ... . . . . . . . . . . . . . . . . . . . . . . . ...... .'..'. O.......... . ° I . . -. ' .. .' . . . ...... .. . ......° .....

NO CEIL 1 .1 46.8 4R.1 49.6 49.6 1l.( 5C.0 50.5 50.0 15.0 5n.0 50.0 50.0 50.0 50.0 50.0

Lr ZCCCOI 44.1 9.9 51.3 52.9 52.9 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3 53.3LE 18301C 44.4 S0.2 51.b 53.2 53.2 !3.7 53.7 53.7 53.7 53.7 51.7 53.7 53.7 S3.7 53.7 53.7

11 IbCC0I 44.4 50.2 51.6 53.2 5 3.2 S3. 7 53.7 53.7 53.7 S3.7 53.7 53.7 53.7 53.7 53.7 53.76C 14r.;o 44.8 5.8 5' 53.8 53.8 44.2 54.2 54.2 54.2 54.2 54.2 54.2 54.2 S4.2 54.2 54.2uC 12rL3 47.r .3.(5 54.5 56.1 56.5 56.9 56-9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9 56.9

bE ICC0 4-.0 6.6 58.2 59.8 60.2 61.6 60.6 60.6 bO.6 60.6 60-6 60.6 63.6 60.6 60.6 60.61 9vc 1 in. 1 '7.4 59.0 61.0 61.4 61.8 61.e 61.b 61.8 61.8 61.8 61 8 61.8 61-8 61.8 61.8.E 8Cq '2.' 62.4 62.2 64.2 64.6 ES.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.2 65.

2 65.2

LE 7",1 S5.2 11.3 63.1 65.4 65.9 C6.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5.C tr .31 54. n 62.3 64.2 66.5 67.2 67.7 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8 67.8

E 5u0 55.5 C5.2 67.4 7U.S 71.t 12.2 72.3 72.3 72.3 72.3 77.3 72.3 72.3 72.3 72.3 72.3

,E 4' CC 56.P 66.q 69.5 72.6 74.0 74.5 74.7 74.6 74.8 7..8 74.8 74.b 74.8 74.8 74.8 74.8uE 4 Lo 58.3 r 8.3 71.2 74.3 75.7 76.3 76.7 76.8 76.8 76.8 76.R 76.8 76.8 76.8 76.8 76.8GE 3! Ic 59.5 70.1 73.2 76.5 77.8 76.5 78.8 78.9 74.9 78.9 71.9 78.9 78.9 78.9 78.9 78.9,E 3C CCI 1L.2 12.3 75.8 79.0 80.4 11.1 81.4 91.5 81.5 81.5 81.5 81.5 81.5 81.5 e1.s 81.5

IE 2LC0I 62.6 74.Z 77.7 81.0 82.4 q3.C 83.3 83.4 83.4 Q3.4 83.4 83.4 83.4 P3.4 83.4 83.4E 2-C

nl c5.7 77.8 81.s P4.8 86.2 P7.0 87.0 P7.4 87.4 87.4 87.4 87.4 87.4 07.4 87.4 87.4

.E 1*.cl 659. 7a.c 81.8 85.2 66.6 87.3 87-6 87.1 d7.7 q7.7 87.7 87.7 87.7 87.7 87.7 87.7

(,r I GLrI 67.2 72.5 ;4.3 A7.1 89.1 4".9 9.3 9U.4 9. qO .4 9". 4 90.4 91.4 00.4 90.4 90.4* E IC"I 67.5 f 1.4 8E.5 89.7 91.1 UI.b 92.3 92.4 92.4 '2.4 92-q 92.4 92.4 92.4 92.4 92.4

E I( -i 67.7 12.0 86.3 9U.9 92.3 "3.3 91.H 93.9 94.0 94.0 94.0 94.0 94.0 94.0 94.0 94.0GE %71 67.P -2.2 86.5 1.0 92.4 c"3.5 94.0 94.1 94.2 99.2 94.2 94.2 94.2 94.2 94.2 94.2

6E PLII 6e. r -2.4 86.7 91.4 92.9 Q4.1 94.5 94.( 94.7 94.7 94.7 94.7 94.7 94.7 94.7 94.7

E 7LCI b .1 '2.5 d6.9 91.b 13.4 14.6 95.2 95.3 95.4 qS.4 95.4 95.4 9S.4 95.4 95.4 95.4*F 0I .,4.1 -2.b 67.1 91.8 9.r 41.; 95.7 95.6 95.9 05.9 9'.9 95.9 95.9 95.9 95.9 95.9

LE G 1 63.1 ?2.6 87.1 51.b 94.' 55.1 96.9 97.3 97.4 97.5 97.6 97.6 97.6 97.6 97.6 97.6bE i '.-2 (4.2 92.7 87.2 91.9 94.8 9E.8 97.6 9q.1 98.3 98.7 99.8 98.8 98.8 96.8 98.8 98.8ir !.nI C11.4 02.9 i7.4 92.3 9S .7.2 98.1 99.6 90.1 99.5 99.7 99.7 99.7 99.7 99.7 99.71C 2cc1 6-.0 02.5 87.4 42.3 95.3 17.2 94.1 98.6 99.r n9.6 94.8 99.9 100.0 1 f0.0 ICO.O 100.0

1,E Icnj 6P.4 '2.9 87.4 92.3 9.3 7. z '8.1 98.6 99.0 99.6 93.8 99.9 IJ0.0 1'0.U 100.0 100.0

ti. 6-.Q 2.q 87.4 92.3 9 .3 7.2 98.1 18 .6 99.0 09.6 90.8 99.9 100.0 170.0 100.0 100.0

.............................. .......................................................................... .....................

IOTAL ntm.iMEP O# O.srpVAyiO;S: 93r" L_

F

LLOAL CLI-0IOLOGY FRANC- P1kCENTOG8E 6[66t104LV -F OCCI'.nEtIL Of Cr LIS VURSUS VISIPILIlUSLFETAC frOM -OUQLY rbSEPV8IIONSAl. 6rA7K1(R SERVICU/MAC

LTtIcIN 8Ii2'4Lg: 7.S287 STAT I PJAME: NIAGAkA FALLS I A FY PErIOU OF PLCORO: 78-87M0kTf. MAY IOUSILSTI: 1?G0-180C

CE ILI'.6 VI1151L1T7 26 STATI?2 PItE.

I % ,L kir 1, L 0 0E GE t GE Gr ut GE YlE GE E GE 6 GE G EFEET I l

r 6 5 4 5 2 1/2 1 112 1 I1J4 1 1/ 5/8 112 '/16 1/8 v

N0 CElL 1 43-.7 46.6 7. 883 8.3 4 9.3 8F. 8#R. 3 4a. 3 48 .3 84. 3 4'1. 3 488.3 49.3 88.3 88.3 488.3

I.E :CCo 201 4-.S '2.7 5 37 '8.3 58.3 58. 3 58 .3 8.53 58. 3 5,4.3 548.3 58. 3 58.3 58.3 58.3 548.3,E 18f303 4P.9 '3.1 58.1 58.7 S.7 5.7 58.7 4..7 58.7 98.7 54.7 58.? 58.7 '8.7 58.7 58.7UE Jbl6I 89. 1 3.3 58 .3 '8.9 5 9.9 "8.9 58.9 58.9 54.9 '8.9 54.9 58.9 58.9 9.9 58.9 58.9I, 18CGII 41.6 '3.8 54.7 55.8 55.. '5.8 55.8 S5.8 55.8 95.8 59.8 55. 55.4 S5.8 5%.Q 55.8

E 1,' I.0 I 5C.6 8.8 SS- 5L.6 56.b "t.b b.b 56. 6 56.6 56.6 56.6 56.0 56.6 56.6 56.6 56.6

CE ILCII 9!.5 98.1 59.3 59.9 59.9 59.9 59.9 59.9 59.9 59.9 50.9 59.9 59.9 59.9 59.9 59.9rE 9rCl j 18.8 59.1 60.3 61.8 61.8 61.8 61.8 61.8 61. 61.8 61.8 61.8 61.8 61.8 61.8 61.846 8LLO I . 1 6 2.5 63.6 68.U 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1A[ TL,3 56.9 F2.7 68.C 65.3 65.9 (-5.6 b5.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 5.6 65.6

.E V1G 1 57.7 63.9 b5. 67.0 67.2 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3 67.3

GE 5rL0 59.r 65.9 6P.0 69.8 79.2 76.3 7p.3 70.3 70.3 70.3 70.3 70.3 70.3 7 70.3 7C.3A[ 8 i 61.1 68.6 70.6 72.6 73.2 73.8 73.8 73.4 73.8 73.8 77.8 73.8 73.8 73.8 73.8 73.8t. 4T Ur 62.7 3C.3 72.8 75.1 75.b 75.7 75.7 75.7 75.7 75.7 7,.7 75.7 75.7 75.7 75.7 75.7,E 3' - 0 .4.6 73.0 75.6 78.1 78.6 7. .6 78.8 78.6 78.8 78.8 78.8 78.8 78.8 78.8 79.8 78.86E 3CL0 6P.2 77.1 87.0 R2.6 83.2 43. 5 d3.7 83. 7 83.7 93.7 85.7 83.7 83.7 83.7 63.7 83.7

G 271 71.' '1.1 88.1 86.9 87.6 ?8.0 80.1 88.1 6. 1 09*3 8P.1 se.1 88.1 P8.1 88.1 88.1tE Zt'G 72.9 93.1 86.1 89.2 91.95 '. b 91." 91. 91.0 91.0 91.0 91.0 91.0 91.0 91.0 91.0GE 1|5C'I 73.9 P4.3 87.3 90.4 91.2 51.9 92.3 92.3 92.3 92.3 92.3 92.3 92.3 92.3 92.3 92.3,E 1"1J1 74.3 5. 1 88.5 92.0 92.9 Q3.9 94.3 98.3 88. 98.3 qi.3 98.5 94.3 98.3 98.3 94.3

1; 17C 78.P '5.9 89.5 93.3 98.2 Y5.3 9S.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7 95.7

Us 1,. 74.e 46.2 9q7.1 9 9L S .) 9t.1 96.9 97.1 97.1 c7.1 97.1 97.1 97.1 97.1 97.1 97.1CE 9L2 1 78.F .6.Z 90.1 98.L 95.1 ,t.,2 97.' 97.2 97.2 97. 2 97.? 97.2 97.2 97.2 97.2 97.2., FC77 74. P 6.3 9S.2 98.1 95.2 96.3 97.1 97.3 97.3 97.3 97.3 97.3 97.93 7.3 97.3 97.3.r 7,-1 78.9 06.7 97.5 98.4 95.5 76.7 97.8 97.6 97.6 97.6 97.6 97.b 97.6 97.6 97.6 97.6s.E f 1j 7f. I -7.1 97.9 98.7 9F.8 !7. U 97.7 98.0 98.1 c8.1 99.2 98.2 98.2 98.2 98.2 98.2

j S '1 75.3 -7.3 91.; 95.1 96.1 97.3 9P.1 98.3 98.4 98.8 94.5 98.5 98.5 98.5 9R.5 98.5A6 4C3I 7-.3 97.3 91.2 95.1 96.2 97.! 98.5 98.9 99.1 99.8 99 99.5 99. 99.5 99.5 99.5

.E I.!9 75.3 "7.! 91.2 95.1 96.2 'i7.5 9p.9 78.; 99.1 09.6 94.7 99.7 99.7 99.7 99.7 99.7IE ?L."|: 759. '7.3 91.2 95.1 96.2 q7.5 9 A. 98.9 99.2 99.8 '9.9 99.9 99.9 99.9 99.9 99.966 1|7| 75. ! 17. 91.2 95.1 96.2 17.6 .'.6 '9.U 99.4 99.9 ibr.0 i00.o 1o0. 0 1 000 io0.a 100.0

,,E '1 75. "7.3 91.2 95.1 96.? 17.6 9'.6 99.1r 99.8 c9.9 lon.0 oo.U Il1.( ICO.G 100.0 10C.0............................................................................................................................

TOTAL t.I7K969 OF O',SERVA819'4: 43'

F

6LaJAL CLIP1';OLOGY 88ANC- PLkCLNTAGF FPEQUENCY OF OCCUR1ENCL Or CEILING VFHSUS VISIBILITY

,SA f1 AC FROM HOURLY

OASEQVAITON5SAIR .[A-[E S[RV

5/("MiC

'T*TAT.V NUIMLr: 7.75'07 STAT rN NAME: NIAGAR8 FALLS TAP KY PEPIOD OF RECOPD: 78-87

MONITH: PAY HOuRS(LStl: 15C-1700

IL 111'b VISIBILITY 14 STATUTE MILES

I ,L GE Gr GE 11bE E GIL E rP L 6 L E IF GE GE GE G E

FE.! I Ic 1 5 4 3 2 1/2 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/- 0.. .. ... . . . .. . . . . . . . . . . .. . . . . . . .......... ° ...... ...°* . ° * , ° .. ...... .... . . . . ... .. .. .. .. ° .......

NO C]L I 42.,' 45.7 46.6 47.U 47.2 47. 2 47.2 47.2 47.2 '7.2 47.2 '17.2 '1..2 '7.2 47.2 '7.2

L.E ,-C z I u7.' '1.9 52.9 53.3 53.7 53.7 53.7 53.7 53.7 53.7 53.7 53,7 93.7 53.7 53.7 53.7,E I 49';) 4 1.7 .2,2 53.1 F 3,. IS3.5 S.9 53.9 S3.9 53.9 53.9 51.9 53.9 53.'9 53.9 53.9 53.9

!,f 1I4V 1 47,8 Z.3i 53.Z 53.7 54.0 54. 0 54.0 54.C 54.C 54.0 58.9 54.0 5N 0 S4.0 54.0 54.0(E !4 1C-I 4f.7 '3.1 54.1 S4.5 54.6 54.b 54.8 A '.6 54.8 54.6 54.8 54.4 5C.a 54.8 54.98 54.8 V,f I2LC I r. 'S.3 56.3 56.9 57.2 57.2 57.2 T. 57.2 '7,2 57.2 57.2 57. 57.2 57.2 57 .2

uc IOt 0 z '.3 .. 3 59. t 01 60.4 6L. 4 b.4 60.4 b.4 60.4 6r.4 60.4 60.4 60.4 60.4 60.4UE 9,CZI t,4.0 19.1 6 ,j. 61.L 61.3 61.3 61.3 61.3 61.3 1.3 61.3 61.3 61.,3 61.3 61.3 61.3

'I 8~Cli sia.1 b2.0 63.1 64.4 (.4.7 44.7 64.7 64.3 64.7 64.7 64.7 654.7 641.7 64.7 64.7 64.7rE ;[ CO 1.4 6,4.2 65. 66.7 67.0 67.0 67.1 67.6 67.0 67.U 67.0 67.U 67..0 67.0 67.0 67.0X bCl7 50.n 6b.1 67.7 62.5 649. I c. 8 68. 68.5 68.9 68.9 6P.9 68.9 6A.9 68.9 68.9 68.9

GE 5"VI - .3 7r,0 71.8 72.9 77.4 73.4 73.4 73.4 73.5 73.5 71.5 73.5 73.5 73.5 73.5 73.54" 40 I 60.4 73. 75.6 77.1 77.6 77.6 77.6 77.b 77 .7 77.7 77.7 77.7 77.7 77.7 77.7 77.7

.E 4!CC 1 6 1.6 76.3 78.3 79.8 i ).4 10.4 O.4 80.4 0.0.5 905 i".5 80.5 80.5 e0.5 80.5 80.5

LE 3021 ( 7.1 76.4 8C.5 92.2 62.9 12.9 62.9 82.9 83.C 93.0 87.c 83.0 83.0 3.U, 13.0 83.0

CC l 7:. 9 -C.6 63.C F4. 65.4 e5. 4 85.4 85.4 85.5 a5.5 85.5 P5.5 85.5 85.5 85.5 Ps.5

Z,£ 2 3dI 77.4 "1.2 86.9 8b.7 89.8 o9.8 89.8 89.8 89.7 99.9 89.9 89.9 89.9 89.9 89.9 89.9E Z'oJc 75.7 P6.9 89.8 91.7 92.8 92.6 92-9 9?. 3 92.9 92.9 92.9 92.9 9Z.9 92.9 92.9 92.9"[ 11OJ 75.8 7.0 89.9 91.9 93. I 3. 0 93.0 93.r 93.1 03.1 97.1 93.1 93.1 93.1 93.1 93.1CE I LO1 76.7 kd.3 91.5 93.7 94.9 95.2 95.2 95.2 95.3 95.3 95.3 95.3 95.3 95.3 95.3 95.3LE 171 I 77. 8.6 91. 4. 93.7 ';5. 5 95.9 95.5 95.6 05.6 95.6 95.6 95.6 95.6 9.6 95.6

!,E 1:L1 77.1 P8.7 91.9 94.2 95.5 15.8 45.P 95. h 94.9 95.9 95.9 95.9 95.9 95.9 95.9 95.9

,.E 9121 77.1 A87 91.9 94.2 95.5 s.8 95.3 95.6 9'3 95.9 95.9 95.9 95.9 95.9 95.9 95.9(CE pC0 77.1 '.9 92.2 944 95.7 96:0 96.r 96.C 9f,1 96.1 9A.1 96.1 9.,1 6,1 96.1 96.1.C 7, I 77.i 79.9 9. , 94 9. 0 6.5 96.5 96 6 96 96.6 96.1. 96.6 46.6 96,6 96.6 6ur F dI 77.1 P9.1 92.4 94.6 96.3 it.9 97.0 97. 91.1 97.1 97.1 97.1 97.1 97.1 47.1 97.1

CE '1, 77.1 49.5 92.8 95.3 97.2 4. 4 98.7 Q8. 7 96. 98.8 96.4 98.8 96.6 98.8 94.6 98.8

.E 410I 77.1 P9.5 92.8 95.q 97.3 96.6 99.0 99.2 99.4 79.4 99.4 99.4 99.4 99.4 99.4 99.4(,E 3LO 77. 1 .. 5 92.q 95.5 43.4 "b.. 6 91 . 99.6 7.3 c9.7 99 .7 99.7 99.7 79.7 99.7 99.7CE -L21I 77.1 49.5 97.9 95.5 97.4 78.9 99.5 19.4 99.9 79.9 IOn.c 130 . O 00.0 20.0 ICOO 100.0(E 2L11 77.1 q9.5 92.9 95.5 97.4 '6.9 90.5 59. 99.9 Q9.9 10".0 100.0 1o.0 1n".0 100.0 100.0

bE 11 77.1 .9.5 92.9 95.: 97.4 ;6.9 99.5 q9.9 9Q.9 99.9 2on. 100.0 0o.*3 10.0 100.0 10 .0............................................................................................................................

10161 Nt'PrEW or O;,sE8vA IoNs: 3.Lt

t7

LCAt CLIMATOLOGY !:PANC4 PrkC[tlIAG[ fRE UENCY OF OCC'JR[fLCE Of CFILING VfRSUS VISIBILITYv5AFETAC FROM HOURLY PUSRVA7IONS

AIN 6EAT1EP SE8JE/9AC

STATION to'7PLR: 772,67 STATI C. NAME: NIAG86A FALLS TAP NY PERIOD OF RLCOPD: 78-87MONTI-: MAY l-OURS(LSTI: 1900-200

CC IL16 VISIFILITY IN SIATUIE MILLSI'. i E1 GE GE Gf GE l GE GE GE GE GE GI GE GE GE GE

FLLT tI 1 4 3 11/ 2 1 1/2 1 1/4 1 1/4 5/8 112 /16 1/4 0

NO CII 1 4?.:' 47.1 87.7 88.5 4H.5 88.5 9., 48.5 41.5 48, 9R.5 48.5 48.5 88.5 48.5 88.5

n 'Lu. 85.3 1.8 5,.2 52.9 52.9 52.5 52.9 52.9 52.9 S2.9 57.9 52.9 52.9 52.9 52.9 52.9. ! GO 1 87.1 52.2 52.4 53.7 59.7 53.7 53.7 53.7 53.7 53.7 S1.7 53.7 53"7 53.7 53.7 53.7

F |t 7.1 2.8 53.1 c3.9 57.9 ;3. 9 53 .; 53.9 53.9 53.9 5!.9 53.9 53.9 53.9 53.9 53.9

[ 14CCI 8'.t '8.2 58.7 S5.5 55.5 15.5 55.5 55.5 55.5 55.5 5 .5 55.5 55.5 55.5 55.5 55.5

C1 1:' 71 89.- 55.9 56.8 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7 57.7

.E 1JrCCI S2.6 19.5 63.6 61.6 6 .6 61.6 61.6 61.6 61.6 61.6 b1.6 61.6 61.6 61.6 61.6 61.6,E 9,CC I 5. I 53.l 61.5 62.5 t2, 62.5 62.5 62.5 62.6 62.5 6. 625 62.5 625 6.5

IE P-7 C 5. 3. ,1 68.7 65. 65.1- 6. b 65.P 6b.8 65.8 65.6 65.8 65.6 65.8 65.8 65.8 65.8

ur 7'3o l 565. 65.2 66.9 68.G 6e.1 (,1 6P.1 68.1 68.1 68.1 69.1 68.1 68.1 68.1 68.1 68.1

,, 6'CoI 5.? (7.3 69.1 70.2 7 .' 7 L.3 7n.- 7c.3 10.3 70.3 7n.3 70.3 70.3 70.3 70.3 70.3

.1 [.Ll Il.8 11.6 74.0 75.2 75. 4 7. .75.8 75.5 75.5 75. 7 75 5 755 5 75.5 75.5 75.5,E 4 1tI f5.2 77., 79.9 E.1 61.8 01. 9 81.9 32.C b2.U P2.0 87.0 82.0 82.3 82.0 82.0 82.0

I.E 4-c8E 65.7 79.1 I.8 P3.1 83.9 P4.L 68.c 88.1 a4.1 98.1 88.1 68.1 88.1 84.1 4.1 88.1,E 3!Ll I b.I '1.L 83., 85.1 85. "1.0 86., 96.1 6.1 06.1 6.1 86.1 86.1 86.1 86.1 e6.1(sE 3[ LC I 6'9 q 3.i 86. 87.8 61.3 38.8 8- .4 A,5 88.5 88.5 88.5 88.5 88.5 P8.5 88.5 88.5

IF 25121 71.8 P:,.8 8P.5 9U.1 91.0 91.3 91.4 91.6 91.6 Q1.6 91.6 91.6 91.6 01.6 91.6 91.6,L 2C|3 72.is 7.2 97.! 91.9 9 3.3 s3. 3 53.5 93.6 9S.8 93.8 93.s 93.8 93.8 93.8 93.8 93.8

1E l 1.I 7.5 -7.3 9'.4 92.0 53.1 !.5 93.8 99. 98.U 98.0 98.0 98.0 . 0.0 98.0 98.0 98.0rE Lr'1 l 77.7 17.8 91.3 92.9 98.3 98.8 95.1 95.3 'v5.3 '5.7 9-.3 95.3 95.3 95.3 95.3 95.3

:,[ I:, L 7p.7 17.8 91. 93.1 4 . 95.2 95.8 95.6 95.6 95.7 9S.8 95.8 95.8 95.8 95.8 95.8

.E i! LD 77.7 9.1 91., 93.2 98.6 75.5 95.7 5.9 959 '6.7 96.1 96.1 96.1 96.1 96.1 96.1'r q:'I 7,.7 'e. 91.6 93.2 o8.6 '5 5 y.7 95.9 95.9 96.0 96.1 96.1 96.1 96.1 96.1 96.1

,E 7or1 72.7 38.L 91.6 93.2 98.9 05.8 96.7 96.2 96.2 p6,3 96.5 96.5 96.5 96.5

uE 70CI 7. 7 '3.0 91.6 93.2 98.9 "5.6 56.- 96.2 96.2 q6.3 98.5 9f.5 96.5 96.5 96.5 96.51E 6-.rl I'. 7 te.r 92.c 93.2 58.9 6. 2 96.6 91. 97.c 97.1 97.2 97.2 97.2 97.2 97.2 97.2

.E L 7',q

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I F ZL7 72.' ''.6 92. 99.Z 96.1 17.6 ?9.5 99.1 9 .2 99.7 90.8 99.8 99. 99.8 99.6iE 11I , "8.6 92.8 Q8.2 95|. I 7.7 9.6 99.8 99.8 '9.8 9Q.9 94.9 99.9 99.9 1u0.0 100.0

tE 4 .1 72.9 97.6 92. 98 . f 5.,1 17. d 9'.6 59.8 99.8 99.8 9o.9 99.9 . 99.9 99.9 IU7.0 100.0

IOIAL hIIMPfr OF O"'W8A71085: 93r

L

GL0LAL CLIMP ICLOGY PRANCH PE.CENTAGL FREQUENCY OF OCCURPENCE GF CEILING VFRSuS VISIBILT1YiSAF(7AC rOM FOUP-LY rUSEPVA3TONS

A1R WFATHEs SERV1IE/PlC

!TA11]ON P.Ur.Pl: 7,5267 5TATIP: NAME: NIAGARA FALLS IAP NY PEPIOU OF 8/COPD: 78-87MONTI-: MAY $-OURS(LSI: 2100-2300

CV I'. " " V1S1 I'LT Y I STATUTF"M1LES

i I ,L SF GE GE GE E G E G.

f, E GE " c G E GE G[ GL GEFEEI I" t 5 8 3 2 1/2 2 1 112 1 118 1 1/4 5/A 112 , /16 114 0

1.0 7611 47.1 -2.5 53. S 53.7 5 3.8 53. 53 . 54., 54.3 . 8.0 58. 5.0 5.7 59. C 5.0 5 .0

,. 2G2CCI 49.6 555. 56.3 56.7 56.8 116.8 56. 57.L 57.0 r7.0 57.0 57.0 57.0 57.0 57.0 57.0E 1LcI 6 7-.25 6 . a: 57.1 07.8 $7.5 1,7. 5 57. 57. 7 57.7 7.7 57.7 57.7 57.7 57,7 57,7 57.7;'1 1e 0aI S:.' 56. Z 57.1 1.7.q 4 7.5 57.5 57.5 57.7 57.7 S7.7 57.7 57.7 57.7 5.7.7 57.7 S71.7.E 14'aC7I 5.A c6.7 57.5 ,7.8 58.0 '8.0 59.0 S8.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2 58.2

'E 12L;1 51.9 58. 4 59.4 S9.7 59.9 !9.9 59.4 60. 1 60.1 -0.1 60.1 60.1 60.1 60.1 60.1 60.1

(,r 171 !4.7 62.c 63.1 63.7 63.9 63.9 b3.C 64.1 68.1 68.1 68.1 68.1 68.1 68.1 68.1 6.1I. 9rc1 ,,.L (31 68.2 648.7 64 68.9 68. 5.2 6.2 65.2 60.2 65.2 S.

2 65.2 6S.2 61 0.2

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*E S'05 I 2. 2 71.5 73.1. 73.9 74.1 78.1 78.2 78.8 78.8 78.8 78.8 78.8 78.8 78.8 78.8 1 .8fE 8r7 6,. 78.! 10.1 81.1 813 '1.3 (1,8 91.6 81.6 PI6 81.6 81.a 81.6 81.6 81. 8.t-

CO 4rLC? 67.7 19.1 81.6 P2.7 37.9 i,2.9 p!,C 83.2 83.2 F3. 3 3.3 83.3 83.3 eI.3 80.1 * .!-' Ix ('C E7.4 '1.1 83.7 P48.7 es85 41. 1 p 85.7 95. 4 95.8 -5.5 85.5 85.5 85.5 -S.5 6'. p6E 3r 'CC 7Z.U .. 7 87.3 88.8 .. 7 PS.7 b8. 89.- 69.c P9.1 8.1 89.1 q9.1 9.1 8.1 p ..

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uE VLLI 78.5 3l.9 91.8 P 3.3 98.0 181.C ' .Z 98.8 88.5 18.6 9.6 4 8.6 '8.

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IO AL H(JMnLg nF 0- Sf''/IAlION,: $

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GLOBAL CLIMATOLOGY PRANC- PEWCENTAIE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYUSAFEIC FROM HOURLY OisSERVATIotNSAIRl IE8ER SERVICEIPAC

STATION NUNREP: 7252e7 STA11Ota NAME: NIAGARA FALLS ZAP NY PLqIOD OF RECORD: 78-87MONTH: MAY HOURSILSTI: ALL

~C1L1GG VIS;I1LITY IN STATUTE MiLES

IN i GE GE GE GE GE GE GE Gr EL GE GE GE GE GE GE GEFEET I 6 5 4 3 2 1/2 z z 1/2 1 1/'1 1 3/4 SIB 112 sib /9 a

NO CEIL 1 42.4 46.9 '17.q 48.8 49.2 49.3 99.5 49.7 49.7 49.7 '9.7 99.7 49.7 49.7 99.8 99.8

6E 20[)Uo| 46.C 91.0 52.1 53.0 53.3 53.5 53.7 53.8 53.9 53.9 53.9 53.9 53.9 53.9 54.0 59.0, bE 1800 1 46.4 51.9 52.9 53.3 53. ? 53.9 54.1 59.2 54.2 "9.2 54.Z 54.3 54.3 "9.3 54.3 59.3

bE 160C00 '6.9 51.9 52.5 S3.4 53.8 51.0 59.2 54.3 54.3 54.3 59.3 S.3 54. 3 54.9 59.9 5.11. GE 14'G0I 97.0 2. 53.2 59.1 51.4 S4.6 59.9 SS.C 5S.0 SS.0 55.0 55.0 SS.3 55.1 55.1 55.1

5,E 12C0I0 'q.5 53.8 54.9 55,9 56., 56.6 56.6 56.9 S6.9 56.9 56.9 S7.o 57.0 57.0 57.0 57.0GE 100007 51.2 1.2 58.9 59.5 6b.0 6C.2 60.9 60.6 60.6 60.6 606 60.6 60.7 60.7 60.7 60.7

GE 90CG0 51.8 58.0 59.2 6C.9 61.9 61.2 61.9 61.5 61.5 61.6 61.6 61.6 61.6 61.6 61.7 61.7GE Arool 54.C 60.6 6Z.2 63.5 64.1 69.9 69.6 64.7 69.7 69.8 64.6 64.8 64.8 69.8 64.9 69.9GE 73C1 55.1 62.2 63.7 65.1 65.7 66.0 66.2 66.3 66.9 66.9 66.9 66.4 66.9 66.4 66.5 66.5.E 6101 56.4 63.8 65.4 66.8 67.4 67.7 68.0 68.1 68.2 66.2 6.Z 68.2 68.2 68.3 68.3 68.3

4E 5r0O1 59.1 67.6 69.4 71.1 71.9 72.3 72.6 72.8 72.8 7Z.9 72.9 72.9 72.9 73.0 73.0 73.06E 45,U10 62.13 71.3 73.4 75.3 76.3 16.6 77.1 77.3 77.3 77.9 77.9 77 77.9 77.9 77.5 77.5GE 94fL0 63.9 73.1 75.4 77.9 79.9 78.8 79.2 79.9 79.5 79.5 79.6 79.6 79.6 79.6 79.7 79.7z1 3scc1 64.9 15.1 77.6 79.7 90.7 81.1 81.6 81.8 81.9 81.9 81.9 82.0 82.0 82.0 82.1 82.1GE !0001 66.9 77.? 8C.9 82.5 8e3.6 840 89.5 89.7 84.8 89.9 84.9 84.9 89.9 95.0 85.0 85.0

6r 2rCCI 68:9 90.1 83.0 e5:3 86:5 b6.9 87.4 87.1 87.8 97.8 87 8 87.9 87.9 87.9 88.0 88.0GE 2LUg 7'. 5 .3 85.3 e7.7 89.0 9.5 9.0 n . 3 90.9 90.9 91.5 90.5 90.5 90.6 90.6 90.6GE 18001 73.8 p2.7 85.7 88.2 89.9 99.9 93.5 90.7 93.8 90.9 97.9 90.9 91.0 91.0 91.0 91.06.E 1

8ZX 71.4 73.6 86.8 89.4 93.8 91.4 92.0 72.2 9209 92.4 9.9 92.5 92.5 92.5 92.6 92.6

'F I2LCI 71.6 94.V, 87.3 90.0 91.9 92.1 92.7 93.0 9!.1 93.2 97.3 93.3 93.3 93.4 93.9 93.4

6 r E ICCUI 71.7 94.3 S77 90.5 92.0 92.6 93.s 93.8 99.0 941.1 94.1 99.1 94.2 99.2 94.2 99.2.. bE '11Oj 71.7 99.9 87.7 9C.6 92.0 92.8 93.5 93.9 99.0 94.1 94.2 94.2 99.2 94.3 94.3 94.3

GE mAr' 71.8 qq.S 87.9 90.8 92.4 93.2 9F.9 94.3 94.5 94.5 99.6 99.6 99.6 9%.7 99.? 99.?AE 7001 71.6 #9.7 86.2 91.1 92.8 93.6 94.9 99.1 94.9 95.0 9ro0 95.1 9501 95.1 95.2 95.2GE 6r8I 71.9 P9.9 d8.9 91.4 93.1 99.0 94.8 95.2 95.5 95.5 95.6 95.6 95.6 9S.7 95.7 9S.?

GE 9 cr| 72.0 qS02 88.9 91.9 93.a 99.9 95.9 96.3 9606 96.7 96.8 96.8 96.9 96.9 97.0 97.0G.E 900 72. C 5.2 88.8 92.0 94.0 96.3 96.3 96.6 97.1 97.9 97.5 97.5 97.6 97.6 97.7 97.?4.E 3cal 72.n3 5.3 88.9 %2.2 99.3 qS.6 96.8 07.5 97.9 .8.9 96.6 98.7 96.7 98.8 98.8 98.8GE 2Cri 72.0 pS.3 89.!; 92.2 99.3 15.7 97.i 97.6 98.2 98.7 99.0 99.1 99.1 99.3 99.3 99.3•E "00l 72.0 e5.3 89.0C 92.2 99.9 q5.6 97.1 07.9 98.3 98.9 99.2 99.3 99.9 99.6 99.8 99.9

E I 77.r vs. 3 89.0 92.z 9.9 195.6 97.1 97.9 98., 98.9 99.2 99.3 99.9 99.6 99.8 100.0

.................................................................................................................. .....................

IOIAL hUMBEP , V OISERVAIJONS: 7990

'-:1'w__..- '-.! • * , li

bLUBAL CLIMATOLOGY BRANCH P~hCENIAGE FREQUENJCY OF OCCURPEJCE OF CEILING VERSUS VISIBILITY

LSArEIAC FROM HOURLY OBSERVATIONS

6181106h NUMnEP: 725287 STA7ION NAME: NIAGARA FALLS lAP NY1 PEQIODOf ovECOPO: 78-87MONTH: JUN NOURSAISTI: 0000-0200

CE IL1A:G VISIBILITY 1IN SIATUIC MILESIN GE IL 6 GE GE GE 6E GE GE GE GE GE GE GE GE GE GE

FEE? T IC A 5 4 32 112 2 1 1/2 1 1/4 1 1/4 SIB 112 S/16 1/4 0

NQO CElL 1 47.1 S.o 56.0 56.4i 57.0 S7.1 57.3 57..' 57.4 117.6 67.6 57.6 67.6 S7.7 57.7 57.7

E.E 2LF C3 1 4 9. 2 58.c 59.:. -;9.4 60.0 6C. 1 bO.3 (10.4 60.4 60.6 b6.1.6 60.6 63.6 60.1 60.7 60.7i.E lrc'il 49.2 S9.0 59.0 59.14 bc*c eC.1 rl6,3 60.4 60.4 60.6 60.6 60.6 60.6 6007 60.7 60.7GE 16C101 49.2 s8.1 59.1 59.6 br.1 6C.2 63.4 60.6 60.6 60.7 6n4.7 60.7 60.7 60.8 60.8 60.8GiE 14ECOI 49.2 !8.1 59.1 59.b 60.1 60.2 6C.4 60.6 60.6 60.7 60l.7 60.7 60.7 60.8 60.8 60.8

F 12.-aO I51.7 ,.0.7 61.8 62.6 63.1 C63.2 63.6 AS.? 63.7 61.8 61.0 63.8 63.8 63.9 63.9 63.9

E 0OI53.8 62.9 64.1 614.9 65.As 65. 6.9 66.L 66.0 66.1 66.1 66.1 66.1 66.2 66.2 66.2

5E 9, C01 54.3 63.6 64.8 65.6 66.1 66.2 66.6 66.1 66.7 66.8 66.8 66.8 66.8 66.9 66.9 66.9iC $'!ICI 55.8 65.6 67.2 68.0 68.7 66.9 69.2- 59.3 69.3 69.4 6q'# 69.6 69.6 69.7 69.7 69.7I.E 71'001 56.2 66.4 68.1 66.9 69.6 (.9.6 70.1 70.2 70.2 70.3 7r.3 70.4 70. 70.6 70.6 70.6I.E 6(COI S8.6 68.9 70.6 71.3 72.0 7;.2 72.6 72.7 72.7 72.8 72.8 72.9 72.9 73.0 73.0 73.0

GC StCCC 61.9 13.C 74.8 76.0 76.7 76.9 77. ?77.1 77.3 77.4 77.4 77.6 77.6 77.7 77.7 77.7uE. 4OLOI 64-C 76.1 77.9 79.6 SO.3 A0. 6 81.0 11. 1 81.1 011.2 81.2 81.3 81.3 81.4 81.1 81.4AE 4C~v 65.0 77.2 79.2 80.9 01.8 42.1 82.6 82.7 62.8 02.9 87.9 83.0 83.0 43.1 63.1 83.1

GE 3. Sz.D 661.4 79.11 11.2 83.1 84.1 0'4.A 85a.0 85.1 65.? '5.3 81.3 84.41 85.4 85.6 85.6 85.6(C 31LO1 63.1 01.0 83.2 84.41 86.7 47.3 87.8 87.9 68.0 186.1 84.1 88.2 88.2 88.3 88.3 88.3

6E 2!CCI 69.0 '2.2 85.0 87.3 88.7 49.3 90.0 9U.1 90.2 n0.3 9 .3 90.4 90.4 90.6 90.6 90.61,E ZICI31 73.2 93.7 86.9 09.6 91.1 91.9 92.7 92.6 92.9 93. 91.0 93.1 93.1 93.2 91.2 93.2

ei 'OI7. 4.1 87.9 90.6 92.1 92.9 93.8 93.9 94.0 94.1 94.1 94.2 94.2 V.. 4.3 94.3GE IC~c 15.C 7.8 n.4 49.Z 91.7 91.? 94.0 95.0 95.2 95.3 95.4 95.4 95.6 95.6 95.7 95.7 v5.7

,F1CI72.r, P5.? 89.2 92.U 93.8 94.7 957 95.9 lb.C 46.1 96.3 96.2 96.2 96.3 96.3 96.3

44E Ifloa1 72.1 '5.8 89.3 92.1 91.9 94.8 95.8 96.0 90.1 96.2 905.2 96.3 96.3 96.4 96.419.4E !S1721 *.e 89.3 92.1 93.9 94.8 95.8 96.0 96.1 96.2 96.7 96.3 963 6.4 96.4 9f)1K E PC01 72.2 75.9 8 9 .4 92.2 94.0 74. 9 95.9 96.1 96.2 96.3 964.3 96.4 96.4 96.6 96.6 96.6AC 7101 7:.2 ps.q* £9.4 92.6 914.6 95.4 96.4 96.7 96.8 96.9 96.9 97.C 97.0 97.1 97.1 97.1GE (C , 72.? .'5.9 89.4 92.7 91.7 9".6 96.7 96.v 97.0 97.1 97.1 97.2 97.2 47.3 97.3 97.3

,:C 2. 61 89.8 93.2 95:.% 9b.4 97.6 97.6 97.9 98.0 98.0 98.1 98.1 98.2 98.2 98.26C %C 77 ! P.1 89. 93.a 95.4 16.4 97.7 97.9 981.0 98.1 90.3 98.2 98.2 98.3 98.3 98.3uE 3015 72? 06.2 89.9 93.4 9s.9 qe.s 94.1 98.4 98.4 98.8 90.8 98.9 99.0 99.1 99.1 99.1A .E C 201 2.3 06.2 89.9 93.4 9S.9 96.9 98.1 98.3 981.41 99.2 99.3 99.4 99.7 99.8 99.8 99.8-~E IMC 72.! 0b.2 89.9 93.4 95.9 96.9 98.1 98.3 98.4 eq.. 99.3 99.4 99.8 99.9 99.9 99.9

bf 01 72.3 '6.2 89.9 93.4 95.9 l0.9 98.3 96.1 98.4 '9.2 90.3 99.4 99.8 99.9 99.9 100.0..........................................................................................................................................

TOTAL NuNpEp or 04srRvAtioust 900

!L

i GLOAAL CLRIIAOLOGY BRANCH PERCENTAGE FREQUENCY OF OCCURPE[CE OF CEILING VERSUS VISIBILITY4 usaF.TaC FRO" tOuqLV OBSERVAlONS


STATION NUP!'LP: 725287 STATIC NAME. NIAGARA FALLS lAP NY PEfIOD OF RECORD: 78-87MONTH: JUN HOURsILSTI: 0300-0500

STO 4LE .. .............. ... ................. ..LEILING VISIBILITY IN Sl1T 1 RILES

I C J OL GE GE GE GE GE GE GE GE GE GE GE GE GE GE GEFEET I 1 5 1 3 2 1/2 2 1 112 I 1 4 1 !il 5/8 1/2 S16 1.#% 0

110 CLIL i 403 45.7 47.6 49.j 50.6 51.0 51.1 51.3 51.3 51.3 51.6 S1.6 51.6 51.6 SI.? 51.9

6E ^DDCOl 47.4 49.Z 50.1 S1.6 5!.? 53.7 53.8 54.1 $%.1 54.1 51.3 S4.3 5.3 54.3 S4.4 S4*7bE lar0 42.41 148.2 50.1 51.6 53.2 53.7 53.8 S4.1 5l4.1 54.1 54.3 540.3 5.1 54.S Si.% 5.?b16b'ZOJ 42.4 48.2 511.2 S18 53,0 5!.q S.r 5*4.3 54.3 q4.3 54.6 s4.6 S1.6 S4.6 5o.7 54*9

S2 l.Cl 42,a 98:6 50.6 52:1 S3.q 54,3 Sq.* Sq.6 54.8 54.8 S.:0 5S,:0 550 S5.0 55.1 5 .3I,[ 12robi 45.2 '1.3 53.3 55,3 S?,l 57.6 ST.8 58.1 58.1 58.1 5R,3 S4.5 58.3 S8•3 S8.14 So.$

LiE ItCI 4?. 54.4 56.9 58.8 60. 61.3 61.6 2.0 62.0 62.0 62.2 62.2 62.2 62:2 62.3 62.7GE 9,UCl 49.4 56.2 58.4 60.4 62.4 63.L 63.7 63.1 63.7 63.7 6!.9 63.9 63.9 63.9 64.0 64.3a $tial 50.4 13.G 60.4 62.4 6b 65.4 65.8 66.4 66.4 66.4 66.7 66.? 66.7 66.7 66.8 67.1*E tUL I 50.F 58.7 61.1 13,2 65.6 b6.2 66.6 67.2 67.2 67.2 67.4 67.4 67.4 67.4 67.6 61.9E , 6113C| 52.7 b4.L 63.4 65.6 68.1 66.8 69.1 69.8 69.8 49.8 7.0 70.0 70.0 ?Q.0 70.1 70.4

bC Src-03 s5.s 64.8 67.6 7D.U 72.4 73.2 3.6 74.2 74.2 74.2 74.6 74.6 74.6 74.6 74.8 15.1GE 4 c0I 58.1 el.6 73.6 73.1 75.7 76.6 76.9 77.6 77.6 77.6 77.9 77.9 77.4 77.9 76.1 7N.4o, 4031 S . 619. 72.3 74.9 7, 76.3 7.9 79.? 79.7 79.7 80.0 80.1 89.1 PO.1 80.3 80.7A 35,X, 60.3 70.3 73.7 76.2 78.6 79.7 I.4 810.2 1.3 91.3 8.7 81.8 61.8 81.8 62.0 82.3G 3'UaC 62.3 12.6 76.4 79.0 61.7 82.6 83.3 84.1 84.2 81.2 84.6 84.1 4.7 84.7 B4.9 85.2

GE 2,101 62.1 73.3 77.2 ".6 82.8 P3.9 84.7 85.4 85.& 15.6 6%.9 86.0 66.0 66.0 86.2 66.6oE 20c0 6!.g 75.C 79.1 81.9 65.3 86.6 87.6 68.4 *9.6 as.& &9.1 P9.2 89.2 89.2 89.4 89.6bt 1po1 64.3 Is.% 79.6 82.S 8S. ST. 68.0 8.9 89.2 19.2 89.b 69.1 89.? 89.7 69.9 90.2.E 1r091 65.3 76.8 81.0 83.9 87.6 86.8 9C.1 91.0 91.4 91.4 91.8 91.9 91.9 41.9 92.1 92.4t |120I 6s.4 77.0 81.2 84.2 88. 49.2 9n.6 91.6 #2.0 42.0 9;.3 92.4 92.1 92.4 92.7 93.0

ir IriOi 65.7 17.4 61.9 64.9 86.8 90.0 91.6 92.1 93.1 93.1 91.4 93.6 93.6 93.6 93.6 94.3fir 9001 6S.0 77.6 82.2 85.3 89.2 9C.4 92.0 93.3 9.6 93.6 93.9 94.0 94.0 94.0 94.2 94.6I.E PO l 68 77.6 62.2 75.7 89.6 B 92. 93:4 95.4 34 . 9I'3S4.3 9 4 .61 949.r 7Cc1 69. '17 82.3 85.9 89.9 e1.2 92.9 94.0 94.6 94.6 *4.9 9S.0 95.0 41.0 95.2 95.6GE 6.01a 6 .9 17.7 82.3 6.0D 90.0 91.3 93.0 94.1 94.9 94.4 9%.2 45.5 95.3 I5.3 95.6 95.9

c S1 6t.9 77.9 46 96.6 90.7 4;.l 9412 9S.3 96.2 96.3 960? 9S. 96.4 96.9 97.1 91.%r bul 85.9 77.9 82.4 06.6 90.7 94.1 94.2 95.4 96.0 '6.8 V7.1 97.3 97.4 91.4 97.1 98.0(A 301 65.5 77.9 82.7 .8 91.0 024 94.6 95.9 96.9 97.$ 97.9 94.1 98. 98.2 8. 988rx 2201 6%.q 77.9 82.7 96.9 93.3 "1.6 94.7 98.C 97.1 97.8 99.3 98.6 98.7 96.7 96.9 99.3( 1201 6.9 17.9 82.7 06.9 91. 9.6 94.7 96.0 97.3 41.8 9.1 9.6 98.8 48.8 99.0 99.9

G al 6s.1 71.9 8207 66.9 9.1 92.6 964, 6.C 91.1 97.8 99.3 98.6 98.8 98.8 990.4 16.8................................................................................

TOTAL %WMfitR Of 11SSEW110Is 913

-317

GLOBAL RLI1OLOGY BRANCO, PEkCtNTAGE FRE(.IENCT OF OCCL'RDENCE OF CEILING VERSUS VISIFRILITVSA .EJAC From IOURLY OBSERVATIONS

AIR WEATHER SERVICEIMAC

STATION MUMMER: 125287 STATION NAMES NIAGARA FALLS TAP NV PEPIOD OF RECORD: 7i-8iMONTH:Z JUN POURSILSTP: 06

0 0.. $o8C

...........................................................................................................................................

*NO CElL 1 31.6 62.6 46.U 48.l S0.2 51.2 51.6 52.2 !,2.3 52.6 S?.6 52.6 52.6 S2.6 S2.6 52.6

GE IbCCOl 39.7 65.1 68.9 e51.9 53.6 56.6 54.9 55.6 b5.1 5S.9 S-.9 55.9 55.9 S5.9 56.0 56.0G- 14.E o INLO .9 46.4 S0.3 %3.3 55.0 56.0 56.3 57.c 57.1 S7.3 57.3 S7.3 51.3 51.3 57.6 51.6GE 12L7G01162.P~ 48.0 52.0 S5.1 56.9 S7.9 56.? 58.9 59.0 59.2 5'.? 59.2 59.2 59.2 59.3 59.3

4.E lurG0I 43.0 50.1 56 7.8 !9.7 60.6 61.1 61.8 61.9 062-1 12.1 62.1 62.1 62.1 62.2 62.2G (E 90003 66. 0 Sf2., S%. S8.2 60.2 61.3 61.7 62.3 62.6 2. 62.7 b2.? 62.7 62 7 62.8 62.S

* iE 8co16. 52. Si3 60.? 6.2.7 (.3.9 661.2 66.9 65.0 65.2 65.2 65.2 65.2 65.2 6s.3 65.36 E 7Icco 45.p !3.4 56.c 61.6 63.61 66.7 65.0 65.8 6.5.9 (.6.1 66.1 66.1 66.1 66.1 66.2 66.2

*GE 6pr.lI 66.9 54.S 59.6 63.Uj 65.0 66.6 66.9 67.1 67.8 68.c 66.0 68.0 68.0 68.3 68.1 68.1

LGE 5C!T~ 61.' C6.8 61.8 65.3 67.3 69.1 69.4 70.3 70.60 70.6 In,.$ 70.8 10.8 70.8 70.9 70.9*GE *99ul 90.7 1.0.1 65.3 89.6 71.7 13.9 164! 75.2 75.6 75.0 15.8 75.8 75.6 75.8 75.9 75.9*GE do.: i &2:l 61:9 67.6 11.6 73.9 76. 2 16.8 11.1 77.9 78.2 711.3 18.3 18.3 78.3 78.6 78.64

A .E 3LOI 52.7 62.7 60.3 72.7 75.2 71.9 7".6 19.3 79.6 19.9 8G.0 60.0 80.0 60.0 80.3 80.1GE 3C001 S3.9 6.3 69.9 76.3 17.0 66.C, 60.6 81.6 61.6 62.3 62.2 02.Z 82.2 62.2 82.3 62.3

at 2'00I 561.A 65.2 73.1 75.9 76.8 E2.2 82.9 83.8 061.2 '61.6 66.1 SN1.? 86. 7 94.7 66.8 86.86E :"Col 55.6 66.2 72.2 771 60.1 63.8 8%.7 65.6 06.0 66.3 004. 86.6 86.6 P6.4 86.6 86.6jA I E -r lIo s5.8 *6.6 12.6 77.4 60.% 16.3 &5.0 65.9 66.3 66.7 8A6 6.8 86.8 66.8 86.9 86.9

*f.E 1L-Il 57.6 68.6 76.9 80.2 81.6 P1.1 &6.D 69.1 89.6 99.9 9n.1 90.1 90.3 9C.3 90.2 60.2GE 17001 56.3 69.3 I5.6 81.3 868 68.6 69.8 9I.E 91.4 91.6 92.0 92.0 92.3 62.1 92.2 92.2

(A 3116C I A.1p 61. 16.3 62.1 R15.7 81.6 90.9 92.1 92.7 93.1 9 I. 3 93.3 93.6 93.6 93.6 9 3:661 q201 50.6 69.9 76.6 02.11 66.0 P9.9 91.3 92.6 93.1 43.6 93.8 93.8 93.9 93.9 96.0 96.hE 101 56.8 70.2 76.9 82.8 86.3 90*3 91.6 92.9 93.6 -6.0 96.3 96.3 94.% 964.6 96.6 96.6I.E 1001 to.$ 70.2 ?1.: 62.9 86.6 9L.?1 92.0 93.6 96.3 96.6 96.9 96.9 91.0 65.0 95.1 95.1L4g *CGl Sp.i 70.2 11.0 62.9 86.6 %. a 92.6 93.90 96.6 95.0 95;.6 9S.4 9S.6 9S.6 95.7 95.7

uc !-CI 56.6 70.2 71.0 83.2 81.0 91.9 91.6 95.3 96.0) 96.6 96.9 96.9 97.0 97.0 61.1 91.1Eug orcl so.@ 7.3 71 93.j 871 92.0 94.? 95.9 V6.7 47.3 97.9 91.9 96.0 98.0 98.1 98.3of I C01 S4SF ?,j.3 11.2 As.% 81.2 %4. 2 96.60 1b..2 97.3 97.9 95.6 98.6 98.8 98.8 96.9 98.96E 2001 56.8 72.3 ?1.3 s.6 67. '2.3 9. 9. 916 9. 9.0 99. 99. 996 9.6 9.

GE r so0 ?a. 13 17.3 33 67.6 .12.6 96.7 66 9716 94.6 9::3 992 9. 997 99 100.0

kg ')I 56.0 10.3 11.3 13.7 6716 92.6 96.7 96.6 91.6 98.6 99.3 99.2 99.1 99.1 99.9 300.0...... 0- .....................................................................

( IAL heSPES if *.'5gU6A11fSsa 9G0

GLOBAL CLI"AIOLOGY 6R4NCF PEkCLNIGE FREQUENCY oF oCCURRENC Of CILIN6 VERSUS VISIILITus AF r ITC FROi HOURLY ObSERVAIIONS&IQ ILAINER SRVIeE/MAC

SAI1OS hUPBER: 7P5287 STATII1J NAME: NIAGARA FALLS IAP NY PEPIOD OF RECORD: 76-87MONTH: JUN HOURSKLSTI: 0900-1100

*CEILING VSYL~ t ilT IE

IN GE GE GE GE GE GE GL GE GE GE GE GE GE GE GE GEFEET | In b b 8 3 2 112 2 1 1/2 1 1/% 1 1/8 S/6 1/2 5/16 1/8 0

4O CEIL 1 %1.q "7.2 86.7 51.0 52.1 S2.3 52.3 S2.3 62.3 52.3 S".3 52.3 52.3 g2.3 62.3 52.3

• E 2orcGol wo8. SC.3 SZ.1 5.0 S6.1 56.3 56.3 56.3 56.3 68.3 56.3 56.3 56.3 58.3 56.3 56.3GE 18-001 88.8 S0.3 52.1 5 .*2 56.3 56.6 6 5'6.6 56.6 56.6 5.6 56.6 56.6 96.6 66.6 66.6

S'.r 160001 84.8 SO.3 52.1 S5.3 56.8 56.7 56.7 66b. 66.7 S6.7 56.7 56.1 56.7 56.? 66.7 667?(.E l1soCOl 4S.0 s 11 Sz.9 56.1 57.S 57.8 57.8 51.8 61.8 57.8 57. 57.8 57.8 7.8 57. 67.84.E 12-:o 47. 13.3 S5.1 S6.3 59.8 59.7 69.7 59.7 69.7 59.7 99.7 59 9.7 59.7 5907 59.7

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bE 100001I 57.2 65.0 67.1 68.3 68.7 68.8e 68.9 68.8 68.8 68.6 68.8 68 68.8 68.8 b8.8 68.86E 9rj001 67.3 65.2 67.3 68.6 6q.9 69.0 69.C 69.0 69.0 69.0 69.0 69.0 69.3 69.0 69.0 69.0GE S(,001 59.3 68.1 70.2 71.6 72.0 72.1 72.1 72.1 12.1 72.1 72.1 72.1 72.1 72.1 72.1 72.1GE iCOOl 643. . 70.1 72.2 73.6 79.0 79. 1 79.1 70.31 79.1 719.1 79.1 79.1 79.1 79.1 794.1 79.1aE brool 61.2 71.3 73.5 1q.8 75.3 76.5 75.5 75.5 75.5 76.5 75.5 7S.5 76.5 75.5 75.6 76.5

(,E S-cIl wi93 715.1 71.8 79.91 79.9 80.2 8!0.2 80.2 #0.2 80.2 6".2 80.2 80.2 010.2 80.2 60.2G Sn66C 77.6 60.5 82.S 83.1 83.3 83.3 83.3 83.3 83.3 63.3 83.3 83.3 83.3 63.3 83.3k

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GE '0I 49. 838 7.5 897 9.6 91.2 939 3. 91. 5 3. 91. 91.5 91.S 91. 3. 91.5(A 2CO01 70.3 p6.2 88.9 91.8 91.1 9.3.a 99.1 991.2 99.2 49.2 99.2 *'..2 991.2 99.2 99.2 99.266 18001 In.5 0S5 89.2 92.3 93.6 90.3 98.6 99.8 949 998 9.8 941.11 949 94.8 99.8 94.8GE 15 01 70.8 16.1 90.0 93.1 99.94 95.1 95.90 95.7 95.7 95.7 9W.? V5.7 95.7 91.7 VS.7 VS.bE 12 CroI Vc.9 qG.a 90.2 93.5 99.9 96~5 96.9 96.3 96.1 96.3 98.1 96.3 96.3 96.1 96.1 96.1

6 E 10001 70.9 86.9 90.9 93.8 95.2 95.9 V6.2 96.9 96.9 06.9 9c.41 6.41 96.9 96.9 96.9 96.9&I lo cal 17.9 P6.4 90.9 93.6 95.2 95.9 94.2 96.9 96.9 96.9 96.% 96.9 96.9 416.4 96.9 96.9( It 'CII ?.!q 96.4 90.6 941. ) 9S.9 76.3 96.7 96.9 916.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9(11 ?G01 73. 0'6.5 93.7 99.1 9S5 96.8 97.1 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3fiA 6L03 l1.p 06.5 93.0 99.9 96.3 91.3 97.7 97.9 97.9 97.9 91.9 97.9 97.9 97.9 97.9 97.9

GEC 43 73.0 F6.5 91.G 99.5 96.41 91.9 91.8 98.03 98.0 98.0 9.0 98.33 91.0 98.0 0.8 98.0*GE 900ol 71. * 6!.1 93.2 95.1 97.1 78.3 98.7 98.9 98.9 98.9 98.9 98.9 98.9 96.9 98.9 98.9

GE 300Z3 73.1 '6.6 93.3 9S.3 97.3 96.6 v9I 99.3 99.91 99.6 99.6 99.6 99.6 99.6 99.6 99.6(6! Z0I1 71.3 '6.6 93.3 9S.3 97.3 98.6, 99.2 99.6 99.1 99.9 99.9 *9.9 99.9 9.9 99.9 99.9

1i

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fit fi 11.3 F6.0 91.3 95.3 97.3 46.6 99.2 99.6 99.7 99.9 99.9 99.9 09.9 99.9 99.9 3090

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- A.

GLnL.AL CLIMAIOLOGV B8?NCl PE.CENTAGE FRE(UENCY OF OCCUNREICE Of CEILING VERSUS VISIBILITYLSAFETAC FROM HOUPLY (IdiSRVATI.hSAIR EATEIIR SERVICE/MIC7ST1TON NUPRLP: 7Z5267 STATION NAME: NIAGARA FALLS lAP NY PERIOD OF RECORO: 78-87

MONTH: jUN HOURS(LSTIZ ALL

CC IL ING VISIBLITY IN STATUTF MILESIt. | GE GE GE GE GE GF GE GE GE GE GE GE GE GE GE GE

FCET I 1C 6 5 4 3 2 1/2 1 112 1 114 1 7/4 S/ 112 5/16 1 / 0

N.O CEIL 1 13.7 49.1 51.1 52.7 53.6 S3. V 51.9 56.1 5q.1 56.1 59.1 56.1 56.1 5..2 56.2 56.2

GE D3CUI 66.6 2.6 56.1 56.5 57.6 57.7 57.6 S1.9 57.9 58.0 5.0 S8.0 58.0 s8.0 $9.0 56.1EX.lCO I 46.9 52-b SS-C 56.8 57.7 51. c 5?.l 56.2 58.2 58.3 5R.3 S.3 58.3 58.3 56.3 58.61

%16r'oI 67.0 52.9 55.2 57.0 57.9 skZ 59.3 58.5 58.5 55.5 51.5 S6s 58.5 58.6 $6.6 S.6E 1.r fl 67.7 13.6 56.1 54.u 58.9 59.2 59.3 59.6 59.5 59.5 59.5 59.5 59.5 59.5 59.6 59.6

:,'.12C01 69.6 5s.9 S8.3 60.5 61.6 61.7 61.6 62. C 62.t 62.0 67.1 62.1 62.1 1.2.l 62.1 62.2

4.E 131:00l S1.7 56.6 61.1 .3.3 66.3 64.7 66.8 66.9 65.0 65.0 6C.0 6S.0 6S.0 65.0 65.1 6S.1.E 91001 !?2 !9.1 61.8 66.0 6S.1 65.6 65.6 65.7 65.7 65.8 65.8 6S.8 65.9 6S.8 65.9 65.9-.E 8ECCI 54.n el.5 66.S 66.8 6a.: 6b6. 68.6 68.8 68.8 68.8 6A.9 68.9 68.9 66.9 69.9 69.0LE IPn1 56-9 2.9 6S.9 68.6 69.6 7 , 70.1 10.3 70.3 70.6 70.4 70.6 70.4 70.6 70.5 7D.5

b* 6GC| S6.2 66.6 67.S 70.0 71.? 71.6 71.p 72.J 72.0 72.1 72.1 72.1 72.1 72.1 72.1 72.2

GE 5SrjG S8.4 67.6 70.1 73.q 76.7 75.Z 75.3 75.6 75.6 75.6 75.7 75.7 7S.7 75.7 75.7 75.8v.8 6..1I 60.6 ?.6 73.9 77.0 78.6 79.1 79.3 79.5 19.5 79.6 79.6 79.6 79.6 79.6 79.7 79.71 , 60 60G01 61.9 72.1 7S.,97 l8. 8.5 8.2 1. 8 7 81.8 81.8 81.9 81.9 81.9 61.9 82.0 82.04C JCOt 63.3 ?J.8 77.7 80.9 82.5 A3.3 63.6 83.9 83.9 Aq*G 86.0 86.1 861.1 0.1 86.1 86.2(.c 3re|n 6s. 76.. 80.1 83.3 65.1 A6.0 86.6 86.7 86.7 86.8 86.8 86.9 86.9 P6.9 86.9 87.0

4 GE 2SLOI 66.2 77.5 81.8 8S., 87.2 88.2 88.6 89.r, 89.0 89.1 89.2 89.2 89.2 89.2 69.2 89.3" GE 2erOr 67.1 78.9 83.8 87.3 69.S 9C.6 91.2 91.5 91.6 91.6 91.7 92.7 91.7 91.8 91.6 91.8

4AE IFUi 67.S 79.6 86.1 87.8 9C.0 91.2 91.7 92.0 92.1 92.2 97.3 92.3 92.3 92.3 92.3 92.6GE i-c| 68.6 0.4 as.3 89.2 91.S 92.8 93.6 93.6 93.9 96.G 96.1 96.1 96.1 9t1 96.2 9.2.E 12:01 68.6 PO. $5.8 89.6 92.6 93.7 91. 96.6 96.9 9S.0 95.1 95.1 9S. 95.1 9S.2 9S.2

'c 1roL4 [email protected] '1.2 86.2 90.6 93.o S4.4 95.1 95.6 95.7 95s. Tc.9 9S.9 95.9 96.0 96.0 94.0GE 9G01 69. 11.3 86.3 9G.6 93.2 9%S 95.! 9S.8 9S.9 96.0 96.1 96.1 96.1 96.1 96.Z 96.2(AE 8COI (6.6 82:6 66.S 909 93:6 q50 95 8 962 96.6 96:5 9L.6 96.6 96.6 96.6 96.7 96.7I.E 73c 69.r *I 86.6 91 1 96.0 9Is 96.3 96. 97. q7.1 97.2 97.2 97.2 91.2 97.3 91.3(It #|CI 69fi. 1.S 86.7 q|,j 96.3 ob.6 96.7 97.z 67.6 97,S 97.6 97.6 97.6 97.? 97.7 97.?

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* 6! 09 69.0 #.t. a7.r. 91.9 9S. 96.9 98.0 96.6 V9.0 09.6 91.6 99.6 99.1 99.8 99.9 200.0...............................................................................................................................................

0IIAL kn114. Of OmSE8VATIOSs 719!

4.

w.L088L CLIMATIOLOGY PRAN4CH PERENT'AGE rAEIUENCV OF OCCIJR9L41CE or CFILI'IG VERSUS VISIBILITY

US8FLYAC FROM4 60014L9 ObSERVATIO4SAIR4 wrA1#.EP SERVIEE/mAC

STAT10ON 4UMERt ? S:'s7 STAT10ON NAME: NIAGARA' FALLS TOP VVy PEPIOD Of RECORD: 7784104411: JUL IOURSILS11: 00000D

IA CEILING VISIBILITY IN~ STAITE PILESIN4 I E GE GE GE GE GE GE GE GE GE GE Gr G E GE bE

FEET I ILI 6 . 4' 3 2 1/2 2 11/2 11/s 1 3/4 Sig 1/2 /16 14 0

NO CEIL 1 4.4.2 S.4' s8.%' 59.9 6C0 61.3 61.6 61.1 61.8 61.6 61.9 62.0 62.0 62.0 62.0 62.0

6E 23C01 $I.. S9.1 62.2 64.4 65.4 65.9 b6.3 66.5 66.6 66.6 b(--? 66.8 66.8 66.8 66.8 66.8

:ClfO 12 ' 22 6::%4 65.4' 65.9 66.3 66.6 66. 66.6 66.7 66.8 b-4 668 668 668p(.E 16I .53 19.2 62. 68. 65. 66.0 6.S 66.6 66.7 66.7 66.8 66.9 66.9 66.9 66.9 66.96E 14"3c.il 51.6 S9.8 62.8 65.1 66.0 66.6 67.0 67.1 67.2 67.2 67.3 67.' 67.4 67.4 67.4 67.4'4E 12,00o S3.0 61.s 64.9 67.2 L.8.3 68.6 69.:' 69.4' 69.5 69.15 69.6 69.7 69.7 69.? 69.7 69.1

.E 100001 5S.1 6.6 67.8 70.3 71.5 12.0 72.5 12.6 72.7 72.7 72.6 72.9 72.9 72.9 72.9 72.9uE

9roal I Sq,6 6.5-41 68.8 71.6 72.9 73.41 73.9 71. C 78.1 74'.1 74.2 76.3 74'.! 714.3 761.3 74'.3

GE 6!01I 58.1 i8.2 71.7 7S.1 76.3 76.9 77.4 77.5 77.7 77.7 77.8 78.0 78.0 78.0 78.0 78.0GIE 7- r1 59.1 E9.5 73.0 76.3 77.6 ?a.&. 79.0 79.1 79.4 79.4 79.5 79.6 79.6 79.6 79.6 79.6GE 6('Cnj 54.9 ?-,.% 74'.2 71.5 78.8 79.7 80.2 80.3 do.% 90.5 afy.6 80.6 60.8 80.8 80.8 80.8

GE s'.1001 62.3 73.2 77.7 81.3 82.9 83.8 880.3 864.4 88.6 88.6 801.7 86.8 6.8 @%.a 6ll.$ 868GE l'.l 6l.' 7S.1 79.7 m3.2 68.9 (!5.0 66.3 86.5 86.7 86.7 86.8 86.9 66.9 86.9 $6.9 86.9vE 8E00l 6e.* 76.1 80.8 88.6 86.2 87.1 87.6 87.1 86.0 88.0 56.1 88.2 88.2 P8.2 68.2 88.2CA 31,001 65.S 17.7 82.S 86.3 86.2 819.1 89.7 89.8 90.0 90.0 91.1 90.2 90.2 90.2 90.2 90.2GE 30009 66.9 81.0 86.7 88.7 91.1 92.2 92.6 93.G 93.3 93.3 93.8 93.5 93.5 93.5 93.5 93.S

bt 29.1 67.6 ".9 aS.7 89.8 92.3 93.3 981.0 94'.2 96.5 98.6 961.6 96.7 96.7 94'.? 96.7 94.76E 2fCoI 6q.2 P1.9 86.8 90.9 93.6 qft.5 9s.2 95.6 95.7 95.7 99.6 95.9 95.9 45.9 95.9 95.9GE Im"Ol 68.8 P2.3 87.1 91.2 93.9 96.9 95.6 9S.8 96.2 96.2 96.3 96.6 96.5 96.5 96.5 96.5frI~r100 66.7 92.7 87.5 91.7 98.6 95.5 96.1 96.3 9b6 96.8 96.9 97.0 97.0 97.0 9?.0 97.0GE 1V00I 61.9 '3.2 $$.1 92.3 95.1 96.1 96.6 97.0 97.4 97.4 97.5 97.6 97.6 97.6 97.6 97.6

G.E 1'001 60.9 .3.3 68.2 92.4 95.2 96.2 96.9 97.1 97.5 97.S 97.6 97.7 I7.? 91.7 97.7 97.7&E 9131 69.tk P3.4 68.3 92.5 95.3 95 97.1 97.3 97.7 97.7 97.6 98.0 98.0 98.0 96.0 98.0(,E R94 0.1 l 3.6 88.4' 92.6 9S.4 96.6 57.2 97.8 97.8 97.8 98.0 98.1 98.1 98.1 98.1 98.1UE 7001 E9.1 P3.6 89.4' 92.6 95.4 96.6 97.2 97.6 97.6 97.8 98.0 98.1 96.1 98.1 96.1 98.1bE (.,:1 69.1 *.J.", 68.5 12.1 91.6 %6.6 97.8 91.6 96.1 96.1 9e.2 98.3 98.3 48.3 98.3 98.3

I- hE OVI 61.1 83.5 88.5 92.7 95.6 9j6.8 97.64 97.8 98.3 98.3 94.6 96.5 96.5 98.5 96.5 98.5GE IscoI 69.1 83.5 86.5 92.7 95.t 96.9 97.5 98.1 99.5 95 9P.7 98.8 98.8 98..5 96 99.0(A ccC 9.1 'J.6 88.6 92.8 9S.8 97.1 97.7 98.3 96.1 98.7 98.9 99.r. 99.0 99.1 99.1 99.sI.E 201 t0.1 03.7 68.7 93.0 96.t, .0.4 98.1 98.6 99.2 99.2 99.S 99.6 99.6 99.7 99.7 100.0

bE I01 69.3 '3.1 88.1 93.c 96.0 Y7.4 98.1 98.8 99.2 99.: 99.s 99.6 99.6 99.7 99.7 100.0

(A ~ 69.1 *3.7 s6.? 93.0 96-1' 97.4' '64.1 98 99.2 99..2 94.S 99.6 99.6 99.F 99.? 300.0ON

TOTAL N098CR Of 0'SfRVATIONS$ 9SO

--.-

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GL33L CLIFATOLOGY BRANC' PEwCENYTIGE rREULNCY OF OCCUROPCCE OF CEILING VERSUS VISIBILITYUSAFETAC FROM F-OUPLY OBSERVATIONSAIR %tAIHE8 stRVjICE/M6C pSTATION NUPBER: 7Z52e7 STATICN NAME: NIAGARA FALLS TAP NY PEPIOD OF RECORD: 77-86

MONTP: JUL POURSILSTI: 0300-OSO

T CEILI'G VISIEILITY IN STATuTr MILESIN GE GE GE BE GE ,E GE GE GE GE GE GE GE GE GE GE

I FEET 1 6 S 8 3 2 1/2 2 1 1/2 1 1/4 1 3/ 518 112 5/16 1/4 0

NO CEIL I !.7 8b.7 89.9 52.1 5k.3 58.1 68.7 55.8 65.6 5s.8 S.9 56.0 56.0 S6.0 56.0 S6.1

IGE 2LCOOI 41.3 89.5 53.3 S6.3 50.0 56.8 59.7 60.3 60.6 60.9 61.0 61.1 61.1 61.1 b1.1 61.2I.E loC3I 81. 89.7 53.5 56.6 58.2 5$1. 59.9 6.5 60.9 61.1 61.2 61.3 61.3 61.3 61.3 61.8L.E IbVLCI 1 15 49,6 53.7 56.7 58.3 59.1 b,. 61.6 63.3 61.2 61.3 61.8 61.8 61.4 61.4 61-S6E 1:lLOl 81.6 .3.1 58.1 57.1 59.7 59.6 60.4 61.1 61.4 61.6 61.7 61.8 61.8 61.8 61.8 61.9G.E 12CCI 43.1 52.2 56.1 59.2 6].9 61.7 62.7 63.3 63.7 63.9 68.0 66.1 68.1 64.1 68.1 68.2

ilE brd 185.1 r.6 59.6 62.9 64.6 65.5 66.( 67.2 67.6 67.8 6P.O 68.1 68.1 68.1 68.1 68.2I.E 9U00O 86.6 56.6 60.9 68.2 66.1 67. C 68.5 69.1 69.6 69.8 69.9 70.0 70.0 70.0 70.0 70.1GE 8' 0 T1 47.5 '8.6 62.8 66.7 69.6 69.5 71.2 72.c 72.5 72.7 77.e 72.9 72.9 72.9 72.9 73.0.E 7L4CI 4S.2 C9.5 63.8 67.7 69.7 70.6 72.4 73.2 73.7 78.0 78.1 78.2 78.2 78.2 78.2 78.3LE 67001 9.6 61. 65.7 69.7 71.b 72.6 78.! 75.7 72.6 75.9 76.0 76.1 76.1 76.1 76.1 76.2

GE 5ri I -1. (8.8 69.1 73.2 7S.Z 76.2 7. 1 78.9 79.4 79.7 79.9 79.9 79.9 79.9 79.9 $0.0;iE 8'Znl $3.7 67.3 72.5 76.6 7R.8 79.9 81.7 82.6 83.3 A3.3 80.8 83.5 83.5 83.5 83.5 83.7

• GE 54.1 58.2 68.8 71.7 78.2 60.5 8l.6 83.5 88.8 88.8 85.2 85.3 85.8 8e. 85.8 85.8 85.5u. 3%'1 S5.7 70.1 75.5 PO.1 87.6 89.L 66.2 87.1 87.5 87.8 88.0 88.1 88.1 88.1 88.1 88.2b6

30C3 5b. 71.8 77.3 82z. , 8.5 86.: ba.8 95.2 89.7 90.0 91.2 90.3 90.8 90.8 90.8 90.s

V. Z!CI 57.7 73.1 78.8 f3.8 86.2 87.8 90.? 9j14 91.8 92.2 97.8 92.5 92.6 92-6 92.6 92.7IE 2'C I S-41.1 '3 . 79.2 88.2 68.8 Fe.8 91.E 92.C 92.5 92.8 93.0 93.1 93.2 93.2 91.2 93.3bE 1933 58.2 73.S 79.S 88.8

8 7.G E8.6 91.2 92.1 92.7 93.0 93.2 3.1 951 93.8 93.8 93.5

!.c I!CoI 58.6 78... 80.1 85.2 88.0 n9.1 92.3 93.3 93.9 98.2 9.8 98.5 98.6 98.6 98.6 98.7Gr 121I1 S.p 78.8 80.5 85.7 88.5 9L.2 92.8 93.9 98.8 98.7 94.9 95.1 95.2 95.! 9S.2 95.3

GE 1320 smo 78.7 8C.q F6.2 89.2 qI.G 93.6 98.6 95.2 95.6 95.8 95.9 96.0 06.0 96.0 96.1GE " .9 18.7 8.9 86.2 b9.; )1.G 93.7 98.7 95.3 95.7 95.9 96.0 96.1 96.1 96.1 96.26IE 6rJfl s5q. 78.8 83.0 P6.5 89.S 91.2 93.9 98.9 9S.5 5.9 96.1 96.2 96.3 96.3 96.3 96.SbE 701 50.0 78.8 81.c 86.S 69.6 91.3 98.0 95.1 95.6 96.0 96.2 96.3 96.5 96.5 96.S 96.6GE 600! 0.f 78.8 81.0 86.5 89.6 81.8 98.1 95.2 95.7 96.1 96.5 96.6 96.7 96.7 96.7 96.8

I.E ". SQ,* ?S°. 81.3 86.6 90.1 Z.O 98.7 95.9 96.6 97.1 97.5 97.6 97.7 97.7 97.7 97.86IE 8001 S7.c 75.2 81.3 86.9 91.8 ;.6 95. 96.5 97.8 98.0 9e6S 98.6 98.9 99.0 99.0 99.1bE ECI 59. 75.2 81.3 86.9 9.8 OZ.% 115.5 96.7 97.7 98.1 98.8 98.9 99.? 99.8 99.8 99.SGE ILOI 59.0 75.2 81.3 86.9 90.8 V*.. 91.7 96.9 96. 8.5 99.3 99.1 99.5 99.6 99.6 99.0GE 3I. I 59.0 75.z 81.? P6.9 90.84 3.6 9%.7 96.9 9p.0 Q6.5 9nn 99. 99.s q9.6 99.6 99.9

" (c "' 59.0 'S.2 81.3 86.9 9C*4 ;.. 9.7 96.9 98.0 98.5 9Q.*3 99.1 99.5 99.6 99.6 300.0

( I01AL hUhbLq OF 01S1VATIOtlS 93C

I7GL'WAL CL1M4IOLO)G'. 6681111 F CENTACJ rHEwUENlC90V O CC,'E'-CE OF CrILING VrRSUS VISIBILITYU41A LM LG fi,:4 TtkrENTa r~wE,~F HOcU'PLY OEOS[PVAT|ONS

£117 £LAIHL6 $ERV4Z1I68C

!,TilIOP% NUp:qER: 775287 STATION NAME: NIAGARA FALL% IAP NY PERIO0 OF RECORD: 77-86MONTH: JUL HOURSILTI: 0

6C0-0800

. . . . .' . . VISIPILITY IN STAIUTE MILES

I C. I iL GE GE ur b E 03 GE 1. GE GE GF GE GE GE GE3001 Ir 6 4. 3 2 112 2 1 112 1 1/4 1 7/4 S18 112 /I16 114 U

...............................................................................................................................................

NO CElL I !1. ur.4 4 5.6 9 .2 50., Z . 4 57.5 53.1 53.4 '3.4 53.7 53.7 53.8 53.8 53.8 53.9

'A( .CC 1 10.3 43.7 49.4 53.9 55.7 7.' 57.4 58. 1 S8.6 58.6 59.8 56.8 58.9 t8.9 58.9 59.0.r 331J :: 3 9:4 9. : 93.9 5S:7 t7.2 57.4 58 1 50.6 s .6 5-.F S8"8 58.9 8.9 58.9 59.0.E U1.( z.. 7 3.7 49.4 S3., 55o7 57.2 57.4 Sa.1 58.6 58.6 5.48 58.8 59.9 58.9 58.9 59.0

L.! 14rtI 34.5 43.9 49-6 S1.2 56.1 7.7 58.1 5p.7 59.2 9.2 59.5 59.5 59.6 59.6 59.6 59.755 IZ'.l 55.4 44, 50.6 5.6 S7.5 .9.1 59.6 60.3 60.9 60.9 61.1 61.1 61.2 61.2 61.2 61.3

L[ 1CG1 37.0 47.1 53.1 58.7 61, 1 62.8 63.2 64.C 64.6 64.6 65.1 6S.1 65.2 65.2 65.2 65.3,E IJUJ 37.3 47.1 53.9 59.7 62.3 64.0 64.6 61.S 46.1 66.1 66.6 66.6 66.7 66.7 66.7 66.8"E A ... p 4 9. 4 55.5 62.5 65.2 66.9 67.5 68.5 69.1 69.2 60.7 69.7 69.8 69.8 69.p 59.9(-E 7..PJ S9.5 '1 56.6 63.z 65.5 67.6 69.3 69.4 71.C 70.2 7..6 70.6 70.8 70.8 70.8 70.9

GE L 7, .!1q,1 57.6 64.4 67.3 C9.0C 69.7 73. 8

71.4 71.6 72.0 72.0 72.2 72.2 72.2 72.3

1,E 5 L I 1. 2.4 59.8 66.6 69.8 71.6 72.8 73.3 74.0 74.3 7 7 7 * 7 74.8 74.8 74.8 78.9..6 4' r;1 41.9 14.9 62.2 69.b 72.9 7.2 15.9 17.1 17.7 76.1 79.5 78.5 73.6 78.6 78.6 78.7GE %' CI 4.2 17.1 64.4 72.U 75.6 7b.1 78.8 80.2 d1. 1.3 81.7 81.7 81.8 81.8 81.8 81.9uE 3 -E 44.3 58.5 66.1 74.0 77.5 q- 1 i.0 82.5 83.2 93.5 84.0 84.0 84.1 84.1 84.1 84.2', !CLCI 45* 6 . 1 67.7 75.8 79.6 P2. 6 6.7 85.2 85.9 86.2 86.9 86.9 87.0 87.0 87.0 87.1

GE 2- L I @. R E 13.5 69.6 76.9 8.6 83.6 84.9 8b.5 67.2 A1.5 8P.2 88.2 88.3 88.3 88.3 88.4

L . co1 4." 61.1 69.2 77.8 81.0 9s. 66.3 88.C 88.8 89.1 89.9 89.9 90.0 qO.o 90.0 90.1, 1F "I 41 .61 .1.2 b9.5 78.1 82.3 '3,. 86.7 93.3 89.1 9.5 9P.2 90.2 90.3 QO.3 90.3 90.4

.a 1SII 1 46.6 L1.8 1 .3 79.2 64. F.7.3 48.6 9U. ? 91.1 .1.4 92.2 92.2 92.3 2.3 92.3 92.4t,E 171 47.31 12.5 71.L A0.1 65.1 . 8 .5 80.R 91.4 92.3 92.6 97.3 93.3 93.4 93.4 93.4 93.5

.1 1, C1 1703 (2.0, 71.3 s. 5 85.7 89.5 91.1 92.7 93.5 94.0 94.7 94.7 94.8 94.8 94.8 94.9GE 91 4.9 13.1 71.6 AD.9 66.1 P9.9 91.5 93.1 94.0 94.4 9.2 95.2 95.3 95.3 95.3 95.4(,F -12i 47.6 (3.1 71.6 AC. 66.3 9G. z 91. 93.4 94.3 '.87 95.6 95.6 95.7 95.7 95.7 95.82 7G1 41.6 '.,j 71 .8 81.2 f7.- 90.9 92.6 9%.2 9s.i '5.5 96.3 96.3 96.5 96.5 96.5 96.6GE (CCIa, 476 '.41 71.9 81.3 87.2 a1.2 93.n 94.6 95.5 9S.9 96.e 96.8 96.9 96.9 96.9 97.

* .< I47.6 6E!q 71.9 1.3 e7.2 91.2 93.1 94.9 95.q 96. 97.3 97.1 97.2 97.2 97.2 97.3(1 I 47.6 85.4 72., 41.4 e7.b 1 7 93.A 95.6 96.5 96.9 97.0 97.6 98,1 98.1 98.1 98.2

5 'o: 47.6 0.4 72. A 14 b7.6 L 1 7 9!.P 7S.6 96.6 .17C 99.6 98.6 99.0 99.0 99.0 99.2*iT 1' 47.6 63.4 72.0 41.4 87.1 '.*7 9!.8 95.6 96.6 7 "1 99.? 98.8 99.S 99.5 99.6 99.8LE I L % I 4( '.-.4 71.0 91.4 87.6 91..7 93.i 95.6 96.6 7.C, 90.7 98.8 99.5 99.5 99.6 99.8

16 I 47.f. f.4 72.2 '1.4 47.6 1,.7 93.q 95.6 96.6 .7.0 9A.7 98.8 99.5 99.S 99.6 100.0

101AL 6Nt F* A GF - SEt'VAI0.: '3L

E.LIJAL CLIMATOLOGY RRANCH PLNbCENYAGE FrE(.UENCY OF OCCURVENCE Of' CEILING VERSUS VISIBILITYUS LIE 7AC FROM HOU'Y OBSERVATIONSAIR .EATI-EFZ SERVICEI1IAC

STATION NMDEP: 7 5287 STAYICN NAME: NIAGAR A FALLS IAP NY PEPIOO OF RECORD: 77-6680414-: JUL. I'OURSILSTI: 0900-IICO

CE IIG VISJMILIIY IN SIATUYF MI1LLSIN IGE GE GE G E GE GE G L GE GE GE G E GE GE GE GE GE

FEE' 1-1 1 5 14 32 112 2 1 112 1 114 1 7/4 SIB 112 5/16 114 0

NO CLII. 1 37.6 45.9 -49.8 52.6 53.4 5 3. 1 54.0 54. c 59.0 54.0 54.0 514.0 54.0 54.0 54.0 54.0

G.E zococI 4'!.4 49.6 54.0 S7.2 58.Z S6.6 50.7 S8.7 bA.7 -;R.7 SP.7 58.7 58.7 58.7 58.7 58.7tE 1iar0I 40.5 49.b 54.3 57.5 58.5 5E. 9 59.0 59.0C 59.C 59 .0 59.0 59.0 59.0 S9.0 59.0 59.0I.E 16t; CI 40. 49.9 54.S 57.8 58.8 59.2 59.4 59.4 59.4 %9.4 59.4 59.4 59.4 59.., 59.4 59 .46f 14'coI 4 65 0.4 55.3 S8.7 5 9 .8 60.2 6n.3 60.3 60.3 60. 3 60.3 60.3 60.3 60.3 60.3 60.3GE 12' 01 Ill.1 1.5 56.6 60.1 61.2 61.6 61.7 61.7 61.?7 61.7 61.7 61.7 61.7 61.7 61.7 61.7

71OCC01 4!.2 15.2 60.5 64.7 65.0 6t.6 66.7 66.7 b6.4 66.8 66.8 66.8 66.9 66.8 66.8 66.6I.E 9 00c1 43.7 56.0 61.1 66.1 67.6 68.2 68.3 69.3 68.4 66.4 64.4 68.4 68.4# 68.4 68.41 68.4GE A'CrI 44.8 58.1 03-9 68.5 10.1 70.6 70.9 70. 71.0 71.0 11.0 71.0 71.0 71.0 71.0 71.0GE iiG01 41.7 '9.6 65.6 7a.2 72.3 72.9 73.., 73.fl 13.1 73.1 77.1 73.1 73.1 73.1 73.1 73.1GE 6!'(J0I 46.2 60.4 66.7 71.4 73.9 74.b 74.7 74.7 74.8 74.8 74.8 741.8 74.8 74.8 74.8 74.6

LoE 5C00 47.1 61.7 69.2 72.9 75.5 76.2 76.3 76.3 16.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5GE it.iCI 1 47. 5 62.6 69.4 741.3 76.9 17.6 77.7 77.7 77.8 T7.8 77.8 77.8 77.9 77.8 77.8 77.8

bE 4, 0c 4R.9 63.7 70.5 75.6 76.! 79.0 797.Z 79.2 19.4 79 .4i 7Q.% 79.4 79.4 79.4 79.4 79.4GE 31 '0 I49.5 E4.9 72.3 77.5 8 y. 3 P1. 1 61.3 81.3 61.9 Q1.4 81.4 81.4 81.4 81.4 61.4 8 1.4GE 3CE021 sn.1 C66.3 741.0 79.6 82.5 93.2 83.4 93.4 83.9 93.5 83.5 83.5 83.5 913.5 83.5 83.5

I.E 25:731 51.1 b7.7 75.4 81.1 814.1 P4. 9 85.3 85.5 65.6 45.6 85.6 85.6 85.6 P5.6 89.6 85.66E "'L;01 52.S 70.;. 75.1 83.9 87.0 88.2 89.5 88.7 88.8 P8.8 84.8 88.8 88.8 P86 $8.8 8.GE 187091 53.' 70.9 78.1 84.6 67.7 ".9 89.2 99.6 89.8 R9.8 89.8 89.8 89.8 99.8 89.8 89.8:GE 1"I 54.4 72.9 83.9 47.2 90.6 91.9 92- 92.7 92.9 42.9 92.9 92.9 92.9 97.9 92.9 92.9UE 1.051l S4.0 73.7 81.8 88.4 42.0 93.3 91.9 94.2 94.4 q4.5 94.5 914.5 94.5 94.5 94.5 9%.5

(,E 1loOCI 5-,.f 74.b 82.9 89.7 95.8 95.2 95.6 96.2 96.5 96.6 94 .6 96.6 96.6 96.6 96.6 96.6AE 9601j 5.6 74.6 82.9 89.9 94.1 95.5 95.9 96.7 96.9 97., 97.0 97.0 97.0 97.0 97.0 97.0GE er(oI 55.7 74.7 83..) 90.1 94.6 96.0 96- 97.3 97.5 97.6 97.6 97.6 97.6 97.6 97.6 97.6(;E 7009 55.7 74.7 83.3 9C.41 94.4 96.5 96.9 97.7 98.0 98.1 9P.1 98.1 93.1 98.1 98.1 98.1G.E (-001 55.7 74.7 83.3 90.4 94.9 "6.5 9f4*9 97.8 98.1 Qfl.2 9q.2 98.2 98.2 98.2 98.2 98.2

GE 5039 55.7 34.6 87.4 90.5. 9S.2 91,.7 97.4 98.4 96.6 148.7 941.7 98.7 98.7 98.7 98.7 98.7GE 47.39 !5.7 791.8683.4 90.6 95.4 q7.L 97.7 98.b 99.0 99.41 99.4 99.4 99.4 99.4 99.4 99.4LE !Cll S5.? 74.9 83.5 90.8 95.6 97.5 98.1 99*4 99. 99.9 9q.9 99.9 99.9 99.9 99.9 99.9I.E ?Lai 55.1 74.9 83.5 4j0.8 95.b q7.5 98.3 99.41 99.6 q9.9 10,.0 100.0 100.0 100.0 100.0 100.0I.E I co1 55.7? 74.9 83.5 c(J*8 95.6 17.5 98.3 99.4 99.6 09.9 100.0 100.0 100.0 100.0 100.0 100.0

(,E S 5.7 74.9 83.5 90.8 99.6 '75 94.3 99.4 99.6 19.9 lon.0 100.z 100.3 100.0 100.0 100.0............................................................................................................................

TOTAL NUMPlEPF? or OSERVAION$S: 930

GLORAL CLIPrICLOGV RRANCH PERCENTAGE rFEUEt$C9 OF OCCuR7EKCE OF CILING VERSUS VISIBILITYUS AFLEAC FROM HOUPLY ndSL9E1VAT08S

Ali wrATHEP SERVICElAC

STATiON NUFBER: 775287 STATION NAPE: NIAGA4 FALLS TAP NY PEPIO0 OF RECORD: 77-861108.1': JUL FOURSILSI: 1200-11400..................................................... ........................... ............................................

CE Lt.G VISICILITY IN SIATUTE MILESlN I GE GE GL GE GE GE GE Gf GE GL E GE GE GE GE 6

FEE: | ir 6 5 al 3 2 112 2 1 I? 1 1/4 1 '1/ 58 112 5/16 1/1 0

tit CEIL 1 37.6 46.3 98.5 19.7 99.9 q91.9 19.9 99.9 '19.9 19.9 19.9 199 19.9 99.9 119.9 99.9

bE .CCCl | ?.3 52.8 511.9 56.7 57.2 57.. 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2 57.2GE ie-ccl 42.P, 53.3 55.5 57.2 57.7 .7.7 57.7 57.7 ST*7 57.7 5 . 57.7 $7.7 57.7 57.7

GE 16CCCJ 43.3 53.9 56.0 57.7 58.3 56.3 58.3 58.3 55.3 [email protected] 5P.3 58.3 58.3 58.3 58.3 58.3GE 1f10031 111.9 !4.1 56.6 58.3 55.6 59.8 SP. R 58.8 S8.8 58.8 5o.8 58.8 58.8 e6.8 58. 58.8&E lZr|CI 44. 5-57 58.1 60.0 60.5 6L.5 60.5 60.5 60.5 60.5 6n.5 60.5 60.5 60.5 60.5 60.5

GE lIoCC| 4(6.! E9.4 61.0 63.0 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7 63.7.E 9,,i "7.1 59.6 62.b 611.8 65.7 65.7 65.7 65 07 65.7 65.7 65.7 65.7 65.7 65.7 6S.7 65.7GE 8(001 118.5 C1.5 61.6 67.0 68.2 6i3 68.3 68.3 68.3 68.3 6!.3 68.3 68.3 68.3 68.3 66.3

E 7CC1 149.4 62.7 6S.9 68.7 70.0 7,*l 7r.1 70.1 70.1 70.1 7.1 70.1 70.1 70.1 70.1 70.1GE 6r|Cc 5C.1 63.9 67.2 70.0 71.6 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5 71.5

UE 5-001 5n.9 65.6 69.1 71.9 73.5 73.8 73.8 73.8 73.6 73.8 73.8 73.8 73.8 73.8 13.8 73.8GE 41 GI .-2 £6.8 7n.1 73.5 75.2 04 .4 75.4 7 q .175.14 75.1 7. 75.11 75.1 75.11 75. 75.UE .00O| 52. 69.1 73.1 76.6 78.5 78.8 78.8 78.6 78.8 76.8 78.8 78.8 78.8 78.8 78.8 7a.S

, 35371 59*5 72., 76.9 0.5 82.5 F8 82.6 92.R 82.8 A2.6 82.P 82.8 82.8 F2.8 82.6 82.6

4E 3',) 56.7 75.6 80.9 811.5 86.9 P7.3 87.! 87.3 87.3 87.3 87.3 87.3 87.3 97.3 87.3 87.3

iE 21Col S.14 77.8 62.8 86.9 89.4 qc6, 9C0. 90.3 90.3 90.3 90.3 90.3 90.3 90.3 90.3 90.3GE ZG61 sq.p9 bu.2 65.5 89.7 92.2 S2.9 93. 93.S 93.5 93.5 93.5 93.5 93.5, 93.5 93.5 93.5GE

leuo| 60.1 '0.6 86. 90.2 92.7 93.q 91.0 94.1 94.1 94.1 94.1 94.1 94.1 94.1 911.1 91.1

(,E 1'l 61.1 R2.1 88.1 92.3 91.9 15. 96.3 955 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5

5E 11201 61.5 02.7 88.5 92.8 95.5 96.7 97.2 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3

GE 1c0!I 61.7 93.3 89.1 93.5 96.5 97.8 98.4 90.5 98.5 98.5 91.5 98.5 98.5 95.5 98.5 98.5U (, 9c1 61.7 03.3 89.1 93.5 96.5 '7.6 98.1 98.5 98.5 8 9.5 9 6.5 98.5 98. 48.5 98.5 96.56E PL|1 63.7 3.5 89.4 93.8 96.7 96.2 98.7 98.9 98.9 98.9 91.9 98.9 98.9 98.9 98.9 98.9GE 7C1 (1.7 P3.7 89.5 93.9 96.8 98.3 98.8 99.0 99.v 99.0 99.0 99.0 99.0 99.0 99.0 99.06E &Cnni 61.7 '3.8 89.6 9q. 97.0 I6.5 99.( 99.2 9q.2 09.2 99.2 99.2 99.2 99.2 99.2 99.2

3.0 c3I

61.7 3.1 89.7 911.1 97.: 06.6 59.4 99.6 9q.6 99.6 59.6 99.6 99.6 99.6 99.6 99.6GE 11,- 63.7 83.9 89.7 911.1 97.3 ;e.9 99.5 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7 99.7

E. !E c331 61.7 p$.9 89.7 911.2 97.4 S9.1 99.? 99.9 99.9 9.9 9-.9 99.9 99.9 99.9 99.9 99.9LE ?t| 61.7 030. 69.7 91.2 97.4 51 99.8 S00o. 1001.C 1"0.0 101'.0 100.0 10.0 100.0 100.0 100.0

r* I I 1 61.7 q3.9 89.7 911.2 97.41 19. 1 P I9. O c linJ.C IflO.C IE.0 C 00.0 100.0 1C'0.0 100.0 300.0

4 t, I L1.7 93.9 89.7 94.i 97.4 99.1 97.9 130. ju0 IUOc iO. 30.,0 300.0 100.0 C0.0 300.0 100.0

IOFAL NUMPEl OF OSFRVAYIO'!,S 931:

77

GLOITAL CLIMATOLOGY BRANdCH PENCENTAGE rREW)IENCY Of OCCURRDENCE Of CEILING VERSUS VISIBILITY5.SFElA V p -OURLY Ok8 189971065

AlA ii EaTIER SERVICE/PAC

STATION FUPIER: 7 '5267 STATION NAME: NIAbARA FALLS' 1AP NY PErIOD OF PECOPD: 77-86MOINTI-: JUL IHOURSOLS71: 1500-000

CEILIfi.j VISIPILITY IN STATUTE MILESIN GE or GE GE GE GE GE GE GE GL GE GE G E GE GE GE

F EE T I 1 6 5 14 3 2 112 2 1 112 1 1/8 1 !14 5/8 1/2 5/16 1./8 0

NO CEIL I q 2. Z 8 9.e 52.8 58.6i 54.7 "..7 581.7 54. 1 Sol.7 -6. 7 58.7 51. 7 58.7 S4.71 58.7 58.7

UE 2cri 8q.2 56.8 59.7 61.9 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2 62.2GE 18^'0l 88.? 56.9 59.8 62.C 62.3 62.3 62.3 62.3 b2.3 62.3 6.7.3 62.3 62.3 62.3 62.3 62.3GE 16rL.1 48.3 '7.Q 59.9 62.2 62.81 62.% 6Z.4 62.% b2.81 62.8 62.8 62.8 62.81 62.8 b2.4 62.86cE I4r-CO 1 .8 S8.8 61.8 68.2 68.8 68.81 64. 64.81 68.8 68.8 68.81 6.81 68.8 681.8 68.8 68.86.E 12000 1 51.8 TI.2 681.3 67 . t 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2 67.2

L.E lrCC.CI f3.1 63.2 66.7 70.84 70.9 70.9 70. 70.9 70.9 70.9 7'.9 70.9 70.9 7o.9 70.9 70.9GE 9i'cuI 53.7 63.9 67.7 11.7 72.8 7;.4 72.8 72.8 72.80 72.8 72.8 72.8 72.8 72.8 72.8 72.81(,E 803I 55.7 66.7 70.8 78.6 75.7 76.1 76.1 7. 61 7. 1 7 76. 7.1 76.1 76.1 76.1GE 70C11I 56.2 67.z 71.8 75.8 76.7 77.1 17.1 77.1 77.1 77.3 77.1 77.1 77.1 77.1 77.1 77.1(,[ 6CLUC1 56.7 68.1 72.8 76.8 77.7 78.3 78.81 TA. 80 78.81 78.8 7q.8 78 .8 78.8 78.8 78.8 78.8

4iE SrCCU 57.8 69.6 74.3 78.9 79.9 k60.8 80.5 80.6 u0.6 80.6 81.6 80.6 80.6 P0.6 80.6 8.I.E 8.15Q.6 72.0 76.7 81.6 82.7 83.2 63.1. 3. 83.5 83~ 8.5 83.1 8!s 3.5 83. 63.5 9 83.5G.E qC U01 61.1 784.3 79.3 88.5 95.8 F6. 3 86.5 86.1 $6.7 116. 7 96.7 96.7 86.7 86.7 86.7 86.7EE 3 u~0I 62.2 76.1 81.2 0!6.8 88.6 89.1 89.2 89.5 49.s p8~s 89.5 89.5 89.5 P9.5 09.5 99.5G.E 3rccl 0'.8 78.2 b3.4 89.6 91.6 92.3 92.8 92.6 92.6 92.6 92.6 92.6 92.6 '2.6 92.6 92.6

AE 2'CCI 68.80 79.1 684.8 90.5 92.6 ;3.2 91.3 93.5 93.5 q3.5 9-.S 93.5, 93.5 93.1 93.5 93.5G.E 2r..fll 65.6 80.6 86.1 92.8 98.8 95.1 95.3 95.5 9%.5 95.5 9.5s 95.5 95.5 95.5 95.5 95.5

G r 1900l fES.7 e0.9 86.6 92.9 98.9 9b.6 95.R 96.0 96.0 06.0 96.0 96.0 96.0 96.0 96.0 96.0(.E 1POI)l 65.7 51.r0 86.7 93.1 95.6 96.3 96.6 96.81 96.8 96.b 96.8 96.8 96.8 96.8 96.8 91b.86.E 1210 66.5 P1.9 88.(; 98.8 96.9 S17.7 99.0 98.2 98.2 98.2 910.2 98.2 98.2 09.2 98. 95.2

*I.E 1C*C0l b6.5 '2.3 68it.3 986.7 97.Z 9b.1 88y.3 98.5 98.5 98.5 98.5 98.s 98.S 98.S 98.5 98.5AE 9001 66.5 912.3 88.3 e8.7 97.3 9C.2 98' 99. 6 98.6 9 9.6 98.6 9 8 9.6 98.6 08.6 98.6 98.6GE '0011 66.5 P2.4 88.81 98.8 97.5 98.81 98.6 99.c 99.0 09. 99.0 99.0 99.0 99.0 89.0 99.0GE 70nl 6.X F2.4 88.81 08.8 97.5 96.81 98.6 99.c 89.2 99.0 qt 99.0 99.0 9~. 9.0 99.0 99.0(E 6A I 66.s F2.5 88.b 98.9 97.6 lif. 5 98.7 99.1 99.1 q9.1 09.1 99.1 99.1 09.1 99.3 99.1

,,E cllI 6,,.s F2.6 88.6 45.1 98.0 -.8.f 99.v 99.s 99.11 09.S 90.5 99.5 99.5 99.s 99.s 99.5G;E 800c1 6 6. 8 2.6 88.4, 95.1 98.0 sl8. 99.0 99.1 99.4 99.9 99.9 99.9 99.9 99.9 99.9 99.9G SF. !001 E6. -2.6 88.6 95.1 98.0 ;1. C 99.8 99.8 99.9 31 . .,I 0,.fn 100.0 300,0 100.0 100.0 300.0GE. o 2L6 0.% '2.b 88.E 95.1 98 .6 08 99.81 99.8 99.9 1 ̂ C. V o0r.0 100.0 100.0 100.0 100.0 100.0uE 11.01 66.5 12.6 88.6 95.1 99.0 99.0C 99.84 99.. 99.9 1'o0 100.0 100.0 100.0 1"0.0 100.0 100.0

Lit CI 66.S *2.6 8A.6 95.1 98.0 -i8.0 S9.4 99.e V9.9 110.O 3om.3' 100.u 10,1.0 100.0 300.0 100.0

TOTAL IiMf908' O'SC6VATllONS: 930

•*]) GLOBAL CLIMATOLOGY PCRANC6 PERCENTAGE ERLQUENc1 Of uCCUR"E C L 0 of CFILIG VERSUS VISIaLLIIYtS~rEar F10M HOUPLY OSSRV*1106i%

&IR WCA6R6 SE:NVICE/PA.C

STAIICN NUPMB: 7727 STA11C6 ANAME: NIAGARA FALLS TAP 1,V PEPIOD O RECORD: 77-66HnNTH: JUL HOURSILSTI: 10O.2ooc

....................................................................... '0"* '"......L...............................................

CLELIG VISIPILIIY I% siATir MILESl 1 1 .-E 6E GE GE Cr O GE G G GE IL GG ' G E GE GE 61

FELT I II 6 f y i 112 1 /Z 1 1/9 1 " SB I/2 ./6 1/q 0

NO CtIL I 9. . !4.1 56.7 60.1 61.2 61.6 61.6 61.6 61.6 61.6 61.6 61.6 62.6 61.6 61.6 61.6

bE .10C1 51.2 '8. 60.9 64.9 66.C 6b.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5 66.5E 1eCO| 1.:2 '6., 60.9 66.9 66.0G 66. 66.5 66.5 66.S 66.5 66.5 66.5 66.5 66.5 66.5 66.5

A 16 1 v 51. 58.2 .1.! 65.4 66.5 66.9 66.9 66.9 66.9 66.9 66.9 66.9 6.9 66.9 66.9 9b[ I. lGOI E3.4 61.0 69.2 68,$ 69.9 69.8 69.6 69.b 69.8 69.0 69.9 69.0 690) 69.8 69.8 69

1I ltll 1 $5.0 63.56 66.9 71.3 72.3 72.6 72.8 7z. 72.8 72.8 72.8 72.8 72.8 72.6 72.6 72.6

6E I.0() 1 517. 65.9 69.7 7.5 76.5 77 1.1 17.1 77.1 77.1 77.1 77 .1 77.1 ?7.1L E 9 rf C 1 5 .1 6 6 .3 7 0 .1 7 S .1 7 7 G ? ? , 5 7 7 .6 7 7 , 7 7 .6 7 7 6 7 7 6 ? . & 7 7 6 7 7 6 7 7 .6 7 7 .EI 87 CO 1 $9.9 69.7 72.6 77.6 79.68C.6 6 80, 800880.6 80t. P0.8 80.8 80.6bl 7' I 60.2 (9.2 73.2 76.9 8r.9 81.6 81.9 81.9 81.9 61.9 B1.9 61.9 81.9 61.9 81.9 81.9U E 6cc01 60.6 &l.8 73.9 79.9 82.? MS. 1 83.2 83.2 83.2 P3.2 63.2 63.2 63.? 03.2 803.? 63.2

.E ,10. ti. 71.3 76.0 82.9 6S.S F6.6 66.7 86.7 86.7 46.7 86.7 06.7 66.7 86.7 867 86.76E qr cI1 62.9 73.3 78.9 8.6a 86.1 89.1 89.2 e9.2 69.2 '9.2 69.2 49.2 69.2 q9.2 89.2 09.2.E "'31 69.9 76.9 8 .0 66.6 89.8 91.0 91.1 91.1 91.1 01.1 91.1 91.1 91.1 '1.1 91.1 91.1

A 35001 s. 5 76.7 82.3 86.6 91.9 93.2 93.4 93.1 93. 83.9 91.4 93.9 93.4 93.9 93.9 93.9.d 3SCh C6.7 71.3 63.7 90.4 S3.9 9b.9 95.6 95.6 95.6 95.6 9S.6 95.6 95.6 95.6 95.6 95.6

(A 2L-1I 66.P 70.5 t9o%0 90.8 99.2 95.6 96.0 96. C 96.0 96.c 96.3 96.0 96.0 96.0 96.0 96.06E 200I 17. 79.2 6.7 91.5 95.1 s6.6 97. 97.0c 97.0 97.0 97.0 97.0 97.c 47.0 97.0 97.0Ur 16C11 67.6 79.5 85.1 91.8 V5.% 97.1 97.3 91.3 97.3 '7.3 97.3 97.3 97.3 '7.3 97.3 973LE 1%Cli 6b8. 79.9 85.5 92.3 9i.8 57.5 97.8 97.8 98.0 96.C 99.0 96.0 98.0 '6.0 99.0 9.0auE I2cC 691. !C02 S.q 92.7 96.2 qe.c 90.3 90.3 96.9 98. 9P.9 96.9 98.9 g8.% 96. 98.9

6E 201l 69.9 pc.2 65.8 92.1 66.2 76.0 98.% 98. 98.5 8q. 96p. 98.S 96.5 6.5 98.5 96.5CE 9.01 69.9 Z.; @5.6 92.7 96.2 9k.c 98.9 96.9 96.5 q8.S 9R.5 98.5 98.5 96.5 90.5 96.Scr 63fl1 t88. 13.3 86., 92.9 96.6 969 99.@ 99.8 96.9 18.9. 99.9 98.9 96.9 66.9 98.9 98.9'A 7GCj 61.4 P3.3 66.0 92.9 96.6 6.94 90.1 98.8 98.9 98.9 9P,9 96.9 99.9 96.9 96.9 98.9AE ftCd t9.9 1C.5 66.2 93.1 96.8 S6.6 99. 99.0U 99.3 99.2 99.1 99.1 99.1 99.1 99.1 99.1

LE 'III 68.9 P3.8 86.S 93*3 97. 96.6 99.9 99.9 99.6 f9,6 99.6 99.6 99.6 99.6 99.6 99.6LE 9I.0i 60.9 00.6 86.s 93.3 97.0 9. 8 99.9 99.b 99.7 99.7 99.? 99.7 997 99.7 99.7 99.7A( 3cr 6*.4 -. 6 86.% 45.3 97?. 9%.t 09.9 99.5s 91.1 99.7 *'.7 99.7 9907 99.7 99.7 99.7bE ZLCc 64.9 c1.8 66.5 93.3 97.0 S.L 99.6 99.1 I1..0 10.0 30.0 130.0 100.0 200.0 200.0 100.0A. 1602 CA.% '.8 86.5 93.3 97.v 19.0 99.6 99.7 100.0 1. c, IGn.0 100.0 I0.0 100.0 20.0 100.0

aE t ba.i .0.8 86.5 '3.3 97. 49. v 99.6 99.1 ton.*. 1o.r I G".0 100.0 10U.0 110.0 100.0 100.0.................................................................................................................................... ......

tOIDL P.UMr-Ll Or Cf-.CkV6110PI5: sr.

. -5L

, o - _ _

L21PAL CLI"JIOLOGY PRANCH PENCEN7GC F6CIUENLY Of OCCII6PENCE OF CrILING VrFSuS VISIBILITYusIAFLTAC FROP OLI0Ly OUSERVAIIONS

5TATIO NU0RER: 715267 STAYICN NAM NIAG9 FALLS TAP NY PEPiO? OF RLCORD: 77-8 2MONTH: JUL HOURSILSTI: 2100-23CC

V, ICS'.. .. 91,1' 138V IN , T;r'';IL* ... .. .ILINJ GE GE GE GE GE (E GL GE GE GE r[ 6E GE GE GE 6["1"

rEET I Ic b 5 6 3 2 1/2 2 1 1/2 1 1/ 1 3/6 sib 112 S/16 1/ 0

NO CLIL 1 52.7 19.0 61.3 62.5 63.5 64.(0 64.3 66.3 6%.3 66.3 66.3 66.3 66.3 66.3 64.3 66.3

2r zoCMI 55.2 62.5 66.9 66.6 67.6 68.1 68.6 66.6 68.6 668. 60. 68.6 66.6 68.6 66.6 68.A8 1rlC0 02 62.5 66.9 66.6 67:6 66.1 69.6 6 6.6 66.6 68.6 66.6 66.6 66.6 66.6 66 ."4r 16 | 55.2 62.s 66.9 66.6 61.6 (8.1 68. 4 6.6 66.6 66.6 6'.6 66. 66.6 66.6 66.6 6.

'

ul( I1f6LI 55.6 l.1 65.6 67°. 68.6 66.8 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1 69.1

bE lirCls S0. 6b.5 69.1 71.0 72.3 7Z.7 73.0 73C 73.0C 73.0 71.0 73.0 73.0 73.0 73.0 73.0

LC 1D('0l3 6C.2 68.7 71.8 73.9 75S.5 75.9 76.2 76.2 16.2 ?6.2 76.2 76.2 76.2 76.2 76.2 76.2* E 9rLD0 6 1- P 69.9 73.0 75.2 76.8 77.2 77.5 M75 77. 77.5 77.5 77.5 77 5 70TSb.E 8tcc I b2.7 p3.2 76.3 76.9 60.6 11.1 61.6 81.6 61.6 65.6 81.6 6 1. 1 * 71. 61.4 77.5L.t v1'0 65.3 76.t; 77.1 79.6 61.7 2.j 67.6 82.6 82.6 02.6 87.6 82.6 82.6 82.6 62.6 82.6

:E 6rcl 63.9 76.8 78.5 91.% x3.3 P3.9 66.2 84e2 86.2 F4.2 8.2 8.2 86.2 86.2 66.2 8.2

6 I. 51'JI b5.6 77.6 81.3 .6 87.1 67.7 88.2 98.2 86.2 '8.2 8.2 88.2 88.2 P86.2 68.2 8.2b 6 .| 67.2 79.7 83.9 97.6 89.7 00.3 93.@ 90.f 91.6 90.8 9r.8 90.8 90.8 90.6 90.4 90.8.1. 6('GC 6R.2 1.C 85.2 46.6 91.1 51,7 9.? 912.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2 92.2

t'C 35:0I 6,.! 1.3 6S.5 89.1 91.6 ^,.0 2.5 92.5 92.s 92.5 92.5 92.5 92.5 92.5 9Z.S 92.5

L.E !'CO 69.4 .:.6 66.6 90.5 93.C 93.7 96.1 961. 1 96.1 96.1 94.1 96.1 96.1 96.1 96.1 96.1

I. 2 ?CU t . 7 '3.2 87.6 91.3 93.9 9".5 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 94.9.6r 28 2 7.0 =2 66.5 '2.6 95.2 95.8 96.? 96.2 96.5 96.5 96.5 96.5 96.5 96.5 96.5 96.5

*.. 58031 71.r 8.0 09.Z '2.6 V5.7 96.3 96.R q6,8

97.0 97.0 97. 97.0 97,0

97.0 97.0 97.0

r. 151. 71.3 '1.1 89.s 93.3 S6.1 96.9 97.6 97.6 97.6 @7.6 97.6 97.6 97.6 97.6 97.6 97.6

cc 10IcJ 71.6 's.6 89.6 93.8 96.6 77.3 970. 97.8 98.1 98.1 9R.1 98.1 98.1 96.1 98.1 90.1

(E 3rjGI 71.6 *!.S 69.9 93.9 -56. 97.5 98.1 98.2 98.6 90. 980. 98.0 96.6 As. 98. 96.6

A.L 0r3 ?1.( 45.5 89.9 93.9 96.8 97.5 90.1 98.2 98S 98.S 90.S 98.5 98.s 98.5 96.5 98.5g(E 8601 71.6 915.5 69.9 93.9 96.9 97.7 96.3 98.6 96.7 96.7 9q.7 96.7 961.? 96.7 96.7 96.7 17tr 701 1 73.6 95.7 911.1 96.1 97.1 68. 96.6 98.7 99.0 @9.0 9.0 99.0c 99.0 99.0 99.0 99.0U( 6..U 71.6 85.8 9.2 91o.Z 97,. 1.2 608.8 98.9 99.2 99.z 99.2 99.2 09.2 99.6 99.% 99.6

bE 1. I. | 71.f 86. 9n." 9".q 97.6 0. 99.0 99.1 99.s 99.5 99.5 99.5 99.5 99.6 99.6 99.6

C.[ % L 1 71.6 P6.*u 90.6 9q6.q q7.6 8.4 99.s 99. 1 99.5 99.5 99.5 09.S 99.5 99.6 99.6 99.6-E !r03 11.6 '6.0 90.6 96.6 97.6 180. 99. 99.1 99. 99.6 9q.6 99.6 99.6 99.7 99.7 99.7

k. a 7., 86.0C 90.6 96.5 97.6 16.7 99.6 99.5 99.6 99.9 99.9 99.9 99.0 Ic0.0 300.0 100.0G( Ic(J 11.6 P6. '; 90.6 q6.5 97.6 7.? 99.6 99.S 99.6 q9.q 99.9 99.9 99.9 10.0 1D0.0 160.0

ut -1 71.6 P6.,: g0. 9%.5 97.6 96.7 99.6 99. 99.8 99.9 99.9 99.9 99.9 1r0.0 1oo.o 300.o

...............................................................................................................................................

TOTAL NUMORt1 OF rOS0RVAIONS: v35

-Sr4

GLOBAL CLIMATOLOGY ('PANC6- P~kCEMIAGE FREQUENCY OF OCCimURPEK OF CFILING UrRSUS VlSloILzTYUSAFEI AC FROM 603.LY 06S(RVAlIOI6&IQ 81'ATHEP SERVIE/AC

57104FU7L:15281 S181104 NAME: NIAGARA FALLS lAP P.Y PERIOD Or REC0R0: 77-866MNT: JUL 0USLl: ALL

I GE G GE 6 GE . L GF. GE GE G G E E6 G EFEET 10 6 5 4 S 2 1/2 21 112 1 1 /is 1 f 54 5/8 112 1/16 1/4 a

..........................................................................................................................

NO CLIL 1 47.1 49.1 b2.8 55.1 56.0 '56-5 56.1 56.8 56.4 56.9 51.fl 57.0 57.0 S7.0 57.0 57.1

E .2000 4'.! S4.0 57.4 60.? 61.3 f1.6 67.0) 62., 6Z.3 62.4 67.4 62.% 6Z.5 62.5 62.5 62.5*.E 18n 01 145.6 54.1 S57.6 60.4 61.41 61.9 6 2.2Z 62.4 F,2 .5 62.S 62.6 62.6 62.6 62.6 L2.6 62.6

UE ItCOri 4r, 7 4.3 57.1 60c.6 61.6 62.2 6201 62.6 62.7 62.7 62.8 62.8 62.6 62.6 62.6 62.8* A 14--01 40,41 t5. 58.7 &1.6 62.7 t3.2 63.5 63.1 63.6 63.6 63.9 65.9 63.9 63.9 63.9 63.9

I.E 12 CCI if0.1 57.2 60.8 63.9 65. 3 65.6 6s.0 66.C 66.2 66.2 66.2 66.3 66.3 66.3 66.3 66.3

ixE 100001 i9.pt .8 63.F 67.3 69.7 e4.3 69.6 69.6 69.9 70. 7r.1 70.1 10.1 70.1 10.1 70.1k.E 9C01 5.? (0.7 64.8 68.5 70.1 Ir. 7 71.1 71.3 71.41 71.5 71.5 71.6 71.6 71.6 73.6 ?1.6LE b'00I 5.0~ 63.E: 67.3 71.4 73.1 13.8 14., 740.4 74.6 74.7 74.7 76.6 74.6 74.6 14.8 74.6

4.E 7-c2i -'.7 64.2 66.3 72.5 74.3 35.1 75.6 75.b 76.0 76.0 76.1 76.2 76.2 76.2 76.2 76.2G* c8 60l' 5!.4 c5.0l 69.5 13.6 75.8 76.6 77.0, 77.3 77.5 77.5 77.6 77.6 17.6 77.6 77.6 77.7

I.E SCOI So4. 7 6.7.0 71.9 76.5 701.7 79.5 60.3 90. 3 80.5 It0. 5 80.6 60.6 0. 90.7 60.7 60. so7(It 45121 S5.9 69.0j 74.1 78.9 81.1 0.1 82O.5 012.9 8 3.0 03. 1 8 3.2 83.2 81. 3.2 83.2 03.p3A. 4000 CCI57.1 70.6 75.8 80.8 81.2 P4. 2 84.7 65.0 85.2 415.3 8$.4. 85.41 85.41 354 85.41 85.54E 3 ,L0 I S I.'! 72.2 17.1 62.4 65.4 06.4 87.0 87.4 67.5 R7.6 87.7 67.7 87.7 67.7 87.7 67.6

1E £'LOI 54).5 74.1 79.6 f5.1 67.9 84.1 89.1 9G1.l 93.3 90.3 9r%5 90.5 90.S 90.5 90.5 90.5

UE 2'CnI 6'.2 75.1 80.9 86.f4 89.2 9C.41 91.1 91.6 91.7 91.8 91.9 92.c 92.0. 92.o0 2.0 92.06E ., 2 c I 61.3' 76.4 82.! 07.8 90.7 42.1 92.9 93.3 93.5 93.6 93.8 93.8 93.6 93.8 93.8 9 3.8GE 3q,(;[ 63.3 76.7 82.1 88.3 91.? 92. 93.3 93.4 94.0 94.3 9(4.2 94.3 94.3 '41.3 94.3 94.5tA0 V1 C 1.6 11.5 83.6. 89.3 92.41 q3.9 94.1 95.1 9".41 l.5 49.6. 9s.7 9S.7 95.7 9%.7 9s.?

GE 17CO I 62.2 18.0 84.2 90.0i 93.2 04. 7 95.6 96.1; 96.3 06.4 96.5 96.6 96.6 96.6 940.6 96.6

LE 1' 2 62.4 78.3 84f.5 90.5 93.e !5.4 96.3 96.8 97.1 47. 2 97.3 97.11 97.4 97.4 9 74 97.41&IC 9r(2 62.4i [email protected] 84.6 90.5 93.9 Q5. 5 96.40 96.9 97.2 97.4 97.5 97.5 97.6 97.6 97.6 91.61,E OZI 2.S 7R.5 111.7 9C.? "14.2 15.b 96.7 9?.. 77.6 97.7 97.9 97.9 97.9 97.9 97.9 97.9uE 7CO1 62:5 79.6 :,1 84. 9C:.6 94.4 ;b: C 96.9 97.5 97.8 979 981 41 963 6. 9.1 92LE(. t 0t' 62.; 78. 64.9 909 94.5 6.2 'I7.3 97. 9879. '3 .96.3 98. 98. 98.

,, ~rl 62.! 78.8 85.2 a*j 44. 7 9t .4 97.4 44.3 44 .4f 98.5 94.? 98.6 96 911.8 96.8 94.8itE ? 4 t]1.5 71.8 8s.1 91.1 944.1' %,67 97.7 98.4 9.8 901.9 99.1 99.2 99.2 99.3 99.3 99.3

AE %oC 62.5 76:8 85.1 91.1 914.9 96.8 97.4 96.5 94.9 :993 9::46 99.41 99. 096 9.s9*ZG D I00 t2. 1S 8 6. 1. 50 , 90.0r 98.7 09.3 93 99.6 99.7 99.6 99. 99. 99.9

G- .1 3.01 62.! 7q.0 65.3 91.1 95.C 9'. 9 98.1. 98.1 99.1 99.! 944.6 99.7 99.6 99.6 99.9 100.0.0 2 f2.5 78.0 85.1 91.1 9s.0 'lf.9 9m.t0 q0.7 94.1 19.S 99.6 99.1 99.8 99.6 99.9 100.0...........................................................................................................................................

WILL 0 6 me 1 or 0i srRUAlLo 12 7440,

€" & d~fflr SRV] I L

z.L

LLOOAL CLIMAIOLOGV PRANCI PEkCLNTAGE FREQUENCY OF OCCUROENCE OF CEILING VtRSUS VISIBILITYjSAFETAC rHoM HOURLY OBSLRVATION5AIR o.#NES. SERvItEIMAC

!16AION NUP3ER: 72528? STATIcN NAME: NIAGAkA FALLS IAP NY pEIJOM Of R COPO: 71-86Q(WT:H AUG HOURSILSI: 0000-0200

............................................................................................................................

CEILING VISSILITV IN SlATUTF "ILES

IN I 5E ar G7 GE GE GE GE 61 GE GE GE BE BE GE 61 GE

FEET Ic 6 5 0 3 2 1/2 2 1 112 I 114 1 31/ Si 112 %/16 1/4 0

hO CEIL I el.f 08.1 09.8 S0.6 51. 51.6 SZ.4 52.5 52.S 52.8 57.9 S2.9 S2.9 S2.9 52.9 S2.9

6E 2OODi 01.1 O.5 52.S 53.8 54.6 S5.1 55.7 55.8 55.9 S6.2 56.3 56.3 56.3 s6.3 S6.3 56.3G.E 10GG0 i31 '3S 52.5 - 3 . 8 58 5* 5s.6 55.8 55.9 56.2 56.3 $6-3 56.3 56.3 56.3 56.3

'.1 I CoCJ '41.3 s3 .6 SZ7 50.0 5A.) 5 3 ss.9 S6.1, 56.1 56.5 56.6 S6.6 56.6 56.6 56.6 56.6

LE 11CUl 43.S '1.0 52.9 6A.2 bS.1 SS.5 56.1 56.2 56.3 56.1 56.8 S6.8 S6.8 56.8 56.8 S6.8

E 12rGtI 00.6 '2.4 S.S S6.5 51.0 1.8 SR.5 58.6 58.7 S9.0 59.1 59.1 S9.1 59.1 59.1 S9.1

..E 1 OCLr 07.1 .s 58.6 60.6 610 62.6 63.3 63.0 63.5 63.9 60.0 60.0 60.0 61.0 60.0 60.0

. 9ELCI 41.3 51.8 60.3 62.5 63.5 6.01 65.2 65.3 65.0 65.7 65.6 65,8 65.8 6So6 6S. 65,.

.E s'DI 1 1 *2 1 60.1 66.5 67.7 64.6 69.0 69.5 69.6 69.9 n.I0 70.0 7.0 70.0 10.0 10.0*( 7rc l ,1.7 61.1 60.9 67.3 69.1 69.1 70. 10. 6 7 106 1.0 11.1 71.1 71.1 71.1 ?1.1 71:1.E 6.ot 53.Z E3.S 66.8 69.0 Me°8 71.7 1?.S 72.6 12.7 13.O 11.1 73.1 73.1 13.1 13.1 73.1

,, sr i 5C.I !,. 1 S6.6 69.8 72.0 1.6 71.8 15.6 15.? 15.8 16.1 16.2 76.2 16.2 ?6.2 76.2 76.24E 07.. oI '.6 69S. 72.p 7S.6 77.3 78.0 79.s 79.6 19.7 83.0 60.1 0.1 80.1 80.1 60.1 80.1* .! 0LLSlj 71 . I. 18 .5 60.0 ql. 82.9 13.C 63.3 03.1 83.6 83.8 8.8 83.8 63.6 83.8E Pt Sl S 73.7 71. 1 o. 8g. 826.8 tq8l 88.S 8S.S 85.8 46.1 86.2 86.2 86.2 66.2 86.2 16.2

',E 3Co| eT.6 75.2 79.Z 62.? 8i.8 .6.1 87.S 81T. 88.1 48.4 8.S 98.5 66.S 8S. 68.S 88.S

.E '5,7 (1.1 16.C 80.1 83.S 85.1 67.1 68.6 96.8 89.1 99.5 80.6 89.6 89.6 P9.6 69.6 89.6

..E 2-6fl (.1.3 71.3 01.6 85.41 81.6 P9.6 91.2 91.5 91.6 92.2 97.3 92.3 92.3 92.3 92.3 91.3,E 1 | #.1.% 77.0 61.7 85.6 61.@ 49.8 91. 9.17 92.0 9Z.0 92.s 92.5 92.S 92.5 92.5 92.siE 15001 61.9 78.5 82.9 96.9 89.2 91.5 93.3 93.7 94.0 90.3 Va.% 901. 90.6 90.0 90.0 90.0

..: ;Ccl t2.1: '8.6 81.1 61.2 83.9 92.2 004.1 94.!P 90 9S.2 9;.3 9S.3 95.3 95.3 95.3 95.3

GE 1rI L:.r 78.8 63.0 971. 90.5 9Z.9 90.9 95.6 9S.9 96.2 9'.3 96.3 96.3 96.3 98.3 96.3SE L 6..r 78.8 83.S 87.6 9C.6 #$.0 9S.1 95.1 96.G 96.3 9h.s 96.5 96.S 96.S 96.S 96.S

.1 ?C-.| (.?r ?8.9 83.7 la*u 90.9 93.2 9S.4 96,| 96,S 96.6 97*0 97.0 91.0 91.0 97.0 97.0

IX( fL0i t2.r 's.9 43.0 08.1 91*c 913 9s*s 9602 96.6 96.9 91.1 91.1 97.1 91.1 97.1 91.1

.f 'ECJ 62.r,? 8.9 i&. 011.2 91.i "JeS 9s.? 96.5 V6.9 97.2 9?.4 qT.4 97.4 97,S 97,0 91.7(.1 4on| 61.0 19.9 83.8 46,$ 91.4 ".,9 96.0 97.1 VIS 97.8 99.1 99,1 94.| 90.2 04.4 99.4'A lorl 62.r 78.9 83.8 A4,3 91.4 Qft, %6.1 97.5 94.z *iS iq.? 96.1 98.7 96.8 99.0 99.0

liE 7ceI t?.c 78.9 63.8 88.3 91.0 0%.1 96.1 96.L 99.6 99.C 9.2 99.2 99.2 99.5 469.6 99.6

'GE 30l 62.r ?.$ 83.6 06.3 91.0 -1.I1 96.? 9.L 96.6 99.c 99.0 99.0 99.0 9 .6 99.0 100.0

( TOTAL NtUPpit Or ObSVIONS 0Sa

--

CLOH8L CLI-AfOLOG' FQANCH PENCEIAT8CE FIJEGUE 99E Of OCCUR-PE.CE Of C3-ILING VASUS VISIBILITY4USAFEIAC r RON HOURLY ObSERVA ITONS

£3ta 6187336 579,1(/MAC

STTO 51*30. L8EP: 1.25287 5111139. NAME: IJIAGARA FALLS TAP '.7 PE"IO0 Of RECORD: Il-86pow":13 AVG6 I-OLSiLSTI: 0300-05032

.............................................................................................................................................CEILP-6V1!IPILITY IN. STATUTE MILES

114 GE GE1 GE GE 6 (A1 GE1 6t G 61 CE(I GE GE GE GE GEFEET I 1- 9. S 4 112 '1 1/2 1 1/4 1 3/4 5/8 1/2 W/IG li/t 0

;JO0 CrIL I 3t.7 q3.u 994.94 4S.4 6.6 117.2 97.9 47.1 9 7.7 98.1 990.2 98.2 498.3 f98.S 98.? 98.7

'.E dXEC32 3..4. 96.1 490 49.1 51-2 i1.b 52.2 521.5 5.5 52.8 57.9 52.9 53.0 -3.2 51.9 53.4(.f WWI 21 39.9 46.1 49.6 99s.1 5!1.9 ! I. 6 5 2.: 52.5 2.5 5,2 .8a 57.9 S2.9 S3.0 55.2 53.91 53.4

(.z 1920 !-.4. 46.; 98.3 99.1 52.9 !,1. 6 52.2 52.5 1.2.5 S2.6 51.9 52.9 53.0 53.2 53.4 S3.09I.E 190.01 34.8 96.6 99.9 99.6 51.3 S-.0 52.E SZ.9 52.9 '.3.2 5!.s 53.5 53.41 53.1 51.9 53.96C 1 " LI51 31.9 985.1 %9.q 5 1.I 52.9 bq.3 594. 7 55.3 1 55.1 55.91 5%.6 55.6 SS.7 55.9 56.1 56.1

*c 1.323.03,If 10.0 '1.b 5".1 i5.3 51.9 '6.8 59.7 60.3 632.3 '.4 6".6 60.6 60.8 63..) 63.2 61.2... 9^201 92.6 112.1 55.1 56.3 Sol.? 6...1 61.0 6* 61. 9 l1 61.7 63.9 61.9 62.0 "2.3 62.S 62.5A, rO Ino 64.n '6.2 58.7 cf.! 63.2 ..6 65 .5 65.S 65.9 66.3 66.6 66.6 66.7 66.9 67. 1 61.1:,E 7I . , 7.9t 6 !. 1 63.9 69.1 ('6.2 61.1 61.S 67.5 be8.31 64.2 68.2 68.3 68.5 68.7 66.?6E1 6, wr 1 97.' ? 9.4 62.2 691.1 66.8 68. 3 69.9 69.6b 69.9 70.2, 7.% 70 .9i 73.S ?0.8 11.0 71.0

It Sf3 5;- 9,9.4 62.2 65.2 613 71.0 11.5 12.7 73.3I IT.1 73.5 711.0 73.8 73.9 79.3 79Y.3 79.3E q9 9' 22 51.1 (4.1 67.9 69.1 72.8 19.91 15.6 76.1 76.3 76.4 77.0 77.a 11.1 7?.3 77.5 17.5~( %C'.~i ;1.c 56.5 69.9 72.5 75.8 11.5 78.9 79.1 19.1 90.3 11 .S 80.3 80.9 80.6 80.9 80.91.1 S!.t' C9.6 72.S 75.1 79.8 br-l 8 2.2 P2.S 82.9 95.3 8 3.5 83.5 $307 83.9 89.1 89.1f.( 312"I 59.94 71.1 79.2 76.9 8).9 03.r, a.$ 81S5 85.3 95.7 815.9 85.9 86.0 P6.2 46.5 86.5

z.E a '14.0 7 7Z.6 79.8 71.5 a1.51 '3.6 85.! 86.L 841.3 1 A6.6 9.8 86.8 86.9 91.1 87.3 87.341 rorl 59.1 13.3 76.0 19.32 63.u. %.3 87.1 886.6 88.7 99.1 80.6 89.1 119.5 499. 89.9 89.9

LE 1 r,-.ElI Sts.1 1.$ 76.1 79.z 83.2 u,. 2 G..9 16.46 88.9 89 .9 % 9.6 89.6 89.7 89.9 90.1 90.1ix3 3'..21 t5.2 12.5 77.1 11-1 115.5 Pa.6 9C08 91.6 91.1 '2.2 91.4 92.9 92.S 92.7 9?.9 92.9ur 1or1fI 5.3 12.7 78.2 93.6 86.0 IS.1 93.7 92.b 92.6 93.0 9-.2 93.2 93.? 93.S 93.8 93.8

f.1 1323201 5. 5 73.1 79.9 83.o 87.6 SL.8& 93.2 99. 3 99.s '9.9 9 q. 9.z 9S. ? 9S.5 VS.? O5.?X1 9CI S.4' Ps. ? 19.. P3.0 87.6 n3.8a 9 3 .: 991.3 96.5S 94.9 9S .2 9S.2 9S.3 95 95.7 9S.14c f1 7-* 55 1' ?.8 1.. " 3.1 87.1 9E2.9 93.9 991.5 990.1 95.2 95;.94 9S.9 95.5 9S.7 9S.9 95.9321 7?.I S,.S 1!.g 79.6 83.2 87.1 93.1 9!.? 991.1 99.9 95.9 10'.6 95.6 VS.? 9S.9 96.1 96.1t1 '2321 SS.' ?3.9 79.6 83.2 81.8 51.3 93.7 991.1 V41.9 9S.4 9'..6 95.6 95.7 *%.9 96.3 96.3

A G %~g'.6 19.32 79.7 83.3 88.9' 93.2 Y3.4 99*5, 9S.3 9%.1 9-.9 95.9 96.0 96.2 96.5 96.5.EA t c.2 5.# 79,3. 79.1 83.4 89.2 91.9 9q.? 9S.9 $9..! 96.4 9'r. c 91.2 97.3 91.3 97.5 97.5('r '.31 S5.6 19s.2 79.1 93.5 89.1 .1.5 99.9 96.! 96.h 9.7 97.96 97.9 97.5 01.7 98.0 98.0(.F S' 56 79. t. 70.7 @3.5 891.35 1. '0 r9. 9l.L v1. S 8.2 99.2 98.2 98.3 *a.% 98.7 98.7-E ILCI ?.47.32 79.1 83.5 98.3 41.6 994.q 97..r 917 q8., 90.% 48.6 98.9 99.0 919.2 99.6

*.1 "". lq1.2 7907 1..5 84.5 q3.6 99.9 ?1.. 91.1 as.., 90.S 98.6 98.8 99.0 99.2 100.0

ISIAL htLV O CU 0'518983103i: "itL

IL . ....

IL-L CLIMIb0Lbv IICH PENCENTAGE F~tIJUECC OF OCCURPECC Of CEILING VERSUS VISIB1LIIV"s ifFT A r8o 5814 OURL ObSEQ8AlIONSAIR d5ATHCRS ERVICE/PAC

.TATION NLP14ER: 7.57A S 6AT114 NA*MC: NIAGARA FALLS IAP All P~qIODOf 05 8600: 17-86M".NT6: AUG I-OUpSILSIO: 0600-0800

.............................................. ..................... .......................................................................E ILI.16 VISIEILIIV IN STATUTE "ILES

11, 't CE GE I.E GE GE GE Gf G.E GE GL BE GE BC GE BEFEET 11 t" . 11 3 2 112 2 1 112 1 1/14 1 -/41 SIG 112 S116 1/6 0

N.o (Et.I ?.9 !2.b 36.6 !9.6 631.6 43. 1 63.6 43.8 664.0 %46.1 66.5 44.6 06%.s 664.6 f46.8 q4.7

i4 -Cr .I Z-. q 6.6 40.4 %5.8 65.8 -68.1 649.9 49.61 49.1 "0.2 53.6 60*6 60. S 0. 6 30.8 S1.0.E 36 2 1.9 '6.6 640.40 63.8 4S.8 66. 1 66.9 619.4 69.1 S0.2 %I.S 60.6 5O.S S0.6 60*R S1.0(-E I f'Cl1 29.9 '6.6 4n1.4 63.8 6.8 %b. 1 1601.9 69.64 49.1 90.2 51.5 60.5 92I.5 S0.6 S0.8 61.0I.! 14"O01 3-.6 17.6 61.6 466.6i 617.9 6..2 S1.3 S ~s91.6 .3.S6..1 S.? 613517 S.4 61.9 S2.2,,E I f'LGOI 33.3 IR.S 62.6 466., 6 8.9 S1.6 S.4 2.8 $3.1 93.8 94.3 96.2 96.2 96.1 56.6 Sit.&

U.E 3.YCnl 1,.r '1.6 69.? 69.1 62.9 5S.7 57.2 91.1 68.3 se.7 69.0 59.1 59.1 S9.2 $9.6 99.6tE '.-LCJ 34.? 612.60 67.2 63.6 SS '.2 ". 69.9 60.S 61.0 63.6 63.q 62.0 62.0 02.2 62.1 62.5CIE ""'CuI 36.0 66.9 69.61 66.1 35*I1 61:3 1, .2 bo.C 66.6 6S.1 69.6 6.5 65.6 65.6 66.? 61.9A~ I"1')l 3E.4. 4b.2 63.8 96.8 69.8 63. 1 6N.! 66.3 66.6S 61.1 67.6 61.6 67.6 61.6, 61.1 64.0A 6E0~ 37.1 3 66.9 61.6 96.S 6c.4 (.4.2 66.3 67.1 67.6 68.3 60.6 68.1 68.7 68.8 68.9 69.1

t.C $1 LIC 39.6 49* 1 66i.1j s9.d 64.11 67.6 69.R 70.t 71.3 11.9 72.3 72.6 72.61 72.6 12.6 72.6GC %g 01I 47,2 1.1 69.1 60.6 66.6 t9.2 73.8 12.8 11.6 lq. 7.1 16.8 . 7%.8 16?.9 16.1 16.3A. #4r CC I 63.(, 931.9 87.0 62.6 8?r.? 1 1. 6 76.2 76. 3 78.0 76.8 71.2 71.3 71.3 11.6 11.6 17.1.C 3'CCI 41.! 562 9.6 6S.3 11.0 16.6 716.1 19.1 79.9 I60b 83.1 83.2 83.2 51.3 $1.4 81.6A.C cc00 I ' '5.6 61.6 88.0 76.1 78.6 83.40 62.6 83.3 P6.2 86.6 86.1 86.1 86.6 so.$ 66.2

t4 ZI'.jI 661. S.q 62.0 68.6 76.3 P9. 9 d2.4 56.z 44.9 4.. 86.1 86.2 36.2 P6. 3 86.6 86.1fE :'Col ".;.1 .6.1 63.3 10.2 16.9 Z.j 89.1 46.i 4 1.? 98.8 89.2 89.6 59.6 89.s 8901 89.9

* .r '.rt 66.7 1 7.2 63.9 73.i) 77.7 q2.9 86.1 61.6 48.6 69.1 911.1 90.2 90.2 *0.1 90.6 90.8*.E 1,31 616. 1 es. 3 64.9 12.s 79.6 6%.1 G 81., 89.1 91-.6 631.1 9?.2 92.3 92-3 92.6 92.6 92.8A l-L:VI $ft.2 80.6 66.3 73.0 74.9 its.6 89.C' .. b 61.6 02.6 9;.0 9S. 1 91.1 05.? 93A6 93.1

It IA 1~ 41# 6.7 56.1 66., 73-11 &C.9 qb.S 9C.1 91.1 92.? "O.L 96.6 94.6 96.t, 96.6 96..8 96.1iI *1.,'I 66.1 99.1 66.C 13.9 81.0 '.6.1 90.91 '..2 91.2 96.9 96.9 96.1 95.1 9S.2 96.61 96.6.It 061; 68.7 1.2 66.1 74... 61.3 i1.L 91.P1 97 91.8 qs.3 96.9 9S.6 96.6 96.7 96.9 96.1

* E ILk %F.1? '9.61 66.2 16.2 61.6 A7.4 93.6 43.2 66.3 96.6 '06.n 96.3 96.1 96.? 96.s 96.8* .I 4 6.1 19.S 66.3 16.6 83.6 '1.1 63.1 40I.5 961.6 %5.9 96.3 96.S 96.6 96.6 96.8 91.2

IA 4! 6.1 7 . 66.3 74.6 63.9 08.2 V2..? 96.3 96.2 96.6 91.0 91 91.1 91.Z 97.6 98.0ocoC 4916.7 19.6 66.3 146.6 83.9 po. 2 97.3 96~9. 61 ,1.2 9. 76 6. ?? 9

'.9 -001 4A.? 16.S 66.3 16.7 82.r 44s.3 '07.5 96.6 VS.? 913 91.6 98.0 98.0 66.2 96.6 98.9* C ..11 46. 7 1.9.& 66.1 16.1I 6'.o 6p. 3 97.f 96.1 VS.6 97.3 95.1 9. 8. 86 98g 9.

LI II 166.1 19.s 66.j 16.1 P2.0 "8. 3 92.6 "6.1 911.5 91.6 951.7 95.4 9o.? 90.9 99.2 99.9

%ftI 6.? 19.5 66.3 16.1 IA2.!! 08.3 9p?.6 96. 1 99.5 76 9. 98.6 98.1 94.9 99.3 108.8...........................................................................................................................................

TOTAL IsumILp air O'SEPVAtjok6: 930L

*Lf&vAL CL!6A|DLOG RR6NCP PERCENTAGE FREQUEICY Of GCCUMOIENCE OF CEILING VERSUS VISIBILITYLSAILTAC rNOH H0UQLY 031LPV0TIONSAIR irAWiEP SERVICEIP'AC

STATION hUP"EP: 7,S287 STATION NAME: %IAGAPA FALLS lAP Ny PERIOD OF RECORO: 77-6MONTH: AUG HGURSILS1I

1 O900-1100

..................................................................................................... ....................................CEILING VISIPILITY IN STATUI MILESIN I aL GE GE GE GE 6E GE GE GE GE GE GE GE GE GE GE

FEET I le b 5 6 3 2 1/; 2 112 1 1/ 1 It/% S/8 1/2 S/16 1/q 0............................................................................................................................

NO CEIL 1 29.5 b.c 36.6 61.U 4107 4i, 3 4Z.3 62. 6..6 62.6 62.6 62.6 6s2.6 2.6 62.6 62.6

LE 2urcOi 'o3 41.1 43.p 6.3 7. ! o6.1 46.1 8.2 66.2 68.2 ip.2 68.2 8.2 48.2 68.2 68.2IE 1 &'.13 3!?. f 1.3 q.C 66.6 67.7 6t.3 68.3 66.6 68.6 68.q 6.61 18.4 66.6 48.4 68.6 68.66t 16-Lri !3.7 11. 66.2 l66. 68.0 4E.5 48.! 8.6 68.6 8.6 6. 6 68.b 68.6 68.6 86.6 68.6GE 134105 36.6 62.6 165.4 6.3 69.6 rO.1 57.1 S0.2 S0.2 'O.2 51.2 50.2 50.2 S0.2 50.2 50.2(.E 12-I3 35.P 66.6 67.8 51.u 52.3 52.8 52.e S2. i S2.9 c2.9 57.9 S2.9 52.9 S2.9 52.9 52.9

LE I C%3 31.8 1.6 S3.1 36.3 56.6 51.1 57.l 57.3 57.3 S7.3 57.3 S37J 57.3 57.3 57.3 57.3..E 9-C! 33.( 66.8 52.S 5.8 58.3 58.6 58.6 59.1 59.1 59.1 $9.1 39.1 59.1 39. 1 59.1 39.1ur 8rc0 7s.c i0.1 56.2 SI,3 g'.1 6,.6 60.6 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0 61.0,.E 7L01 *-.7 't.1 3.3 ! .4) 6.6 '-2.5 62.6 62.9 62.9 62.9 67.9 62.9 62.9 62.9 62.9 62.9(6t £00 60. 52.2 36.3 60.0 63.2 63.8 63.9 66.2 66.2 6q.2 66.2 64.2 66.2 66.2 66.2 664.2

.E .f CrI1 63.0 36.7 59.6 63.2 C6.9 67.6 67.5 67.6 67.8 67.6 67.8 67.8 67.8 67.8 67.8 67.8

LE l| 61.6 '3.6 60.8 66.8 6P.6 69.1 69.2 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.6 69.66E q 21l 4. b6.3 61.8 66.0 69.7 7C.6 70.6 71.c 71.0 71.0 71.0 710 7 1.0 71.0 71.0 71.0E 3'CI 66.2 €9°7 63.6 69.9 73. 16.6 796 76.9 79 79 76. 9 7.:9 19 76.9 769% 76.9'E 3C0| 66.7 62.8 68.7 76.1 783 19.7 79.9 83.2 80.2 s02 80.2 80.2 80.2 80.2 80.2 80.2

E F4i' 69.6 f6.2 70.3 76.1 80.6 Pi.2 82.6 82.8 8.8 2.6 8 2. 82.8 82.8 A2.8 62.8 828•2-( 2C1 5l.7 O.Z7 73.8 80.2 86.8 q7.0 87.3 87.7 87.7 87.7 87.7 87.7 87.7 87.7 87.7 67.7

Z.1 lP05 52.6 (8.1 76.7 81.3 85.9 R8,1 86.6 89.0 89.0 69.0 89.0 89.0 89.0 89.3 89.0 89.0Or I3OI C6.3 70.9 78.2 PS.1 93.1 3.0 93.7 96.2 9o.2 '4.2 96.2 96.2 96.2 96.2 96.2 96.2'I 1:1lD 56.S 71.3 79.s 66.1 91.9 )6.1 95.6 76.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1 96.1

1,E I'Lrj 56.7 73.5 79., 87.l 92.7 95.8 96.6 97.1 97.1 97.1 97.1 97.1 97.1 97.1 97.1 97.1;'E "Jc 56., '2., 79.8 87.6 93.2 96.3 97.1 97.6 97.6 *7.6 97.6 97.6 97.6 07.6 97.6 97.6* - .ozi 5s.2 72.3 81.1 88.2 93.8 97.0 97.7 98.6 98.6 98.t 99.6 98.6 98.0 98.6 986 98.6NE 73C3 5-.3 72.4 80.3 88.5 96.1 q7.3 9F.2 98.6 98.8 98.8 96.8 98.8 98.8 98.8 96.8 98.8

,LI ! . 721 83.3 88.6 96.2 47.6 98.3 98.0 98.9 98.9 99.9 98.9 96.9 98.9 98.9 98.9

6C 9.1 '35.3 12.3 80.6 69.0 96.6 98.0 98.9 99.6 99.6 "9.6 90.6 99.6 99.6 99.6 99.6 99.64.t q5 tq.! 72.s 10.4 9.1 96.9 9.6 94 6 10..0 l ja. ra.o x o0.o ioo o0,0 1(0.6 0oOO 1000.0.r looJ SC.3 '".s 80.6 f9.1 96.9 9F.6 99.6 130.0 I1.0 10.0 lo.0 100.0 300.0 100.0 300.0 300.0GE S31 3%. 72.5 0.6 49.1 96.9 08.6 99.6 1030. I03.0 i17.o io.0 ioo.U 103.0 100.0 300.0 300.0.f L131 53 72.s 80.6 89.1 96.9 46.6 99.6 In.C 100.0 l'o.o IC3.0 100.0 100.0 300.0 100.0 100.0

GE - 5S.3 72.3 80.6 89.1 96.9 It6. 99. 130.0 !03.0 100.0 10 o). 100.0 300.0 1(O.0 300.0 100.0.............................................................................................................................................

TOTAL ftUhPRIQ Of OIERVATINS: 95n

-L

I . .. . . . . . ..

ALnBAL LLIMAIOLUGV PkANCH PLkCENTAIGE rRQUENCV OF OCCUROE.CE oF CEILING VERSUS VISIBILITYuSAFETAC FROM 6OUQLY OBSERVATIONSAIR VEATI(R SERVICE/04AC

51YA810 NU"PEP: 76287 STAIICk NAME: NIaGARA FALLS IAP 14V ERI00 Of RLCOPO: 1T-6.5MONTH: AUG HOURSILSTI: 120OO-I

0

CEILIIG VISIPILITY IN STATUTE MILESIN I fi GE GE ir GE GE GE GE GE GE 01 G GE E GE GE

FEET I Jr f 5 A 2 1/2 2 1 112 1 1/A 1 3/A 568 1/2 1 6 I/A 0

NO CLIL I 1.! !6.7 38.b 39.1 A'41. 1 I,1 0.1 40.1 40.1 40.1 A.l I A40.1 '40.1 '34.1 '40.1 '40.1

6E 20COI1 35.7 '41.6 aq.c 04 .8 q6.c 46.2 '46.2 '46.2 646.2 46., Al.2 16.2 '46.2 46.2 A6.2 46.2'E 1atOCi P50 '4.9 4A.3 AS.2 %6.3 46.6 '6.6 A6.6 46.6 46.E '6.6 46.6 A6.6 46.6 '46.6 46.6u.E 167C1 36.1 '42.G 4A.A '45.3 '46.6 4L.? A. '46. at&. ' 46.7 '46.7 ' 46.7 '46.? '46.7 A6.7 '44.?AE 1A':OI 37. A3.A AS. '6.7 '4.c 8. Z 'C.2 "a. 4 8.2 8.2 40.2 Al.2 A8.2 A8.2 48.2 A8 .2i.E 12r1CI 3S.9 45. 9 48.7 '49. 61.1 I1.3 51.3 31.3 ! - I .3 51.3 61.3 S!.3 51.3 S1.3 51.3

ix 2COOf| '1.1 A992 6.'Z 53.7 5S:% b.6 65.6 SS.b 55.6 55.6 55.6 56.6 66.6 SS6 55.6 SS6E 9!'U101 A .9 al 53.1 s49 57.0 ,. 2 57.A 57.4 57.A 57. 615. a S?*, 57. 577A

5 7 A 5.A

6 .E dnl C 6 A/.1 12.2 65.3 57.1 59.5 1;9.7 59.9 59.9 59.9 59.9 50.9 59.9 59.9 59.9 59.9 59.9I.E 71l Al*. !3.2 s6.5 58.§ 63 . 61 2 61.5 61.5 61. , :.S 61 6.6 61.5 61.6 61.S 61.5*.. 6C01 t... 13.5 7 58,9 61.A 61.8 6Z,2 62. 622 2 62.2 62.2 62.2 62.2 62.2 62.2 62.2

(E SrO)I A(.I 56.8 59.A 61.1 6A.2 6A.8 bS.2 65.2 65.2 65.2 b..2 65.2 65.2 65.2 66.2 65.24. AC| '4.1 8.2 61.9 6A.A 66.9 67.5 67.8 67.8 68.0 68.C 6P.0 66.0 68.0 68.0 68.0 68.0

"E q1o| 50.S 61.3 65.3 66.2 7n.9

71.5 71.8 71.6 11.9 71.9 71.9 71.9 71.9 ?1.9 71.9 11.9(E 5u1 5 6. r 6A.2 60.3 71.2 7.2 15.2 7 75. 75.5 75.6 75.6 75.6 76.6 76. 75.6 75.6 76.6

I b jE tLI 56.C 69.9 710 77.4 80.9 61.9 82.3 82.3 82.4 P2.4a 87. F 82.4 82.4 82.4 82.F 82.4

! ,E /r1| !-.2 73.5

78.5 81.1 85.2 06.3 86.7 P6.7 86.9 P6.9 66.9 66.9 86.9 R6.9 86.9 86.9G.E 2'01 Ef' 75.9 81.1 4A. 88.6 g.2 90.5 90.6 90.8 90.8 9n.8 90.8 90.8 90.8 90.8 90.81,E IP r') 6 '6.5 81.7 PS.7 89.7 61.3 91.6 91.6 91.8 91.8 91.8 91.8 91.8 91.8 91.8 91.8

E I5001 61.3 77.7 83.1 87.1 92.0 S4.L 94.5 94.5 9%.7 94.7 9'4.? 94.7 9%.? 9A.7 9A.7 94.7A( l:1,01C 1.S 78.2 83.9 88.9 91.1 95.3 85.P 's4.6 96.0 q6.0 9f..C 96.0 96.0 96.0 96.0 96.0

tE I, L.I (2.O 79.1 85.1 90.2 9A.1 96.9 97.A 97.6 97.P 97.8 97.8 97.6 97.8 97.8 97.0 97.8,.E oo1 6?.? 19.2 8.2 9.3 9468 97.0 97. 97.7 98.0 08.0 90.0 98.U 98.1 98.0 98.0 98.06t 04cn 0,.2 79.5 8S. 8. 5 95.2 '7.3 981, 98. 99.s o8.5 9.15 08.5 98.S 98.6 90.S 98.s4 cE 7n0 62.2 77.5 Is.4 90. 95.2 r7.3 91.1 98.4 98.6 98.6 98.6 98.6 98.6 98.6 98.6 98.6

GE 6[11 67.7 79.9 86.1 91.3 96.C le. 9P.9 99.2 99.5 99.S 99.S 99.6 99.5 99.6 99.s 99.$

't ':'!l 62.2 p0.2 86.s 91.7 96.5 ',6.6 99.4 99.7 99.9 99.9 '99.9 99.9 99.9 99.9 99.9 99.9

I,[ 41UO 62.2 -1.2 86. 92.7 96.S 98.6 q$,6 99.8 1 0.0 100.0 1 0o.0 100.0 00.0 IC0.0 100.0 100.0 :I' 361 62.2 40.2 86.5 91.1 96.q 98.6 99.S 99.3 130.0 IrO.C O.0 100,0 100.0 100.0 100.0 100.0A 2.02 10.2 02.2 96, " 1. I 96.5 .b Nt,5 99.8 1u.0 1, 0 I 20.0 ICO.0 *00.0 100.0 109.0 100.0

CE IrI 62.? ', . 86.b t1.7 96.5 "8.6 V9.5 99. 200.0 21,0.0 1 *0. IO0U 1 00.0 0.01 100.0 200.0

C :A 62.2 PO.2 86.5 ;1.? 96.5 9.6 99.% 99.e I0.o l01.0 I03.0 100.0 100.0 100.0 200.0 1o.0..............................................................................................................................................

TOTAL NUNREP OF O'StPV%TIOIS: 00

1LUB8L CLIPAIOLOiV SRANC8 PERCENTAGE FREGENCY Of OCCVRPECE OF CEILING VERSUS VISIBILITYUSAF EAC FROM FOURLY OdSERVATIONSAIR *EATHER SERVICEIMAC

STATION hUMP(R: 7Z5287 STATION NAME: N11GARP FALLS IAP NY PoIGOO OF RECORO: ?7-66MONTH: AUG HOURSILST): IS00-1700..... ..... ..... ..... ..... ..... ..... ..... ..... ..... .... ..... ..... ..... ..... ..... ..... ..... ..... ..... ....

ILI 6 VISIRILIT, IN STATUTE MILESIN I CL GE GE GE Gr GE GE GE GE GE GE GE GE St GE GEFEET I 10 6 5 4 3 2 212 2 1 1/2 I 1/4 1 1/4 5/8 112 !16 114 0

N O CEIL 1 39.8 60.3 06.8 07.1 65$ 4*C . 06.6 08.6 44.6 18.6 4P.6 08.6 08.6 06.6 08.6 8.6

('r ?IC11 01.9 E0.6 53.5 0.6 55.8 b6.0 56.0 s6.c 56.0 56.0 56.0 56.0 56.0 56.0 56.0 56.0t,. ISrool 45.1 c0.6 53.7 S4.8 56.0 S6.2 56.2 56.2 56.2 S6.2 56.2 S6.2 56.2 S6.2 56.2 56.2LE 16E Eirj 51 0 O .b 53.7 50.8 66.0 56.2 66.2 56.2 56.2 S6.2 56.2 56.2 56.2 !6.2 56.2 56.26.E 10001 0.7 !1.6 5S.5 S5.9 67. 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 57.6 S7.6 57.6b6E lrcal 47.6 50.2 57.3 58.8 00.o 6C.6 61.6 60.L bu.6 (0.6 60.6 60.6 60.6 60.6 60.6 60.6

.E 3I001 50.3 57.% 60.9 62.6 b0S 60.7 66.7 60.7 60.7 60.7 66.7 60.7 60.7 60.7 60.7 60.7 .GE 9001 SO.P 86.1 61.7 63.7 65.6 65.9 66.0 66.0 66.0 66.C 66.0 66.0 66.0 66.0 68.0 66.06E 8!Cal s?. 6c.s 60.9 67.8 73.C 70.3 70.1 70.5 7O.5 70.5 70.5 70.5 70.5 70.5 7O.5 7oSA;E 7CtI 5.9 62.0 66.6 69.6 7|.7 72.3 72.5 7272.5 72.5 7 7 . 72.5 72.s 70.5 72.5 72.5E i 6e00 51.1 63.8 68. 71.0 77.1 !.1 73.9 73.9 71.9 73.9 73.9 73.9 73.9 73.9 73.9 73.9

uE SCC0I 59.C 67. 72.c 7S.6 78.0 78.5 78.7 78.1 78.7 76.1 76.7 76.7 78.7 78.7 78.7 78.74.E 45 01 59. 1 f,9. 70.3 78.1 80.6 61.3 63.5 81.S 81.5 '8.5 81.5 81.S 81.5 81.5 81.5 61.S51 10:01 60.6 71.0 76.3 80. 83.1 63.9 8.1 60.1 80.1 80.1 80.1 80.1 60.t 0.1 80.1 8.1.E 3t£cr 62.2 73.1 78.2 82.7 65.7 A6.6 86.8 6 86.6 06..8 66.8 88.6 66.8 66.6 86. 66.6(,E 3'LOI 63.7 75.3 83.* 65.7 6.9 869.6 90.0 90.0 90.0 90.1 9r.1 90.1 90.1 90.1 90.1 90.1,

C.E Z5.I 60.7 '7.0 82.9 87.6 91.0 92.0 92.6 92.6 92.6 92.7 947A 92.7 92.7 92.7 92.7 92.7A. aCol 66.C 76.S 6.1 89.9 91.7 .7 96.9 9S.1 95.1 95.2 95.2 9S.2 95.2 950. 95.2 9S.2iE i3E3 66.1 78.7 80.9 90.3 96.2 's.3 9S.5 95.6 9S.6 95.7 95.7 9s.7 9S.7 95.7 95.7 9S.7.E 1001| 68.6 79.0 G5.7 91.1 9S.3 1&.3 96.6 96.7 96.7 9668 96.8 96.0 96.6 96.6 96.8 96.8

L.E 1 "0 66.6 79.7 86.1 91.6 9S.0 96.9 971 91.2 97.2 97.0 9101 97.4 97.4 97.0 97.0 97.0

b I:ooI 66o7 R3.0 66.6 62.2 96.5 q7.5 97.7 97.8 97.8 96.1 90.1 98.1 98.1 66.1 94.1 96.1CIE 9c11 66.7 03. 86.6 92.2 96.. 97.5 97. 970. 97.6 08.1 90.1 98.1 98.1 08.1 98.1 98.11( 01 LC 1 66.7 *,.1 86.1 92.3 96.6 97.6 97.6 96.0 98.0 96.2 90.2 98.2 90.2 98.2 96.2 98.2GE 701 ('6.1 00.1 66.7 02.S 97.1, 41.2 96.6 96.1 98.7 98.9 90.9 98.9 98.9 98.9 98.9 98.9bf b CC I 66. 0C. 66.7 92.6 97.2 98.0 96.8 96.9 98.9 99.3 99.1 99.3 99.3 99.1 99.1 99.1

'A '.'I 68.7 *.1 86.7 92.7 97.0 C8.6 94.0 99.1 9 9 .1 99.5 99.S I.S 99.5 09.S 99.5 99S.5k 0Cr 66.7 Z.1 86.7 92.1 97.0 '14.6 99.0 99.1 99.1 99.6 99.6 99.6 99.6 09.6 99.6 99.6

LE 'G C 66.7 q0.1 66.7 92.1 91.06 "66 v9.0 9901 99. 1 09.6 90.6 99.6 99.7 99.7 99.7 99.7. r.01 L6.7 p0.1 66.7 "2.1 97.!. 6.8 99.3 99.6 99.0 99.9 94.9 99.9 100.0 100.0 300.0 100.0I.E 1 IL.7 60.1 66.7 92.7 I7.5 .6.6a 99.2 99.0 99.6 9.9 qves 99.9 100.0 100c. 100.0 300.0

E 66.7 60.3 6607 92.7 97.5 9 8.8 99.2 19.6 90.0 19.9 99.0 99.9 100.0 i00.0 100.0 100.0

...........................................................................................................................

f TOTAL hUmotp or ovsP88AT3o68 930

ULOBAL CLIMAIOLOGY BPAt.Cf- FhcFtTAbr FREQUENCY OF OCCt'RPEfPCE OF CEILING VERSLS VISIBILITYJSAVLTAC rf0M HOUCZL. OBSERVATIONSAI1R 6EATHER S[RV6ICE/AC

STATION NUPPER: 7Z5287 STAT ION 1IJHE: N1A8(ARA FALLS IAP NY PE'TOO OF RECOPO: 77-66MONTH: AUG HOURS(LSTI: IO'-2000

LEILIP6 VISIPILITY IN STATUTE MILESIN I L GE GE GE GE 16t G L Gr GE GE SE GE GE GE GE GE

FEE I 1' 6 5 8 3 2 112 2 1 112 1 118 1 1/9 58 112 $116 11/ 0...... ..... . . . . . .. . ..... ... ... . . . . .. . . . . .. . . . . . .. . . . . .. . . . ...... ° . ° ° . ... ..° . ..... ....

N0 C[IL I 3l.C 88.8 87.1 48.3 50.3 ;U.8 51.? 51.2 61.2 31.3 51.3 51.3 51.3 Sj.3 51.3 51.3

,E r 0i1 48.8 -2.7 55.b 57.c 59.7 L.2 62.6 60.6 60.6 6C.8 6 .9 60.8 60.8 60.8 60.8 60.6,E I8rc.| 44.8 S2.8 55.7 57.1 69.9 (. 4 b0.Q 60.9 6q.9 61.0 61.0 61.0 61.0 61.0 61.0 61.0-FE 16'C.31 81,4 52.9 55.1 57.1 59.9 #. 6.Y 60.9 9i1.9 .,I C 61.C c1.0 61.0 61.0 61.0 61.0

1.E 1 -LC 45.7 SO.7 57.8 59.8 62.4 6d.9 63.3 63.3 63.3 63.8 63.8 63.4 63.0 63.8 63.% 63.8L07 1ZCOI 87.8 6.s 60,3 6z.0 65s.3 6.8 66.2 66.2 66.2 66.3 66.3 66.3 66.3 66.3 66.3 66.3

A5 I:,tulI 91. X1.3 65.8 67.8 71 71.8 72.3 72.3 72.3 72.4 77.8 72.8 72.8 72.8 72.8 72.8E0 9CrI 51.q 62.3 66.3 66.5 72.3 73.0 7. 73.8 73.9 73. 71.5 73.5 7.5S 73.5 73.5 73.5

"r Sr :I

S'.] 6.3 68.5 71.1 75.3 160. 76.5 76.6 76.5 76.6 76.6 76.6 ?6,6 76.6 76.6 76.6

(.0 7'13 l !4.7 s.5 (.9.3 72.s 16.P 13.6 7FP.1 19.1 7R.1 78.2 7A.2 78.2 78.2 78.2 78.2 78.2.E 6L01 55.6 67.1 71.8 74.1 1 R.7 79.1 8C.3 90.3 80.3 q9. 80.8 80.8 80.8 80o 80.8 80.8

I.E -Ct 15, 7 ,. 4 15.1 78.1 82.7 43.7 8.3 8.3 88.3 8.4 8.81 e8.8 884. P4.4 8l.% 88.85- 9 .1 506 72.8 17.7 8C.9 85.6 F6. 8 87.8 87. 87.8 975 875 87.5 7 5 9".5 87.5 87.5

."r 8rL3l 6C0. 73.9 79.1 82.8 61. 8.8 B9.5 89.5 8-.S 99.6 89.6 89.6 89.6 R9.6 89.6 89.6,r 3,L' I 61.3 74.% 80.. 933.5 o9.7 91E. I 9?.9 90.8 90.8 90.q 9n.9 90.9 90.9 90.9 90.9 90.9LfA 3rcit tl. 76.1 81.1 A5.2 90.8 q1.8 92.S 92.6 92.6 0 2 .7 91.7 92.7 92.7 92.7 92.7 92.7

I.E 2' C 1 73 76.9 82.9 06.6 92.0 ,3. . 98.3 98.2 98.2 98.3 98.3 98.3 98.3 q%.3 98.3 98.3f! 2C71 C2.e 7110 83.5 P7.2 92.8 98.3 98.9 95.3 95.3 4S5 9S.5 9s.s 9S.5 05.5 9s.s 95.51.E I-I JJ I t.1 ?S.L ao .1 87.1 93.3 90. 9S.5 95.6 96.8 96.u 96.0 96.0 960 96.0 96.0 96.0L E0 lL'l 63.3 18.3 8.5 98.6 99.3 lb.9 9.6 97.C v7.0 97.2 97.2 97.2 97.2 97.2 97.2 97.2LE .' LCI L. It 7F.5 8.68 88.9 98.7 Se.3 97.0 97.S 97.9 97. 7 97.7 97.7 97.? 97.7 97.7 97.7

,, OCetl (3.8 7J.7 8S.2 89.2 95.2 17.0. 97.7 08.1 98.3 Q.5 90.5 98.6 98.S q8.5 98.5 98.5

LE 1; uI (.4 70.7 85.2 89.2 95.2 7.0 97.7 98.3 98.3 9P.5 99.s 98.5 98.5 98.5 98.S 98.5.E F Pl c 'A 74.7 86.2 p9.2 95.2 07.2 99.1 98.6 90.6 98.8 99.8 98.8 98.6 98.8 98.8 96.6LE 7cmi 6 5 7.9 85.5 89.6 96.5 07, b , 98.'9 9d.9 19.1 90.1 99.1 99.1 99.1 99.1 q9.1.E f Eq 67! 79.9 85.5 99.6 95.5 '7.6 99.5 99.0 9 9 : 9.2 9q.2 99.2 99.2 99.2 99.2 99.2

(.E 'L"I ".5 79.G 85.6 89.1 95.7 97.6 9.7 99.2 99.2 99.5 99.5 99.5 99.5 99.5 99.5 99.51'. 4 8:01 63.5 79.L 8S.6 89. 95.1 9b. ( 908. 99.6 5.S 99.7 90.7 99.7 99.7 99.7 99.7 997-

.t ' 1 6!..5 79.t, 85.6 89.7 9S.7 9F. 1 98 .L 99.S 97.C 09.7 90.9 99.8 99.9 99.9 99.9 99.9A. 7L.1 6. S 9j 85.6 89.1 95.7 91!0 88.9 99.5 9s.5 9.9 d 99.0 99.9 10.0 1 000 00.0 100.0 -

I5 1.3 63.- 79.0 85£. 19.7 9%.7 OP.C 9S.9 09.5 99.5 R9P 90 .0 99.9 100.0 IcO.O 100.0 100.0

10 I63.S 79.0 85.6 89.71 95.7 061.0 911.9 99.6b 90.5 09.9 99.0 99.9 1011.o llo.0 100.0 100.0

TOTAL hum r1 o.0 sr$VA/iOns 931 I..L

I 6

F

.LV3AL CL!PAT(LOGY IFANCH PkCETrAOA 4 fkfOUENCY OF OCCU6VENCE OF CEILING VFRSUS VISIBILITYJSAFETAC FROM IIOURLY nBSERVAI3ON.S

,W.14 *IATI-ERl SRVICE/MAC

A ATI r( INL ''ER: 1757t7 STATIVN NAME: NIAGAFA FALLS |AP :Y PERIO0 OF RECORD: 77-86MONI-: AUG OURSILS7I: 2100-2300

V IEILIS:, VISIILITY IN SIAIU T ,ILESLL. I LE Gr GF GE GE GE GE Gr SE GE rE GE GE GE GE GE

FEET I I- 5 4 3 2 1 2 2 1 112 1 l14 1 3/4 5/6 112 S/16 1/1 0..............................................................................................................................................

jO CLU I ,-.2 49.8 51.2 52.9 54.1 1,.7 55.3 55.5 55.6 55.6 55.7 55.7 s55 8 55.8 55.8 55.8

AC 2¢l1 96., p3.5 56.3 S8,7 tP.O C 16 61.3 61.5 61.6 61.6 61.7 61.7 61.8 61.8 61.8 61.8.I£ leC:I 96.r, '3.5 56.3 58.7 63.1 6C.6 61.4 61.6 61.7 61.7 61.8 61.8 61.9 61.9 61.9 61.9.1 rL 4,.0 -13.7 56.5 t8.8 61.2 CL.9 b1.5 61.7 61.8 61.8 61.9 61.9 62.0 62.0 b2.0 62.0l. 1 . C1 4'. 1 19.2 57.1 59.5 60.

9 L1.5 672. 62.4 62.5 62.5 6?.6 62.6 62-7 62.7 67.7 62.7

LE 120 l 9-.7 rh. 59.1 61.i 63.5 69.2 69. 65.1 65.2 65.2 6S.3 65.3 65.4 65.4 65.9 65,4

I .CrI I . (-.6 64.,. 67.1 69.9 C9.6 70.9 70.6 70.8 70.8 7'.9 70.9 71.0 71.0 71.0 71.0tE 90.01 , 62.8 b61 69.2 71.1 71.9 72.6 72.6 72. 9 7. 730 73.0 73.1 73.1 731 73.1-E 3r. 4. (4.1 682 71.5 73.3 742 79.9 75.1 75.2 75.2 75.3 75,3 75.9 75.9 75.9 75.4, 7J

1 D . 6 69.F 72.3 79.1 75.1 75.7 75.9 76.C 76.b 76.1 76.1 76.2 76. 2 76.2 76.2

A E L31 57.1 7..1 70.5 79.1 76.3 77.5 78.. 78.4 78.5 78.5 75.6 78.6 78.7 78.7 78.7 78.7

uE SVI !-.I t9.5 73.: 76.6 79.5 0L.6 81.7 61.5 61.6 91.6 81.7 81.7 81.8 A1.8 81.8 81.8, 1 'cc I E7.! 72.3 76.1 8C.3 6!.2 -4.8 85.6 85.8 86.0 86.1 86.2 86.2 86.3 86.3 86.3 86.3E 4' 1 .? 7!.2 77.1 91.3 89.4 . 0 87.0 P7.2 87.4 97.5 87.6 87.6 87.7 87.7 87.7 07.7,f E2.

4 7!.7 79,7 F4.G 87.1 t8.7 89.7 89.9 90.1 90.2 9r,.3 90.3 90.9 90.9 90.1 90.9

S 1. ' 7..' 7. 81.5 F6 J 89.5 61.1 92.C 92.3 92.5 92.6 92.7 92.7 92.8 92.8 92.8 92.8

F. LU 6I.f *. 82.2 P6. 9".2 91.8 93.0 93.2 93.9 93.s 9T.7 93.7 93.8 93.8 93.8 93.811 4%,! 78.7 *3.0 98.A 91.9 7. 3 99.9 94.6 99.8 99.9 9S.1 95.1 95.2 95.2 95.2 95.20 1 I.3 7-. . 8!.j Pk,9 91.8 13.94 94.A 95.1 95.3 95.4 9 .5 95.5 95.6 95.6 95.6 95.61 1 ' C) (5.7 79.7 89.Z 89. 97.6 69.2 95.1 96.L 96.2 96.3 96.5 96.5 96.6 96.6 96.6 96.6A 1'(31 C,.? 79.9 89.7 99.8 93.9 65.1 96.E 97.c 97.2 97.3 97.9 97.9 97.5 97.s 97.5 97.5

A ir 90i 65.7 qc.3 a5.2 C. 99.2 95.6 97.5 97.8 98.1 96.2 9R.3 98.3 98. 98.8 96.9 98.9L

. ' IJI f:. r 2,5 85.9 90.8 99.5 98.2 99.0 98.3 98.5 98.6 98.7 98.7 98.8 98.8 98.8 98.8

LF 1 6, . *,b. 855 sc.9 9.6 6. 3 99 .1 98.9 So.6 68.7 9P.8 98.8 98.9 98.9 90.9 98.9.r 4' '1.L 85.9 Q12 95.1 b.8 9p.5 98.8 99.3 99.1 90.2 99.2 99.9 99.9 99.9 99.8C (6.3 P1.1 85.b 91.2 95.1 91.a 9p.s 98.8 99.0 99.1 9.2 99.2 99.8 99.9 99.9 99.91* E ro| (6.3 n1.0 85.9 91,2 95.1 ';6.8 98.5 q8 . a 99.0 99.1 99.2 99.9 99.9 99.9 99.81

E. 6..r t,..! 1.. L &6U ;1.9 95.3 7.C 99.? 99.C 99.2 09.4 90.5 99.5 99,6 99.6 99.6 99.6;E LOI 66.3 P1.L 86. , 81.,. ,5.3 '7. 98.7 99. C 99.9 Q9.5 9q.6 99.6 99.7 99.7 99.1 99.7E L " C6.3 I kl 86.C Q1. 95.3 17.0 96.7 99.C 99.9 99.8 99.9 99.9 100.0 10. 0 100.0 1000 ,

E L 1 66.3 -I.L 86. "1.4 95.3 q7.( 9C.7 09.L 99. 99 6 99.9 99.9 100.0 IOG.0 100.0 100.0

f,F III t6. y 93.0 86.11 1.f 95.3 17. c 95.7 99.c 99.9 99.A 99.9 99.9 300.0 100.0 100.0 100.0

10AL NtPEP OF UVS[PVATIC!4: 930

LL

* uLO3AL CLIMATOLOGY 'RANCH PENCLt:IAGE FREQUENCY OF OCCUvE9CL OF CEILING VERSUS VISIBILITY5AFE1At FROM HOURLY ObSERVATIONS

A.1 6EATHFR SERVICE/144C

STATION NLPREP: 7252b7 STATION NAME: JIAGARA FALLS IAP NY PERIOD OF RECORD: 77-86MONT,: AUG 'OURSILST): ALL

' L I1 P4, VISIPILITY IN STATUTF MILESI-'. I 5E GF G

E GE GE GE GE GE GE GE GE GE GE GE GE GE

FEET I IP b 4 3 2 1/2 2 1 l12 1 1/4 2 1/4 5/A 112 Si16 1/4 0

f.O CEIL I 35.7 41.8 44.1 45.6 46.b 47.3 47.6 47. 1 47.R 47.9 4q.0 48.0 48.0 48.0 48.1 48.1

LE 2rCCl 3.T 46.6 49.3 "1.E 52.5 53.c 53.6 53.6 53.8 54.0 54.2 59,1 54.1 54.2 54.2 54.2.E 18'ICrf 39.6 46.7 49.4 1. ! 2. 7 3. 4 53.8 53.9 54.0 94.1 54.2 54.2 54.2 4.3 54.3 54.4f E 16"Lr 39.6 46.8 49.4 51.2 52.e 53.5 57. 54.C 54.1 14.2 54.3 54.3 54.3 54.4 54.4 54.4

LE 14'r 4j. ! 47.7 50.4 52.3 53.9 -4.b 55, 5*5,2 55.2 S5.4 5l.5 55.5 55.5 55.6 55.6 55.6

.C 12oCi 41. 7 49. 52.5 54.1 56.5 57.2 57.7 57.8 57.9 98.I 5.2 58.2 58.2 58.2 58.3 58.3

[F I Jt Lr 44.4 s3.z 56.5 e8.6 61.1 62. U 62.s 62.1 62.8 63., 63.1 63.1 63.1 63.1 63.2 63.2E 9 J,! 4!.7 '4.4 57,8 6.3 62.7 (3.7 64.3 64.5 64.6 64.8 64.9 64.9 64.9 64.9 65.0 65.0GE 8',X 47.r E 6.e 60.4 63.2 65.9 66.i 67.

6 67.8 67.9 68.1 6.1 68.2 68.2 68.2 68.3 68.3

(,E 7VkI '7. 97.6 61.6 64.b 67.3 6b.4 69.1 69.4 69.4 69.6 60.7 69.7 69.8 69.8 69.9 69.9' £ C(CD 141. 99.2 62.9 66.0 68.9 70.1 70.8 71. Q 71.1 71.3 71.4 71.4 71.5 71.5 71.5 75.6

uE 5^GGr I91. 82.c 66.0 69.2 72.4 73.6 74.4 74.6 74.7 74.9 75.0 75.0 75.1 75.2 75.1 75.2.£ 4 ' f; I ',.2 64.u 68.3 71.8 75. 76.5 77.3 77.6 77.8 78.C 1.2 78 1 78.1 78.2 7.2 78.2:9 40Z1 53.5 65.7 !.2 73.9 77.4 16.0 79.9 0,2 do.4 R0.6 81.7 80.7 80.7 80.8 80.8 80.8

SE 3301 E5.2 6R8. 72.6 76.5 83.2 -1.9 62.9 43.2 83.3 93.6 83.7 83.7 83.7 83.8 83.8 83.8A, 3 "! I 5C.9 73.3 75.3 79.5 83.5 P5.3 86.3 86.6 86.8 R7.0 87.1 87.2 87.2 07.2 87.3 p7.3

IF l5'' ! 75 71.b 6 . 82.1 65.2 67.1 8P.2 88.5 A89 .8 9.' 89:1 89.1 89.1 89.2 89.2 89.2-,E 2-1 50.4 7Zc 78.4 83.5 87.4 89. 97.8 92.3 92.5 9 19 919 91.9 92.0 92.0 92.06C IrL IL.7 73.3 7P8. 83.7 88.s 97.2 91.4 91.9 92.1 '2-4 92.5 92.5 92.6 92.6 92.7 92.7

S ' 1 : £. 3 74.4 60.1 85.3 89.8 92.3 93.7 94.2 94.4 q,:7 94. 94.8 94.8 949 94.9 94.9.E 1 ; L 'I 59.4 74. 80.6 06oU 90.6 93.2 94.6 95.1 9S.4 9.7 9'08 95.8 45.8 85.9 95.9 95.9

6 E If C I S9. 6 75.2 81.3 96.7 91.S 94.1 95.7 96.3 96.5 96.9 97.0 97.0 97.0 97.0 971 97.1,E 9;i :I9. 7 75.3 1.4 86.9 91.7 94.3 45.' 96.5 96.7 97.1 97.2 97.2 97.2 97.3 97.3 97.30, F CC I9.7 75.4 81.5 P7.

0 92.9 94.6 96 .7 96.d 97.1 97.4 97.5 97.5 97.6 97.6 97.7 97.7

A E 7

Icrl S9.8 75.5 81.6 87.2 92.1 4.9 96.E 97.2 97.5 97.6 97.9 97.9 99.go 90.0 98.1 98.1uIE ,."I - 9.8 ' 5.6 8.7 87.4 92.3 95.1 96.7 97q4 97.7 Q0.c 901. 98.1 98.2 98.2 98.3 980.3

Ie 5L.J 5.8 75.6 62.9 P7.6 92.5 95.3 9

7.C 97.7 98.0 n9.4 99.5 98.5 98.5 08.6 90.7 98.7t.E Lc I 67.8 75.6 81.9 87.6 92.7 91.5 97.2 98.1 8. 4 98.7 94,9 98.9 98.9 99.0 99.1 99.1(.E !CI 5,.P 7S.6 1.9 57.1 92.7 95.5 97.3 98.2 96.6 8.9 90,1 99.1 99.? 09.2 99.3 99.9.E 7611 5 9.0 75.6 81.9 P7.6 92.7 95.6 97.4 Q 4 98.8 99.2 99,4 99.4 99.5 V9,5 99.6 99.71,F. 1 r 59.4 75.6 a Is 87.6 97.7 96.6 97.4 QR,4 98. 99,3 99.5 99.5 99.6 99.7 99.8 99.9

E I1 5. 75.6 81.9 '7.6 92.7 95.6 97.4 98.4 98.8 99.3 99.5 99.5 99.6 -9.7 99.8 200,0

IOYAL KU[PLJ OF GPSENVAT2OfIS: 7440

LLOBAL CLIMATOLOGY :RANCH P[kCLtJTAGL FkEGUE9JCY (F OCCIPflPENCE OF CEILING V8RSUS VISIBILITYUS AF 7LFROM #-OURLY OUsL.ITVPIONS

AIR CrATHEZ SERVICEIHAC

STATION 9UMER: 7-5217 STAITION NAML: 42AAPA FALLS 1AP NY P[02O0 Of RECORD: 77-86M0NTI-: SEP POURSILS|I: OO00-020

CE ILIpS VISIPILIT IN STATUTE MILES T;I. I -. GE GE GE GE v GE G GE GE GE GE GE GE GE GE

FElT Ic b 4 9 3 2 112 2 1 1/2 1 1/4 1 7/9 518 1/2 5/16 19 0

%0 CElL 1 41.4 47.i 9A.9 49.3 99.8 5G. C 50.8 53. 9 60o. 9 90.9 5(1.9 so, 0..0.95. 51 .3

ZCCLGI A# 3.8A 5.3 s2.r S2. 5!.1 53.9 54.3 54.4 54.4 S . S4.4 59. 54.9 54.4 59.7 55.0A. 1 93. P U0.3 52.0 52.9 53.1 53.9 54.3 S4.4 9.9 5499.9 59.9 54.4 5-9* 54.9 59.7 55.0UE 16

7C3l 1 43.P 9c.5 52.C S2.4 5!.2 53.9 54 .3 5q. 54.4 p9.9 59.9 59.4 59.9 59.9 54.7 55.0

UIE 14-C01 49.1 '11.? 52.3 52.8 53.4 5. 2 59.7 98 54.8 9.8 59.8 59.8 59.8 S.8 55.0 55.3UE 12-o

1 44.9 !1.6 53.2 53.7 59.3 55. 1 S9. 55.7 5S.7 55.7 55.7 55.7 55.7 95.7 55.9 56.2

A. ICC] 47.4 i4. 56.1 56.7 57.3 58.1 58.6 58.7 58.7 58.7 5A. 58.7 8.7 98.7 58.9 59.2rE 9-I O 9a.8 '6.C 57.7 !8.Z 58.9 59.7 6r.1 63.2 60.2 60.2 63.2 60.2 61.2 60.2 60.9 60.8UE Er'1,|3 ,0.1 97.7 59.9 60.1 60.7 61.9 61.9 62.6 62.C 62.U 62.C 62.0 6Z.0 62.0 62.2 62.6:,E 7-C1 51.9 9.94 61.2 61.6 62.9 (], 2 63.8 63.9 63.9 63.9 61.9 63.9 63.9 63.9 69.1 69. 94o, 6CoO1 52." (Z.4 62.2 62.8 63.6 69.6 65.1 65.2 65. 2 65.2 65.2 65.2 65.2 65.2 65.9 65.8

.*E rC02 S5.1 2.8 69.8 6S. 66.2 67.2 67.8 67.9 67.9 68.0 68.0 68.0 68.0 68.0 68.2 68.6fr 4SLI 56.7 65.3 67., 6b.2 69.2 70.2 70.8 70.9 7j.9 71.0 71.0 71.c1 71.0 71.0 71.2 71.6

SE 91c10 Se.n 67.3 69.6 70.3 7 1. 12.9 73.0 73.1 73.1 73.2 73.2 73.2 73.2 73.2 73.9 73.8A. 39-CoJ 6P 71.3 73.7 79.9 75.7 76.8 77.3 77.9 77.9 77.6 77.6 77.6 77.6 77.6 7.8 78.1b. 3C C 63. 75.9 1R. 90.2 81.9 3.2 83.8 93.9 63.9 P9.G 89.0 89.0 89.0 P9.0 89.2 89.6

.E 279It1 1 ?67 80.7 82.2 81.9 85.2 85.8 85.9 85.9 86.0 86.0 86.0 86.0 86.0 86.2 86.6SE ?'OII 61.l 79 83.2 85.0 86.8 18.2 88.8 89.0 89.0 89.1 89.1 89.1 89.1 89.1 89.3 89.7GE S 1P,1 69.! 79.9 83.7 -5.9 87.2 8.7 89.2 19. 89.9 'S.6 89.6 89.6 89.6 09.6 89.8 90.1A[ IVCOI 9.8 0.3 65.2 8T1.5 86.9 96.7 91.3 91.6 91.6 91.7 91.7 91.7 91.7 91.7 91.9 92.2(E 1:Lot 69.2 P0.9 85.9 87.8 89.8 91.8 92.9 92.7 92.7 92.8 92.9 92.8 92.8 92.8 93.0 93.3

I'. I'101 t6.9 '1.1 86.2 98.1 9.? ,2.3 9!.1 93.9 93.6 93.7 43.7 93.7 93.7 93.7 93.9 99.2,;E 9931 66.7 91.3 86.9 98.3 90.6 172.6 93.3 93.1 93.8 93.9 9v.9 93.9 93.9 93.9 99.2 991.9L1 "CC 6.9 P. 1.6 86.0 88.7 9.9 2.9 97.7 94. C 94. 99.2 96.2 94.2 99.2 99.2 99.9 99.8',F 711" L 7.*C -1.9 87.1 89.c 91.3 q3.3 99.2 98.6 99.7 99.8 99.6 99.8 99.6 99.8 95.0 95.3LE f, |1 67 . '11.9 87.2 89.6 92.1 99.3 95.2 96.0 96.1 96.2 96.2 96.2 96.2 96.2 96.9 96.8

i.8 'L1I 67.0 81.9 87.3 90.1 92.8 s. 0 95.9 96.7 96.8 96.9 9 .9 96.9 96.9 96.9 97.1 97.9SE 9C| 67.1: 2.0 87.9 90.2 92.9 b. 2 96.1 97.C 97.1 07.Z 97.2 97.2 97.2 97.2 97. 97.8r.E I.'I 67.C :2., 87.9 90.2 92.9 95.2 96.1 91.6 97.8 ?7.9 91.1 98.1 98.1 98.1 98.9 98.8'I ,E 67.0 -Zcr 87.9 90. 9.9 95.2 96.2 97.8 98.0 98.1 91.4 98.9 98.9 98.9 9P.8 99.1(1E 1L1 67.0 . 2.c1 87.9 90-e 92.9 L.2 96.2 97.8 98.0 98.1 98.9 98.9 98.9 98.7 99.1 99.8

A -i l7.r -2.L 87.9 00.2 92.9 '5. 2 96.2 97. 98.c 98.1 98.9 98.9 98.9 98.8 99.2 IOG.0*.. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . ..0. . .. . . . . . . . . . . . . . . . .....0 * * .0.. . 0

TOTAL NUMPI" Of O"SERVIIONS: 960

--.- ---- ------- --.. . .... -

... . . .. . . ..

GLZIAL CLItATOLOGY BRANC- PERCENTAGE rREQUENCY OF OCCUPPENCE OF CEILING VrRSUS VISIBILITYLsAF IAC FROM HOURLY OBSERVATIONS

AIR 6rAT-ER SERVICE/AC

STATION NUPRER: 7:5Z27 STATICN NAME: qIAGAkA FALLS I AP NY PERIOD OF RECORO: 77-8( t.MONTH: SEP HOURS(LSII: 0100.OSoO

GE ILI%6 VISIPILITY IN STATUTE MILES

1. I GE G- GE GE SE GE GE G GE GE rE GE GE GE GEFEET I In 4 3 2 112 2 1 112 1 1/4 1 5/8 I" / 16 141 0

rJO CEIL 1 36.8 '4.3 46.4 47.U 47.6 48.4 4R.9 49. 43.9 48.9 4q.9 48.9 48.9 48.9 49.1 49.1

LF G: l 39.7 47.9 50.C 60. 51.3 12.Z 52.7 66.,7b6.7 62. 66.8 66.8 6 2. 7 52. 6.9 52.9

LE 18rOlI 39.3 7 r7.9 5. 6.0 £8~ 5.1 52.1 69.7 S2.C 7 . 7027.1 2 70S.1 5270. 270 10.9 12.3

E 460co 39.7 47.9 6c.0 60.6 51.3 72.2 57.7 52.7 52.7 52.7 57.7 52.7 72.? 72.7 52.9 52.9

30E 1! 1 l4.7 64.2 50.3 12.9 71.7 5:.6 56.6 53.C 5.C 73.0 53.0 53.c 3.0 53.0 76.2 53.2

c I o 6.9 1 2.08 5.3 18.6 52.3 5I.2 8.7 53.7 5.7 53.6 8!.3 538 53.8 53.0 5Z.0 82.0

(,E 10( O 4.7 -11. 532 3 592 55.D 5.9 56.3 563 5.3 56. 84.0 864 64 464 56.7 5.7GE 9rcl 4 !. '2. E2 55.0 56.1 . 57. 9 67.2 3 8.9 58. 8.1 S, 84 1 .# 88.1 58. s8.3GE 3'I 614.7 7S.9 56.2 53.4 85.7 S6.9 89.7 59.7 59.7 59.8 59.9 $9.8 598 S9.8 8.0 600

: 6 50 79 : 6 1 . 8,7 . 680. A 6 0:.,P 69 . 9 6 31 : 1 0 6 1 . 0 6 1 . 0 6 1 . 0 6 91 2 6 1 2GE 1I.0I 1.9 6 8Tb 6 .1 6 8.3 62.2 1 93.2 9 26 3 7 6 9.7 6 9. 92.38 6 63 8 63.8 69 9Z

E 5c C6 .7 7o.2 82.7 691 651 6 66.6 66.7 92.7 66.L 668 668 668 66.8 670 67.0[ L .3 (.2.9 62.4 773U 68. 698.1 8997 70.1. 79,24 70 1 7n.1 9. 70.1 9..7 70.3 . °3

*.E 70 536.1 7.4 4 67.0 68.8 ?.0 91.9 71.5 91.9 7.9 72.0 7.20 4.2 72.0 72.0 72.2 72.2*,E 3$ - 65.7 67. 7.2 72.6 73.9 9.2 7.6 759 74.9 76. 76.0 96.0 76.0 96.0 76.2 6.2

E 3CU 57.9 20 7 7.6 2 8 c 1.1 92.. 82. 14.7 86.2 96.3 873 92.3 6.3 92.3 92.6 826

GE 4r. 5.2 7q . 84.4 7992 61.3 9,4 . 8 96. . 3.9 4 *7c 8 91. 2. 0 91.7 0 81. 2 8 912GE 2' 1. C, 75.2 79.6 8l2.6 8SC F6.2 67-1 87.9 bsC Pa, 8. , I 8,a .1 63,1 88.1 68.3 8G,3

GE 11 -1 61.°7 75.9 8r.2 F3.4 85,7 86.9 87.9 a8s. B88,7 FIR,. 8 ,8 88.8 88.8 te . 6 9.0 69.0

GE I !60 61.2 77.6 82.4 88. 9 1.8 9 9b 96.4 97.8 90.9 97.C 97.8 91.0 91.0 91. 912 91.E[ I.-C(7 61. 17.8 82.4 96.0 88.4 09.8 93.9 91. 7 91.8 91.9 91.9 91,.9 91.9 91°9 92.1 92.1

"C 7l1 62.9 77.8 81.6 P6.1 98.7 14.1 91.2 92.1 92. 923 97.3 92.3 92.3 92.3 92.6 92.6GE ncrl 62. r 78.2 83.3 96.9 89.6 11.0 92.1 93. G 93.! 93.2 9!.? 93.2 93.2 Q3,2 93.% 95,%

A ( C"I 62.1 7b6,3 81.4 R7,1 09,e 91.3 92.4 93.4 93.6 93.7 91.7 93.7 95.7 9307 93.9 93.9

uE ?CC 62.1 78.4 83.9 P7,6 90.3 91.9 93 ., 94.c 99.1 941.2 94.2 99.2 914.2 9q,2 94.4 94.4,E b~ 6 1 78.4 83.9 a7°6 90.7 2o 2 93,3 94.q 99V46 94.e7 94.8 914.8 94.8 94.8 95.0 9S,0

,E 'LGl 62.1 78.6 84.2 go.? 9 2. 93-6 0q.7 96.u 96.2 96.3 96.6 96.6 96.6 96.6 96.41 96.0GE It CO 62.2 78.8 84.4 pfi.9 92.4q . 2q~ 95.3 96,7 9b-q 97.0 #7.2 97.2 97.7 97,2 97,61 91.%

GE Z | 62.2 78.6 84.4 88.9 92.°q 99.3 95.4 97.C 91.3 97.6 97.8 97"8 97.8 97°8 90.0 96.0l,E -L 62.,! 78.9 84.6 P9.0 92.6 q4. 9".6 97.6 97,9 98.1 96.1 98°$ 98.3 Q6.3 98,6 99.4

,E 1rl 67.3 78.9 84.6 q9.0 92.6 q4.4 9S.6 97.7 9d.fl 98.2 94.4 98.4 98.7 96.8 99.0 99.4

GE e 82.3 78.9 84.6 99.0 92.6 94.4 95.6 97.1 98.0 QP.2 9R.4 98.4 98.7 98.8 99.0 100.0

............................................................................................................................................

IOTAL NUMBER OF ONSERVATIOtS: 9L(

] CL

0L2(AL CL1IPA3OL0(. PRAIJCH 6(606661907 F.E(.UENCY Of OCCURPENCE OF CEILING, VF8105 VISIBILITYLSA I fA t 7608 F01909 OL-SER981I66AIR 67816-ER SERVICE/MAC

STATI0N NU14'LP: 7287 $TAT 066 NAME: NIAGARA FALLS TAP NY PERIOD OF RECORD: 11-86PnNT16: SEP NOU8SILSI C60OsuC

I N 7 a 16c G E GE GE U. S. Gr GE GE GE G6 GE GE GE G EroLL I ic C 5 4 3 21,2 2/ 1 112 1 1/9 1 1, 5/6 112 11/16 119 0...........................................................................................................................................

1.0 CEIL. I .; 76.7 3 36.6 %L.-2 41. 9'* %!'I3.R 99. 3 494.9 9 4 9-4.b 11.7 4%9.7 #44. 7 99.1 44.8 95.2

A 20G01 !7.' '9. 3 91.6 43.6 465.1 61. 1 47.8 46. 7 919j.9 a 98.9 40.1 49.1 #49. 1 99.1 49.2 49.7c l6"Occ j2. r "1. 4 1.;? 93.9 45.2 667. 2 47.9 98 . t 48a. 9 19.~0 99.7 q9 .2 49.2 99.2 99.3 49.8

I.f :t!Co 1 !2.1 1 9.6 92.0 -4 . U 665.3 141.3 49 . ";98.9 49.c 99.1 49.3 '49.3 '69 .3 49. 49.4t 99U~ 14' .AI1 32.91 1- C.c 42.6 966.6 45.9 '67.9 49.f. 49.4 '66.6 49.7 41Q.9 99.9 99.9 99.9 50.0 so .1ufI: -,'-J !3.L 41.3 6414.11 46.1 467.4 4S, 4 5 3.. 51.C 51.1 51., 5 1 .4 51 .9 51 .4 S1.4 51.6 52.0

00 720Ln 39. P 43.1 46.., 98.d 49.1 51.1 52 S.3 53.2 53. 3 53.q $'.? S3.7 S3.7 S3.1 53.8 54.21,F 9r2c 1 3,.2 494.1 47.2 499.4i 57.51 13.0 S3.7 56is. 6 514.7 -14.8 SS . a 55.0 5S.0 sS. 55.1 S5.6L, 1-8r ,,C 1 35,.% 45.3 48.3 50.9 521.4 59.6 b 55.2 56. 1 56.2 %66.3 56.6 56.6 56.6 56.6 56.7 57.1(A I'LV' 136. 7 46.3 50.0 52.7 54. 1 56.40 57.1 54.C 58.1 F 6. 2 54.4 58.4 58.9 58.4 58.6 59.0,E (,' C' 31.8 41.6 51 .9 54.1 56.7 !8. 9 59.6 60.40 63.6 60.7 60.9 60.9 60.9 60.9 61.0 6 1 .4

6 IE sriaic'i. 6. 1i. 1 55.1 58.3 667.6 62.8 6 3.9 69.3 b4.9 64.6 69i. 8 691.8 69.8 69.8 69.9 65.3-,

4SC71 4 2.f n 62. 6 56.9 60.2 62.8 (5.1I 65.' 66.7 66.8 67.1 67.3 67.3 67.3 E7.3 67.91 61.9

E. %-C9 1 41.2 59.4 s8.t 62.1 64.9 67. 1 676.c 68.9 69.0 69.3 69.6 69.6 69.6 f9.6 69.1 70.1,Z' 31 ' 7I 9r.4 57.6 62.3 66.9 69.3 71.8 72-.71 73.71 13.8 79.2 719.4 79.9 74.41 79.9 791.6 75.0'f~ Srtrl 97.0 59.6 641.1 69.41 72.3 15. 1 76.1 71 .1 71.2 77.7 77.9 ?17.9 11.9 ??.9 1P.0 78.91

1,1 2' LrI 44.7 651.1 67.*1 72. 1 75.2 7. 1 19.3 90.3 80.91 -1.01 61.2 81.2 81.2 91.2 61,3 81.I*.E Z- 201 99.1 57 .1 4 U 7. 9 79.1 R1.0 87.6 83.8 83.9 04.4 8A. 7 94.7 84.7 04 . 64.0 85.2

tot I eo I s'.! 64e.3 10.1 7s .6 74.9 81. 9 83.4 94.7 89.8 R5.9 8'.? 85.1 85.7 85.7 85.8 86.2.E0 U I70 51. 65.6 71.4 16.9 80.6 J46. L, a ,.7 41.0 81.1 87.8 881.0 88.0 68.0 R8.0 88.1 86.60:! 1C"j S1.2 66.4 711.4 78.1 62.0 "5.6 81.? 88.6 68.8 89.4 80.7 89.7 89.7 49.1 89.8 90.2

UO Y' 01 I6.( f6.9 73.." 76 .9 6..9 t6.4I 88 .3 99.8p 90.0 9(3.7 9n.9 90.9 90.9 90.9 91.0 91.4-,E *LZI 51.0. 0;6.51 ?3.1 79. U 63.0 '1. 7 88.7 9C.1 9L.3 013 91.2 91.2 91.2 91.2 91.3 9 1.(,E V L'! 51. 7 67.G 73.9 79.4 61.6 a?.9A 89.9 91.0 91.? 92.0 94'. . 92.2 92.2 92.2 92.3 92.8"r 7U:1 1 01.7 67.1 71.6 79.7 8 3.5q A7. 9 9c.1 91.e 91.r 9Z.8 9 7.0 93.0 93.c 03.0 93.1 93.61,f t Ur1 -1.7 61.2 7 3.7 79.8 84.41 '4. 7 91 ." 92. A 93.0 '3.8 y".0 94.0 99 . ! 994.0 99.1 99.6

00 't-1 51.7 -1.2 7 3.p P '. 6 e65 . 9L. 3 92.9 94.9 95.2 46.0 911.4 96.40 96.41 96.6 96.7 97.1(.E 14,;r 51t.7 67.2 13.8 ac .1 85.9 'L.6 663. '5. 3 9s.7 06.6 97.0 97.0 97.0 97.1 97.2 91.7,.r "c 51.7 67.2 7 3.8 pD. 8.0 50.1 93.9 95.6 96.r 9 7. 1..9.9'. 97.6 9..,0 7C.C 53.7 6 7.2 13.8 '0.6 66 .:. 9L. 93.7 95.6 96.4 17. 3 91.p 91.9 98.0 94.1 98.2 98.8

UE 3.1 5!.1 61.2 13. 80 K.8 86.0 'ZL. 8 93. 7 9S.5 96.9 Q1.3 97.9 98.1 96.3 98.71 98.9 99.9

f.7 I 50 67.2 13.p 977.8 86.n (,0.8 93.? 95.9 96.9 91. 3 97.9 98.1 98.3 98.1 98.9 106.0

T01AL %UPLE') OF 0'5%fkV61f06NS 430L

GL op0A t CLIP-4l1LOGY 968

dC6 P[RCEJIAE 1611,LEI1CV VF OCCL',vLt.CL OF Cf'ILIN. VERSUS VISIPI11I9'S MVAC FR0M 60U"1. .Sto V08 8110NSif11 .!AI#HFR SERVZCE#

MAC

.3811(6 hUMlLR: 7:52V, SIATION AME: NIAGARA FALLS lAP fY PEVIODOF oRECORD: 71-86MONTP1. SEP I-OURSILSII: 09G0-110C

..........................................................................................................................................CEII- 1311S 35P1L111 IN SIATUIt MILES

V. I 3 GE GE Gr GL1 GE GL GE GL GE S E GE GE GE GE GFEET I ir 6 3 6 3 z 1/2 z 1 L12 1 1/6 1 t/4 j/8 1/ JQ /16 11/6 0

i60 CrlL I31.9 ?7.9 63.2 611 4 2.; 4i. 3 47. 4 2.6 62.4 62.6 642.6 62.6 62.6 62.6 62.6 4Z.4

!2croD0 34. - 67.b 4,.9 664.2 65. 3 66.0 6l46.X 46.~ 1 6.1 66.1 66.1 66.1 66.1 4b. 1 66.1 46.1

~ttI B161t 34.r 63.6 12 .? 66.2 of . 3 ob. U 6.*0 66. 1 46.1 616.1 4.6.1 46.1 66.1 66.1 66.1 66.14, I L 7 U 14.0 n u;.P 6 2.9 664.2 6s.3j 46.1 66 .7 6b.1 66.1 66.1 66.3 616.1 66.1 6 .1 616.1 66.1,,( 1 -4: OL 35.1 41.8 66. 4 5.6 646.7 %7. 3 47.! 6 7.4 67.61 647.6 617.4 67.64 67.61 47.6 47.% 67 .66E 1' 5 6.60 63.6 4e6.9 67.64 46.6 66sj 61 .2 4?. 3 49.3 69.3 4c. 3 619.3 69.3 69.3 69.3 69.3

'. I 3CCCII V.6' 66.4. 69.7 51.2 62.3 53.2 C 63." 53.1 S3.1 $3.~ 1 S.i 1 53.1 63.1 53.1 63.1 53 .1,E 91 031 31. 40 66. 531.2 S2.9 56.0 1-.3 665.7 56.6 66.6 '6 56.8 56.8 69.8 51.6 66.6 516.64lW 8 C:: 66 C 2c 63.6 !5.3 56.6 1 7.1 b7.1 57.2 67.2 7 .2 67.2 S7.2 57.2 SI.z 57. Z 51.2 2!,F 7r ZC ~ 6. .9 S55.2 S.U 66Y.1 ' '.a 5p.9j a6. 66 5.9 56.9 54.9 66.9 66.9 56.9 66.9 66.9I." bLC 63 a 3. S 67.sy2 S9.6 bn.@ 631.6 61b.6 bj.6 63.6f 63.6 61.6 61.6 61.6 61.6 61.6 61.6

.0SG 's-61 5. 2. 61 6. 66. 65S C S.37 65:' :':0 65.0 65.:0 65.0 66.0 65.Ci.E ftS00 I 69 '7.C 61.3 03.9 61. 66.6 66.6 66.1 66.b7 f6.7 6.7 6.7 66.7 66.7 66.7 6.7bE 4'CCI 664." 1 r9. 3 63.2 66.6 67.7 f E. f 60.6 66.6 66.6 68.6 6P.6 66.6 65.6 66.6 68.6 66.6

r 3 ,V 1J 64.7 61.1 65.c 67.6 69.7 70.6 7.4 70.6 70.6 7C.6 70.6 70 .6 70.6 70.6 70.6 76.6* ,r 3UL 1 S2.6 66.L 69.6 12.6 76.6 76.7 1 7.7 75.6b 7S.9 75 .9 15. 71.9 75.9 7 6.9 75.9 7S. 5.9

UE 1'. C~ 1 $4.9 63.1 72.7 75.6 78.7 76. 7 19.6 79.9 60.C 60.C 6'.0 60.0 813.3 60.0 62.0 60.0LE i'Z Lc 6 6.6 70.* 75.61 16.7 61.7 p..9 83.3 93.6 63.6 63.7 63.7 63.7 63.7 A3.7 63.7 63 .7LE I 1'L 57.6 73. 7 76.b 79.9 62.6 F4,3 865.4F.6 86.6 %6.7 '6 .8 66 1.8 66 1.8 86 .8 66. 6.6 646.6j. V' CC I s". '6.1 796 04 92.7 86.0 .3 t7.14 6l7. 9 66.0 '8.1 66.2 66.2 66.2 e6.2 8.? 66.2Lr 12co 1 5 .9 7p5.6 61.2 664. 7 66.2 89. 7 90.1 97.2 90.3 10 .6i 9rl. 6 90.6 90.6 60.6 90.6 90.6

L L VC01 ('.1 76., 82.1 P1.6 8 9.6 1. 2 91.7 91.8 91.9 92.0 9'.1 92.1 92.3 92.1 ?- 92.3 z1f-.E Q L.,1 1.0. 3 ;6.1 821.7 86.6 90.4 92.1 92.6 93. C 93.1 q3.2 97.3 %3.3 93.3 93.3 63.3 93.3t,( f c'I 6r,.6 77.c v !.z 67.0 91.6 03. 1 96 .: 96. 3 96.61 96.6 96.7 96.7 964.7 qf4 .7 964.7 661.7uE 7Qv I 60.6 77.2 63.6 67.3 91.9 93.6 96.6 96.6 96.9 9DS.31 9S., 6 .Z 9S.2 61.2 65.2 9S.2LE Co CI 60.4 77.? 6A. ! 6 7.6 92.6 96. 1 95.r 96.3 95.6 95.7 95.6 96.6 95.6 91.6 9S.4 91.8

LE. I0 60. 7 11.6 63.9 66i. 1 603.6 %b. 6 56f.6 96.9 617.1 a?. 3 '7 97.6 97.6 67.6 97.64 97.614. 6o21 6V'.? 77.6 66..] 86.6 96.3 9b. 3 97.6 97.9 96.1 08.3 96 .6F 98.6 98.6 66.6 96.6 66.6

"6 !00 60.7 17.6 864j 86.7 96.6 96.7? 97.0 96. 3 66.6 98.6 99.0 99.0 99.0 69.0 99.0 99.0LE ^CCI f-L. 7 17.4. b6.0 66.7 96.6b (.a. 9.1 99.d 99.0 99.3 99.6 99.6 996 69.6 99.6 99.6CE I LC 6% ?7 77 .6 86.u 68 .7 961.6 96.6 96.1 96.8 99.r 99.6# 99.7 99.9 99.9 69.9 99.9 100.0

bE r c1 f3'.? 77.6 66.7 66.7 sit.(. 96.8 98.1 96.6b 99.0 99.61 99.7 99.9 99.6 69.9 99.9 100.0

10OTAL IIUNALI Of 01SEIV61106$. 9L0

(LG;AA CLIIOAVOLOI, 15891'I'ICLNYDGE rk('.UE9CV OF OCCL'RRENLGI.OF CEILING vERSLS VISISILITY.S * ILI C FROM HOUR LT u 05R8111095A[9 R a1I"[ R5ER IcElmO8C

7,181119 NUPPLP: 1,'5287 S TAT1C%. NAME: NIAGARA FALLS lAP NY PEDIOD Or RECORD: 71-86MONTH* SEP HOUPSILSTI: 1200-1400

rL 5 GE RI. GE GE GE GE GE 5 L GE SE G E GE GE GE 61FEC I I c 6 5 4 3 2 1/2 2 1 112 1 1/4 1 Tj% 5.8 1/2 '/16 1/9 0...............................................................................................................................................

4,0 CEIL I3.V' 17.2 3p.b !9.1 39.qg 39.1.7 39. 7 39.7 39. 1 39.7 39. 7 39.7 19.7 39.7 39.7

,F. 2 Cr L-, 33.t 41.3 942.9 43.6 4 1.9 49. 1 99.1 991.) 1 4.1 99F. 1 44.1 904.1 964.1 99.1 94.1 44.1ItE ICLcl 1 3.9 4,. 3 42.f 43.6, %3.9 44. 1 494.1 91. 1 '09.1 416.1 99 9.1 9-1 44. 1 94.1 490.1 99.1-,E i#bL) 1 3!.9 41. 3 42.b 93.6 93.9 44. 1 441.1 99. 1 '09.1 9&. 1 99.1 99.1 '#% .1 %'A.1 94.1 991.1i~r I arCC 1 3q.9 92.3 9 3. 99. 99 b 4.9 4S. 1 91.1 95. 1 95.1 95.1 49. 1 95.1 95.1 45.1 4.1 4 5.1

*GE Iz'cuI 35. 3 93.9 945.3 96.3 916.71 4b 9 6.9 96. 9.9 96.9 96.9 4(.9 46.9 46.9 96.9 46.9 96.9

A I COCC I j . - '7.0 99.Z 5, .2 so.(, 'u. a 5 1.1 50.9 5C.8 . SO. a 50.8 50.8 510.8 50.8 s0.$* GE 9rLC'I J7 I-c 97.8 50.0 S1.0 51.3 s 1.6 51.6 51.6 51.6 '-1 .6 S1.6 S1.6 51.6 C5.6 51.6 51.6*',E 8 ' La 1 ! )2 49-4' 51.7 52.7 5 3.0 S.3.2 53.2 53.2 53.2 113.2 5'.2 53.2 S3.2 53.2 53.2 53.2

LE 70'C1 41.9 S-1.2 53.4 594E6 55.0 ,5.2 5S.2 55.2 55.2 'S.2 55;.2 55.2 55.2 95.2 55.2 55.2GE L' en 41.E !2.90 59.7 55.9 56.9 su. 7 56.7 S6.7 56.7 56.7 56.7 56.7 S6.7 Sb.7 5 6.7 56.?

.E 51'C31 49 E5.0 5 7.3 S8.9 59.8 67. C 6'J. 1 60. 1 60.1 61.1 br. 1 60.1 61. 1 60.1 60.1 60.1* GE %1-23 '.. 7. 1 59.9 61.1 62.0 62.2 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3 62.3

AE 95(3 Lo17.9 C0.0 62.n. 69.3 65.2 65.9 65.7 65.17 6S.7 65.7 6S.7 65.7 65.7 6s.7 6S.? 6S.7LE 3' Lf) 5 1.41 69.3 67.2 69.9 70.6 7u.

9 71.? 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3 71.3

GE 37. L' 1 6.41 73.3 7 3.6 76.2 77.6 77.9 7@1. 3 78.4 78.9 78 .9 7?f.% 78.9 78." 78.9 70.4 78.9

AC Z' UOI t'.( 79.9 78.9 A1.6 82.9 e3. 2 83.8 93.9 63.9 $3.9 81.9 83.9 03.9 03.9 83.9 83.9 fuE 21001 t .. 9 77.7 82.1 84l.8a 86.6 87.2 88.0 88.2 88.2 to8.2 88.' 88.? 88.Z 88.2 88.2 88.2..E 11- ZC 6 '. 3 78.2 82.8 85.6 87.3 L.. 88.1 89C 9.0 P9.0 099.0 *'o 9.0 89.0 89.0 89.0 89.0GE 15un 1 69.9 11.73 86.1 89. 1 91.1 q). 9 92.7 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9 92.9*uE 12005 V.? ?2.3 S7.7 9C. ? 92.7 93.4 991. ! 99.6 994.6 0#9,6 99.6 9%9.6 991.6 9%.6 914.6 9%. b.

LE I C,31 1 6. 1 93.1 88.6 91.6 93.7 99.94 95 .3 99.6 95.6 95.6 91-.6 95.6 95.6 '5.6 95.6 95.6(A ,E L 5(.6. %b 93. 68.6A 91.8 93.9 $9. 7 95.c Q5.e 95.8 95.6b 9S.8 95.8 95.8 95.8 95.8 95.8

A f-1, t6.9 P3.1, 89.2 42 .2 94.41 15.2 96.2 90.4 96.4 96.91 96.4 96.91 96.9 96.9 96.91 96.9GE 7?Gal C6.7 ? '3.9 89.6 92.7 9's.9 95.7 96.7 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9 96.9

. CCI Lt..7 '3.9 89.8 03.U 95.6 96.3 97.3 97.6 97.6 ~76 97.8 97.6 97.6 97.6 97.6 97.6

~E .Lr 66. 7 0.c 90.2 93.7 96.3 17. 2 98.3 98.6 98.6 98.7 99.7 98.7 98.7 98.7? 98.7 98.7LE 41 L r 66.7 849. 1 90.3 91.)1 96.9 7. 9 99.1 99.3 99.31 99.4 99.94 99.46 99.9 99.9 99.91 99.9*.( 16n L6. 7 PA... 9fl1. 99.1 96.9 97. 9 99.9 99. 1 99.7 0%.@ 99.R 99.8 99.8 99.8 99.8 89.8GE ,:05 66.7 99.0 913.3 991.1 96.9 57.9 99.7 99.9 99.9 1!%0.C t0l.o iCa.O 100.0 1120.0 100.0 100.0I-E 1,CI 66.7 '9.c 9fl.3 '41.1 96.9 147.89 99.7 91.9 S09.9 1 no.C 100Go.0 1020.0 100.0 1I'0.0 100.0 100.0

A. t. 6. 7 84.C 9.1.3 94 96.9 .7, 9 99.7 99.9 949.9 IT0.c ICt 100.0 100.3 1100.0 100.0 100.0...............................................................................................................................................

T0TAL NI.'P1PFR Or 1(88811095: 9,t 'p

GLORAL CLIMAIOLOG- nRANCH PthCLNITAi FPI7UErCY OF OCCURPEKC OF CEILING VERSUS VISIBILITvUSAF IAC r ReOm HUqLY CSC. RVAloNSAI WEATEQ SRVI/CE/8C

T3I|ON LP LR: 7.57b7 STATICc NJME: *AGAt FALLS LTp P;Y PE0100 OF RECORD: 77-86ON9: SEP OURSiLSTI: 1SU0-1700

° E1IG 9151 'I"o ' '°goe m0 'I0°1LX 7 1'4 3189~01 ILS o ~oj 00''00 ''0 '0*

IN G GE CIE 5 or G GE GE GE GL GE r GE GE E E GEFEL i - S 4 3 2h 11 1 1/2 1 1/4 I 5/4 5/8 112 5/16 1i/ 0

NIO CEIL 1 -.4 39.9 41.3 43.1 43.3 43.6 43.6 43.7 43.7 43.7 43.7 43.7 43.7 13.7 43.7 43.7

I, r I p;.6 4, 46.3 48i 4q. 49.1 49 .1 49.2 49.2 49.2 49.21 49.2 49.2 49.2 49.2 49.2E. 14'S.CI 4'. 45.1 46.9 48.6 49.4 4%.1 47.7 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 89.8

1.7 1 4 4.4 41 . 49.1 49.9 c, 0 50.7 50. 1 5 o0.1 51.1 50.1 50.1 o0.1 50.1 50.14 l 11. 3 4.6 48.4 SO.4 51.1 -,1. 51. S 51.4 51.4 c1.4 51.4 51.4 51.4 .1.4 51.4 51.4

ur 17zrI 47.R 48.3 50.4 52.7 53.4 53.7 57.7 53.9 63.8 53.8 53.8 53.8 53.8 53.8 53.8 53.8

.r 10 IL01 45.7 42.3 54.6 56.9 57.7 57.9 57.9 S8.0 59.0 18.0 58.0 58.0 58.0 58.0 580.0 58.0r.E 91511 46.3 S3.1 55.3 S7.7 58.4 9.1 59.7 S9.1 59.8 56.8 5P.8 58.8 58.8 58.8 58.8 58.8..C 67(.'JI 4 4.( 6.e 59.1 61.3 62.4 bi.1 7 .7 b2.4 62'. 8 b2 .8 62. 6 2.8 62.8 62.5 b2.8 62 .8t*' 7riol 5r.2 57.7 60.1 62.8 63.1 64.0 64.7 L4.1 64.1 64.1 64.1 64.1 6%.1 64.1 64.1 64.1r.! 6rCi 51.3 18.9 6 1. 64.1 65.0 E,.4 65.4 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6 65.6

E Sr Ca 541.7 62.9 65.4 68.2 69.2 E9.1 69.7 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8 69.8'.E %tLI 16.9 66.0 69.6 71.3 72.4 7i. 9 72.Q 73.5 73.5 73.0 73.0 73.0 73.0 73.U 73.0 73.0.E 4C-21 .6 68.2 71.0 74.2 7s.3 75.9 75.9 76.5 76.0 76.0 76.n 76.0 76.0 76.0 76.0 76.0GE 3' LC1 61. 71.1 74.z 780.3 7.4 F5.1 80.1 80.2 80.2 90.2 6.2 80.2 80.2 80.2 80.2 80.2LE 35C 1 64.3 75.C 1.7 83.3 64.6 F5. 85. 85.3 65.3 85.3 89.3 85.3 85.3 95.3 85.3 85.3 L.

E 2SCr 1 (6.6 77.9 61.7 86.6 87.8 b6.4 88.6 68.7 88.7 88.7 8n.7 8O7 88.7 98.7 88.7 8.7I.E 20U'1I V(.3 00.4 84.6 P9.8 '11. 2 1.. 92..7 92.4 92.4 92 .4a 92.41 92-4 92.4 92.40 92.4 92.4

E: I P - 6R.7 a.09 85.. 90.2 91.7 92.4 92.7 92.9 92.9 92.9 92.0 92.9 92.9 92.9 92.9 92.9I.E 1 9.1 69.3 12.2 86.3 $1.8 93.3 q.1 94.3 91.6 94.6 94.6 94.6 04.6 94.6 94.6 94.6 94.6uE 17ur 1 67.A 83.0 87.3 9Z.8 96.3 q5.2 4. IS. 95.8 95.8 95a 95.8 95.9 95.8 95.8 95.8

uC ic571 69.8 P3.2 b7.6 93.u 94.7 1.7 96.0 96.Z 9b.2 06.2 96.2 96.2 96.2 96.2 96.2 96.2..E GLI t.9 A ;3.2 d7.6 93.0 94.7 95.7 96.1 96.2 96.2 06.2 9f.2 96.2 96.2 96.2 96.2 96.2GE R57 v).0 3.4 87.9 93.3 '5.0 9. 1 6.0 96.7 96.7 96.7

9 .7 96.7 96.7 96.7 96.7 96.7

SI Z 1. 7 7. C Ps.7 88.2 93.8 95.4 t 6.6 96.9 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3 97.3SE CLO 70. r s3.8 88.9 94.6 96.4 0.77 98.1 98.4 98.4 98.4 90.4 98.4 98.4 08.4 98.4 98. 4

E.E 'C31 70.0 Q3.9 89.3 95.1 97.1 ^.3 99.7 99.4 99.4 99.4 9 .6 99.6 99.6 49.6 99.6 99.6t. 4511 7n.1 4.1 89.4 95 .2 97.2 it.4 99.1 99.6 99.6 99.6 99.7 99.7 99.7 99.7 99.7 9907b 31 7,.1 P4. 89.4 9S.2 97.2 nt. 4 99.1 99.6 99.6 99.6 99.7 99.7 99.7 99.7 99.7 99.7('. 2ZoI 7a. I 4.C 89.4 95.2 97.2 18.4 90.1 99-6 99.7 99.7 91.8 99.8 99.8 99.8 99.8 99.8I E I 1 7C.1 '4.0 b9.4 95.2 97.. .4 99.1 90.6 99.7 99.9 100.0 100.0 100.0 100.0 100.0 100.0

LE II 77.1 '4.0 d9.4 95.2 97.2 6. 4 99.1 99.6 39.7 99.9 lo.0 IC0.0 10.0 100.0 100.0 100.0

TIAL NURLPOr 0 OnSERVAT|ONS: 9.0J L

1LORAL CLIr401OL06T RRA-:CH PERCLP!IAbf. r.EQUENCY OF OCCU'&"ENci Of CrzILI'. vr'SUS VISIOILITIVS:FET8C FROM HOURLY ONSLRV7IOS

A I h r vNER sERviCIE/AJ

5171108 tiM-LR: 71S'.7.8 108 *I NiAcARA FALLS I* AP NY PE-100 OF RECORD: 77-866061...: SEP I-OU'.SILSII: 1820-2000

LE IL ING vISIl'ILIT IN. STATUTE MILESIN 3. 5E GE 6E GE I.E Cl Gr ULt GE GE GE GE GiE GE GE

FEET I :" 6 6 3 i112 21 1 1., ; 1/6 1 3/6 5/8 112 5/16b 116 0

NO 5 ElI. I 39.f 664.1 I*5.7 65.9 % 1.3 67.6 67. 7 '.7.1 7 7.7 41.8 67.8 67.8 67.8 67.8 67.8 61.8

CE U~I 6'. '.6 '9.9 68..9 5?.6 '2.17 5?.9 52. 9 52.9 53.0 63 .0 53.0 53.0 S3.() 53.0 53.0.F l6CLfli 63.' 6 6.9 5~* L,.Ll 1.u !"..I 2. 53.0 53.6 563.0 C 5 3.21 53.3 1 3.1 %3. 1 53.2 1 3.1LE Itfli'0 I 76 61. 1 50.3 51.3 5-.0 r J. 1 $13. 3 53. 3 53.3 53.'. 51.'1 5 3 :6 5 3.'. 53. S S' 3.4LE 1'.r z, 4.c cj.i 62.0 C3.0 S4.7 b'.. 8 5.1- 55. U 5.0 55.1 55. 51 SS I 55.3 15.1 SS. ~S.1uE 1021 C14'6. 1 2.2 S3.6 5'..d 5b~t'6.6 se. 6 . 56.9 56.9 %1.1 57.1 57.*1 57.2 S7.1 57.1 51.1

j1 12'ccI 43.', !5.3 56.8 56.02 S9.7 59.8 63.0 6u.1 60.1 612.3 60.3 60.3 60.3 60.3 60.3 60.3E 9CL

8'I 5Ct.( C i.6 58.0 59.2 60.9 61.0 6 1 .2 61.3 61.3 61.6 61.6 61.'. 61.6 61.6 61.6 61.6

.6 Sccul I. I C13.6 61.9 63.2 bS.O 66. 1 65.3 66.6 65.6 66.17 6.1. 66. b.? 65 s.7 65.1 65 65.1t.E 7r1,cg 53.6 71.0 62.6 611.0 65.8 66. 1 66.! 66.6 66.6 66.8 66.8 66.6 66.6 66.8 66.8 66.8.. ( D.-oi S6.6 62.2 6 3.6 65.3 61.1 El. '1 67-7 67.9 61.9 68.1 bp.I 68.1 68.1 68.1 68.3 681.1

.E sre s 6?. 1 65.2 66.e 68.3 10.2 6..b 70.9 71. 1 11 .1 ?1.1 it. 7 1. 7 1.3 11.1 11.1 11.1*i.E '.- GIl S .? 61.1 69.3 71.0 13.0 13.3 73.8 74.C 16.0 76.2 76.2 76.2 ?%6.? 741.2 76.2 ?76.2

I.E %-~7 L 1t7.4 E9.9 11.8 13.41 15.6 15.9 76.3 76.6 76.7 16 .9 76.9 76.9 76 .9 16.9 76.9 76.9FIE 31-001 6 !.9 73.9 75.8 77.1 80.0 AC. -6 81.2 q1.6 82.6 41.6 83.8 81.8 81.8 61.8 82.8 81.86E. sroo 66.6 18.'. 812.6 82.6 85.2 8s.8 66.'. 26.1 86.8 A.7.0 67.0 87.0 81.0 87.0 81.0 87?.0

.8 V!0" 67.6 .0.'. 6.2.6 846 87.6 86. 1 88.8 89.. 8 9.1 89.3 89.3 89.3 89.3 89.3 $9.3 89.3LE. Z2 CC0 6-.3 A I.L j, 3'f f6. 1 69.6 '7P.'. 91 .2 31.64 31.6 31.8 91.8 91.8 91.6 91.6 91.8 91.8,[ 0I Fl6 i. 6 '2. 1 86.6 66.8 90.2 32. 1 S61.9 92. 1 92.2 92.61 9206 92.6 92.6 92.6 92.4 92.4.E I' ! L 63q.7 ? 2.46 8.0 87.3 90.9 93.8 92.6 92.8a 92.9 93.2 9'.1 93.1 93.1 93. 1 93.1 93.1X6 17011 61.9 92.9 85.6 88.2 92.8 9i.? 93.6 @3. 7 93.8 96 .0 94.0 96.0 96.0 96.0 96.0 9%.0

,E 1,)"r 0 6).6 0,31. 8 6.6 89.1 92.8 9!.8a 96.7 9S.C 95.1 QS5. 3 95.6 9S.6 95.6 95.6 95.61 95.6LiE 3:I69.6 F3.6 8 6.6 89.1 92.8 93.'. 961.7 95.C 95.1 9S.3 95.'. V5.6 95.6 95.6 96.6 95.4I.E l67.t q!.0. 86.64 89.1 97?.'- Q3.9 q -,.0 95. 3 95.6 96.7 96.8 95.8 9S.8 IS.& IS.* IS.*ItE 1LU1 69.6 81 .u 66.1 89.61 911.1 96. 3 95.8 96.1 96.2 p6.% "6.6 96.6 96.6 96.6 96.6 96.6GE fool fl.6 P%.C 86.6 89.6 93.64 96.8a 96.61 96.9 97.1 91.2 97.3 91.3 97.3 01.3 97.3 97.3

.0E '(' 64.6 86.3 67?.3 90.3 961.7 96.1 98.1 98.1 98.8 09.c 99.3 99.1 99.1 99.1 99.1 99.160 4 6&CCI 63.t 86.3 67?. 3 90.3 96.8 96.41 68.6 99.2 99.2 49.6 99.6 99.6 99.8 99.6 99.6 99.6CE! oIl 69.6 e6.3 87.3 91. 3 96.6 1.64 9q.4 99.1 'J9.2 99.61 94.' 99.6 99.6 '.9.6 99.6 99.6G.E 7Ca1 69.t 864.3 87.3 9.C.4 36.9 9(.b 9P.6 99.2 99.3 qq9.6 99.7 99.7 *9.7 %.9.7 99.1 99.1I.E 2001 E9.(. 86.s '7.3 9G.4' 96.9 16.6 96.6 79.2 99.3 99.6 90.6 99.9 200.0 1(0.0 200. 100.

uE C.0 1 6 .6 86.3 81.3 9C .'.I 1 6.9 'L.6 90.6. 99.2 96.3 99.6 99.8a 99.9 300.0 1(0.0 2GO0 100.0..............................................................................................................................................

TOTAL k06813 Or O-SfPVATI8.St 900

[-+U

LLCdAL CLIMAIOLOGY PWANC1- PELfCIFITAE FRLE6 UENCI OF OCCURQIICE OF CrILING 9FRSUS VI56LITY"S*AFLTAC F610 IOURL "dSLRVAjIckSO

AIR bf AI'lLR (RVICE/PAC

7ATIOpN MiatPEL: 7'92h7 STATION NAME: NIAGARA FALLS IAP NY FP-11O Or 2¢00: 77-196

ONITH: SIP 64URSILSTI: 2100-23U, ,

U ILI'. VISIBILITY IN 5TATUTE MILESIF. I CE 61 CE GE ( G[ G E G, G GE 1E GE GE G GE GE

FE(E I 1r b S i 2 Ili 2 1 112 1 114 1 31/ 5/8 112 /16 1/8 0

1.0 C[IL I 47.6 87.6 q8.6 9.b 50.8 51.G 51 .9 52. 1 2. c2. 1 52.1 S2.1 Sz, .2.1 S2.2 S2.2

ur ezCDI .' ci.7 5J.1 2.6 !3.9 V 4.8 55.3 'S.6 55.6 S5.6 59.6 59.6 55.7 55.? 99.8 99.66 jArc|I -s. ! -2. 1 S1.1 S2.8 93.9 54.4 Ss.! 05.9 .6 .6 S 9.6 9S.6 9S.7 SS.? 99.8 99.8LE 16-'fPl 15.4 Sc.b St.e 92.9 58.3 !8.6 S.8 SS. 7 9S.? 5. 9 5%.1 S9.? 55.6 95.A 99.9 99.9..r I80L S.? II.1 I 7.2 53.2 98.3 598. 55.i 56. 56.T S6.c 96.0 96.0 56.1 C6.1 56.2 56.2iE l7r-I 87.2 12.k S . 5.9 6. t '6.4. 67.6 51.8 5.7. .6 .8 .6 S.9 S7.9 58.0 5.0

,., 130rc,0 %Q*9 95.9 56.9 Se.L S9.1 -p;.7 60.7 60.8 6G.9 60.9 6n.9 60.9 61.0 61.0 61.1 61.1(,r 9t1 22 .I 96.2 1 5 99. 6.3 .9 61 .9 6z.1 2.1 62.1 6i,.1 62.1 62.2 62.2 62.3 62.3E 8^U1i S3.3 59.? 6C.? 61.6 62.6 41.8 64. 68.7 68.7 69,7 68.7 68.1 68.8 68.8 68.9 68.9

t E1 I;.L6 9 61.3 67.6 63.9 65.0 65.6 66.6 66.8 66.8 66.8 66.4 66.6 66.9 66.9 61.0 67.0-'r 6' LO1 9. 61.8 6 3.0, 681.31 6.8 66.C 671.0 051. 2 67.2 67.2 67.2 67.2 61.3 67.3 b7.% 67.8

*r ti Le I ,6 6I7 b?- 66. 6 q.3 69.8 1 7 1.2 1. 11.4 ?1.% 1.,6 7.6 11.1 71.1 71.8 71.6. tVJ 6C 1.1 64.6 10.1 11.8 72.6 13.4 78.1 7499 7.9 78.9 7.0 ?S.O 7S.1 75.1 1S.2 7S.2,. ujr 6-.6 71.8 73.2 78.6 75.9 7L.7 7'., 78.2 78.2 16.2 ?p. 3 78.3 76.4 76.8 70.6 78.6,,' co 69.0 78.0 76.1 11.1 78.2 Ac.3 61.1 E1.9 81.9 11.9 02.0 62.0 82.1 2. 1 82.2 82.2(.r 3rG 69.9 77.6 8,.3 62.v b.6 P.3 86.9 87.1 87.1 P7.1 87.2 61.2 a7.3 6.3 17.8 87.

'.J VoOI 61.2 79.8 b2.2 9.2 66.1 ,.1 s9.2 69.8 69. '9.8 6".t 89.6 %9.? A9.7 89.8 89.8ur Zor 1 61.9 6G. 8s3.8 89.9 68.0 A9.6 91.1 91. 1 91.3 91. 3 91.8 91.8 91.6 91.6 91.7 91.7tI IUCI 61.7 11.1) 8.1 P6.2 88.3 69.9 91.8 91.1 91.7 91.1 91.8 91.6 91.9 91.9 92.0 92.0(Z5 15.2 67.8 11. 3 68.6 67.6 6 9.81 '1.1 91.8 93.c 93.r s0 91.~'.1 93.1 93.2 93.2 93.3 93.3(.6 32031 68.2 81.9 89.6 87.9 9n 2 01,9 ,3.7 93.9 91.9 93.5 94.V 94.0 98.1 94.1 98.2 98.2

"r 13 n 1 6 92.8 86.1 08.8 90.8 4i.8 V8.1 98.6 44.6 q%8 98.3 98.9 9S.0 q.0 9S.1 %%.1

0E Yc"6 63.6 12.4 86.1 86.8 9t.8 2.8 9.! 98.8 98.6 94.0 94.9 98.9 99.0 99.0 9S.1 9S.1L E I 66.6 12.6 86.2 86.6 97.9 9-.6 98.8 9.95 98.9 98.9 99.C 9S.0 99.1 +§1 9S.z 99.2LE 12 6'.9 6.9 66.7 89.0 91.3 3.1 9!.0 99.8 9s.4 0S.1 9s.6 99.6 9S.? 99.1 99.1 9S.6"Ll t ;] 69. '3.2 87... 89.6 S2.1 94. 8 6.2 96.9 V6.9 96.9 97.0 97.0 97.1 97.1 97.2 91.2

LE '1?I 61.1 43.8 87. 9t;.3 93.0 -4.9 97.r 97.9 8.n' 08.c 94. 9 96.9 9.4 88.8 96.6 91.6%. qL2I 69, 1 3.6 81.6 90.6 93.2 9%.1 9.' 98.2 96.1 3q.3 90.? 9..7 98.9 98.8 98,9 .9! I I t 9.1 '1.t 1.6 90.6 93.2 9.1 91. 98. q 96.6 4.6 9 .0 99.0 99.1 99.1 99.2 99.2

4.C .C 69.1 '3.6 87.6 90.6 93.; 't.1 97.8 98.0 V8.6 96.7 99.2 99.2 99.3 99.3 99.8 99.8.r 10 61.31 3. 6 87.6 90.6 93.2 Y5.1 97.1 988 9H6 98. 99.7 99.7 99.6 99.6 99.9 99.9

r r Ito 18 p3. 6 e.6 90.6 93 .2 d? . 1 97.% 98.'4 90.6 '8.8 99.7 .9.17 '9.61 99.6 99.9 100.0

TOTAL NUM14Lt O OP5RVA61085 9cL

'-L fA L CLIPIfA1OLOC., 78A46 F[HCE,1.L. FRLL[EP.LY CF OCCURRlENCE OF CEILING, VERSUS VISIBIL.ITY558851 AC F k0OM O0RLY 113£SLPV ATICPIS

SAI 5521#566 775.287PA 5161366 NAME1 N1AGAq FALLS TAP NY PEIO0 OF RECOPO: 77-86 ::

rC GLr. Ir GE GE G t GE 2E G5 GE GE GE GE G

NO CC IL I 36.C 111.8 A$ ! 5 6666.66 %S..2 45.6 46.1 46.2 'eC.2 6.3 416. 164.3 4b6.3 46.3 416.3 4bI

f.E -OCCOI 14J.9 415.4 171.2 46 .3 119.3 49.11 51 .3 50.5 50.S 50.6 sf1.5 50.5 50.6 50.5 50.6 sc0.7LE ISCOCI1 39.C. 45.5 667 .3 668.11 69.11 s0.(. ST .4. 0.6 5! .6 5116 6".6 so0.6 50.6 50.6 50.1 50.8C I ibr oj! 39.1 465.6 661 .66 1B 65 119.S 56. 2 5?.S 50.1 60.7 ? r. .1 S O17 5.? So* 5.8 50.8 5 C.9v. i117L.t 139.8F 116*1 . 18.2 49.11 50. 3 51.0 51 .3 51.S 5I.S YI.6 51.6 51.6 51.6 51.6 51.7 51.6LE 12(671 662.8 46.7 669.7 50.9 51.9 52.6 S2.9 53.1 63.1 53.2 53.2 S3.2 53.2 S3.2 53.3 53.1

ut' ICCL!"I %3.1 t3.8 52.b S%6.2 -.5.2 55.6 56.2 56.4 56.6 16, 6.5 56. 5 5bS 6.5 S6.5 56i.6 56.715 97603 666.1 52.0 511.1 55.. 56.5 57.2 51.5 57.7 7. 570 %.a Si. 5761.8 57.8 6. 7.9 56.01,E atoC? 13.8 '%1.2 56.6 57.9 66.9 59.6 59.9 63.1 b32? 60.2 60.2 60.2 60.3 60.3 60.3 60.666c ?-cu 463 66.2 r, .5 57.8 9.66 60.5 61.? 61.6 6il8 61.6 63.9 61.9 61.9 61.9 61.9 62.0 62.1GE 6601 %46.2 1;6. 9 59.2 61.6 6l2.2 62.9 63.3 65. 5 63.5 63.6 63.6 63.6 63.6 63.6 63.7 63 .6

Lr# x s061 r,.6 a '9.9 62.6 646.d 65s. . (6.66 66.R 61.6 67.1 67.1 67.2 67.2 67.2 61.2 67.3 67.41,C 1'I C .4 62.2 646.8 66.6b 68.3 C9. 1 69.6 69.8 69.8 69.9 7n.0 70.0 10.0 70.0 10.1 70.2

* ' :GDI S4.r '4 .4~6 67.1 f9.2 70.7 71.6 ??.1 72.41 12.4 72.5 ?'.S 72.5 72.5 72.S 72.6 72.7-.r 3,rZ s6.11 67.6 711.6 73.') 7f4.7 75.7 760~ 76.6 76.6 76.7 78.7 76.1 76.8 76.8 76.8 76.9,E ICC5 b50 9.3 11.7 7S.2 16.0 b0.C e1.z 81.8 82.1 82.1 P2.2 82.3 82.3 62.3 12.3 82.6 82.5

GE5 ;'Lc 61.1 16.0 77.46 661.4 62.9 .1 I 66".8 as.1 85.2 465.3 sl'. 3 853s.3 8 6 P.3 65.6 86.5LE 2-C0oI (2.3 '6.1 80.2 P3.5 83.9 P7.2 88.1 $8.66 88.5 Q6.6 814.7 8o.7 s. 88.7 861 8.8 88.9E6 10601 62.7 167 lC:9 8611 16 7:9 88. 89.3: .2 .89 .6 89.:66 89.:6 89: 89. 69.6

65 C t.2 66 18.1 825 89 6. S 0. go 9 913 91.6 1. 91. 91.6 916 91.6 9.7 91...E I; 0cI 6%6.r 18.8 83.S 87.6 a9.7 93.3 92.2 92.6 92.7 92.8 97.9 92.9 92.9 92.9 93.0 93.1

C IE zccol (6.3 '9.3 866.1 87.6 90.6 '2.1 '43.1 93.6 13.1 93.6 91t.9 93.9 93.9 93.9 966.0 966.1LE OL01 66.? 79., 64.. 97.9 90.1 92.66 '.1 93.9 966.0 901.2 940~ 911.3 966.3 966.3 966.3 966.64.5 861 66.66 79.1 84.6 86.2 91.1 9;.$ 966.0 911.5 966.6 466. 966.8 96.8 96 966.8 96.9 96.0

7607M 611.6 10.9 866.9 P8.6 415 93.3 966.5 9S.1 9S.?' t566 '.6 9S.66 95.5 O5.5 95.s 95.6rC '65l 666.6- 80.0 8S.1 88.9 N12.2 0%. .6 9-.3 96.G ',6.1 06.3 9b.6 96.66 96.6 66.66 96.6 96.6

U* 61 1C 611.6 !:.1 85.6 89.6 93.1 '56.1 96. 67.66 97.5 667.1 97.q 97.9 97.9 667,9 98.0 98.1IX :("It 666.8 *I.; 85.5 9.8 S3.6 gs.6 97.6 97.9 is.0 98.2 78.66 98.6 98.6 98.6 96.3 98.6it ! 6!l1 #4.6~ f 4.2 85.5 @9.8 q3.5 9E.6 97T., 98., 98.3 9P.6 98.8 98.6 98.6 98.8 98.9 99.0'.6 ?760 666.6 .0.2 85.6 69.9 ".S 45.7 1 7.! 98.66 98.6 96.8 99.1 99.1 99.1 99.2 99.3 99.6Ir Ira 89.6 e.1 85.6 49.9 113.s 56.7 91.! 96.66 i8.6 99.9 99.2 99.3 99.6 99.6 99.6 99.9

Cr " 66.6 -0.2 85.6 69. ip 61.5 55.17 97.! 96.411 48.6 98.66 99.2 99.3 99.66 99.5 99.6 100.0

131A86 66J6601 Of O"SrAVAIIiNi ??CC

GLJOAL CLIMAIOLOGY 4kANC4 PEkELNTAG( FEEUUENCY OF OCCuRPENCE OF CEILING VFRSUS VISIBILITYtSAFETAC FROM IOURLY OASLAVATIONS

I1R WEAT ?P SERVICE/MAC

STATCN NUMBLP: 7752L1 STATION NAME: NIAGARa FALLS IAP NY PERIO1 OF RECORD: 77-86MONTH: OCT HOURSILSTI: 0000-0200

C LILIP.G VISIBILITY IN STATUTE MILES

IN I GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE

LEE I 1i L S 4 3 2 1j2 1 112 1 1/4 1 1/4 5/8 112 S/16 1/9 0

%0 CEIL I 2.2 !8.5 39.0 !9.2 90.1 40.3 4'.6 41.1 91.3 41.9 91.4 41.9 '1.9 '1.'1 91. 91.6

GE 200CO1 36.7 '10.0 90 5 110 .8 91 . 9,.0 42.14 92.6 43.0 43.1 7.1 93.1 93.1 43.1 43.1 43.3IGE /Ol 36.7 40.L 90.5 00.8 91.8 2.0 42.4 92.8 43.0 93.3 4!. ] 63.1 43.1 93.1 43.1 "3.3

Go 1600uc 3b.9 90.1 9.b 90.9 41.9 42.2 42.5 92.9 43.1 43.2 93.2 93.2 93.2 43.2 93.2 93.,

uE 14r (60 37.6 14 1.C 91.5. 11.7 92.6 E 3. 93.3 93.8 99.0 '9.1 '19.1 '194 1 '19.1 9.1 9.1 '16.34,r 12r CJl J,2 41.5 42.0 '12.3 '13.3 93.5 93.9 9.3 99.5 49.6 '01.°6'19. 44.6 46.6 49.6 '19.8

LE 10lCG 'C1.6 '9.1 99.6 '1.8 45.9 '6.1 96.5 97.0 '17.2 97.3 97.3 97.3 '7.3 '7.3 97.3 '17.5iE 9cC0I 91.7 45.3 915.8 06. L 47.1 47.3 97.7 "9. 3 98.5 49,6 . '1 6 '8.6 '8.6 48.6 98.6 '18..A€ bC0C 93.3 '7.5 9P.2 4.5 '69.6 99.6 5.2 50.8 51.0 11. 1 sl1 51.1 51.1 ;1.1 51.1 51.3IE 7( L- '1S.2 49.4 50.0 sC.3 S1.9 51.6 52.- 5Z.6 52.8 52.9 52.9 52.9 52.9 52.9 52.9 53.16E 6'o0 '6.5 51.U 51.1 52.3 53.1 13.3 53.8 59.3 59.5 S.6 54.6 59.6 59.6 5'1.6 59.6 59.8

.E S-rol 53.5 58.2 58.9 59.9 60.6 60.9 61.3 61.8 (2.0 62.2 62.2 62.Z 62.2 62.2 62.2 62.9t*IE 4!CO 59. t9. 69.7 65.2 66.6 66.8 67.2 67.7 6BC 68.1 60.1 68.1 68.1 68.1 68.1 68.3

.9 9'00 1 641 t9.6 70.6 71.2 72.6 72.9 73.3 73.9 79.1 79.2 79.2 7.2 74-2 74.2 79.2 79.9 ..

UE is c.1 66.3 72.5 73.8 79.3 79.7 76.1 76.6 77.1 77.3 77.1 77.9 77.9 17.4 77.9 77.% 71.6

-E 3'.Llo 1 69.5 76.3 77.8 78.7 80.1 ?C. 5 81.1 81.6 61.8 81.9 81.9 81.9 81.9 81.9 81.9 82.2

2E 2CC 1 72.4 p ,0 81.7 82.7 89.1 91.5 65.2 85.9 8b6.I 6-3 86.3 86.3 86.3 86.5 86.5 86.7uF 2C00j 79.2 92.4 b4.2 85.5 87.1 37.5 8'.2 88.9 69.1 99.9 89 9 89.9 89.9 89.5 89.5 89.7%,E 14Ll 79.S AZ.9 89.8 06.1 87.7 86.3 89.9 89.1 89.9 90.1 9n.1 90.1 90.1 90.Z 90.2 90.96f 1SL31 79.9 83.9 85.5 87.u e8. 89.1 99.8 90.5 90.8 91.0 91.9 91.0 91.3 91.1 91.1 91.36 E 12C02 75.2 93.6 8S.8 67.4 89.1 9".6 90. 91.3 91.5 ol.7 91.7 91.7 91.7 91.8 91.8 92.0

GE ICC I 75.3 99.0 86.1 87.8 89.7 90.3 91.3 91.6 92.0 92.3 91.3 92.3 92.3 92.9 92.4 92.6.E CoJ 7e.1 .4.3 68.6 8.3 90.1 9 .6 91.5 92.4 92.6 92.8 97.8 92.8 92.8 92,9 92.9 93.2

6E 9L01 79.6 A9.6 87,1 8b.8 9C.P 91.9 9.7 93.1 93.3 9!.S 91.S 93.5 93.5 93.7 93.7 99.0G( 7OC 75.7 Pq.6 67.3 89.1 91.1 91,7 92.7 93.5 93.9 91. 1 99.1 94.1 99.1 qq.2 99.2 94.5

,E C CC1 7T.7 94.6 87. 89.9 91.Z 91.9 93c 99.0C 99.3 90.5 9'.5 94.5 901.5 9906 94.6 990.9

uE ".On 7.7 09.8 87.9 89.2 91.3 92.9 93.7 99.7 95.1 95.3 9S.3 95.3 95.3 95.9 9s49 95.7

6,E a T| 7S.? '9.8 87.7 89.6 %1.7 9z.8 99- 05.9 95.7 96.1 %6.1 96.1 96.1 96.2 96.2 96.6

AE 3.C 7S.7 ,.8 47.@ 89.1 91.9 93.1 99.7 96.1 96.5 96.9 96.9 96.9 96.9 91.0 97.0 97.3GE 201l 75.7 84.8 87.6 89.7 91.9 9?.1 4 .7 96.1 96.5 q7.0 97.0 97.0 97.2 07.9 97.7 90.3up: 1.CI 711.7 89.8 87.6 99.7 91.9 93.1 99.7 96.2 96.7 07.3 97.3 97.3 97.8 98.1 98.4 99.8

GE nI 75.7 09. 87.8 P9.7 91.9 93.1 99.7 96.2 96.7 97.3 97.3 97.3 97.8 98.1 98. 100.0

.............................................................................................................................................

lOYAL tIUMLI ef Or-SEPVATIO4S2

930

- ."_ _ _

II

CLObAL CLIIMAIOLOY FRANCH PE[CE'1 AGE FREGU[NCY OF OCCU41P.CCE OF CrILING VERSUS VISIBILITYAIR .EATHEP SERVICE/MAC

STATION NUMqLR& 725287 STATION NAME: NIAGARA FALLS ZAP NY PERIOD OF RECORD: 77-86MONTH: OCT HOURsILSTI: 0300-0500

IN J -E GE GE GE GE GE GE GE GE GE Gr GE GE GE GE GEFEET I 1 6 6 4 3 2 112 2 1 112 1 114 1 1/4 5/8 1/2 s/16 1/14 0

'40 CCIL 1 33.4 !6.6 57.3 37.8 38.5 16.9 39.- 39 39 91 39.1 39.1 39.2 39.5 39.5 39.5 39.5

I.E 2vl! 1 35.s !6.6 39. 40.1 tin.8 41.2 41.3 41.b 41.S 41.5 41. 41.6 41.8 41.6 41.8 41.8GE Lrnl i5, 91.6 39.4 40.1 40.8 41.2 41.3 41.S 41.5 41.5 41.5 41.6 41.8 41.8 41.8 '11.8U C. 16brJi 35.5 !8.6 39.1 40.1 4.8 41.2 41.3 41.5 41.5 41.5 11.5 41.6 41.8 41.8 41.8 841.8cE i14 ,cI 35.9 !4.0 39.8 40.b 41.2 41.6 41.7 41.9 41.9 11.9 41.9 142.0 42.3 12.3 42.3 42.3CE iir'oi 36.1 !9.2 0.C 40.8 'At.% 4.b 41.9 42.2 42.2 42.2 42.2 42.3 42.s 42.5 142.S 142.S

L.E 1 ro0l 3A.q 41.7 42.5 43.2 43.9 41.3 41.4 144.6 44.6 44.6 144.6 141.7 44.9 44.9 14q.9 41.9GE 9 001 39.0 42.4 43.1 43.9 44.6 45.1 45.3 45.5 4.5 15.5 15.5 45.6 s.8 45. 1468 45.8GE @roll 141.3 41.0 414.7 45.5 46.2 1b.7 46.9 471 47.1 47.1 47.1 47.2 47.4 47.4 47.14 17.4A .. 7CCOI 41.5 145.2 46.0 46.9 47.6 48.1 48.3 48.5 48.5 48.5 48.5 48.6 48.4 148.8 48.8 %8.E 06COI 12.14 46.3 47.i 48.1 48.9 49.5 4Q7 49.9 49.9 49.9 149.9 50.0 50.2 50.2 50.2 50.2

I.E 5Co0 17.4 51.9 53.1 Sq.2 55.2 55.7 55.9 56.1 56.1 56.1 56.1 56.2 56.5 56.5 56.5 56.7GE 14'OI 52.8 S8.0 59.1 60.2 61.2 E1.7 61.9 62.2 62.2 62.2 62.2 62.3 62.5 62.5 62.S 62.7

1E qcfuOl 58.0 63.8 614.9 66.0 67.2 67.7 68.0 68.2 68.2 68.2 61.2 68.3 61.5 68.5 68.5 68.7IE 3!Ol 61.9 8.14 69.8 70.9 72.C 72.6 72.8 73.0 73.0 73.0 73.0 73.1 73.3 73.3 73.3 73.5GE 3rd 66.3 73.2 71.8 76.1 7?.8 76.14 78.6 78.8 78.8 78.8 78. 78.9 79.1 79.1 79.1 79.4

4E 25C': 70.1 77.5 79.1 80.4 82.3 !.O k3.2 83.14 83.7 F3.7 83.7 83.8 84.0 4.0 8%.0 84.2.E 2UC| 72.5 F3.4 82.3 83.5 85.4 16.6 86.6 87. C 87.2 47.2 87.2 87.3 87.5 87.5 87.S 87.7[ 1p9ca 72.8 R0.9 82.7 R14. 85.8 97.1 87.4 87.6 87.8 8?.8 87.8 88.0 88.2 88.2 68.2 88.4*.E jDJC 73.5 P1.9 83.9 85.5 81.4 P8.7 89.0 89.2 69.5 09.5 8q.5 89.6 69.6 89.8 69.8 90.0CE 12nli 73.9 P2.5 84.4 86.2 88.2 P9.5 89.8 90.0 90.2 90.2 91.2 90.3 90.5 90.S 90.5 90.8

GE 1'001 71.2 P3.0 85.1 6.9 89.9 90.2 90.6 91.0 91.2 91.3 91.3 91.4 91.6 91.6 91.6 '1.4(, E 4G.I ?4.2 e3.2 85.6 1.4 89.5 L.8 91.2 01.6 91.7 91.8 91. 91.9 92.2 92.2 92.2 92.4G.E 900 74.2 13.2 85.6 97.4 89.5 9E.& 91.2 91.8 92.f 92.2 92.2 92.3 92.5 92.S 92.5 92.7u' 70.11 7%.2 83.3 85.8 87.6 89.7 91.0 91.4 92.2 v2.6 92.7 92.7 92.8 93.0 03.0 93.0 93.2LIE .LV 1 714.2 93.3 85.8 87.6 89.8 91.1 91.5 92.3 92.7 92.8 97.8 92.9 93.1 93.1 93.1 93.3

LE Cl| 714.3 03.5 6.0 88.1 9C.3 91.8 92.4 93.2 93.R 991.0 94.0 14.1 914.3 94.3 94.3 914.(,E 1o00 714.3 '3.5 86.3 88.7 91.C 92.t 93.1 94.3 94.8 45.1 95.1 95.2 95.41 95.4 95.4 9S.6GE lCd 71.5 03.6 86.6 89.0 91.4 93.1 94.3 95.2 95.8 96.1 96.1 96.2 96.5 96.5 96.5 96."At 20 L9 714.5 .3. 86.6 89.0 91.5 93.3 94.3 95.5 96.3 96.9 97.t 97.1 97.3 97.4 97.6 98.1*E 1o 714.5 *3.8 86.6 19.0 91.5 93.3 914. 950. 96.3 146.9 97.0 97.2 97.6 97.1 98.2 99.2

L.E ni ?*. '3.8 86.6 89.0 91.5 13.3 94.3 95.5 96.3 96.9 97.0 97.2 97.6 97.8 98.3 100.0

TOTAL NUNPER OF O!SCRVATIONS: 930 r

'9,

GL :WAL CLIMATOLOGY BRANCP PERCENTAGE FREQLENCY OF OCCURRENCE OF CEILING VERSLS VISIPILITUSAFEIAC FROM FOUPLY OBSERVATIONSAIR rFAT"ER SERVICE/MAC

TATIOf. AUMHE:v7E:/:7 STAT10N NAME: NIAGARA FALLS TAP NT PEPIOD OF RECOPO: 77-86

MONTF: OCT 1 OURSILST: 0600-8OC

LE IL I'.G VI$IPlLIT7 IF SIATUTr MILESIN G oL GE GE GE GL GE GE GE GE GE GE GE GE GE GE GE

FEET I,, L 5 41 3 2 112 2 1 112 1 114 1 !lQ 5/8 112 t/16 1/4 0

10 CE|L I 23.2 !2.8 33.1 34.4 34.9 3S.4 36.0 !6.0 36.0 36.1 36.5 36.5 36.6 36.8 37.1 37.6

L. 2:tCi 3 .2 35.2 35.7 37.2 38.C !9. 4 39.1 39.1 39.1 39.2 39.6 39.b 39.7 39.9 40.2 40.8.E 180CC I 30.33 '5.3 35.8 37.3 38.1 !E.5 39.2 39.Z 39.2 39.4 30.7 39.7 398 4o0.0 40.3 40.9LE 1 L Ib o !,.q 4 5-4 3S.,, 37.4 38.2 !8, 6 39.4 39.4 39.4 39.s 39 .F 39.8 39.9 %0,1 40-16 41.0UE 1 4C 3-.' li.5 36.1 37.6 it.4 !8.& 39.6 39.6 39.6 79.7 Q nD40.O 40.3 O.1 4O.6 1.2UE 12"J I1.4 '6. 35.1 3!1 32 6 9. !9 9 .0.6 4096 3C. 30.8 4191 1.1 1.2 41. 41.7 42.3

I '.C UD 3 3.P F 8.9 59.7 41.3 42.3 42.7 ? 4 .4 43.q 4 3.4 43.5 43.9 q].9 414.0 44.2 4114S 415.i6E 9rcol 34.7 !9.9 40.8 42.14 43.4 43.9 44.7 44.7 44.7 44.8 4S.2 45.2 45.3 45.5 45.6 46.3

E d r. C C|I 35.P 4 .c 1.8 4.5 4 .6 4. 1 46.1 96.1 46.1 46.2 46.6 46.6 46.7 46.9 47.2 47.7E 7lCC I 3S' 42.2 4 3. 44.8 45.9 46.3 47.4 47.4 47.4 97.5 47.8 47.8 48.n 48.2 48.5 49.0

GE 6rou0 37.7 43.1 44.2 46.0 47.1 47.5 48.6 48.6 48.6 487 4,.0 49.0 49.1 49.4 49.7 SU.2

E $EC 1 42.4 41.2 49.4 51.3 52.8 '3.5 64.6 54.6 64.b p4

.7

S.1 S5.1 55.2 55.4 55.7 56.24- q.CI 46.1 F3.3 54.9 57.0 58.5 59.2 b.3 60.3 60.3 60.4 6n.R 60.8 60.9 61.1 61.4 61.9

I 4 rUI 4.0 r6.6 58.4 60.5 62.4 6j.3 64.4 64.4 b4.4 64.5 64.8 64.6 64.9 65.2 65.5 66.0!.E 3 GI 17.9 Q.9 6Z.9 65.2 67.4 66.4 69.6 69.6 69 7 69.8 77.1 70.1 70.2 70.4 10.8 71.3uE 3rCI 156.8 65.1 68.0 7C.3 72.9 74.0 75.2 75.3 75.4 75.5 76.8 75.8 75.9 76.1 76.5 77.0

(E 2-.CI 59.1 69.0 71.3 73.7 76.2 17.4 1.6 79.7 78.9 79.1 79.5 79.5 79.6 79.8 80.1 80.6E 21 CI 6.2 72.1 74.8 17.4 ao. 1 '1.3 82.6 R3.0 83.3 03.5 84.0 84.0 H4.1 4.3 804.6 85.2

G.E I'..C I 62.9 73.2 75.7 78.3 81.c 1. . 8.4 83.9 b4.2 p.Q 84.8 84.8 84.9 p5.2 85.5 86.06E 11ic 1 .!.4 74.1 16.6 79.6 82.1 4.0 o5.4 86.C 86.% A6.7 87.1 A7.1 87.2 87.4 87.7 88b.3i. I2C 1f64.6 75.8 79.5 R3.3 89.4 '1.9 87.3 88.C 8A.4 48.6 89.2 89.1 89.2 R9.5 89.8 90.3

-1orit 5.1 76.S 79. 2 P2.2 6S5.6 97.2 85.4 89.5 89.9 90.1 9n.6 90.6 90.9 91.0 91.3 91.8CE QCc 65.2 76.6 79.4 P2.3 8S.8 47.4 69.1 99.8 90.- 90.4 91.0 91.0 91.1 91.3 91.6 92.Z

I. FC V 6,.3 16.4 79.6 82.5 86.1 7.8 89.6 90.2 90.6 '0.9 91.4 91.4 91.5 91.7 92.0 92.6.E 7L I 65.. 77.1 19.9 ez.o 86.7 16.5 9 '.2 90.9 91.3 01.5 92.0 92.0 92.2 42.4 92.7 93.2

I.E 6 ?I 6I.4 77.1 80.0 F2.9 86.9 Fd.8 9C.5 91.2 91.6 91.8 92.4 92.4 92.S 92.7 93.0 93.7

U. 'I 61.4 77.3 80.2 83.3 87.- 9.9 91,C 92.7 83.4 93.7 94.2 94.2 94.3 94.6 95.1 95.7*,E 4 "I 66.4 77.3 80.3 AS.% 87.1 9®.2 92.4 93.7 94.4 94. 7 99.4 95.4 95.5 95.6 96.2 96.9

r T.c 69.4 77.3 80.3 83.5 87.8 q2.3 92.5 93.8 94.6 Q4.9 9-,7 95.7 9S.8 96.1 96.6 97.2'A zeCI I5.4 77.3 803 83.5 A7.8 ,. 2 .f 94.2 9S.1 OS.5 96.2 96.2 96.5 96.8 97.2 98.0GE 1cr 6.8 17,5 80.! 83.5 87.8 qL.3 92.q 94.Z 95.1 95.5 96.3 96.3 96.6 07.1 97.6 99.0

IbE i5 6 .S .7.3 A.3 83.6 41.4 )jS 97.9 94.2 45.2 '5.5 96.3 96.3 96.6 97.1 97.6 100.0

.. . ... .... ..... ... ... ...

TOTAL 6.UM"Ll Of O'.ER8811045: 430L

F

LLE| CLT"ATOLOLY n;WANCV PEICL';TA(I Ff;EQUENCY OF OCCtIPEp4CL OF CEILING jEASL'5 VISIPILITYI. L& A ROM HOUPLY O SLPYATTONS

[?=[=HFHSEPVI(E/MAC

T NO;c: 75267 N NIAUARA FALLS IAP 77-86PT]r -IA ION NAMEH'. PEE00yFIRE/881-8

MONTH: OCT HOURSILS3I: 0900-1100

.......... °.............°.............°..°...............................°.......°......°°.........°..........o.............

LEIL l' VISIPILITY IJ STATUTF MILESI , I L r GE 6E GE LE SE GE GE GE GE GE GE GE GE 6E

FLLT I 1" 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 5/8 112 5/16 1/4 0

...............................................................................................................................................

'.3 CEIL I Z-1 '2.7 33.6 34.7 3S.4 !5.6 35.7 35.8 35. 35.8 35.9 35.9 35.9 35.9 35.9 35.9

(,E .u S" 1 12.2 '6.9 38.4 !9.4 47.0 41.2 40.3 40.4 40.' 40.4 40.5 40.5 40.5 40.6 40.6 4u.6.4 6 '.0 37.4 !7.1 38.6 39.6 40.2 40.4 40.5 40.6 43.6 40.6l 4n.8 40.8 40.8 40.9 40.9 40.9

r lL"COl '. '7.2 38 .7 9.7 40.3 4L. 5 40.6 40.8 40.8 40.8 40.9 40.9 40.9 41.0 q10 41.0,E i4'Pl 3. 38 , 3, .6 40.5 41.2 41.4 41.5 41.6 41.6 41.6 41.7 41.7 41.7 41.8 41.8 41.8.4 1' LZI 3'.' 42.2 41.7 42.7 43.3 f3.5 43.7 43.8 43.8 43.8 43.9 43.9 43.9 44.0 44.0 414 .0

E, c 120 1 42.9 44.4 45.b 46.1 46.3 46.5 46.b 46.6 "S.6 46.7 46.7 46.7 46.8 46.8 46.8

Y, 4L 3 q.9 44.0 45.5 46.7 47.5 47.7 47.8 48.0 4 8 . P 6b.O 4A.1 48.1 48.1 48.2 48.2 48.2(1c -C3 41.7 46.5 48.1 49.b 5C.4 W .e 52.4 51.L 51.0 51.0 51.1 51.1 51.1 51.2 51.2 51.2,f 7'LI 41.7 47.1 48.9 50.3 51.3 31.6 51.7 51.6 51.8 51.F 51.9 51.9 51.9 52.0 52.0 52.0(. L -LrI 4Z.5 47.8 49.7 51.4 52.5 S2.8 52.9 53.C 53.0 53.3 53.1 53.1 53.1 53.2 53.2 53.2

f r %tu0C 46.0 '2.3 54.2 !5.9 57.2 S7.5 57.6 57.7 57.7 57.? 57.8 57.8 57.8 58.0 58.0 58.0-,E CL- 44 ,P '4.b 571 S9.6 b.0 61.3 b1.4 61.S 61.5 61.5 61.6 61.6 61.6 61.7 61.7 61.7

'. 2 1 49.7 17.3 59,7 62.4 64.c 64.3 64.4 64.5 64.5 64.5 64.6 64.6 64.6 64.7 64.7 64.7

. r 51.5 59.6 62.11 64.9 66.8 67.1 67.2 67.3 67.3 67.3 67.4 67.4 67.4 67.5 67.5 67.5:r (01 55." 64.5 67.6 7u.6 72.7 73.1 73.2 73.3 73. 3 72.3 7.4 73.4 73.4 73.5 73.5 73.5

; .. CI sC.e EQ.1 72.4 75.6 77.6 76.1 78.2 78.3 78.3 '. 3 7F.4 78.4 78.4 78.5 78.5 78.5. ! 'r'I bt.3 71.2 77.. P. .6 P2.7 93.1 d3.2 83.4 83.4 43.4 83.7 83.7 83.7 83.8 83.8 83.8

I l I t4. 2 74.5 78.4 82.2 4.3 f'4 7 84.9 95.2 85.2 P5.z 85.4 95.4 85.4 R5,5 85.5 85.5I I 65.4 '6.., 79.9 P94b 87.3 84.I 6.4 88.7 88.7 ps.7 84.9 88.9 88.9 89.0 89.0 89.0

l[ S1. 77.2 61.2 6.2 89.0 S9.6 40.1 90.5 4J.5 ',.8 91.0 91.0 91.0 91.1 91.1 91.1

E 4lc1I (E.8 78.5 81.9 '7.3 91.2 91.2 91.5 91.9 91.9 2.2 92.4 92.4 92.4 92.5 92-S 92.5

"IE 6A.6 78.C 81.9 7.3

93.2 91.2 91.5 91.9 91.9 2.2 92.4 92.q 92.4 92.5 92.5 92.5t1 f6.7 79.3 1 2.4 P7.8 90.9 92.0 92.4 92.8 92.8 3.0 93.2 93.2 93.2 93.3 93.3 93.3

A ?J I (6.7 74.6 82.7 88.3 91.3 92.7 93.0 93.4 93.4 '3.7 91,9 93.9 93.9 94.0 94.0 9.0

,

II ( i 86.7 78.6 82.7 P8. 91.5 '3. 93.3 93.8 93.8 ;4.0 94.2 94.2 94.2

94.4 94.4 94.4

L: 1 i 6 .? 78.t 87.7 88.5 92.0 94.2 94.7 95.3 95.3 05.6 95.8 95.8 95.8 96.0 96.0 96.0UE f'CI 66.7 78.7 32.s 84.8 92.5 94.6 95.6 96.2 96.2 06.6 96.9 97.

0 97.0 97.2 97.2 97.2

ro t .. 7 id.7 82.8 48.a 2.7 95.1 96.1 96.9 9b.4 972. 97.6 97.7 97.7 98.1 98.1 98.2. :;r f 6.7 78.7 82.8 98.8 92.7 S5.1 96.2 97.1 97.2 97.8 9 98.5 98.5 98.9 98.9 99.0

' I I 46.7 '8.7 62.4 P8 . 92.7 95.1 96.2 97.1 97.3 98.2 98.7 98.9 99., 99.5 99.6

99.8

6. 7 71? . 7 82.a pa e 92.1 0-11 94.2 97.1 97.3 98.0 9q.7 98.9 99.0 99.5 99.6 100.0

TOTAL htrEg 0F O4S(RVATIOdS: 933,

tLObAL CLIMATOLOGY IPANCH PEWCFNTACE FIECUENCY OF OCCJR89tCE OF OFILING 9RSUS VISIBILIT5uSAFEIAC FROM HOURLY O6SLRVITTONSAI .IAT9EP .ERICE/HAC *.

STAT1ON NLPIPER: 775267 STATICN NAME: NIA6ARA FALLS IAP NY PEDIO OF RECORO: 17-66'ONTP: OCT 1OLSILSTI: 1200-I4C

CEILI, VISIhILITV IN STATUTE MILES

IN I GL GE GE GE GE GE GE Gr GE GE GE GE GE GE GE GEFEET IC I c ! 3 2 11z 2 1 112 1 114 1 !/4 5/8 112 5116 1I4 0

I 0 CEIL 37. f 3.Z 3'.? 34. 34.2 394.2 34.3 34.3 34.3 !4.3 34.3 34.3 34-3 34.3 34.3 34.3

r,E 2Or CJ 34.3 !1.7 3P* 38.5 38.7 !E.9 39.0 39.0 39.0 39.3 39.0 39.0 39.0 39.0 39.0 39.0LE 18'3CC 3. .5 1!.3 3A.4 38.1 38.9 35.1 39.2 !9.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2 39.2

I, 16302135.1 ?., 38.9 39.2 39.S 5.37 39.6 19.b 39,8 19.8

8 v.a 39.8 39.8 39.8 39.8 39.8.E 14C GC 3!.9 79.6 40.0 40.3 43.5 4t.,6 40.9 4q09 40.9 40.9 q.9 -o.9 0.9 40.9 40.9 40.9A0 I2 31.. 41. 42.4 42.7 42.9 43.1 43.2 43.2 43.2 43.2 43.2 43.2 43.2 43.2 43.

2 43.2

(,[ I r cr1 3. 1 144. 44.4 44.7 44.9 4.Z 41-3 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45.3,A6 9CC0 1 41.3 45.1 4S.6 45. 46.1 46.3 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.5 46.5i(0 b3u1 43.5 48.0 46.5 49.0 49.5 49.6 49.9 49.9 49.9 49.9 4q.9 49.9 49.9 49.9 49.9 49.9L LO 77CCI 44.3 49.5 52.C 50. 51.1 51.4 51.5 51.5 51.5 51.5 51.5 51.5 51.S 51.5 51.5 51.5

* r 1Ccl U4.5 49.9 50.4 51.2 51.6 S1.9 52.D 52.C 52., 52.0 5.0 52.0 52.0 52.0 52.0 52.0

E S02011 47.3 13.2 53.8 '4.5 54.9 55.3 51-4 55.4 55.4 55.4 55.4 55.4 55.4 55.4 55.4 55.440 '".CCI1 51.6 a.z 598.t 59.7 6l. I 6, 4 60.5 60.5 6.5 60.5 61.5 60.5 60.S 60.5 b0.5 6).5

,, 4r L21 S4.4 61.3 61.; 62.9 63.5 E3.9 64., 64.G 64.C 64.0 64. 64.0 64.0 64.0 64.0 64.0

,F 3'3n3I 57 t 64.5 65.4 66.5 67.2 67.5 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6 67.6E0 3-0q1 t4.2 71.6 72.6 73.8 747 7S. 1 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2 75.2

.E rOI b5.6 77.4 7Q.5 79.9 b1.1 1.4 81. 81.5 81.5 P1.5 81.5 81.5 81.5 81.s 81.5 81.5..,0 203 73.2 P2.3 63.5 85.3 66.1 f7.5 87.6 87.6 87.6 R7.6 87.6 87.6 87.6 87.6 87.6 07.6LE j9 ICCI 7!.E 03.3 84.6 86.6 8o.1 -6. 63.9 8S. 68.9 86.9 88.9 88.9 88.9 86.9 88.9 889,c Iraqi 74.1 -4.4 86b. 86.7 90.4 51.2 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91.3 91,3(.E 12[ 7 4. 5.3 86.9 89.8 91.7 9z.7 92.9 92.9 92.9 92.9 97.9 92.9 92.9 92.9 92.9 92.9

uIE ItICql 74.7 P5.6 87.2 90.2 92.4 93.3 93.5 93.5 93.5 03,5 93.5 93.5 93.5 93.5 93.5 93.5',E 9Cr1 74.8 E5.9 67.6 90. 92.9 93.9 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94.2 94.? 94.26E PCQl 74.8 36.2 88.1 91.3 53.4 4. 4 94.7 94.7 94.7 94.7 94.7 94.7 94.7 44.7 94.7 94.7(. 7L 1 74.9 P6.5 8.3 91.1 94.1 's,. 3 95.7 95.7 95.7 Q5,7 45.7 95.7 95.7 95.7 95.7 95.70;,E Z 1 7 .1 96.8 88.6 92.0 94.6 95.9 ,6 ( 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7 96.7

(E CG1 7,2 67.c 88.e 92.1 9%.6 99.2 98.1 98.' 9t.4 98.4 99.4 98.4 98.% 98.4 98.4 98.4rE 41G-I 75. P7.L 88.9 92.9 95.8 17.5 98.6 98.9 99.C 99.0 99.0 99.0 99.0 Q9.0 99.0 99.0

GE ?L01 75.2 87. 89,-: 93,( 96.0 96.1 99.2 99.8 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9

-n6 2291 75.2 -7.u 89.3 93.1 96.0 E.1 91.2 q9.b 99.9 99.9 99.9 99.9 99.9 99.9 99.9 99.9

Cc I CC 75.2 7.0 89 . 93.1 96.C '8.2 99.4 99.9 JO,0 1o0.v 10.0 100.0 100.0 IPO.0 00.0 10.0

hE 7 75.2 '7.0 89.0 93.1 96.0 'b.2 99.4 99.9 100.0 1'0.0 100.0 100.U 100.0 100.0 100.0 100.0

VTAL NL'E86 CF OPSE'RVATIlNS: 933JL

- --

LUAL CLIMA1OLOGY 8AJCI PE'CEPI1tAf. FREGLUENCY OF OCCURRENCE OF CEILING VRSUS VISIBILITYUSAFE'AC FROM HOUILY CaSLRVAlICNS

AIR .[ &THEP SfRVICE/MAC

t.TAT C NLIPCE: 7-5267 $T4101 NAME: NI8GPA FALLS ZAP NY PE0100 OF RECORD: 77-86

NONT: OCT FOURSILSTI: 1500-1700

CCILIPG VISrlT

LITY 1N STATUTE MILESIn | GE GE GE GE GE GE GE GE GE GE CE GE GE GE GE fE

FELT i :r 6 4 3 2 1/i 2 1 1/2 1 1/4 1 7/4 5p8 1/2 5/16 1/4 0

140 CL1L 1 31.7 73.7 34.9 35.9 36.7 3c. C 36.0 36.C 36.0 '1. 36.0 36.0 36.0 !6.0 36. 0 36.0

(,E :CCC1 !b.7 ?R.5 43.1 41.1 43.2 41.2 41.2 43.2 41.2 41.2 41.2 41,2 41.2 41.2 41.2 41.2r. ;6o:i 37.1 39.2 4C.5 41.5 41.6 41., 41.6 41.6 41.6 41.6 41.6 41.b 41.6 41.b 41.b 4l.b

IE 16.|103 37.7 '9.9 41.2 42. .. 3 42.3 42.3 42.3 42.3 42.3 47.3 42.3 42.3 .3 42.3 42.3or 14'MUI 39.4 41.7 43. 4:L 4. 44.; 441 4 : 44:.1 4 .,1 44.1 44. 44 1 4.11 4.5 44.1 44.1UE ,r0.1 43.! 1 41.5 451 46.0 46. 46.1 46 * 6. 462 462 46.2 46.2 46.2 462 46.2 4.2

(,I Cri1 '2.9 '5.4 46.9 47.8 48.1 4k. 1 4e.1 48.1 498.2 4R.2 4P.2 48.2 '8.2 48.2 48.2 48.2'A ?'Z r 44.3 46.6 48.4 49.4 49.7 45.7 49.7 49.7 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8uE Ar rC 47.5 C.6 52.6 53.5 54.1 54.1 54 .2 54.2 54.3 54.3 54.3 54.3 54.3 54.3 5,4.3 54.3

C 7!1 4A.* 52.3 54.2 !5.2 55.7 05.7 55.8 55,8 55.9 55.9 5.9 55.9 55.9 55.9 55.9 55.9uC 6tO0C1 52. 54.0 55.9 57.1 57.6 S7.6 57.7 57.7 57.8 57.8 57,8 57.8 57.8 57.8 57.8 57.8

,C 5.E ' v5 5,1 9,1 b.2 62.4 b3.0 3.0 63.1 63.1 63.2 63.2 61.2 63.2 63.2 63.2 63.2 63.2-E 4

tCnl C,7.0 64.5 66. 67,8 68.7 6E.9 69.0 69.C 69.1 69.1 69.1 69.1 69.1 6.9.1 69.1 69.3

,E 47gC1 63.4 68.2 70.4 72.2 73.3 73.8 7',c 74.0 74.1 74.1 74.1 74.1 74.1 74.1 74.1 74.14 3'021 67.7 72.9 75.2 76.9 78.2 7R.7 7A.9 78.9 79.1 79.3 791, 79.1 79.1 79.1 79.1 79.1

3rrI01 71.! 77.0 79.7 $1.5 82.9 63.4 87.7 83.7 83.9 P3.9 8'.9 83.9 83.9 83.9 83.9 83.9

4C 2',j 7Is.3 P1.2 84.u 9b. 87.8 Ae.84 8.7 88.7 88.9 A8,9 89.9 88.9 88.9 98.9 88.9 88.9E 2'f CC 76.q 63.0 86.1 F4.3 9*.4 ;1. 3 "1.7 91.7 91.9 Q1.9 91, 91.9 91.9 91.9 91.9 91.9i.E 1P4 |0 77.2 P3.5 86.7 98.a 91.1 92.c 92.5 92. 5 92.7 92.7 92.7 92.7 92.7 02.7 92.7 92.7* 1' VCg 77.5 '.2 A7.4 89.b 41.9 '3. V 93.' 93.5 9.e8 93.8 93.8 93.8 93.8 93.8 93.8 93.8* . 127' 74.r P 4.8 88.1 90.2 92.7 93.9 94.4 94.5 94.7 94.7 94.7 94.7 94.7 94.7 94.7 94.7

I.E IC'31 7.t P5.1 88.3 90.b 93.3 1'.. 5 '.5.2 95.3 95.5 95.5 9. 95.5 95.5 95.5 95S 95.5,,E I| 71.1 pS.2 88.4 90.6 43. 4 14. 95.1 95.4 95.7 Q5.7 95.7 95.7 95.7 95.7 9S.7 95.7(,E P ctI 79.3 -S.6 89.9 .1.2 94.0 4°2 95.6 95.9 9b.2 Q6.2 96.2 9b.2 96.2 9b.2 96.2 9b.2bE 7. C 79.1 05.7 8Q.3 91.5 94.4 Y5.6 96.2 96.3 96.7 96.7 96.7 96.7 96.7 96.7 9b.7 96.7.E i lor 74s. P5.9 89.2 91.8 94.9 9. 1 97.0 97. 1 97.5 97.s 97.5 97.5 97.5 97.5 97.5 97.5

LE C*:'I 7A.6 Pb. 89.' 92.2 95.S ?6.8 97.6 98. 96.4 98.4 9'.S 98.5 98.5 '8.5 98.S 98.5

LE co 7C.6 '6.5 89.5 92.3 95.7 q7. 1 98.Z 98.3 99.7 98.7 99.8 98.8 98.8 98.8 98.8 98.8I.E 11.3 7P.6 96.J 81 .5 12.1 9S.7 7. 4 99* . 04.6 99.2 09.2 99.4 99.4 99.4 99.4 99.4 99.4

E g 271 76.( Q6.r 89.5 ,.3 95.7 47.4 94.6 98.9 V9.4 94.4 99.6 99.6 99.6 q9.b 99.6 99.biE IC1:0 74.6 '6.1 89., 52.3 9s.7 C7.4 98.6 98.9 V9." 99.4 90.7 99.7 99.8 99.9 99.9 100.0

LE r 1 11.6 16,. 89.5 92.3 95.7 97.4 9q.6 '8.4 9'.' . 99.4 99.7 99.7 99.8 99.9 99.9 100.0

TOTAL UMPEL OF OSRVAT10J: 93$I

rL

bLC9AL CLIPAIOLOGY BRANCH FEICENTAL FSEGUENCY OF GCCLVRQESCE Or CEILIPIC VFRSUS VISIBILITY .* uS'AFTAC FROM 4OUQLY ObSEVV41IUNS


StAl(t. NUMRLO: 725787 STATION NAME: NIAGAA FALLS TAP NY PEPIOD OF RECORD: 77-8f,80611'? OCT IOURSILSTI: IMUO-l20

CE ILIr;G VISIB1ILITY IN STATUTE MILES

IN I IL Gr GE GE GE kE GE Gr GE GE GE GE GE GE GE GEFE 6I 6 5 4 3 2 112 2 1 1/2 1 1/4 1 3/4 S'8 112 6llb 1/40 0

140 Cu. I .2 77.7 3A.5 3b.7 39.2 s. . 39.4 39.5 39.5 39.5 30.5 39.5 39.5 39.5 39.4 39.4

, E 2C'CDI 3.4 47,3 3.; 43.2 43.9 44.1 44 .3 44. 1 4.1 44.1 44.1 44.1 44.1 44.1 4 4.1 44.1.E 161:l0 I 2. 42.9 43.7 43.9 44.5 44.6 44.6 44.7 44.7 t4.7 44.1 4.7 44.7 44.7 44.7 44.7IE 16'CC, 4C.3 43.Q 44.2 44.4 45.1 4t.2 45.2 45.3 45.3 45.3 45.3 45.3 45.3 45.3 45,3 44 .36' 140q1l 41.7 44.3 45.1 45.3 49.9 46.0 460 46.1 46.1 46.1 46.1 46.1 46.1 46.3 46.2 4b.1.,E ICO 42.- 45.3 46.,1 46.2 46.9 47.L 47. 47.1 47.1 47.1 47.1 47.1 47.1 47.1 47.1 47 .1

,U IE 1CC0 4 !4 46.b 47.5 47.7 48.6 4.7 q8.7 48.8 48.8 48.8 4qq,8 48.8 48.8 48.8 48.8 48.6.E 97C| 144. 4 1-7.7 4B.7 48.9 49.8 45.5 49.9 5o.G 5V. 0 90.0 fn.0 50.0 50.0 tO.o 50.0 40.0 ILE 8 CI 41. 11.4 S1.4 51.6 52.5 '.2.6 52.6 52.0 52.8 92.8 57.8 52.8 52.9 52.8 52.8 52.8

-7V71 49.5 '2.3 53.2 .4 5o 3 b4, 5 4. 44.7 44,7 S4 7 44.7 44.7 554 *7 54.7 44.7 44.1G t' Er CI 51. P =4.3 55.3 55.5 46.3 56.6 56.6 56.8 56.8 c.6.8 46.8 56.8 46.8 56.6 46.6 56.8

-,E Lr001 -5.8 90.1 61.3 61.6 62.5 CZ.1 62.7 62.9 62.9 62.9 67.9 62.9 62.9 62.9 62.9 62.9L.E 4' LC 6T. 65.1 66.6 67.0 68.0 66.2 69.7 68.4 68.4 68.4 6p.4 68.4 68.4 68.4 68.4 66 .4CE 4- L t4.4 69.7 71.2 71.1 72.7 12.9 71.2 73.4 73.4 73.4 71.4 73.4 73.4 73.4 73.4 73.4,.E 3rEI f.4 74.2 75.8 76.3 77.3 77.5 77.8 7m.1 78.1 78.1 78.1 78.1 18.1 78.1 7.1 768.1LE 31C0 I 13.C 79.7 81.3 91.9 83.1 F!. 4 63.8 84.C 84.1 04. 1 84.2 84.2 A4.2 84.2 84.2 84.2

IE 2 CI 75.9 53.5 85.4 F6.1 7.3 17.6 8° C 84.4 88.6 48.6 8-.7 68.7 88.7 R8.7 88.7 88.7L.E 2( CI 78.! 6.3 8p.s 89.5 90.9 "1.2 91.8 92.5 92.7 92.7 92.8 92.8 92.8 92.8 92.8 92.8tUF 1r' L! 7R'.6 6.7 88.9 911.0 91.4 91.7 92.4 93.C 93.2 q3.2 9!.3 93.3 93.3 93.3 93.3 93.3.6 1r:I 7q.8 7.3 89.6 9c.d 92.2 OZ.6 93.2 93.9 94.1 4 .1 94.2 94.2 94. .2 94.2 94.2CE Io01 7Q.9 q7,6 9^.0 91.2 97.7 93. 93.9 94.5 94.7 94.7 94.8 94.b 94.8 94.8 94.8 94.8

* . 1' I 74.9 !7.6 97.5 917 93.3 '03.9 94.5 95.2 95.4 05.4 99.S 95.5 95.5 05.5 94.4 95.5cr -[ 79.9 97.8 9.5 94.7 93.3 q3.9 94.5 9S.2 95.4 95.4 99.4 94.5 95.5 45.5 95.S 95.SLE AC7* 79. C 18.L 9 .6 91.9 93.5 94.1 94.7 9S.5 95.7 94.7 96.8 95.8 94.8 95.8 95.8 9S.8r 7C l| 7q.C -8.C 90.9 92.3 93.9 4.*5 99.2 95.9 96.2 96.2 96.3 96.3 96.3 96.3 96.3 96.3

CE f CI 77.2 -8.2 91.c 92.6 94.2 94.6 94.5 96.3 96.7 96.7 90.8 96.8 96.8 96.6 96.5 96.8

i 71.5 d8.4 91.2 92,8 94.5 9 . 2 S1.9 96.8 97*1 7.1 97.2 97.2 97.2 97.2 97.2 97 .2CE 4 r 79.6 48.t 91.4 63.1 94.9 9.6 6.3 97.2 97.4 7. 97.6 97.6 91.6 07.6 97.6 97.6CE r 1 71.8 e.7 91.4 93.2 95.1 9b. t 97.4 94.1 91.4 034 9..4 98.4 98.5 8.S 98.5 98.5fE :-I 1). 6 99.7 91.4 93.2 94. 1 '4.8 97.1 99.2 99.S 98.9 9q.? 99.2 99.4 09.,o 99.41 99.4E 1 L 7 -.6 P6.7 91.5 93.2 ,5.1 9 .8 97. 0 99. 98.6 99.1 99. 5 99. 5 99.7 99.7 99.7 99.8 *

1.E | 79.6 78.7 91.!, 73.Z 95.1 O5.8 97.7 98.2 98.6 Q9.1 90.5 99.5 99.7 99.7 99.8 100.0

...........................................................................................................................................

TOTAL NUMITEN OF OPSEAVATIONS: 930 L

F . .

* 1,L1bA CLIMATOLOGY PRANCF- PEHCENTAG[ FIE(UENCY Of CCCURFLNCE oF CFILIP46 VERSUS VISIBILITYtSAFEjAC FROM HOUQLY CtSLRVaTIONSAIR .EAT#ER SERVICE/P&C

1TAIIt'f NU"2[0: 7:5267 5?A8137 NAME: N41GAPA FALLS IAr NY PEQOO UF AECORD: 77-86

MONTH: OCT FOURSILSTI: 2100-2300

LrLIk VISIFILIT¥ I. STATUTE MILLSIf. I r.L GE GE bE GE bE GE GE GE GE rIL GE GE GE GE r.E

FEE? I IP 6 5 4 3 2 1/; 7 1 112 1 114 1 '/9 518 I2 5116 1/4 0...................................................... ....................................................................

.J CL]L I 37.3 '9.b 43.8 41U. 41.5 41.7 41.7 41.7 41.7 41.7 4 1.a 41.9 41.9 41.9 41.9 41.9

6r 2,1 .3. 4Z.6 417.7 43.4 44.4 44.b 44.6 44.6 44.6 44.6 4.*7 44.8 44.8 44.8 44.8 44.8f C CC 1 1.4 42.7 43.8 44.0 44.5 44.7 44.7 44.7 44 .7 44.7 44.8 44.9 44.9 44.9 44.9 44.9' 1 Ul 41.1 42.8 4 3.9 44.1 4 4.6 44.7 44.S 44.8 44.8 44.8 44.9 45.1 45.1 45.1 45.1 45.1

'1 114'| 41.1 41.8 44.M 45.1 45.6 45. h 4.p 45.8 45.8 45.8 ks .9 46.0 46.3 46.0 46.0 4b.0A1 Ir . l ?.% 45.4 46.5 46.7 47.2 47. 4 47.4 47. e 47.4 47.4 47.5 47.6 47.6 47.6 47.6 47.6

r I'GC 44.4 47.b 48.9 49.1 99.7 4S.,9 4 47.9 49.9 -O, 5".I 5C.2 50.2 O.2 50.2 50.2I.E 9-'Cri 4E'. 49.6 50. .51.0 5 . , I.7 51.7 51.1 1.7 51.8 51.9 52.0 52.0 52.0 52.0 52.0. 8 'C') 4'F.1 11. 52.9 53.1 53.7 !. 53.9 53.9 53.9 54.Q 54.1 54.2 5#.2 54.2 54.2 54.2r 7C-1I 4C.4 !3.2 64. $ .6 55.2 !5. 4 5.'. 55.4 5. 4 55.5 5E .6 55.7 55.7 S5.7 15.7 55.7, F 6CC S1.7 sb.2 57.4 51.6 5q. 1 94 58.4 59.4 56.4 e85 50.6 58.7 58.7 !8 .7 58.7 58.7

LE .I- c 5 7.C (I.7 62.9 63.1 63.7 64.c b4. 64.6C b4.C 64.1 64.2 64.3 64.3 64.3 64.3 64.3:.r 4 .1 (1.7 66.6 67.8 68.2 6A.7 69.2 69.2 69.2 b9.2 69.4 5a.5 69.6 69.6 69.6 69.6 69.6-F 4- CC 5.2 71.: 72.4 72.8 73. 3 74.U 74.0 74.0 14.0 74.1 74.2 74.3 74.3 74.3 74.3 74.3I.E 3'rLC f A.7 74.7 76.2 76.8 77.3 7E.C 78.7 78.C 78.C 76.1 78.2 78.3 78.3 78.3 78.3 78.3. E 1 71.7 78.7 87.3 PI.1 81.7 Z. 4 82.4 8Z.4 82.4 RZ.5 87.6 82.7 82.7 82.7 62.7 82.7

L 7s011 75.4 A3.9 u5.6 P6.6 b7.2 88.2 88.2 88.3 d8.3 48.4 8A.5 88.6 80.6 88.6 88.6 88.6I.E 2' :C I 770r 6S.6 87.7 88.6 89.4 0. 3 90.3 90.4 9C.4 90.5 9'.6 90.8 90.8 90.8 90.8 90.8

77.2 46.1 48.3 88.9 89.8 4.6 979 91.C 91.7 91.1 91.2 91.3 91.3 91.3 91.3 91.3c[ v CCI 73.1 P7.3 69.6 9U.9 91.6 42.5 92.6 92.1 92.7 92.8 91.9 93.0 93.0 93.0 93.0

9 3.0

,r I2117.1 7-. S q.C 9L.2 91.2 92.'4 93.3 93.5 93.7 93.7 93.8 93.9 94.c 94.0 94.0 94.0 94.0

if 1-0I 7.5 48.5 0:99 91.9 93.1 4.3 9 4.5 4.b 94.6 94.7 94.8 94.9 94.9 94.9 94.9 94.9I.E IV'C 75.5 P3.5 91.9 91.9 91.1 '4-03 94.5 94.6 94.6 94.7 94.8 94.9 94.9 94.9 94.9 94.9,,r t.j I 7T,5 !,6b 91,t2 92.2 93.4 4. 6 9 .1 95.2 95.2 953 9'.1 95.1 95.S 05.5 95.5 9.5SIE %I1 7'.f pS.h 91.2 512. 9.5.8 as. 9.6 95.8 95.8 95.9 960c 96.1 96.1 96.1 96.1 96.1

f* I .6 88. 91.2 92.s 919. 95.2 95.7 96.1 96.1 96.q 99.3 96.5 96.5 96.5 96.5 96.5

LE t .1 78.6 08.8 91.2 92.5 !.8 95.3 95.9 96.5 9.5 'b .6 91.7 96.8 96.A 96.8 96.8 96.8E 4C 7-.8 F9.2 91.7 93.U 90.3 q5.9 96.6 97. I 7.1 97.2 97.3 97.4 97.4 97.4 97.4 97.'4.F 'CoI 7l.8 49.i 91.1 93.c 44.1 9t.2 97.1 97.5 97.6 97.7 97.8 99.0 98.0 98.0 98.0 98.0ur ;'L7 7-, P '9., 91.7 93.3 94.5 06.2 97.2 97.6 98.1 18.31 9.4 98.5 98.5 985. 90.6 99.2'r I.C' 7.. 9 z 91.7 43.u 94.5 96.2 97.3 9I.C 98.2 q8.4 99.5 98.6 99.6 98.6 98.8 99.7

6L f ?.8 P9.2 91.7 93.0 04.S q., 97. 94.0 98.2 98.4 9R.6 98.? 98.7 98.7 99.0 100.0...........................................................................................................................................

TOTAL %f1MdLP or o"IE8vAvjaNss 930* e ° e°°° ° e e °e . . .° e °° o °° L.

FF

6LI114AL CLI'ATCLOEiv PI?6NCH PEWCEN8AGE rRE[UENCY OF OCCLrPLNOL OF Ct8L3NG VrHSUS VISIILITY

LSAF IAC FROM 6OVQLY VbSLRAaIONS.319 18A0I-tI! sOEylCtI/N 6,

S74T110 NUMrVEP: 7"52E7 51AT114N NAME: NIAGARA rALLS IAP Vv PEPIOD OF RECOPO: 77-86MONIH: OCI HOURSILSTI: ALL1, ...... ............................................................,1 , _..._... ..;; ..';: :...................................•..........

CE IL IG V1$1rP1L1T' INJ STAILTr MILESif. GG GE 3 G GE LE GE GE GE GE C.E G E G GE GE GE

FLEI I 1 6 5 .4 2 112 2 1 1I/ 1 1/4 1 !/4 5/8 112 5/16 1/ Oi

10n CEIL 1 22.( 75.6 36.4 37.u 37. ! 7. 7 37.8 37.8 38.0 38.0 3R.1 38 . 1 38.1 38.2 38.2 38.3

,E 20CCC1 35. 6 !9. 39.9 4u.5 41.1 81.3 41.5 41.6 81.6 Al.7 41.7 81.7 41.8 81.8 83.9 82.0.-E I1SC Z01 3 S.8 E 9.2 4S.1 80.1 81.* 3 41.5 81 .7 A81.6 8 1.8 41 .9 61 . 9 .2 .0 82.0 82.0 82.1 42.20: 16".'I 36.0 19.5 80.3 81.u 81.6 81.8 82.0 82.1 42.1 82.1 82.2 82.2 82.3 42.3 82.8 82.8- 1, C8'a 35.9 4r4 4 1 . 81.9 82.5 82.7 82.9 83.0 83.7 83.0 41.1 83.1 83.2 83.2 83.2 83 *36E 1,L2I 3q.1 81.7 82.b 83.3 83.% 44.1 88.2 88.3 88.8 88.4 88.5 8#.5 88.5 88.6 88.6 88.7

r 10 VGC1 8.2 88. 88.9 85. 86.2 86.8 86.6 46.7 8t. .7 86.8 8f.9 86.9 86.9 87.0 87.0 87.1

.E 9CCC1 41.3 85.1 86.1 86.8 87.5 17.7 87.9 68. 0 8.1 46.1 8A.2 8,.2 88.3 48.3 88.3 88.8

*E r -1 , 8 7.5 4R.5 89.3 50.1 5C. 3 50.6 50.7 51.8 50.8 5".9 50.9 50.9 51.0 51.0 51.1(,E 7£ CI 48.6 '98.9 50.0 52,6 51.6 51.6 52.1 52.2 52.3 52.3 52.8 52.8 52. 52.5 52.5 52.6I.E L-, 4 E i . 51.5 52.8 53.2 S3.5 53.7 53 6 53.9 53.9 58.0 58.3 58.1 58.1 58.1 58.2

GE 5CiO! 52.6 5.6 56.9 57.8 58.7 59.1 59.3 59.5 59.5 59.5 59.6 59. 6 59.7 59.7 59.8 59.9

i.E 41 rC 54.8 (C.6 62.U 63.1 68.1 68.5 68.7 68.9 b.9 68.9 65.0 65.0 65.1 65.1 65.2 65.3OE 80co| 58.5 68.7 66.2 67.5 68.6 f9.1 69.8 69.5 69.6 69.6 68.7 69.7 69.8 69.8 69.8 70.0GE 351- 61.9 64.5 70.1 71.5 72.7 73. 73.6 73.7 73.8 73.8 73.9 73.9 73.9 78.0 78.0 78.1

.,E 32.00 1 66.1 73. 75.3 76.8 78.3 78.8 79.1 79.3 79.4 79.8 70.5 79.5 79.5 79.6 79.6 79.7

LE 2! LJ1 6,,.7 77.7 79.7 81.8 83.0 P3.u 83.9 88.2 84.3 88.8 88.8 88.5 98.5 88.6 88.6 88.7GE 2'01l 72.2 .0.7 83.0 @9.8 86.6 P7. 8 7.8 68.1 68.2 8 . 3 88.8 88.8 88.5 98.5 8 .6 88.TtE 1P.l 72.6 1.4 83.7 95.6 87.8 PE.2 88.7 89.1 89.1 89.2 89.3 89.3 89.8 89.8 89.8 89.6

G.E V.20 1 73.2 P2. 3 8.R 87.0 89.r 8.9 91.8 90.1 93.9 81.0 91.1 91.1 91.1 91.2 91.2 91.8' 10 1 73.7 43.1 85.6 P7.9 90.0 91.] 91.9 93.9 92.1 92.2 87.3 92.3 92.8 92.8 92.5 92.6

i.E 'C !1 7!.9 '3-5 86.,2 88.6 90.8 91.9 92.5 92.6 93.0 93.1 91.2 93.3 93.3 93.8 93.8 93.5GE 9.I 1 78.0 '3.7 86.8 8.8 91.C 2. 1 92.7 93.1 83 3 93.8 93.5 93.5 93.6 C3.6 93.7 93.8Ibr .r 784.1 P3.9 b6.6 89.1 93.s 9'. t 93.2 93.7 93.8 83.9 98.1 98.1 98.1 98.2 98.2 98.8

1,E 7, 1 78.1 8.1 86.9 S9.b 91.9 93.1 93.8 94.2 98.8 98.6 94.7 98.1 98.7 98.8 98.8 95.0

.E C:)1 74. j.2 87.c P9.b 92.1 93.8 98.1 98.7 98.9 95.0 91.1 95,2 95.2 95.3 95.3 95.5

k.E '%7I 78.2 '8,3 87.1 89.9 92.6" 8.1 95.0 95.7 96.c 96.1 96.3 96.3 96.3 96.8 96.5 96.6V, 8 . 78.3 P4.8 87.3 90.2 93.0 48.5 95.6 96.8 96.7 96.9 97.0 97.1 97.1 97.2 97.2 97.8

%. !.03 7.1 14.4 67. 9C.J 93.1 14.9 96.1 97.( 97.4 97.6 97.7 97.8 97.8 97.9 98.0 98.1I.E 70.1 78.3 p.8 87.8 90.3 -3.2 98.9 96.3 97.2 97.6 '8.0 9'.2 98.3 98.3 98.5 98.6 98.9GE 1A I 1.' '8. 87.8 0.3 3 . 7 4.9 S6.3 97.2 97.7 98.1 98.8 98.8 98.6 98.8 99.0 99.6

6E [I 78.7 '8.8 87.8 9G.3 9'.2 ,.9 96.1 97.2 87.7 98.1 93.8 98.5 99.7 98.8 99.1 100.0

..........................................................................................................................................

TOAL 1611P4nER OF OSEhVAIO'.3 744C.a L

L.IV.0tA. ELIPAlOLObV PR6NC PENELNIAEG FRf[LENE# OF OCEU8ENLE OF CtIL14, VERSUS VISIbILIITjSAFETAC ro FOUPLY OBSERVATIONS

A1t .FATHEP 1 rRVICE/0I'C

STATIE NUP'LR: 7,5287 STATICN NAME: NTAGARP FALLS IAP NV PELQO OF PECOPO: 71-86MO4dT: NOV POUR'SILSTI: 0000-0200

P, I L G E GE GE GE br r, GE G GE G GE GE E GE

F l~l I if 5 4 3 2 112 - 1 112 1 1/4 1 ?19 S/8 112 s 16 I1/4 a

tWl C[IL 176. 1:

2-1.1 2A.2 28.8 2q.3 ?9. c 29.7 29.9 33.C 30.2 3 f. 2 30.3 30.3 33.3 30.3 30.4 .

3, E[ 2:;fOr , 1 9.3 ZQ.4 30.0 30.6 X.e 30.9 31.1 31.2 31.4 31.4 31.6 31.6 !1.6 31.6 31.1

GE 18IC:1 27.Q ?q.3. -9.4 !0.0 3C.6 IcL6

30.9 31.1 31.2 91.4 31.9 31.6 31.6 31.6 31.6 31.7

, E I6CC ,, 27.' 3 29.9 70.1 30.. r0.6 3LX .1 31.1 31., '1., 51.4 31.6 31.6 31.6 31.6 31.7[ 14r o 2Q.1 r 9.6 29.7 ?c . 3,j.a 71. 6 31.1 31.3 31.,. 31.7 31 . 31.8 31.8 31.8 31.8 31.9

UE 12(Zr'I 29.1 '0.7 30.8 !1.3 31.9 72.1 32.2 32.4 32.6 12.6 72.8 32.9 32.9 !2.9 32.9 33.0

4 .E 1ir c 31.r '2.6 32.9 !3.4 34.rc !4.2 34.3 34.b 39. 7 34.9 3..9 35.0 35.0 35.0 35.0 35.1

b! 9'0C 3. 6 !3.c 3-1.9 ?4.4 5.,0 5. 2 35.7 35.6 35.7 35.9 3'.9 36.0 36.0 36.0 36.0 36.1u. acCC I 5.C '?.3 37.7 38.3 38.9 79.1 39.2 39.4 39.6 !9.A 39.8 39.9 39.9 Y9.9 39.9 N0.0.E 7'OCI !,.3 !d,7 39.0 39.7 40.2 4c.4 4 .6 0.p 40.9 1. 1 41.1 42.2 41.2 41.2 41.2 41.3

G E 6bfL1 37.C 39.4 39.8 '0.4 4 1.0 41.2 41.3 41.6 42. 7 41.9 41.9 NZ.0 42.0 42.0 42.0 42.1

GE .r ll 4?.? 45.6 45.9 46.6 47.1 47.3 47.4 47.7 47.8 48.0 4A.0 18,1 48.1 48.1 48.1 48.2[ 4! | 45.7 .3 S!.8 51.4 52.1 5Z.2 52.3 %2.b 52.7 S2.Y 57.9 53.0 53.0 53.0 5.0 53.1

E oL.CI N'.f, .4.1 54.6 55.2 55.8 56.0 56.1 56.3 56.4 S6.7 56.7 56.8 56.8 6.8 56.8 56.9tE 3'IL S?.? !9.L 59.6 60.3 6r.9 61.1 61.2 61.4 61.6 63.8 61.8 61.9 61.9 61.9 61.9 62.0

.E Y Cfl| 56.9 63.3 63.9 64.7 65.4 65. 65.4 66.C 66.1 f6.3 (&.3 66.4 66.4 66.4 66.4 66.6

6E 2r r' 61'. E9.3 7n.3 71.1 72.C 72.3 72.6 72.9 11.0 73.2 73.2 73.3 73.3 73.3 73.3 73.4(1E 2Lf I c7.P 77.c 78.7 79.9 80.9 P1.3 81.7 82.1 62.2 2.4 82.4 82.6 82.6 82.6 82.6 82.7

vt| I Ln I 69.0 7a.2 79.) 41.1 e2.1 '1.b 03.r p3. 4 3.6 A3.8 P!.8 83.9 83.9 P1.9 83.9 84.0

I.E - Lr 7,. .2 82.1 83.6 E4.7 h5.1 85.9 86.6 86.7 6.9 86.9 87.0 87.0 87.0 87.0 87.1

,E I'2.nl I 71. I I. 1 83.1 84.6 85.8 5b. , 87.2 88.C 8.1 88.3 88.3 88.4 88.4 '8.4 68.4 88.6

uE I 1( 71.3 P1.8 84.3 '6.3 1 7.6 8.1 89.2 90.0 9. 90. 3 90.4 90.6 90.6 90.6 90.6 90.7lE OuOL 71.4 P2.0 84.6 P6.6 87.8 8.3 89.4 90.2 91.3 90.6 9".7 90.d 90.8 90.8 90.8 9,.9

IE 9C01 71.4 P2.1 8q.9 7.0 68.2 ,.9 90.1 90.9 91.4 a 1 . 2 91.! 91.4 91.4 91.4 92.4 91.6ZIE 7Cn7 71.9 82.b 89.9 P8.1 89.1 50.1 s1.3 92.1 Y2.2 92.6 97.7 92.8 92.8 92.8 92.8 92.9

GE 6LO| 72. 3.4 86.7 99.0 9q.4 91.6 92.9 93.7 9J.p 04.1 94.2 94.3 94.3 94.3 94.3 94.4

ur ' 71 723 3.8 87.4 94.9 92.4 2.: 93,9 94.8 94.9 95.6 9S.7 95.8 98.8 95.8 95.8 95.9GE '.l 72 . 83.9 87.7 90.4 52.2 13,7 95.1 96.7 96.9 97.8 97.9 98.0 98.0 98.0 98.0 98.1I.E .0 1 77.2 73.v 87.7 90.6 72.3 3.8 95.7 97. L 97.3 98.6 90.7 98.8 9S.8 98.9 98.9 99.0

.E Z;r1 72.2 3.9 67.7 9U.6 92.3 '13.8 49.2 97.1 91.4 9.7 98.8 98.9 9 9

.0 99.1 99.2 99.3(IE ICil 72.2 P1.9 87.7 9J.6 97.3 '.3.8 95.' 97.1 971.4 Ok . 7 9f.q 98.9 99.0 99.2 99.1 99.4

l. tI 77. 13.9 87.7 90.6 92.3 13. k 95.2 97. 97.4 98.7 94.A 98.9 99.! 09.1 99.1 100.0

. ...........................................................................................................................

tI ALUMA R CF 0 WSERVA TI VJS: "00

7

L3{iA[ CLIPATOLOGY PRAtJCI PEhCENTAtiE FkEIUENCY OF OCCURRENCE OF CEILING VERSUS VISIBILITYSAFETAC FROM F-OU"LY OBSERVAIIONS

AIR wFATHEP SERVICE/H&C

STATION. NUPREP: 7257,7 STATIO NAME: NIAGIA FALLS ZAP 1.1 pERIOD OF RECORD: 77-86'ONI6: NOV POURsLSTI: 0300-0500

............................................................................................................................CEILIPG VIS1PILIIS IN STATUTE MILES

1% 1 G E0 GE GE GE GE ut GE OF G GE GE E GE GE GE GE

F TFEE I 17 & 4 3 2 112 2 1 112 1 1/4 1 31/ 5/8 1/2 ;/16 1/P 0

%, CElL .2,? 26.1 26.7 24.7 26.f 24.9 2 .9 25.2 253 75.3 25.6 25.6 25.6 25.6 25.6 26.1

2;?: _8°'oi 42 76.2 26.9 26.9 27.1 27.1 27.1 27.6 27.7 7.8 2A.0 28.0 28.0 28.0 [email protected] 28.66[ 18 U q .4.2 '8.2 26.9 26.9 27.Z 27.1 27.1 27.4 27.7 ?7.8 28.0 28.0 26.0 28.0 28.0 28-66F 1L, 29., 26.2 26.9 26.9 27.r 7 27.1 ,. 27.7 27.8 2p.o 28.0 28.0 28.0 28.0 28.6O.E *.6-j 21.7 2.. 26.9 2b.9 27.j 17.1 27.1 27.6 ,7.7 27.8 . 28.0 29.C 28.0 28.0 26.6LE I2: C 6.6 26.b 27.6 27.b 27.7 Z7.8 27.8 28.1 28.3 28.6 p2 -7 28.7 28.7 28.7 28.7 29.2

;,E 1 -.:c i 2(.9 79.2 30.C ?C.0 30.1 3C. 2 33.7 30.E 37.8 70.9 31.1 31.1 31.1 31.1 31.1 31.7f? 91cI 27.7 !3.1 3i .9 10.9 31.0 !1.1 31.1 31.6 31.7 '1.a 32.r 32.; 32.3 72.u 32.0 32.6

cr bt; I 2.1 '3.7 36.6 36. 6 3'. 44.6 36.9 35.1 i5.3 35.6 357.7 35.7 35.7 I5.7 35.7 36.2r 1 L 3'-2 !5. z 35.d 35.8 !5.9 ?c. 1 36.1 36.6 4 6 3b. !68 37.0 37.0 77.0 7.0 37.0 37.6

..E C' : 3.4 .b.3 37.2 37.2 37.3 37. b 37.6 37.9 38.1 38.2 3A.6 38.6 38.6 i8.6 38.6 39.0

,E 5! c1 39.. ( 2,t 92.9 43.2 63.9 6!.7 63.7 q46.C 64.2 66.3 66.6 66.6 66.6 6.6 66.6 65.1- E 4' fn 42.7 070 49.8 1 9.2 9.6 4.97 49.7 50.1 50.3 SC.4 S.8 50.S 5.9 KO.8 50.8 51.3E 4C7 46.1 !2. 53.3 53.8 56.L 4. 56.6 S4.9 55.1 15.2 5,.6 55.6 55.6 55.6 55.6 56.1Sc I-Q !116 '7.6 58.9 59.3 11.6 b'. bC.0 63.6 60.9 61.z 61.3 61.3 61.3 61.3 61.3 61.94r , 3i G (2.6 bq. 66.7 (64. 65.3 65.3 65.9 66.2 66.3 66.7 66.7 66.7 66.7 66.? 67.2

LE 2 .,l 1 3 59.9 71.2 71.8 72.6 ?. 73.V 73.6 73.9 76.C 76.3 76.3 76.3 76.3 76.3 76.9.E 2' A I 6. 16.6 79q.2" 79.2 609. 1 .7 b1 81a.1I 67.2 02. 1 87.6 92.6 87.6 02.4682.61 83.0

61. 1' 7.:1 ; 77.9 79.7 f2.7 61.6 1. d2. A.6 9 1 d3.4 6 3" 6!.9 83.9 63.9 '5.9 63.9 6%.6r. 1 . "..2 02.. 93.e A .2 !4. 685.6 66.1 b6.6 96.6 86.9 S6.9 86.9 86.9 86.9 87.6

7 1.21 91°' 22.2 63.1 P4.2 as.3 P6.1 86.9 97.6 87.9 98.0 80.3 88.3 88.3 86.3 88.3 88.9

-E 1' L2I 71." -1.9 83.8 85.1 86.2 .17.0 b7

.R 98.7 89.0 P9.2 89.6 89.6 87.6 99.6 89.6 90.1GE 'C; 72. 12..1 d3.9 85.2 86.3 F7.2 6.C 98.9 69.2 99.6 8Q.8 R9.8 89.8 89.8 89.8 90.3..E P CCI 73* 5.' 96.6 R5.d 67.1 '6.. 88Be.9 89.1 90 .3 El %.2 9f). 6 90.6 90.6 50D.6 90.6 91.1CE 7..' 73 .1 -2:9 85.1 56:6 78.2 1 iI 89.9 9.6. 1 91.3 51.7 91.7 91.7 : 1.7 917 92.2I.E( 11 72.1 -3.. 65.2 67.1 68.7 F9.9 9".5 92.C 92.3 92.6 91.0 93.1 93.1 93.1 93.1 93.7

oil 77.3 13.3 86.3 48.3 90.1 .6 9?.6 03. 7 96.0 96.3 99.A 96.9 96.9 9#.9 96.9 95.6LE 6031 72.6 3.7 66.7 88.7 9'.6 '.2°. 93.6 96.7 95.1 95.9 9604 96.6 96.6 p6.6 96.6 93.2,.E I(11 77.4 'S.? 66.7 c,.6 9.6 ;k.6 9.6 95.1 95.7 "6.6 97.2 97.3 97.3 97.3 97.6 98.0b0 2,r 72.6 F3.7 86. 98.9 9.7 52.b 96.3 96.F 96.9 97T. 90.7 98.8 98.8 06.8 98.9 99.6LE I1LPI 7?.6 '3.7 66.7 88.9 9. 7 92.6 1 *0 96.C 66.9 98.c 90.0 98.9 98.9 98.9 99.0 99.1

jr ii 71.6 9 3.7 86.7 A8.9 9M.7 92.8 94.3 96.C 96.9 9 .0 99.q 98.9 98.9 98.9 99.0 100.0

.. . ...................................................................................

TOTAL %JIPFr OF OSERVATIONS L0

6.J

L03AL CL]PAIOLOGY ARANCP PEkCINTAGI rPELUENC Or OCCUPPKC[ OF CELI% VFNSUS V1SIBILITYUSAFETCC FkOm FOUPLY V'SUQVAITONIAIR LAtH[R SERVICE[PAC

ST 61C11 NIJUM'L: 7152b7 STTIC% NAME: NIAGAP FALLs IAP NYs PE'IOU OF RECORD: 77-86

MPNTH: NO HOURSILSII: 0600-0600

*CEILI.C. V291r1L1T7 543 S18IUT7 MILLS

154 I G 3E GE Gr GE LE GE GE (I GE GE GE G( GE G GEFCT I r b 5 4 3 2 1/c 2 1 l/Z 1 1/8 1 '/4 518 1/2 /16 1/8 a

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;L2tAL CLImAT PLOGV Pk ANCH PENCE11AG FR(CUE NCY oF OCC1IR(•CL OF CEILI NG 8FSUS V IS|IL 7VLSAF[TAC FROM FOLPLY ObSERV0TIONS

A1 df AT1-Fr SlRvICE/MAC

S81 A10. tUPnE7: V52r1 SIl101 NAh: '- NIGA&L F ALLS IAP IY PEI00 Of PEORD: 77-86

MONTH: NOV HOURSILSTI: 18.jO-200C

SCEIL10:6 VISIFILIv 16 SxTICtr VILLSit I (7 or GE GE GE GE GE G( 6f CE 6 G E ( GE GE G7

SLL1 I r 5 4 3 ; 1/2 2 112 1 1/9 1 '1, 5/8 1/2 S/16 1/4 0

,O CEXL I 26.F .8. 29.1 79.2 29.3 ;S. 29.1 29.4 29.9 79.9 Z.9 29.9 29.4 79.4 29.6 29.6

tE ,CVOOI 29.2 '.9 31.6 31.7 31.8 71.9 31.9 31.9 31.9 11.9 31.9 31.9 31.9 !1.9 32.0 32.3,F' 18' CO1 21.6 C 1.: 11.9 32.0 32. 1 '2. z 32.Z 32.2 32.? 312. 2 3 ,. 32.2 32.2 12.2 32.3 32.3bE 10o' 29.6 '1.2 31.9 !Z.3 37.1 3i.2 37.2 32.2 57.2 32.2 32.2 32.2 32.2 !z.2 32.3 32.3fF *9LC 2;.7 '1.3 32.3 1-1 32.2 J2.3 2.3 32,. 32.3 12.1 37.3 32.3 32.3 32.3 32.9 32 .GE 12!01 3.' '2.9 33.1 13.Z 33.1 5".9 33.9 33.d 33.9 '3.9 31.9 33.9 33.9 13.4 33.6 33.b

Lr 1l(r co 32.3 " 1 9.6 39.9 35.L 35.1 35.1 35.1 35.1 35.1 39.1 35.1 35.2 1 5.1 35.2 35.2* E S;( 01 .i '5.f 35.7 '3.b 35.9 It. C 36.' 36., 3b.c !b.C 36.f 36 U 36.0 36.0 36.1 36.1

UE 9!2'li 39.1 r 6. 1 37.0 37.1 37.2 71.3 37.! 37.3 37. 37.3 37.3 37.3 37.3 37.3 37.9 37..GE 7i rr 1 39.4 'o. 37.7 37. 37.9 !-C 3q.1 38.C 38.0 I8.0 39.0 38.G 38.1 18.0 38.1 38.1: . 4 L I f f.3 !8.7 39.6 19.8 39.9 L.0 90.0 9C. L ".- IC.0 4r.0 90.0 90.0 90.0 9 0. 1 90.1

Lf 5,' 9.' 95.0 96.: 96.2 96.3 9b:4 46.:4 b:.9 .1 96.9 96.: 96.9 96.9 96.9 96.6 96.61! 9'C 91. .2.9 52.3 '2.3 52.9 .2.6 52 .6 52.6 2.6 5.6 52.6 52 6 2 57,. S2.1

-4 4-::1. 99.9 3.9 55.3 15. 3 55.6 S5.7 5.7 S5.7 !%.7 95.7 61.7 5S.7 55.7 5S.7 55.8 S5.6GE J!C .4 1;,9. 60.1 60.9 6f. 6.1L b1. 601 62.C 62.0 61. 61.0 61.0 61.0 611 61.1

Sr 110:I 57.7 1,3.C 9 65.0 6S.4 6.1 65.7 65.7 5.7 65.1 65.7 65.7 65.7 65.7 65.8 65.6

St 'c I f . 2 .0 70.6 13.3 71.8 .0 72., 7z.1 72.1 72.1 12.1 72.1 72.1 72.1 12.2 72.26C Lr'2 19.91 76.c 7V. ' 76.9 79.6 7.9 80.1 90.2 801.2 At.2 8'.2 83.2 9.2 P0.2 50.3 8o.3UE It 2 I 12.' 77 . 1 79.2 AC.3 81.r j1.3 81.6 91.7 61.7 A1.1 62. 81.7 81.1 P1.7 8l.8 81.8..r 11'3 1'.' 1.7 83.L 6q. 95.8 G. G 87.C 87.2 b7. 12 7.9% 8 87.9 81.9 1 1.9 87.6 A7.6.. I. Gr! 13. '7.0 69.6 76.2 61.7 li.9 as.9 A9.2 89q. A9.9 60. 09.9 69.9 99.9 89.6 89.6

LE I *'"I 7!.7 ?.7 85.3 P7.3 89. 0 9. b n.2 90p.1 9o.7 9(1.9 91.0 91.0 91.0 91. 91.2 91.1iC '11,|3.q al '. 85.6 A7.b a., . U ,.4 93.9 93.9 1.1 91.2 91.2 91.2 91.2 91.3 91.3:. aCI 79.1 r3.! 86.1 Rb.j I 9.9 ti. 9 91.1 91.9 91., n2.1 9'.2 92.2 92.7 92.2 97.3 92.3f(r To 71 74.3 13.6 86.9 88.9 V.6 .. o2 .% 91. 93 . 93.2 9'.3 93.3 93.3 93.3 93.4 93.9(If 6,01 .' j.7 86.6 88.6 9C.9 i. 9 ! .1 93.1 93.7 93.9 99.2 99.2 99.2 19.2 99.3 99.3

6E (3 79. f '1 61.1 89.4 91.9 3.6 99.? 9'.9 95.9 05.6 9.1 96.1 96.1 96.2 96.2 96.2I.E '.22 79.6 q4.3 87.6 t0.2 92. q . u 9r.9 91.3 91.2 1? .9 97.8 97.8 97.9 97,9 98.0 96.0.E Ice 1 74.4 p9.3 ..7.6 90.2 -2.0 '5. 9.1 97. 1 91.3 97.@ 90.2 98.2 98.3 9e.3 98.9 98.9

. 1f 7 I9. f- .3 d1.6 90.2 9?.9 ',1 96.0 91.9 97.7 18.3 94.6 98.8 99.9 98.9 99.1 99.1Ul1f 1.i 79.6 "J.3 7 . t i 0. 2 92.9 St. e 96.6 98. I 99 . S-,I.g 91.3 99.3 99.94 99.91 99.7 99.9

E. 'I 1 .( -9.3 61.7 60.2 Z V6 ; q616 98.3 98. 2 e.9 9n.3 99.3 99.9 99.6 99.8 100.0

TOTAL f.U092.7 OF 0 SrRVArfn34: Q 2(1

r ,imi ., - d a m •d n am m. ~m,,L

GLI.EL CLIPATOLOGY PRANC1 P8kcENTAGE FkrXrLNCY oF CCCL'VR"ECE OF CIL14G VERSUS VISIBILITYLSF6TVC FPO 8OULY OUSLVATIOtjS-AIR .4UA1113 SFRVICEI/AC

STATIO14 NUMLP: 7.Zt57 TAIIC NAML: PIVGAPt FALLS IAP NY PL1O0 OF RECORD: 77-66MONTH: NOV I-OUPSILSTI: 2100-2300

............................................................................................................................

E ICLIt., VISZPILITY IN STATUTF 1411S

1% Z L G" G£ GE 5E GE G L GE GL GL Gi E 6 E GE GE GE G[E

FILT I 6 8 9 3 2 112 1 112 1 1 9 1 q/ 'I S/8 1/2 b I6 1/ 0............................................................................................................................................

-0 CEIL 21.2 !0.2 11.9 !1.. '1.9 11.o 31.- 31.9 31.9 31.9 37.0 32.0 32.0 !2.0 32.2 32.2

r ?'0 12 3.z 31.7 !9.9 39.7 34.b 39.9 39.8 3q.8 34.B 34.q 39.9 39.9 39.9 35.1 35.1!'E 18' uGT 32.1 3. 1 33.8 ?9.6 39.9 !9.9 399 39. 9 39.9 '4,Q 39,0 35.0 35.0 35.0 35.2 35.24E I 3120 37.1 '3.1 33.h 39.. 3 4. 3.9 34,9 39.9 39.9 '9.9 35.C 35.C J5.0 35.0 35.2 3524E 19:,0 ?-.2 '3.2 33.9 39.7 39.9 15.0 35.1: 35.0 35.0 35. 3'.1 35.1 35.1 35.1 35.3 35.3,t I. r32 37.9 33.9 39.6 35.3 35.1 !5.7 35.7 35.7 35.7 35.7 35.9 35.8 35.8 '5.8 36.0 3b.0

Lr 10L3CI 9.3 75.9 31 36.9 37.1 37.2 37.2 37.2 37.2 17., 37.3 37.3 37.3 37.3 37.6 37.6i. 4'L-1 3..0 1.3 37.0 37.8 39.0 1.1 3P.1 38.1 39.1 '0.1 39.2 38.2 3R.2 8.2 39.9 38.9bE a -3" 5.' .7. 5 8.o !A8. 39.0 29. 1 31.1 39.1 39.1 39.1 3q.2 39.2 39.2 39.2 39.4 39.9*E 7'C 37.9 39.4 93.1 0.9 93.3 91.2 93.2 41.2 41.2 '41.2 93.3 91.3 91.3 1 1. 91.6 91.6iF b5C 4 ". 91.1 92.3 93.1 93.3 93. 4 ! 4 .4 93.9 93.9 9 .6 93.6 93.6 93.6 43.8 93.8

.E6 (0 9 1.! 95... 46.1 96.9 97.1 97.2 97. 97.2 97.2 97.2 97.3 97.3 97.3 97.3 97.6 17.6A6 9C,: 91.' 4'.' 50.9 91.7 51.9 !2.c 52.3 92.C 52.0 ?.C 52.1 52.1 52.1 52.1 52.3 52.3Lo 4. Z:: 03.6 !4. 58.9 55.8 56.0 6. 1 56.1 56. 1 56.3 -.6.1 56.2 56.2 56.2 6 .2 56.9 56.* ', ,--r ! 3.,q !7.9 5'.1 6o.1 (1.4 LL.. 63.6 6U.6 6.6 6C.6 63.7 60.7 60.7 63.7 60.9 60.9'E 3, L 1 17.4 62.2 63.7 69.9 65.1 65.3 6e 3 65.3 b5,3 65.3 6- 65. 65. 9 65.9 65.7 65.1

1'4 2r t0I E.6. 7G.7 72. 73.8 79.2 79.3 74.3 79.3 79.3 7.3 74.9 79.4 74.9 7.9 79.7 79.706G 2'0C7 7:. 3 -,ft.j a3. 91. q 2. f 2.8 8Z.3 P2. 9 82.9 921.9 81.2 83.0 83.0 03.0 83.2 83-2L0 I PC , 7. 79. al 81." 92.d 93.6 2. a8 b.9 93.9 83.9 '3.9 84.0 P4.0 89.0 0o.0 89.2 89.?

*L I '1,9 71.7 4. L 62.! 89.2 I'l.I "5.6 85.7 85.7 Vs.7 95.7 ;.8 85.b 85.8 85.8 86.0 86.0CC 1039 7,3 F 1.3 89.3 a 6.u 87.1 q7. 87.9 P7.9 67.9 P7.9 8P.3 88.0 88.0 08.0 88.? 88.2

, -Ic 1 17., '2.3 5.1 e7.3 A9R.7 '. 9 89.9 99.9 89.9 99.9 97.3 90.0 90.0 '0.0 90.2 90.2ur .7 3. ! '2.1p 85 .6 97.8 E 9. 1 )c. U 9"!.4 90.6 90.6 90.6 9,1.7 90.7 90.7 90.7 90.9 90.961 -r 73.3 *3. 91.6 89.1 q.9 '1.6 9 ".1 92. 1 92.1 qZ.3 9Z.2 92.2 92.? 92.2 92.9 92.9LE

7Q' 736 1:,9 66. 99,! 91, W "2.? 92.7 93.0 93.1 93.3 92*3 93.3 93.3 93.3 93,6 93.6

06 t T!1 73.6 3.1 87.2 go.1 91.1 12.k 93.3 93.e 93.9 93.9 99.1 99. 99.1 99,1 99.3 99.3

uE '2 7-.7? f3 .9 8 7. 7 90.9 -;2. 7 $s9. 9." 91-.8 96b.3 1 6.1 9f .9 96.94 96.90 96.9 96.7 9..r ..!e 73.9 ,14.2 8P.2 91.6 93.7 .9E! 9." q 97.6 97.8 97.8 9A.1 98.1 99.1 98.1 98.3 98.3

(,1 304 1 73.P 4. b8.2 %1.8 93 .q '1. 9'.? 37.9 9. 1 90.1 90.9 98.9 9B.9 98.4 99.8 98._r ,L 7. p 6.2 OR.2 91.6 91." '.1,* 97.2 97,9 99.! 9,3 98,7 98.7 99.7 98.7 99.0 99.1

14.1( I 7!.P "9.z 89.2 91.8 91."'t €.. 97.2 97.,9 99.3 91..9 90.9 98.9 98.9 '9.9 99.Z 99.6

oF . 7'. N 9. d8 a 91.9 81. q i '.1 97-? '7.9 9e .1 99 b.94 99 . c 99 .0L 99.1 99.? 99.7 100.0............................................................................................................................................

T0TAL NUJrKEP OF 0, 589813.: ** * * ** * * ** * * ** * * ** * * ** * * ** ** ** * * ** * * ** * * ** * * ** * * ** * * ** * * ** * * ** * * ** * * *L* .

EL )I AL CLIt'TAOLO i F6%82 F(-CI TALL rtu(.Ul(L of oCCUInw"..LF OF (FILING VERSUS VISIBILITYLs A61 rC RO, IICC OUiLY nl SLDVTIONS

AINs . [fH[F bfqslc[ A11/C

1TA31'!. PIU3 fr: S I5l S3TIICf NAME: 611 NAL6A A FALLS IA P ?:v PErIOD OF PCORO 77-86MONTH: NOV HOURSILSTi: ILL

.o...... .o . .. . .. . ., . ... . . .. . .., . .. . °. . .. .................... .o...... . . . . ... . ° . . . .. ...... .,. o . . .. .. .. . . . . . . . ...... . .. . .. ..e ., . . .. ..

CFIrL I VIsIr17Y IN SIATUIr M ILESI'. I GA 1 r bc I u[ E G 6L G I rL G E GE GE GE GE

FLIT I IC u 1 2l 2 Z 11/2 11/4 1 '/4 5/8 112 5/16 1/4 0.,,..,,,,....................................................,,,.,,,, ,,,,.,.,..............,o..................,......

.0 CLI I .1 26 2. 26 26.1 2f,.b 26.q 26.9 27.C 27. 27.1 27.1 27.1 27.1 27.2 27.3

'F -0'I .. 8 2 9. 14.2 29.4 24.6 29.6 29.7 29.8 19.9 29.9 29.9 29.9 29.9 30.0 30.1I P f. l l 2.7 -. 1 2. 79.3 i 3.c 7 29.' 29.6 e9.9 3O.C 3'.O 30.L 30.0 30.0 30.1 30.3

' C.3 3 29.L 29. . 4 ? 2,.6 29.9 3o.C 0.3 '0. 1 3^.2 30.2 30.2 10o2 30.2 30.4AEI 4LJ.I 2!..! , 29.6 '0.U 3.? 3L.4 3C2.4 33.5 30.6 3,.7 3P.7 10.7 31.7 !0.8 30.8 31.0'. 12 31 2'." '. 1 32., !11.3 31. '1.1 .9 31.9 31.9 12.0 32.0 32.1 32.1 32.1 32.1 32.3

!r7'9 1.' 2.1 32,, 13.4 1.7 '3. 8 33.F 33.9 34.0 'q.1 34.1 34.1 34.1 54.1 34.2 34.3

,F 'r 3!c 3 3. 4.3 34.6 .7 34.9 34.9 34.9 35.0 3S.0 35.0 35.0 !5.1 35.1 35.3Z ' I .3 '5.. 3 !.t 17.3 37.3 17.b 31 .5 37.6 37.7 37.8 37.8 37.8 37.8 37.8 37.9 38.0

S7'ct J ''.6 '7., 37.; 38.4 38.8 '6.4 '1.0? 39.1 3;.2 !9.2 3q.3 39.3 39.3 !9.3 39.3 39.5C' tc'I 24 .17 21.3 39 . 34.9 1. 2 4L .4 4 1.4 4j. 5 40.6 40.7 47 40. 7 40.1 40. 7 '..8 40c.9

S. .* r' '* q. .7 44q 'l7 44 t.7 s~ 45.1 44. c,2 q.,24. 452 5.3 q42.b !. 44.3 44. '4.4 4. 45.0 45.1 5. 4.2 S. 45.2 45.2 45.95.

'.1 4'.1 "-.6 ,7.5 44.9 49.6 t .C "t. . $C.3 50.4 5P .5 O.5 51.6 50.6 50.6 50.6 so.7 O.8, 4'h 4 ,. r1.1 52.:, 53.3 61.F 14.c 4 .1 54.2 54.3 44.3 54.4 59.4 54.4 S4.4 54.5 54.6

Ut 3'> I 4'.3 E5.C 57.2 8.1 5'.7 16.9 5.,- 19.1 59.2 '9.3 5.3 59.3 59.3 -9.q 59.4 59.6"E 11 fI . ..4 62.! 63.4 4.1 U4.4 £.4.5 64.7 64.8 64.8 64.9 64.9 64.9 64.9 65.0 65.1

,L . . 3 ' !. b4.5 69.9 7 r0l. 1; 71.3! 71.4 71.6 71.7 71.1 71.R 71.8 71.8 71.8 71.9 72.1LE LII , S.F 13.: 75. 77.7 71. L, 79. b 7?.9 Pa.1 I 0.2 PD.3 811.3 80.3 83.3 80.4 80.4 80.6A 1' I ' 7. 4 36.4 77.1 78.9 b'.3 I(.9 41.3 81.5 41.6 .7 61 .8 81.8 81.8 81.8 81.8 82.0*F lYI 16.11 '6 .6 79.d 91.9 b3.c 84. 5 F8.2 95.3 65.4 fs.s 96.6 8S.6 85.6 VS.7 85.7 85.9

7. 1E 1 8 1 .3 P3.6 .S t. 7 87.3 P71. 87.9 .7 87.9 9.9 87.9 88.0 88.0 P8.2

. t . 67.4 '2.4 8'.3 04.9 87.1 6.4 89.1 8'.5 89.7 94.a 91.0 90.0 93 .0 90.0 90,1 90.3f? .I [-. 79,1 62.5 A5.2 47.' nd.1 89.4 89.9 9G.1 -C.2 9'1.3 90.3 97.3 90.4 90.4 90.6

I f # 7.7 i9'. b *. . 05.. U9.1 '9.b 9Gc 90.9 91.1 91.3 91.9 93.5 91.5 91.5 91.6 91.8I.E 7,.- 1 (7, 79.1 83_. b.5 81.I L .b 91.5 92.C 92.Z '2.4 91.6 92.7 92.7 2.7 92.8 92.9

f ' .I I7. ̂ 3?., b3.7 .I p.4 9'. "1.3 92.3 92.,4 43.1 93.4 9'1.8 93.b 93.9 93.9 93.9 94.1

- - I 1) t.1 64.2 7 9.1, q.'. 9!.7 94. 4 94.7 95.3 94- .6 95.7 95.7 95. 7 95.8 9S.9AE "I 3 4 .. 41 1 1 .. , 'Sq.

9 95. 96.2 26.7 97.3 97 .4 97.4 97.5 97.5 97.1

6%.b rl 8.4 9.u . 95.4 96.5 9b. 97.5 40.1 98.2 98.3 98.3 98.4 98.6.6 2 .1 t;.I 2.3 h4.t. 8.4 91.% '-3.9 9,5.6 96.9 97.4 99.j 9q.7 98,8 98.9 99.0 99.1 99.3'r :." t '.1 ''.6 44.6 08.9 '8.' 4l 9, 9 , .'7,o -7.5 n8.3 9Q.9 99.1 99.2 99.3 99.9 99.8

1 9 6 . .3 k!.,. fb.4 91.4 4. 8, 9,.7 07.L 97.s 9A. 3 99.0 99.1 99.2 99.3 99.S 17.00

bI0lL 'Irv's 0' 57I' ,'A11C%. : 72.

L

ULOPAL CLIMAIT(LOGY 6RANCH PEHCENIAGE FkELUENCY OF UCCII89EKCE OF CEILING VFRSUS VISIILITYuSAFE1AC FkCM HOUPLY 0BSERV8ITGNS

AIR SEAIb-Ep SE8,JEIE"

.1STATI NLU'EP: 7; 2d7 SIAT1CN NAME: SIA66RI( FALLS IAP NY PC9I0O OF PECORO: 77-86MONTF-: DEC I-OURSILSTI: 0C00-0200

CEIL 1 ,6 VISIVILITY IN STATUTE MILES

r E GE GE G G I GE GE GE GE GE GE GE GE GE GE GEFEL I I~ 6r 4 3 2 1/2 2 1 112 1 1/4 1 3/4 5/6 112 5/16 1/9 0

NO CEIL 1 21.? '3.8 29.0 2'4.1 24.4 24.5 24.6 24.7 24.7 ?4.7 24.7 24.7 24.7 24.7 24.8 24.8

f5 , 11.LU 22.2 P4.9 25.2 25.3 Z5.6 25.7 25, . t 25.9 Z5.9 25.9 25.9 25.9 25.9 25.9 26.0 26.0

FE I0cc) 22, 25.1 25.3 25.4 25.7 2 . 8 25.9 76. U 26.0 26.0 26 .V 26.0 26.0 26.0 26.1 26.1SE 1 6[C 1 22.3 5.1 25.3 25.4 25.7 25.8 2.9 26.C 26.C 26.0 C 6.7 26.0 26 0 26.0 26.1 26.1.,F 14' 1 22.7 '.3 25, 75. 2.9 ?1.u 26.1 26.2 26.2 26.2 26.2 26.2 26.7 26.2 26.3 26.3UE 12 2 ; S.b 26.0 26.1 26.5 ?L.f 26.7 26.8 26.0 26.B 26.8 26.8 26.8 26.6 26.9 26.9

,r 17)rCO 35.1 28.1 28.3 28.4 2A.7 26.8 28.9 29. 29.C 24.0 29.0 29.0 /9.0 29.0 2Q.1 29.1.E 9f' L- .7 29.7 29 9 29.0 29.4 29.5 29.6 29.7 29.7 29.7 29.7 29.7 29 7 29.7 2.8 29.8

IE ' 0 27 3j :.3 3C.5 30.6 31.0 71.1 31.2 31.3 31.3 !1.3 31.3 31.3 31.3 71 3 31,9 31.4CE 7%2 z7.' l:.5 37. !C.9 31.2 71.3 31.4 31.5 31.5 31.5 31.5 31.5 31.6 !1.6 31.7 31.13E (' L(;I 29.7 '1.9 32.2 '2.3 37.6 !2 7 3, 12. 32.9 2.9 32.9 32.9 33,

0 30 33.1 33.1

GE ,( I 31.r '4.5 34.8 '4.9 3t.4 3. 6 35.7 35.8 35.8 35.8 31.9 35.8 35.9 95.9 36.0 36.0[ 4' r 34 .7 19.0 39.6 39.7 4 0. 4U.3 40.4 40. 5 4.5 40.5 411.S 40.5 40.6 40.6 40.8 40.8

GE 4!JCI 37. v 41.5 41.1 42.8 43.2 43.4 43.5 43. 7 43.7 43.7 43.7 43.7 43.8 93.8 43.9 3 .9LF 3r'.l 41.1 46.3 47.3 47.4 48.0 4b.4 4.6 498.7 48.7 48.7 49.7 48.7 48.8 48.8 48.9 48.9

GE 13C 495.7 5L.9 52.2 52.4 52.9 "3.4 53.7 53.8 a 3 -3. @8 51.8 53.8 53.9 53.9 54.

0 54.0

GF 2h1XI 57." 7.0 58.8 59.9 6c.1 6t.6 61.1 61.2 ,1.2 61.2 61.2 61.2 61.3 61.3 61.4 61.4GE r 9 r,. S,. r '5,5 69.0 70.4 71.6 7;.4 73.1 73.2 73.2 73., 73.2 73.2 71.3 73.3 73.9

73.1

GE 1, .- I 9.6 b.4 7t.5 73.c 7.Z 715.1 75.4 75.4 15.9 75.9 7S.9 75.9 76.0 7b.0 76.1 76.1uE lrLCI (2.2 '2.9 75.4 78.3 79.8 Pu.5 81.4 41.6 81.6 P1.6 81.6 81.6 81.7 81.7 81.8 81.8E,[ 12 GO (,1.4 74.9 78.1) 8C.2 P2.2 89. 1 84.1 P4.4 64.4 4 .4 84-4 84.4 84.5 P4.5 89.6 89.6

1,f I"lUI 6!.? 75.7 78.9 l.4 83.7 Pa.b 85.6 85.9 85.9 R5.9 86.0 86.C 86.1 P6.1 86.2 86.2,E .'9I '3.P 15.b 79.' A I.5 47.8 p4.9 8.9 86.2 86.2 06.2 86.3 96.3 96.5 46.5 86.6 66.6UE "211E I'.P 75.8 79.L 81.7 84.1 . 6 86.8 P 7. 87.2 '7.3 97.5 87.6 87.7 P7.7 87.8 87.8,. ' 6 4.2 76.5 79.8 62.6 45.4 "7. 1 89.7 9.2 89.5 Mg.7 9".O 90.1 90.2 90.2 90.3 90.3.,E c 4E9.2 75.6 79.9 P2.8 9.8 7.6 a7.4 90.u 90.3 90.9 91.9 91 91.6 91.6 91.7 91.

t.'3 76.9 80.2 P3.1 P6.1 '8.1 89.9 91.1 91.5 92.4 91.3 03.5 93.8 91.8 94.0 99.0E '.0 54.' 37.1 8C.4 '3.3 86.3 6 .3 80.4 91.6 92.2 93.0 ?8.3 94.5 99.8 99.8 95.2 95.1

, 'L- c 4.6 77.2 8 .5 P3.5 66.6 "P.7 91.3 72.7 9!.! 94.3 95.6 95.9 96.2 96.2 96.7 96.7.7 tf0 6.6 77.2 82.5 P3.5 66.8 96.7 91.3 92.7 93.5 94.5 91.1 96.7 97.1 97.9 98.0 98.1', L-,2 0. 77.i 4ns P3.5 46.6 k4.7 91.1 92.7 9!.7 '4.. 97.0 97.6 98.2 98.6 99.1 99.4

(,E r' (,9.6 71.2 81.5 83.5 86.6 96.7 1.! 92.7 V3.7 q.9 91.0 97.6 98.3 8.7 99.5 IC0.0

............................................................................................................................

TOTAL 14UMbLq orF Wl5r6JATIONS: 030

I|I

AiL6AL CLIMRICLO,Y 37RANCH PE..CL!IlAoE rS(EQUENCY OF UCCURp'Et:CE OF CVILING VrRSUS VISIBILITYJSAFITAC FROM IOUPLY

Alp' .IATH7L SFRVICE,1781

STATION NUM'.LP: 725787 5783304N NAPE: 14AGAA FILLS TAP' NY P(8100 or' RECOPO: 77-86M0916- ('(C 6-00RS(LST) 3300-0500

YEILI'.o *SLrIIT 16*I, S*ATUl F MILESU 0. OL GE f, GE a4 r L GF GL C5. GE L (b GE Gt GE G E

FEELT I c' 5 9 3 2 J/2 " 1i 1 I 1 /4 1 '/4 5/8 112 S/lIb 1/4 0.................................................................................................................................

NO0 C'IIL I I .a c22. ' 2. 22.5 22.5 72.b 22.6 22.6 22.b 22.6 22.6 22.6 22.7 '2.7 22.7 22.8

.(E co 1I . 1.4 ;5.5 24.1, 24- 4.u ;!.0 2..t 24.1 24. 1 4 . 1 24.1 24.1 24 .1 24.2 24.2 24.2 24.3OE It! uc I ,.( -,4.c .4.4 24.4 -14.4 *4- .4 .9 214.3 5 4.5 '4.5 24.5 24.5 24.6 24.6 24.6 24 .?

~~~~~~~~ 11-!2. 4( 2. 44 44 "4 2. 49 2* 24.5 24.5 24.6 24.6 24.6 24.7.1E 141117 Zl.' '4.1 24.5 241.5 24.5 24.$ 14. b4. 24.6 24.6 24.6 24.6 24.7 24. 7 24.7 24.8t 11 I Z 27* 1 7,4.4 14.9 24. ip 4.9 2'. 21.2 2..2 29.2 75 .2 245.2 25.2 25.3 25.3 25.3 25-41

L0r1 I".p J 2S. P ,b. 1 26.7 2b.7I 26.Y ,6.b 26.a. 16. - 26.9 26.9 26.9 26.9 27.0 27.0 27.0 27.1t.E 9 c' 24. 1 ba 27.1 27.1 7 .1 Z7. a 27.3 27. 3 27.3 1'7. 3 27. 3 27.3 27.4 27.4 27.4 27.5,,E 8111 . '77 28.3 28.3 2.. 3 7..4 ill.s ?8. 5 8.5 ?8.5 2' .5 28.5 28.6 ?8.b 20.6 26 .1,,r 7r , I ,. 1L.5 2 9. 2 9 L, 2q.07 .241 29.1 79.21 213.2 29.2 2C..2 79.2 29.4 29.4 29.4 29.5

UE 7' ZU01 37 1 '.3 34.4 N ... 341.4 34. 5 34 .6 34. 6 34.6 54.6 34.6 34 .6 340 . 7 34.27 34.7 34.8L.E 4'ror 3S1 ' m. 9.1 4 j.6 40o.u 4 f. 6 '.h 4:i.9 43. v 41.9 .40.9 4 1.-9 40.4 41.0 41.0 41.0 41 .1i.E 4 'or. 3".Z QS.C 4 3.7 43.F 4 3. 7 43.6 t 473.% 4 3. 9 43.9 413.9 43.9 43.9 44.0 44.0 44.0 44 .1

'r -7 'r 4 .9 asj. I 4O.1 49.0 4Q.? 49.4 49.1, tg 149. S 49.9 4. 4..5 49.5 49.6 49.6 49.6 49 .7~E 3-CJ 1 49.. 12.L 5 3.1. S3. h 44.0 r4. 1 54.2" 1,4.4 54.4 54 .4 54.4 54.4 54.5 44.5 54.5 54.7

LE Z 1. 51. ~92 81.2 b1r s22 6.Z:2 '. 62: 62.9' Z 1 62.9 6 2. 62.S 62.:6 62.:6 62.:6 62.57. (7. 6.8 7A . 1.c 71.#16 724 72.7 72.7 72.8 724 72.8 72.9 72.9 72.9 7 3.:1

G.E 1'[.l '9.4 ~. 113.4 72. 1 7 3 .7 73. 9 7.4. 74. 1 74. 7 74 .4O 74.8 741.8 74.9 74.9 74..9 75.21, '' 631. p 72.8 76 .5 78. 1 73.2 79.6i 4.11 91.6 41.6 01.7 81 .7 81.7 C1.8 R41.9 83.9 82.2IE 1 6(' 5!. t 74.9 740.6 8.1.5 E 1.48 -~. 4 h'.1 q4.3 64.3 '4.4 414.4 R44.4 84.5 P44.7? 84.7 P44.9

A 7u. t64 .1I 76.L 79.9 41 .8 0 1.2 !,4.L 89 .6 Q6.1 46.0 9746* 1 86. 1 66.1 86.2 '6.5 86.5 46.7' xi fU ra. o 76.7 80.7 92 .7 P.4 .2 !4.'.q 6.'t '61. 1 o.7.1 97.i 47.2 47.2 87. 3 47.5 87.5 87.7C -. 1 E4.7 '9 V.9 1 80.9 L. % 4.'- "S.9 84.' r 8.5 84.6 -8.8 39.8 88.8 84.9 $19. 1 89.1 89.-4

uc . (. 4. 7 I7. 1 51 .; P3.'. 89.7 rE. 9 69.9 99.9 69.6 49.6 89.9 99.9 90.0 90 .2 90.2 90.4"t 'LC 1C4. ' 1'7.1 81.1 A%4. Z 66.2 - . 1 o '.q 90. 3 911.4 905.6 93.0 91.0 91.3 91.3 91.3 91.5

If ;rj t.4. 7 77.2 83I.! 3 4m.5 b61.3I P. 5 1 .' 339.9 02 .3 92.4 9'.4 93 .40 93.5 93.8 93.8 94.074. 6,- 4 6. 77.21 81.4 '40.6 E7. 4 b9& 91 .9 92.3 9 93.4 a.3 94.9 94.9 94.1 qS5.3 95.3 95.56f (4. 69. '7.1 83 1.4 P's.6b 8 7.6 S .4 9 3... 9# 9. 2 95.2 91.8 95.8 96.1 96.6 96.6 96.8U.5 C~ (4.6P 77. 3 831.4 S5.1 67.( p".9 . 7 '.3. 94.7 05.8 91.9 96.9 97.2 98.3 94.3 98.6

E5 1 if..p 77. 3 813.4 AS.I 571.6 f 9. 9'.I 94.c 94.'. 36.3 9 7.4 97.5 98.0 98.9 99.1 99.7

f5 '73 p4. 77. 3 81.4 05.3 A 477. f 99. 9. P 94.r 94.9 .6. 1 %,7.5 97.5 98.0 98.9 99.4 100.0

TOTAL. . . . . . . . . .

508.IO7"(16 7vt(., 33

- .

6L3 ,AL CLTMATnLUCY kHANJCH PEkCLNYAb[ fEELUENCY C; OCCtINPENCE OF CILIfJG VVFRSUS VISILILITY

USAFEIAC FROM lOUPLY OoSLRUAT1ONSAlP WEAIWEO SERVICE/'AC

sTATION NUMILR : 725267 STATION NAME: NIAGARA FALLS TAP %V PEVIOD OF RECORD: 77-86

MCNIF: DEC I-OURsILSTI: 06U0-0800• ,,,,.° .., ..............., .........o .............. .,, ....................... ,.,.....o....,..,.,.,.................,.o....,.

LEILI VISIPILITy IN STATUTF MILES

Ir I CE GF GE GL rE EE GE GF UL GE G GE GE GE GE GEFEEl I 12 6 5 ' 3 2 1/2 1 1 1/2 1 1/4 1 !/4 5/8 1/2 C/16 1/4 0

NrO CEIL 1 17.4 19.1 19.7 19.0 3.3 2r.3 20.3 20.3 22.3 20.3 22.3 20.3 20.3 20.3 20.6 20.4

.0 2r[% 22.9 --. 8 21.3 21.4 1 ..9 219 21.9 21.9 21.9 21.9 21.9 21.9 21.9 21.9 22.0 22.0C le'L,0l 1g.- 21.1 21.6 21.7 22.3 22.3 22.3 22.3 22.3 22.3 27.3 22.3 22.3 22.3 22.6 22.6UE 16-C1l 19.

1 21.1 21.b 21.7 22.3 22.3 22.3 22.3 22.3 ?2.3 27.3 22.3 22.3 22.3 22.6 22.6

14 1L6'I 1.2 21.5 22.J 22.2 22.7 :2. 7 22.7 ?2. 222, 7 22.7 22.7 22.7 22.7 22.7 22.8 22.8

LE I2LCr I 1. o 22. 22.9 23.0 21.5 23.5 23.n 23.h 23.5 23.5 23.5 23.5 23.5 23.5 23.7 23.7

* (crccI z1.2 23.8 26.3 26.5 25.1 25.1 25.1 25.2 25.2 25.2 2,.2 25.2 25.2 25.2 25.3 25.GE 9 lI 1.P 24.7 25.6 25.6 26.1 26.1 26.1 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.3 26.5

* !.,E 8*ung 2.*. 7.3 28.! 28.3 28.8 28.8 29.8 29.L 29.0 79.0 20.0 29.0 29.0 29.0 29.1 29.2

6E 7!' G1 26.9 18. 29.1 29.6 29.9 29.9 20." 30.2 30.2 30.2 3n.2 30.2 30.2 30.2 30.3 30.6

N.F 6L0CI -., 29. L 9.9 30. 1 3,.5 30. Y .5 33.9 33. .3 0.9 3P~q 30.9 30.9 30.9 31.0 31.1

C:i 2 .1 '2.C !2 .9 .1 33.1 13.6 33.8 34.1 34.1 36.1 36.1 36.1 34.1 36.1 36.2 36.3GF 4 l !. 1 8.3 39.1 !9.69 Q.6( ,L.C 41-.0 60.3 %0.3 60.3 9fl*3 60.3 60.3 60.3 60.6 60.5L, F6Cc 3.'1 63.6 61.S 12.0 4?.F 2.8 42.8 63.1 43.1 63. 1 4 ,! 3.1 63.1 63.1 63.2 63.3

UF 3...;l IP.0 63.9 5,.2 66.8 66.6 6.6 66.7 47.U 67.0 67.0 67.0 67.0 67.0 67.0 6?.1 67.2

UE 31.., 41.1 7.6 66.8 69.6 63.5 90.5 5 r 6 51.Z 51.0 91.0 51.0 51.0 51.0 51.0 61.1 51.2

[ I 5.2 .? 56.2 57.6 59.8 !.8 5-.9 99.2 59.2 59.2 59.2 59.2 59.2 S9.2 69.6 59.56E 2CC. 2 I .1 61.9 66.6 66.2 t(. L 66.1 68. 69.2 69.0 69.0 69.1 69.1 69.1 69.1 69.2 69.6IfE IP.,I 1. 3 (13.5 65.3 be8. 2 69.7 (11.8 V! .2 70.a 70.4 7C.8 77.9 70.9 70.9 70.9 71.0 71 .14E I 32I 57.2 1 9.5 72.0 76.1 76.3 7t.E 77.3 78.1 7d.2 78.5 79.6 78.6 78.6 78.6 78.7 78.8

I., 12.A6 1?.' 71.4 75.1 77.3 r,.3 AL.b 81.8 82.1 82.9 93.3 81.7 83.7 83.7 83.9 8.0 86.1

.E 1, C.0 1 1 73.5 77.! 79.6 82.6 83. 1 6.6 85.6 65.9 P6.3 *6.7 86.7 86.7 P6.9 87.0 87.1uE ' ' 1'.4 74.2 79.1 RE.3 63.3 93.9 P.2 86,3 66.6 p7.1 97.6 87.6 87.6 87.6 87.7 87.8CE 8!l 5 . 76.3 7e. 0.,0 b3.9 8.5 66,.1 97.6 87.6 PR. 3 8.9 89.0 89 . 99.2 89.6 89.5SE 7L-1 ', 2 76.6 79.9 l.J P4.2 tS. 2 86 .7 R88. I c.6 P9.2 93.2 90.1 90.1 q0.3 90.5 90.6.,r ( 1 .5 7 . S 78.6 R1.I 86.6 86.6 87.c 68.b 89.1 90.L 9,. ' 91.0 91.C 91.2 91.6 91.6

i.E l 'n t ,. 76.b 78.9 81.6 h6.7 8S.9 87.7 89. 5 90.1 1,.3 9,.2 92.4 92. 92.6 92.8 92.9V, C S201 5.6 76.9 79.2 81.9 85.6 F6.6. b .9 91.2 92. r 93.3 94.6 q.7 96.7 96.9 95.2 95.3L£ '001 5.6 5 . 79.2 -2.3 F65 . '7.2 89.7 92.2 93.1 16. 9.8 96.1 96.1 '6.3 96.6 96.7

*6 . .,2 I'6 74.9 79.2 p2.3 d5.9 F7.9, 9r., 92.9 .2 IS.7 97.6 97.8 97.8 98.2 98.5 96.6

LE 11 S.6 79.6 79.e P2.3 h5.9 e7, 7. ,2. 93.L 96. q6.6 9-.O 98.5 98.6 98.9 99.6 99.8

09 3 .. 76.9 79.2 02.3 F 9 F7. S 927.' 9£3. L 964.6 '6.0 99.1 98.5 98.6 98.9 99.6 100.0

IOIAL RtIMIF9 CF Of SF10VATION' '£

~L

iK

GLL tAL CLIMATOLOGY 8RANCF PL.CENTAGE FREQUENCY OF OCCURPENCE OF CEILING VERSUS VISIBILITYLSAFETA

C FROM HOURLY ObS[RVATIONS

AIR wEATI6R SERVICE/PAC

5191I0N NUP'LR: 7?5267 STATION NAME: NIAGARA FALLS TAP Ny PEPIOD OF RECORD: 77-86MONTH: DEC HOURSILSTI: 0900-11

0 0

CEILI"U VISIBILITY IN STATUTE MILESII I GL GE GE bE GE GE GE GE GE GE rE GE GE G[ GE GE

Frui I 1c 5 9 3 2 112 2 1 112 1 1/4 1 /4 5/8 1#2 5/16 u4 0

NO CErL I 5. 17.' 17.6 17.6 17.7 17.h 17.8 17.6 17.8 17.8 17.8 17.8 17.8 17.8 17.8 18.2

,,E Z LCO 1. 1 2-. 1 2G.4 2C. 7(.5 0.6 it.b 20,t 2r.6 20.6 2C.6 20.6 20.6 20.6 2r.8 21.1f.E 101,1 10.9 2.9 23.8 21.6 20.9 21. L 21 :U 21:0 21. 71.1 21.0 ZI . 21.0 21.0 21., 21.4GE 16'2"I 17.7 . 21.1 21.1 21.2 21.3 21.3 21.3 21.3 21.3 23.3 21. 3 213 21.3 21.9 21.7

5E 14'LOI 1.1 21.3 21.6 21.6 21.7 21.8 21.9 21.6 2 1. ?1.6 21.8 21.8 21.8 21.8 21.9 22.3

1E I G'uI 2 .1 .2.3 22.7 22.7 22.9 23. u 2.c' 23. C 23.0 23.0 23.0 23.L 23.0 23.0 23.1 23.4

E 11-13 22.2 2.3 24.7 29.7 29.9 5.1 25.3 2S.3 25.3 25.3 25.3 25.3 25.3 25.3 25.9 25.76E "[7c: 23.1 25.9 26.0 26.1 26.5 2(. b 26.F 26.8 26.8 26.8 26.8 26.8 26.8 26.8 26.9 27.2LE 8' L 2C .2 28.1 29.o 29.' 29.8 2S.9 30.1 30.1 30.1 3D.1 3n.1 30.1 30.1 !0.1 30.2 30.5UE PL 2 1 26.5 29.5 3.9 31.1 31.b 31. 7 31.9 31.y 31.9 71.9 31.9 31.9 31.9 31.9 32.0 32.9

E 6f1 01 27.0 7C.5 31.S 31.7 32.3 32. N 32.6 32.6 32.6 42.6 37.6 32.6 32.6 32.6 32.7 33.0

E ".CII 2 .' '3.5 39.( 39.8 35.4 !5.5 35.7 35.7 357 35.7 35.7 35.7 35.7 35.7 35.8 36.1UE 4, (:7 3: 6 15.5 36.i 37.0 38.0 76.1 38.5 34.5 38.5 3F.5 39.6 38.6 38.6 38.6 38.7 39.0(' F 90c0 37.? '7.3 38.7 39.2 9). 4(G.9 94.3 90.9 91.0 1.0 93.1 91.1 92.1 41.1 91.2 91.5Gr 3-'07I !9. . 913.9 91.0 92.C 92.2 92.0 42. 9 93.0 93.1 97.2 93.2 93.2 93.2 93.3 43.7

S3f f!1 36..1 43.U 99.7 95.8 7. ' 47.5 9R.3 48.3 . 0 9.5 98.6 98.6 48.6 98.6 98.2 99.0

u[ 21.L I .4 '49.6 52.5 59.b 56.2 Lc.h 57.! 57.5 57.6 57. 7 59.0 58.0 58.0 18.0 58.1 s8.9GE 2! .)1 45.4 77.1 6C.8 63.5 66.1 66.9 6p.2 68.9 68.5 68.7 69.9 68.9 68.9 (8.9 69.0 69.9GE I :;11 9c.7 ? 9.2 62.9 66.2 69.2 7. C 7 1 7! 71.5 71.6 71.8 72.0 72.0 72.0 72.0 72.2 72.S'A I' 10 1 44.5 62.7 67.1 71.5 75.5 76.3 7q.1 78.5 78.7 79.1 7 .O 79.9 79.9 79.4 79.5 79.8

A6 122I .C 61.3 67.8 72.6 76.9 78. 1 79.9 90.5 .. 8 61.3 81.8 82.9 82.0 P2.0 82.2 82.5

GE 1 1.01 43.4 69.9 69.9 79.4 7Q.1 L.9 82.9 83.L b3.3 q.1 89.p 8.9 8S.1 R5.1 85.2 85.5GE -"! 99.6 69.7 69.9 74.9 79.8 '1.2 8!.2 83.9 89.3 -5. 1 85.9 85.9 86.0 P6.1 86.2 86.6

iE 'LII 97.7 65.3 73.9 75.9 81.2 P3.C 85.2 86.C 66.6 87.5 89.7 88.8 89.0 A9.1 89.2 89.6,E 7G0I 4. A 65.5 70.6 76.1 81.5 P3.3 85.8 96.9 87.9 A8.6 91'* 90.3 90.5 90.6 90.8 91.9(A t- 1 99.9, f5.7 71.^ 76.5 82.0 P4.1 86.7 97.7 88.s 69.7 91.3 91.7 92.S 92.6 92.8 93.9

GE '..3 49.F 6S.8 71.1 76.8 8 Z.S 'F. 7 87.', 88.6 49.6 90.9 93. 0 93.9 994. 99.7 9S.3 96.0U. 9..0l 9q.9 65.8 71.1 77.1 93. 20.3 8p.3 99.9 90.9 91.9 99.3 99.9 Q6.2 96.7 97.2 98.0GE "n1 3.8 P 6E5.8 71.1 77.2 83.1 F!.6 an9.7 90. 91.5 63.0 9%.4 96.1 97.5 98.1 98.6 99.9. 201 49.8 65,. 71.1 77., 83.1 8.6 89.9 90. 81.7 93.2 95.6 96.3 97.7 98.3 9R.9 99.7

.0 1.1 99.F 63b 71.1 77.: 3.1 F5.6 8P.3 90.9 2. 7 93.2 95.6 96.3 97.7 98.9 99.0 99.8

GE 4I 91.f 65.8 71.1 77.2 83.1 -0.6 84.9 90.9 *1.7 ".2 95.6 96.3 97.7 98.9 99.1 100.0

TOT41 11JMr6r OF 01S0RVAIION5: 93 !"

3L'.uAL CLImAICLOG'V 2F8NCH P[kCPJTAG0 F'E.UENCY OF OCCUPPENCE UF CEILING VERSUS VISIBILITYLsAFLTAC FROM FOU'LY 0USFPVAITONSAT#' 6fATFFP SERV]CE/MAC

$1IIN l H :7 7STATIOC;NeM:tXGR AL A PLPIOD OF PECORD: 77-86

MONIM: DEC HOURStLSTI: 120D-140C

CEILI:G" VISIFILITY I N SIATUTF MILUS

Ir, I oL G' GE bE GE GE GE GE GL GE GE GO GE GE GE GEFEET I Ir c 5 4 3 2 112 2 1 1/2 1 1/4 1 '/4 518 112 5/lb 11 0.. ... . . . . .. . . . . .. . . . . .. . . . ....... ° e .' . . . ... .... ' . ... .. .. ... . . . . . .. . . . . ......°. . ' ° ' . . .. ..... ...

NC LLIL I 17.6 18.2 184. 18.8 18.5 11.b 18.7 18.7 1,.7 18.7 IP.7 18.7 18.7 18.7 18.7 18.7

GE 2croul 2 1. 21.2 21.3 21.3 21.4 21.6 21.7 21.7 21.7 21.7 21.7 21.7 21.7 21.7 21.7 21.7GE i 'C2I 20.4 21.3 21.4 21.8 21.5 21.7 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8 21.8SI,: Ll .I Z.6 71.5 21.6 21. 21 .7 21.V 22.P 22.0C 22.C 22.0 22.0 22.0 22.0 22.0 22.0 22.0

bE 18401 I 21.7 -2.0 22.2 22.2 22.3 22.5 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.66E I'Uo 22. 3.8 23.5 23.5 23.7 23.9 28.0 24.C Z8.0 24.0 28.0 28.0 28.0 28.0 28.0 24.G

uE 1o3cGI 28.1 25. 25.5 25.6 25.7 ' .9 26.r 26.0 26.0 26. 26.0 26.0 26.0 26.0 26.0 26.0GF 9 rZoO 2 26.1 26.6 26.7 26.A 27. 1 27.1 21.1 27.1 27.1 27.1 27.1 27.1 27.1 27.1 27.1JE 8:-CO I 27.P P9.5 20.9 30.0 30-1 3U.3 30.4 10.8 30.8 3D.4 31.8 30.8 33.8 30.8 30.8 30.4GE 7 L:1 21.4 '.2 30.6 10.9 31.0 31.z 31.3 31.3 31.3 11.3 31.3 31.3 31.3 31.3 31.3 31.3't tTCL 28.7 ! .b 31.1 31.3 31.8 71.6 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7 31.7

(,E -I0Of 31.1 !3.5 38.1 !8.8 38.6 28.8 38.9 38.8 38.9 38.9 38.9 38.9 38.9 38.9 38.9 38.9(,E 4 32.8 '5.8 366 ?6.9 37.3 37.5 37.6 37.3 37.7 '7.7 37.7 37.7 37.7 37.7 37.7 37.7.E 4 L(CI 38.' ?7.7 38.7 !9.5 4C.1 IU.4 8 8.8 4C.9 80.9 80.9 80.9 80.9 80.9 80.9 80.9 80.9

LIE 3'%r 3 7.° 8.8 81.9 02.7 83.4 83.6 88.2 88.3 88.3 '4.3 1.3 88.3 88.3 88.3 88.3 84.3bE 3T0 2.P q3.b 85.5 86.3 87.2 87.5 88.0 88.1 88.1 88.1 A.1 88. 88.1 88.1 88.1 88.1

GE CrE(; 84.5 -1.2 53.5 55.8 56.7 7.. 57.7 57.8 t57. 8. 5.C 58.0 58.0 8. 0 58.0 58.04E LO 4 .4 8.2 61.3 63.7 6 5.9 1 7. 68.8 68.9 b9.0 69.8 69.5 69.5 69.5 69.5 69.S 69.561 1*I 7 .. 9.9 63.8 66.3 68.3 C9.6 7r.9 71.8 11.5 71.8 71.9 71.9 71.9 71.9 71.9 71.9E [ 1'Z' I q 62.8 66.9 69.8 72.7 78.& 76.6 77.1 71.2 77.7 70.0 78. 0 8.0 78.0 76.0 76.0E I. 1i 1 52.( E3.2 67.8 71.2 78.3 77.3 79.1 79.9 o3.1 8c.8 8.0 81.0 81.0 21.L 81.0 81.1

uE 1 2O1 52.q (84.2 69.Z '2.5 7G..? 79.81 61.7 62.6 83.2 '43.8 68A.5 88.5 88i.7 P4.7 88.7 88.8GE ',;J 13.3 (.6 69.' 73.8 77.7 '2.2 81.1 P8.2 88.7 -5. 66.1 86.1 P6.3 P6.5 66.6 86o .86 dE F 'r 3'.3 .. 71.1 78.2 71.2 ?1 l 88.1 06. 2 7.C P7.7 8P.8 88.8 88.7 R8.8 88.9 89.2:. 7 4L GS.5 70.4 78.8 87.3 ,4.0 86.1 R7.3 68.2 9.U .9.4 90.8 91.0 91.2 91.3 91.6GE ftoI 53.4 (5-5 7n.9 75.1 b1.1 I .c 87.1 88.8 8.2 q0.1 91.8 91.9 92.6 -2.8 93.1 93.8

GE (1 53. 65.t 77.9 7!,.3 f I.. It.GC 88.11 89.8 91.2 02.6 91.4 93.8 98.5 n8.9 95. ! 95.7tE --v 33.8 65.6 71.C 75.6 F,7.r L.3 8p7 Q3.8 91.6 93.1 91.1 95.5 96.S 97.2 97.6 98.1(If I1Z 1 53.8 65.6 7 1 . 75.6 C2.2 'I(. 3 88.9 3J.6 c 1. A 93. 9K.4 95.8 946.9 07.8 98.8 96tE z or 51.4 #5.6 71. 75.u 62.0 -6.5 s.8 93.6 *I.8 A 3.3 9€.S 9S.9 97.1 98.3 9.1 99.7GE 2I 5t3.8 65.6 71.0 75.b b2.. b. S 8q.9 3.6 91.P 13.3 q9.6 96.1 97.3 88.S 99.8 100.0

GE , 3 .8 (5.L 71. U 75.. 86.. L .5 8p.? 9u.t 91.8 .3 9 .6 96.1 97.3 98.5 99.8 10C .0

.................................................................................................................................................

TOTAL JUuPPEp OF 0' ;fRV0T. : 9P4

6.Jl i l i I

GLOAL CLI"AIDLOG PRANC PEkCENTAGE rREOUENCY OF OCCCUO NCE OF CrILING VERSUS VISIBILITYUSAFETAC FRoM I-OU"Ly OBSERVATIONS

AIR .FA/ItrF SERV1CE/IMAC

STAIION NUMDLP: 7-5287 STATICN NAME: 618AGARA FALLS TAP Ply PL'00 OF RECOROD: 77-86MONT : DEC POURS(LSTI: 1500-1700

C; SIXIG VIFILIY IN SIATUTF MILES1'. I OL GE GE GE GE GE GE GE GE GE rL GE GE GE GE GE

FEEl | 05 6 C 4 3 2 0/2 Ii 1 1 /,4 1 /U 5/*a 112 0 16 1/8 0

................................................................................................................................................

F-0 CEIL 1 17.4 17.8 18.2 18.2 1R.3 le.3 18.3 18. 3 18.,3 2.3 19.3 18.3 18.3 18.3 18.3 18.3

(E 2Ur0'1 19." 4 -1 C.8 20.9 21.0 21.0 2.1 C 21.9 21.c 21.0 Z2.0 21.0 21.0 21.0 21.0 21.0&,E 18 L2U2 Z0. 3. , 22.1 21.Z 21.3 21.3 "1.3 21.3 21. 3 1.3 1. 3 2. .3 21.3 21.3 321. 21.3

GE 16CO i 2l. 7G.d 21.1 21.2 21.3 21.3 21.3 21.3 21.3 ?.3 21.3 21.3 21.3 21.3 21.3 21.3.E 14' C02 2I. -1.3 21.L Zi.7 21.8 21.8 21.R 2 1. 2 2. 21.6 21.8 21.8 21.8 21.8 21.8 21.8GE 12- CfI 1,* 22.5 22.e 22.9 23.0 73.:. 23. 23.0 23.0 23.C 23.0 23.G 23.0 23.D 23.0 23.0

LE baOC Z.2 24.4 28.7 28. 2u.8 28.9 2.9 24.9 24.9 74.9 28.9 28.9 24.9 24.9 24.9 2.96E grool 28.2 's.6 26.1[ 26.1 26.2 ;6.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 2b6.2GE 6GcI1 26.2 73.2 28.6 20.8 19.0 2S.0 298.0 29. 29.c 29. 29., 29.0 29.0 29.0 29.0 29.0GE 7'L! I Z .' 28.b 29.2 29.6 20.8 P 6.6 29.4 296 29.8 29.8 2-.8 29.8 29.8 29.8 29.8 298

LE 6roil 27.6 2.97 30.1 3C.4 30.6 C. 6 31.6 Y0.6 30.6 70.6 3r.6 30.6 30.6 30.6 30.6 30.6

',E ;C Cr .8 4 2., 31. ! .o a 58.1 4.1 38.1 38.1 38.2 38.1 38.1 38.0 38.1 38.1 38.1 38.1

aE 4201 37.4 75.8 35.8 36.7 !7.0 37.1 37.1 '7.1 37.1 37.1 37.1 37.1 37.1 37.1 37.1 37.1GE 1 34.8 '8.1 39.1

) 39.9 7.4 oL.S 419.9 80.9 40.9 80.9 8f.9 40.9 87.9 80.9 80.9 80.9

.E L I :O.- 81.2 42.5 43.5 48.2 88.2 4 . 44. 5 88.5 41. 5 44.S 88. 88.5 88.5 84.s 88.6(.E !C LfC 4r,. 85.t 47.3 89.1 SC. ',L. 50.0 50.8 50.R 50.8 50.8 50.8 50.8 50.8 60.8 50.8

(iE 2. a. 0.2 : 3.1 56.3 16.0 9. 1 16.a 6.2 6. 2 60.2 60.2 6n.2 60.3 67.3 60.3 60.3 60.3UE 2-Z:1 87.4 c8. 62.4 65.3 67.3 fe.3 69.' 69.1 69.1 F9.1 69.1 69.2 69.2 69.2 69.2 69.2

E IL;) 8.# , 7. c aI.3 61.4 69.6 7L.6 71.4 71.6 71.8 71.8 71.9 72.0 72.0 72.0 72.0 12.0GE I' :., S.q 52.8 67.7 71.8 73.F 7!.3 76.3 76.7 77.1 77.2 17.6 77.8 77.8 77.8 77.8 77.8(.E 1. Lo1 5C.6 C3.Z 69.1 73.2 76.0 Ia.1 79.2 8o.1 60.9 42.c 81.6 81.8 81.R P1.8 81.8 81.8

' 1, ;.-1 l.q '5.1 71.1 75.5 78.8 l.0 82.3 83.2 84.2 88.8 8;.8 85.6 8s.7 F5.7 85.? 8s,7

UE 1, 5.9 65.2 1 .2 7S.8 711. 2 F .6 83.1 88.2I 6.0 1 P.5 86.6 86.7 86.8 '6.8 86.8 A6.iE S-1 57.0 tS.5 71.6 76.3 8".48 G.9 88.6 85.6 86.6 87.L 8F.8 88.7 88.9 @9.0 89.0 89.0GE 7,; 55 7 e g~ gl 9:G.E 77?| ,?.D 11.6 :6:5 6-.6 h3:2 d8.9 86:1 81.3 88° 89.8 90.1 90.8 80.5 90.s 90.5fjE !" 2, .. t,6 11.9 76.9 61,3 4N. u 6, a I 1 2 88. 09. 91, 91,a 92 2 92, 92, 93.0

GO * I F'.2 ''.7 72.f 77.1 H1.7 .7 87.0 b8.3 89.5 90.3 92.8 92.9 93.2 93.8 98.2 98.8FIE rC1 !.2 (S.8 72.2 77.5 82.3 -5.4 67. 89.1 9.S 91.7 . 9. L 98.5 98.9 '5.8 96.3 96.6.E !I1 11. F5.8 72.2 77.b E2.4 cG.6 6.1 89.7 80.1 2.8 9ti.9 95.7 96.2 Q7.1 97.8 98.1.[ -c I ',. .5.L 72.2 77.7 62. S.7 88.8 8?.8 1 . 92.9 9..5 96.2 96,8 91.8 988 99.2Gf t?1 S2.2 V5.8 72.? 7.7 t2.5 "5.7 88.. 89.8 9l.8 03G 9-.? 96.6 91.? q8.5 99S 99.9

(,E I S.2 '5.8 72. 77.1 62.5 A5.7 8'. 89.5 91. 3.0 v5.7 96.6 97.2 '8.S 99.6 100.0

......................................... . ...................... ......................................................

1()TfL t.L'82 CF O%88105 3C

F

GLISAL CLI6AIOLOGY PP.NU- PLkCENIAUF FREUUENCY OF OCCIR8ENCE OF CFILING vFRS'5 VISIBILITYuSAFEAC FROM HOURLY OBSEPFRYIONSAli d[ATHER SERVIE/MAC

STATION NU8LR: 7-5287 STATION NAME: NIAGARA FALLS IAP NY PE"IOD OF RECOPD: 77-86

MONTH: DEC HOURS(LShI: 0800-2000...... ..................................................................... II I I I S A U M.................................................

CE ILU GP VISIYLITY IN SA1U1F PILESI N OL GE GE GE2 GE UE GE GE 1,E G E GE GE GE GE GE GE

FEET j v! 6 5 4 Z 2 112 2 1 1/2 1 1/4 I !/4 518 112 CI/b 1/4 0

.............................................................................................................................................

NO CEIL I 11.4 "1 .L 21.0 20.1 20.1 7L.1 20.1 20.1 23.1 2. 1 2P . 20.1 20.1 20.1 20.1 20.1

L GE 0P01 2-. 72.2 22.3 22.4 22.4 22.4 22.4 22.4 22.9 22.4 22.4 22.4 22.4 22.4 22.4 22.4GE 18' 201 2C.6 2.4 22.5 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6

GE ib*032 :.- 22.4 22.5 22. 22.6 22.6 22.6 22.6 22.6 72.6 22.6 22.6 22.6 22.6 22.6 22.6GE 14l 1 2.1 227 22.8 22.9 29 22.9 22.9 22. 9 22 22.9 22.9 22.9 22.9 22.9 22.9 22.9*I I u7I 22.2 24.12 241 24. 2 24.2 24. 2.2 24.2 24.2 2, .2 24.2 24.2 24.2 24.2 24.2 24.2

GE 11031-7 24.2 S.6 25.4 26.u 26.0 26.0 26.0 26.0 26.1 26.0 26.0 26.2 26.0 26.0 26.0 26.0

LE 9 C:)1 29.,P 27.7 27.8 2.,. 28.1 26.1 28.1 28.L 28.1 29.1 20.1 28.1 28.1 28.1 28.1 28.1S6' LrE:I 27. 79 . 29.6 29.1 29.P 2S. 8 29.8 29. A 29.9 29.6 20.8 29.8 29.8 29.8 29.8 29.8LE 7r1 I ... 1 '13.8 39.9 31.0 ! I, 31.1 31.1 31.1 31.1 1.1 31.1 31.1 31.1 31.1 31.1 31.1GE 6-jouI 3 :.2 I2. 1 32.8 32.9 33.0 33.12 31.0 !3.0 33.0 !3.0 33.0 33.1 33.0 33.0 33.0 33.0

E 33rI

33.' 16.6 36.8 36.9 37.o 37.0 37.0 37.0 37.0 37.3 37.0 37.0 37.0 17.0 37.0 37.0GE 41'.CI' 3*.C c 8.9 39.2 i9.4 37.8 39.8 39.P 39.6 39.8 79.8 39.8 39.8 39.8 39 .8 39.8 39.8GE 4t C31 3. 1 4.7 42.3 42.Z 42.6 42.7 42.7 42.7 42.7 42.1 42.7 42.7 42.7 42.7 42.7 42

LE 35 rI1 41.2 45.6 49.3 "6.0 46.P 47.0 47.0 47. 47.0 47.0 47.0 47.0 47.0 47.0 47.0 47.0

3C C01 4'. 1 '3.6 51.2 .C. S2.4 92.6 57.6 52.7 52.7 62.9 57.9 52.9 52.9 52.9 52.9 52.9

;,L azrl 1.t 'A.4 5q.. 59.7 63.9 61.2 61.2 61.3 61.3 71.5 61.5 61.5 61.5 61.5 61.5 61.5GE 2' Ul I5.A 64.4 66.5 61.4 69.5 71.12 70.1 70.3 7C.3 7. 5 77.5 70.5 70.5 70.5 70.5 70.5[ 5 9 19.22 67.1 6-6.3 68.7 69.b 71.8 7Z.4 7.5 72.7 72.7 72.9 77.q 72.9 72.9 72.9 72.9 72.9

GE 1S3 5Y.7 7C.2 73.1 74.4 76.9 77.6 78.C 78.3 78.4 78.7 7A.7 78.7 78.7 18.7 78.7 78.7A IL3 E C.f. 71.9 75.1 76.6 7R.9 90.1 8.4 1.1 61.2 ).7 81.7 81.7 81.q 91.8 83.8 81.8

bE 1, t. A r 73.7 77.1 78.7 61.4 P2.7 8!.1 84.L 84.4 4.9 au.9 84.9 85.1 05.1 8S.1 85.1uE 6 65 .: 73.& 77.3 78.9 61. 84..2 6.7 84.6 85.1 75.6 8%.6 85.6 85.7 P5.7 65.7 85.7E (t2C.4 '4.L 77.7 79 t, 6!.7 '4.b 69.4 86.6 o 7.0 97.6 87.8 87.A 89.0 98

0. 88.0 88.0

GE 7 L1 (2.6 74.3 7R.3 80.6 64.4 L. 87.4 98.7 69.2 9.9 9 .2

90.2 90.4 00.4 90.4 90.4

;,E (oI 62.' 74.6 78.5 91.j C4.9 r7.5 80.3 89.9 93._ *1.3 91.7 91.9 92.3 92,3 92.4 92.8

uE 7. I2.6 24.b 79.6 1.4 89.6 i'6. h 9'. q.61.6 9.3 Q 3.V 9.4 93.7 94.1 q4.1 94.2 94.6GE 41 C, 6.,6 74.7 77.9 11.5 b5.6 h4.5 91.1 92.7 93.3 4 .! 94.9 95.2 95.6 15.6 95.7 96.1. - I 121,b 74.9 71.1 61.7 P6. I 93.3 92.3 94.2 94.8 95.9 96.7 97.C 97.4 97.4 97.5 98.010 20C01 (2.6 74.9 79.1 1.7 66.1 %1.3 92.1 94.7 95.5 96.h 97.3 I7.7 98.2 96.4 98.6 99.0uF I33 2.( 74.9 71.I PI.7 86.1 ' .3 9Z.! 94.7 95.9 7,. 9-.I 98.6 99.0 99.2 99.5 99.9

".| (7.6 74.9 79.1 91.1 86.1 4c. 3 9.3 94.7 59.7 97.0 90.1 98.6 99.0 99.2 99.5 IO.0

TOTAt 5081R Of O"201191104N5: 4Jr.

a x

F

61084AL CLIMAIOLOUY V6816CH PEHCLTAE EREQUENCY OF OCCUR8ENCE OF CEILING VrRSUS VISIBILITY

. USAFETEC FROM HOU"LY CSRVAT1ONS

AIR .EAI4 1 SE[VICE/PAC

SIAIION NLP3P: 725287 STATICN NAME: FJIAGAFA FALLS TAP NY PEV10G OF RLCOPO: 17-869N0t6: DEC IOLRSILSTI: 2100-2300

CEILI %G VISI ILITY IN STATUTE MILES1I I rt GE GL I[ GE GE GE GE GE GE GE GE GE GE GE GE

FEET I n t 5 4 3 2 1/2 2 1 1/2 1 114 1 /44 5/8 112 FI1 6 1/4 0............. ............. ............. ............. ............ ............. ............. ............. ............

NI CEIL I J'.r! 70., 21.2 Z1.2 21.2 '1.2 21.2 21.2 21.7 21.2 21.2 21.2 21.2 21.2 21.2 21.2

Cr 2020JI 21.4 22.4 22.7 22.7 22.7 22.6 22.P 22.8 l2.8 22.8 27. 22.8 22.8 22.8 22.8 22.8*E IAsC 21 4 =£°: 22.7 22.7 42.7 2Z8 22.P 22:a 22.E 22.8 22 . 22 22 22.8 22.8 22.8

*E !u I 4 12 7:4 22.7 22.? 22.7 ,. 8 22 . 22.8 22.p 2 .8 27.8 22.8 22.8 22.6 22.8 22.8

(E 14r I 1.. k 2.4 22.7 22.7 .7 22.6 22.P 22. 8 22.8 22.b 27.9 22.8 22.8 22.8 22.8 22.8LE lrcI 21.9 72.9 2!.2 23.2 23.2 23.3 23.3 23.3 23.3 23.3 21.3 23.3 23.3 23.3 23.3 23.3

6E WLiI 23.7 24.7 25.1 25.1 25.1 Z5.2 25.2 25.2 25.2 25.2 25.2 15.2 25.2 75.2 25.2 25.2§E 9rc I 2. 25.3 26.1 26.1 26.1 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2 26.2a, Ua-i 2.7 27.1 27.q 27.4 21.4 27.5 .5 27.275 21.5 7.5 27.5 27.5 27. 5 2 27.5 27.5F 7' L1 7 6.2 27.7 29.1 26.1 28.1 26.4 2A.5 26.5 28.5 78.5 2A.5 28.5 28.5 78.5 28.5 28.5

LE 6.2cc 24.r 29.( 29.9 29.9 29.q 'L.2 30.3 30.3 sc.3 3. 3 3n.3 30.3 30.3 30.3 30.3 3u.3

r I C:71 !2.4 !4.3 34.6 34.6 34.6 34.9 35.1 35.1 35.1 35.1 35.1 35.1 35.1 35.1 35.1 35.1* a 420 26.1 !3.4 38.7 8.9 30. 0 55.4 39.5 39.5 39.5 39.5 39.5 39.5 39.5 39.5 39.5 39.5

E .rLli 38.2 41.L 41.5 41.7 41.h 42.2 42.3 42.3 42.! 42.3 47.3 42.3 42.3 42.3 42.3 42.3

*E u ! :) 1 41.3 44.7 45.3 45.5 46.n ut. 3 46.5 46.5 46-5 46.5 46.5 46.5 46.5 46.5 46.5 4b.5

iE 2 ;[111 4.1 '1. 51.6 51.8 52.q 52.7 52.9 52.9 52.q 52.9 5!.9 52.9 52.9 52.9 52.9 52.9

E 2znI 5 '.P '9.4 60.4 61.0 62.2 62.5 62.8 62.8 62.R 62.8 62.9 62.9 62.9 62.9 62.9 62.9*t tcri t c 58.4 77.3 71.3 73.L 73.8 74.6 74.6 74.6 74.7 74. 74.6 74.8 74.8 74.8 74.8

bE 8LO (7.1 E 9

. 71.,r 72.0 73.9 74.5 7;.4 75.4 75.4 75.5 7 .6 75.6 75.6 75.6 75.6 75.6 .

LE Ir 'Cr1 62.3 72.2 74.5 75.9 78.2 7. C 79.9 79.9 79.5 F0.0 82.1 00.2 80.2 80.2 80.2 8C.2

,E 12Ct 1(7.2 '4.2 76.6 78.1 89.5 01.6 82.6 42.7 82.7 82.P 87.1 83.2 83.3 83.3 83.3 03.3

aF 1rCI 6!.7 75. 77.b 79.5 f2.4 23.4 84.5 84.8 85.2 R5.4 85.7 85.8 86.0 86.0 86.0 R6.0E 71 5!.? 15.1 7.6 79.5 E2.24 6.5 44.6 8o.6 85.3 P5.5 85.8 85.9 86.1 96.1 86.1 86.1

yE '3i 63.1 75.4 78.4 P.4 F 3.8 65.1 86.1 86.7 87.0 A7.2 67.5 87.6 87.8 A7.8 67.8 87.86F 712 64.2 '5.8 7R.9 P1.1 64.4 c.2 167.' 68.i b6.5 88.7 8q.I 89.2 89.5 89.5 89.5 89.5

L[ L 69.1 75.S 79.1 41.4 65.3 'I.9 8!.I 9R.9 89.2 99.6 9'.1 90.3 90.8 90.8 90.9 90.9

oE '2: 64.1 16.1 79.5 'j.7 45%9 b4.L 69.4 9c.5 91.1 91.4 ,92.3 92.6 93.0 93.0 93.1 93.1,E 4 .il 64.2 76.2 79.5 81.9 h6.3 . b. 9n.3 91.7 92.5 '3.c 98.0 94. 3 94.9 94.9 95.1 95.1 z

(,t %C 64.2 76.6 79.9 32.6 67. 8 9.6 91 . 93.n 93.8 Q4.4 95.7 96.1 96.8 96.9 97.0 91.0(A :..I (q.2 76.6 79.9 P2.5 .17.1 p'.. 91.4 93.3 94.1 q.7 9s.1 96.6 97.4 07.8 98.0 98.0

GE Il 6q.2 16.. 79.9 P2.5 b7.1 Q9.6 91.4 93. 5 94.4 5.2 96.9 97.6 9q.7 99.2 99.4 99.5

4E ' 69.2 76.6 71.5 82.5 b 7.2 E. 6 91.4 93. 3 94.4 S.2 97.c 97,7 04.8 99.5 99.8 100.0.......................... °................................ e.......°............................................e.....

1OA NUM4ET (IF 0,SFNVATIONS: q5

L

F.

ULtbAL CLIMACLCGY BRANCH p:uEsLf:rE FP:UrCY OF OCCrfG0LPCE OF CEILIeG vERSUS VISIBILITYUSAFEIAC FOCM IOURLY NJSEPVAITUNS

ATP 4.FATHEP SFPVICE/HAC

TAI1(-N NUIHBLP: 7;5,'L7 S TATI'N T, AME: NIAGARA FALLS I AP KTv PEPIOD OF RECORD: 77-86MONTI-: DEC I-OUPS(LSTI: ALL

... .. . .... .....................,.. ... .. .,.. .................. ................................................ .......

CEILI',G VIPILIT 1 I NjLES

I ',L :6 C GV 5 GE a [ Gr GI 6. E E GE GE 6E GE 1 EFEE I 6 5 e 3 2 1/2 2 1 1/2 1 1/4 1 !/4 Si8 1/2 ,/16 1/1 L

N.O CEIL 1 1 . 39.9 20.2 2C.2 2.4 21 4 2C.5 20.5 20.5 20.5 2n.5 20.5 20.5 20.5 20.5 20.b

.E 2:rCL ".1 22.9 22.2 22.3 22.4 %.5 2.5 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.6 22.7,,4 1 c21 22.' 22.2 22.5 22.5 22.7 22.7 22,. 22.d 2z.8 226 2' .8 22,8 22.a 22 8 .8 22. 9

E6 lb:* 1 22. .22 22.5 722.6( 22.? 2 . 8 Z2.Q 72. k!22.8 e 2., 22.8 22.8 22.9 22.9 22. 2.fF i4'2r 2!.P 72.6 22.9 22.9 21.1 2. 1 23.2 23.2 23.2 23.2 29.2 23.2 23.2 23.2 23.2 23.3

Z 12!LCI 21., 23.5 23.0 23.6 24.0 24.1 24.1 24.1 24.1 24.1 24.1 24.1 24.1 24.1 24.2 24.2

I6 16CCCC 23.4 ;5.3 25.6 25.7 25.9 2L.C 26.0 26.1 26.1 26.1 2.1 26.1 26.1 26.1 26.1 26.2.4 9611 ."9 26.3 26.? 26.8 27.o 27.1 e7.2 21. 27.2 22.2 2'.? 27.2 272 27.2 27.3 27.3

.bE Pfr 1, 21 23.b 28.9 29.L 29.3 29.4 29.4 2.9% 29.5 29.5 2-.s 29.5 29., 29.5 29.5 29.6., 72rI ze. 79. 29.8 20.1 31.2 1.3 32.4 30.4 30.4 30.4 37.4 30.4 31.S 30.5 30.5 30.6.E brLC 7.' 2.6 31. 3 1.2 11.4 !1.5 31.6 31.6 31.6 11.6 31.6 31.6 31.7 1.7 31.7 31.8

F Sf21 32.i '.9 34.4 ?46 4:9 05.L 35 :1 35.2 35.2 35.2 3n.2 35:2 35.2 35.2 35.2 35.3'6, 4, 'I 4' '7.

7 38.3 38.6 39.0 08.1 9.2 .3 39,3 I9.3 37.3 39.3 39.3 9,39. 39.4

.E 4:22j 0,r 42.1 41.,1 4.4 41,9 4e.1 42.? 42.3 42.3 42.3 42.3 42.3 42.3 42.3 42.4 42.42'3: 1 ,I1-' 13. 7 44.7 45.1 45.8 4f.11U 46.2 4b-~ '46.3 46.3 46.3 146 .3 46.4 46b. 4 46.4 46.5

ut f, Ll 4'. 48i. 1 49.4 90.3 5 0.8 a il1.4 51. 5 s I. 5 15 5I. 5 1.5 52.6 5,1 .6 51.6 51 .1

,F 4. . rS,3 57.! 58.4 99.5 54.5 63,.2 62.3 b. 3 61.4 6m .41 60.4 60.5 60.5 60.5 60.6.V " C r 5!.1 X2.7 65.6 67.3 t'.l 9.8 7C.6 73.8 71.9 70.9 71.0 71.0 71.0 71.0 71.1 71,2£, 1,4- '4 .2 .. .7.4 t9.4 71.3 7-U 7,7 73.U 13.1 73.2 72.3 73.3 73.3 73.3 73.3 73.4

E 11 CI 50. 68.- 71.7 74.1 76.5 77.5 7 .,9 .'.2 7.1 '9.3 79.s 79.5 79.5 79.5 79.6 79.7CE I 2IL 57.5 '.9.7 73.5 76.2 78.8 1 . * 2 61.4 d2.1 82.2 P2 .5 47 7 82.8 82.8 82.9 62.9 83.0

Ir, 5'.2 j.L 75.C 77.9 81.0 ;2. 4 65.7 84.4 84.8 95.1 8'.5 85.6 85.7 85.8 858 85.9E 43, 5.' 71.3 75.4 78, 11.5 2.1 64. : 5. 5.5 85.. 861 86.4 96.5 96.6 6.7 86.84 '.1' 5'.. 71.5 75b 79. 92°. .43 fiS p,4 8it 2 7.7 44.3 88.4 845 98.6 897 98.8

S. '121 SJ.6 71.8 76.2 79.6 83.4 9,.3 67.7 99.6 d9 . 5 '9.1 8n.9 90.1 90.3 90.4 90.4 90.6

t1c I ''.' 71.9 76.4 79.6 f!.9 "L. L 87. pa.9 89.5 10.2 93.2 91.4 91.7 q.9 92.1 92.S

S st- 5,7 12.1 76.6 62.2 6 4.4 '6.8 659 90.1 l0.1 . .7 9,9 93.2 93.6 93.8 94.1 94.3u4 4 F3 5S,4 72. 76.7 P0.5 84.4 '7.4 89.7 91.1 02.6 97.1 . 94.5 94.6 95.3 9S.7 95.9 96.2:,f '62 1 72.3 76.'i 8.7 85.2 '7.E 92.0 92.c 93, . .I 99.7 96.1 967 97.1 97.4 91.7

*' ,2. 5.,8 7.0 78,h P0.7 bl 17.9 97.5 92.3 93.4 94 . 6 ;.3 96.8 97.4 q8.O 99.5 98.9. I 1 5P.' 712.3 16.8 P0.7 .5.1 7.9 92.' 92.3 43.5 94.9 91.9 97.4 98.1 98.8 99.3 99.7

Af 'i 72.3 76.8 70.1 65.2 7.9 3. 9 2. j 93.9 q4.9 98.9 97.4 9q.1 98.8 99.5 100.0

TOTAL Nt'Mr[' OF O'SfVPil(IOr.S: 149C

UL5526 CLIMATOLOGY OPANCI- PEHCLNTAGE F.P'UE%5 Of OCCUPENCL F CCILING VFRSUS VISleILITv

uSAFCTAC FROM CU4LY O45EPVATTONA83 wA7E $ERVICEII'4C r

STA71ON U"fLP: 7'257 STAt I0N NAME: NIAGARA FALLS ZAP PIT PE IOD OF 'ECO: 71-87MINTH: ALL HOURSILSTI: ALL

CE IL. V.tZ 15ILITY IN STATUTE MILESTri I GL GE GE GE GE CE GE GC GE GE GE GL GE GE GE GE

rL(E I Ir

6 s 4 3 2 /I l 1 112 1 1/4 1 3/4 5/8 112 S/lb 1/4 0

NO CEIL 3' 36.1 37.3 38. 1 3E.4 t 6. 9 39.C 39.1 39.2 39.2 39. 2 39.3 39.3 19.3 39.3 39.4

. 2 U' C1 3 AS: 9.5 4 P 41.9 41. 1 42.3 9. t 42.9R 42. 9 42.9 83.C 4 '.0 43.0 43.0 43.2 4 .1 &3.1IE 16cc1 35.2 !9.7 41.0 41.9 42.5 4z.8 4!.3 43.3 93.1 43.2 .2 43.2 43.2 43.2 43.3 43.3

GE Itol 3 !9.& 4 1.1 42.1 42.7 43.0 4 3.1 43.2 413.3 43.3 4 .3 43.4 43.4 434. 43.4 43 .5UP 4Z7I1 35.9 40.:4 '4 42. 4 3." 43.7 47. 9 1 4. : 'G14.:0 44 44.t1 99.1 44.:1 44. :1 4 4.:1 44.GE I A'.1 92.0 43.4 44.4 45.1 4.4 45.5 5.7 45.7 95.7 49.8 45.8 45. 4 5.8 45.9 45.9

f GE ICr67 39.0 94.3 9%.b 47.u 47.7 48.0 49.2 98.3 43.4 98.4 4A.5 48.5 48.5 48.5 48.5 48.6* r 9'1,; q. 7 45.1 46.7 47.9 46.7 49.5 49.2 49.4 49.4 49.4 49.5 49.5 49.5 49.5 49.6 49.6U. 5- t: 41.9 47.4 49.1 50.9 51.7 ,1.6 51.8 51.9 52.3 92.G 57.1 52.1 52.1 52.1 52.2 52.2.1 7W7 -2 4.5 98.5 50.! 91.7 52.5 52.9 57.7 53.3 53.4 53.4 53.4 53.5 53.5 53.5 53.5 53.6E L; . I 93.r 99. b 51 . 53.1 59.C 54.4 54.6 54.61 t.8 34.9 54.9 54.9 55.0 ;5.o 55.0 55.1

L E U 46. 1 3L 5 5. 5616 51.6 96.1 56.3 55 58.6 59.6 5R.7 58.1 287 :8.7 58.7 58.8tE 4' r e 6.4 59.5 60.3 61.5 62.0 o2.3 62.4 62.5 62. 6 62 6 6 6 6 2.7 67.7 62.7

UE 4- Lni 5-.4 rs.6 E1.9 62.8 E4.1 64.7 65.0 65.2 S.3 65.3 61.4 65.4 65.4 65.4 65.5 65.5V! 3r .57.- .:4 b9. 86.0 6 7:4 6h.1 69.5 68.7 69.7 68.8 6A.9 68 68.9 68.9 69.0 69.0*,1 .! C4.9 67.7 70 1 71.7 7 . 72.9 73.1 13.1 73. 7 .3 3 1.3 7.4 73.4 73.4

G6 2' S-. .1 f9.7 11.9 14.4 76.2 77.1 77.6 77.9 7h.0 76.1 7Q.? 78.2 78.2 78.3 7.3 76.3

LE . 7 : 7. 7 72.S 76.1 79.1 61.2 37.4 83.1 83.5 83.6 P3.7 8.9 83.8 83.9 93.9 83.9 84.C(.E 197- f 1.' '1.3 77.;" 2.1 82.3 "3.5 9 .2 94.6 84.8 -4.9 89.0 85.0 8s.0 "S.L 65.1 85.2

S 1' uJ I t47.' 75.2 79.7 '2 .& ( 5A.2 I pt. f6 87.5 98.2C 84.7- '9.4 49.5 88.5 88.5 p8.6 89.6 p8a.17;' 1;' 67." 76.0 80., 93.8 b6.5 .6. 69.1 89.7 89.9 90.1 9'. 3 90.3 91.4 90.4 90.4 90.5

6E I LI 6Z.7 76.6 e7.9 V4.7 7.7 69.4 93.6 91.3 91.6 92.4 97.0 92.1 92.1 97.2 92.2 92.3

,71 C' . I 'z 5.7 43 .1 "4.9 97.q 'V97 90).9 91. 7 911.9 92.21 97.5 92.5 97.6 92.6 92.6 92.1(;E 'I 6 G!.9 76. 81.4 '5.4 69.5 9-.4 91 .p 92.5 97.q 3.2 9 .4 93.5 95.6 '3.6 93.6 93.7GE 7C': 6!.4 71.1 81.7 05.6 f9.2 P 1 .c 92.5 93.3 93.6 '4.n 94.3 94.4 99.5 94.5 94.6 99.7uE "r 1 6!. 77. b1.9 86.0 89.9 11.5 93.1 94.c 94.4 94.6 99.2 95.3 95.4

95.g 95.5 95.6

cO '-I 63.' 77.4 82.1 86.4 619. n . 93.9 94.t 9C.4 45.9 96.3 96.4 96.6 96.7 96.7 96.8,E ".7 67.9 77.4 82.2 16.6 7. z 92.7 9

4.s 95.I 96.1 16.7 97.2 91.3 97.5 97.6 97.7 97.8

*,l '. 1.' 77.u 82.2 P6.7 93.4 92.9 94.9 96.1 96.7 -7.3 97.9 98.1 98.3 98.4 98.6 98.1I6E 7211f II. 77.49 87. 3 '6.1 90.4 ')3. 91 .7 96. 4 v7.7 - '17.7 94.4 48.5 48.8 99.0 99.2 99.3E I , 1 I'.' 77.4 87.3 "6.7 50.9 53.L 95.7 96.9 4 7.1 '7.8 9".5 98.7 99.0 99.3 99.5 99.8

LE 1 . '7.4 67.3 46.7 91.4 3.2 9L .7 96.4 t1.1 '7.8 9A.5 98.6 99.1 09.3 99.6 1O6.3

114L .P 19. a OF 0 SVATI F.,S: 76-3JL

aaflmm tI" a L

- - -

GLCAL CLIMAICLO6Y IjRANCTH PFRCJTAG FRE6UENCY OF UCCURrENCE OF SKY COVERLSAFETAC FROM tOURLY OBSERVATIONS

AIR WAIAI6R SERv3CEiPAC

STATICN NUIMALR: 75d7 STATION NAME: NIAGARA FALLS [AP NY PLO1 OF PECORD: 70-87MONTH: JAN

...............................................................................................................................................PERCENTAGE FREuLENCY OF IENTI-S O

F TOA

L SKY LOVER

USI TOTAL

(L513 I r 1 2 3 4 6 7 8 9 10 MEAN O8s

U-C,- 3.6 12.2 13.7 70.5 8.6 928

'!-CS 3.2 13.7 13.S 69.6 8.6 928

!- I? 1.6 14.z I.0 69.0 8.7 92R

('.-I I .2 13.7 24.3 61.8 6.b 929

12-14 .5 14.8 26.0 58.6 8.6 930 A

1-17 . 3 14.7 24.2 60.7 8.7 929

1q-20 1 .7 17.1 17.4 63.8 8.5 925

.1-23 2.5 13.4 17.2 6 .0 8.6 926

1CTALS 1.7 14.2 18.9 65.3 8.6 7419

...............................................................................................................................................

*TAIPIN NIII3LP: 75,k!7 STATION NAME: NIAbARA FALLS lAP NY PEPIO0 OF RECORO: 7'-87MONTH: FEE

...............................................................................................................................................FLRLNTAUE FREQUENCY OF TENTHS OF TOTAL SKY COVER

iCUrs I 101AL(LSI 3 1 2 3 4 6 7 8 9 1 MEAN OS

............................................................................................................................

S 1.1L 17-4 I7?.4 57.31 7.8 840

("'-P 7.8 17.4 16.7 58.1 7.6 845

- 3.7 1s.6 18.3 62.4 8.4 84S5

Li-I1 I 1.2 IS.! 25.3 18.2 8.6 845

1.-4 1 :t.Z 28.4 54.7 6.5 846

1-17 12 6. 3 Z7.2 55.3 6.5 6%6

IM-20 1 4.1 N.7 20. 3 54.8 7.9 46

1.-! 7.3 I-.4 14.8 cS.0 ?.8 846

JCYTAS 4 .3 17.2 21.6 57.0 8.2 6159. L. . .. . .

. . .. ........ A ,-

F- --

GLOoAL CLTMATOLOGY HANCH PfrCNIAGE FREQuLNCy OF OCCURPENCE OF SAY COVERAISVEA AC pROM HCUTLv c8SLpVATION E

4

Al;? 'LATFER SFRVILE/MAC

STAlI N IL'P: 7-5267 STATIC NAME: NIAbAkA FALLS TAP NY PEPIOD OF RLCORD: 7-A7

PON%1U: P AR

PERCENTAGE rrEGILCY OF TENTHS OF TOTAL SKY COVER

-vOUPS I TOIAL

IEST) I C 1 2 3 4 ' 6 7 8 9 13 MEAN 065

.......................... ....................................................................................................--P. I 4. 15.1 49.4 6.9 926

CT°-rs 14.2 7u. 15.0 49.9 7.0 928

4 .0 23. ! 21.3 t1.2 7.7 924

3.3 24.6 22.0 50.1 7.7 927

12-1q 4 .2 a. 1 25.7 50.3 7.9 930

15-17 3.2 ?L. 26.7 49.8 8.0 929

1 4.7 7L.C 23.0 51.7 7.9 929

1-23 !42 17.5 19.2 44.0 7.2 930

ToTALS I.e Z1.1 21.0 50.1 7.5 7423

.................... .................................................................................................................

StATIN NtlIqER: 75287 STATION NAME: NIAGARA FALLS TAP NY PERIOD OF RECORD: 7P-87MONT: APP

PERCENTAGE PREQUENCY nr TENTIFS OF TOTAL SKY COVERACLPRS i TOTAL(LSTI 1 3 4 5 6 7 8 9 10 MEAN Os

........................................ .............................................................................................22 . 1 'S. 7 14.2 45.0 6.3 900

C3-rS lA.* a3, 12.9 48.3 6.6 896

(.-[)A 7.3 G.C 23.1 46.7 7.3 896

1 5.7 21.9 25. 4b. 1.b 900

1.1lq 3.1 2106 26.9 *8.2 7.9 899

1'-17 2.7 .11 ;6.0 *6.2 7.7 899

1a-2P I .7 7 .8 22.4 ol.1 1.s 900

21-73 1 17.3 ,.9 18.3 43.4 6.6 900

TGTAI S I WI.; 4.. ;I.0 146.4' . 7390 i.... ... ... .... ... ... .... ... ... .... ... ... .... ... ... ... .... ... ... .... ... ... .... ... ... .... ... ... ...

K

GLJ5AL CLIMATOLOGY PRAICt- PERCLNTDG FREQULNCy OF OCCURRENCE OF SKY CORERuSYFETAC FROM FOUTLY OASERVATIONSAIR fAT-FR SCRVICC/MAC

STATIcfrS NUVIT(Q: 7 $2L7 STATION NAME: NIAGARA FALLS TAP 1.Y PEIOD OF PECOPO: 79-87MONTH: MAY

°-........°.................°..°.o.o....°'.....--.°.'.....°--°.--°.°°°--°.°............°.o...-..-°-°-.-..-°...-.-°°-°...o...

P[TCLNTAGE FREWUENCY OF rENTFS OF TOTAL SKY COVER

AOLPS I TOTALILSI) I U 1 2 3 4 6 T 8 9 IC MEAN OS

...............................................................................................................................................-C2 23.u 2.1 18.6 34.3 5.8 925

.-. r5 14.8 26.5 21.0 17.6 6.5 91?

u-:13 .S 40.4 749 N. 7.2 920

9-I I 4.9 2.2 25.7 41.2 7.3 930

12-14 I 3.5 2.1 30.1 37.2 7.3 930

-17 3.9 25.2 T3.q 37.C 7.5 929

IT-2L 3.5 ',3 29.7 6.5 7.2 930

L1-23 15.4 '[.5 21.0 32.7 6.1 929

TOTALS 9.1 ..7.5 25.6 7.2 6.9 7410

$18IO NOUPER : 7-5267 STATICN NAME: NIAGAR FPALLS 1AP NY PERIOD OF RECORD: 7a-7

MONTH: JUN

PENCENTAGE FREOLENCY OF TENTPS OF TOTAL SKY COVIR1OU165 j TOTAL

ItSt! I 1 2 2 3 4 C. 7 8 9 10 -EAN Obs

I~' 31,4 1.. .6 28.6 5.4 893

Ll-nS 13.7 '2. 7 22.1 31.6 6.1 893

Lt -' 7.8 t1.11 28. 3 32.3 b.1 896

f';-I1 5.3 1.4 30.7 72.1 6.9 900

1.-14 2.1 !2. 36.7 27.8 7.1 897

I,- 17 2.9 '7.2 31.9 2b.1 b.8 899

- 3.7 !7.1 32.9 26.3 b.7 89?

21-3 12.5 4(.L 70.9 76.7 5.7 896

Ttl S I 9. '4.1 T.8 29.2 6.1 ?111......... ........ ......... ........ ......... ........ ..... .... ..... .... ..... .... ..... .... ..... .... ..... .. _.

ULj4AL CCLIPAT(L v N1A4Cf Pk6CLnjTAUr FT1 Ut.ICy F OCCURRE NCE OF SKY COVER.S tf tIA rh' f OU*LY (USEpATION

1'W. "sU-L0

: I- :'o 7STATIC'% NAME; 't 11.C4k A F tLL lA t.Y PErIOD OF RECORD! 77-RbFIONTI-: JUL

pLRCf;ITAGE rCULTL CY OF TENTI-S OF TOTAL SKY COVER

I TOTAL

(LSI I 3 ' 6 7 A 9 17 MEAN OBS.............. 2.. ..; ; ....................... ............................................. .... .......:;........;...........'"-7 ' v. 1. 3 71.9 5.2 916

r 13.4 17.2 23. 3 216.1 5.8 919

- I 7.1 76.4 28.9 27.6 6.5 920

-1 3.C 37.1 '2.5 26.4 6.7 925

1 - .4.j 39.0G 24 .6 7.0 930

"-17 1 -L. c 36.7 71.1 6.6 930

I -7 1 z5 44. 9 33.6 19.0 6.3 925

.I 4.1 23.7 20.9 5.6 923

F L FAI .5 z9. ,9 .9 73.5 6.2 7388

'-I Tilk , -,'..7 FI-.TICT. NA7E: STfIIA CI FALLS TAr NY PERIOD OF .ECORU: 77-86MONTH: AUG

PLF CLNIGE FrEQuLF.Cy OF tLNtIS OF TOTAL SKY COVER0 V61 : 1 TOTALtELST I 2 2 3 4 5 6 7 A 9 10 MFAN 08S............. ;.. .... [ : ............................................................................. .. ;........ ............

-k 1I9 ~ 20.8 30.5 5.8 919

i .-r' 2.2 !,.9 21.4 90.5 6.1 92?

I .1 !3.7 1.0 a 2. 7 7.1 927

* '-i I 2.9 t_.9 37.6 32.5 7.4 925

S-14 . b y4 42. 3 !0.1 7.6 929

7I" I !.4 .. 7 27.4 7.2 928

-o 4.0 . 1 ..1 30.1 6.9 926

.1-27 ! :1,4 '. 2 3. 27.6 5.9 926

1(1:1 I I., ,. . 71.0 70.2 6.6 74032

............... ... ............................................................................................................. L

GL03AL CL1IA]OLOGY RhiNCH PERCENTAGE FREQULNCy nF OCCURRENCE OF SKY COVERUSAFL 1AC FROM HOUrLY OBSEPVA TIONSAll b.ATFER SERVICE/MC

STAlIC14 ut'"4ER: 7ZS27 STAIICN NAME: N13AkA FALLS TAP NY PE100 OF RECORD: 77-86

PONTI: SEP

PERCLNTAGE FREQUENCY nF TENTHS OF TOTAL SKY COVERPOUDS T 1OALfILST3 J I 1 2 3 8 6 7 8 9 10 MEAN Os.

..................................... ...................................................................................................2.90.2 7 15.1 37.9 5.9 890

S-c5 17.9 76. 16.8 17.2 6.1 892

EN-nV 8.3 32. U 27.4 '6.2 7.1 883

13-11 8.b 29. !1.2 34.8 ?.1 893

17-14 Z .3 7. L 36.8 33. 7 1.5 896

It-17 1 3.5 C.S 35.8 '0.2 7.2 898

'I- 6.0 'L. 8 71.5 31.5 6.9 895

1-11, 15.6 2.5 19.2 5.3 6.2 892

TCTALS 9.3 29.5 6.7 34.6 6.8 7135................................................................................................................................

STAIli0 NUPfEP: 7-5287 STATION NAME: NIAGARA FALLS IAP NY PEPIOD OF RECORD: 77-86MONT-: OCT

.............................................................................................................................

PFPCENTAGE FIE6UENCY nF TENTI-S OF TOTAL SKY COVEROLPS 10161

(LST) J 1 2 3 8 8 6 7 8 9 10 PEAN O 6$

r -C2 13.9 .3.8 19.2 43.S 6.8 922

r c 401.119.,1 %S.2 6.9 919 t'

6-n IF 3.8 7.1 28.6 411.5 1.5 916

L'-II 3.5 c° 72.5 81.8 7.7 930

1 -11 3.2 L. 4 38.8 41.S 7.9 927

1 -17 5.1 . 32.2 80.9 7.6 930

I0 .. 1 45' 2%8.6 81.8 7.2 gag

.71 -23 18.0 6. . 42. 39.5 6.1 9??

TOTAt S 8.3 7.1 26.1 81.9 ?.3 7800

...............................................................................................................................................

ee ~ e ee ° ' e ° ee° * e ~ e°---------------~s~e

K

UL81 CLIrATOLOGY PRANCH PERCLNTA&( FREQUEICY ')F OCCURRENCE OF SKY COVER

L'SAFLTaC FROM HOLYLY OUSERVATIONSAl1 *EATI-EFl SERVICC/rAC

STAJICN NUMPLR: 7.5267 STATION NAME: NIAGARA FALLS ZAP NY PEP!OQ OF RECORD: 77-96MONTH: NOV

..................................................................................................................................................p FCLNAGE FREwuLENCy OF TENTHS OF TOTAL SKY COVER

FOUrS I TOTAL

tLST) i C 1 2 I 4 6 7 V 9 13 MEAN OBS

0- 7.4 16.2 17.8 58.6 7.9 668

L - 7.1 14. 1 .3 59.5 8.1 88

.b-ns 1.9 le.1 23.0 7.0 8.3 890

c-11 I 3 Is 5 24.5 55.7 8.6 896

I?-14 .4 15.7 29.4 '4.5 8.6 696

l?-17 .6 16.1 26.6 56.7 8.5 898

1Y-20 3.1 2,.5 19.8 56.6 8.1 896

71-23 5.n 19.4 20.9 53.9 7.9 896

TOTALS I 3. 17.U 23.2 56.6 S.3 7150

..................................................................................................................................................

STAT(ION 140I01': 7,27 STATICN NAME: NIAGARA FALES IAP NY PETIO OF RECORD: 77-86MON1p: DEC

..................................................................................................................................................PPENYAGE FREUENCY oF TENTFS OF TOTAL SKY COVER

IOU(S I TOTAL

ILIT) I : 1 2 3 4 5 £ 1 9 9 10 "E(AN 065

............................................. ................... ......................................................... .................I .S '6.?14.0 65.1 8.3 930

C'--c.. 4.2 1.7 17.2 63.1 8.3 927

'6-cA I 1.7 1-.4 1a.1 64.8 8.6 930

I -l I .3 12.6 23.3 63.7 6.8 926

12-14 I .3 14.L 22.6 6s.1 66 930

" -!7 .4 14.9 21.1 65.6 8.6 930

13-2c I 1.9 14.C 17.5 65.9 s.6 930

Z 1-2! I 2.7 It.1 14.9 66.2 6.5 930

TOTAlSI 2.J 14. 1R.6 64.7 6.6 7433L. . ............... ...............................................................

ILALCLIMR1OLLI PRANC-F PRCINIAGE FkEQUENCY 0f OCCURRENCE OF SRI COVERJSAFETAC FROM &QUDiY ObSI9VA31095 IAll, uFA1HLI6 SIRflrE/MAC

STTION1 NUP-ftR: 72567 STATIEP. NAME: NIAGARA FALLS lAP NY PE-100 OF REORD: 77aPONIII? ALL$

PERCIAGF F'REAIIL'ICY Of ;ENTLS OF TOTAL SKY CORERIOUS EA 101*S

L11 S I 1 2 3 4 5 a, 7 a MA 8

JAI' ALL 1 1.7 14* 18.9 66.1 8.6 79j19

FC E r, 4.3 17.2j 21.6 57.13 8.2 6169

1821.0 -50. 1 1.S 792 3

APr 13.2 224 410 6.9 7.2 7190)

MAY IV 9.3 27925.6 17.2 6,.9 79410

* J1. 9.0 !4. 1 217.8 29.2 6.9 711l

*JUL g 155 '9. 29.9 23.6 6.2 738

*Aur 7.6 11. '.0 '0.2 6.8 79102

511 s.J 4 26. 7 14.6 b6 1136

OC' #3 R.3 23. 1 26.7 ? 4. 7.3 7900o

NO a3. I .3 17. L 23.2 ',9.6 6.3 1260

zu LC I 2.0 19. 6 1.6 69.71 8.6 713

TOTALS I 6.7 24. 3 93 .4 78.... ... ... ... ... ... ... .... ... ... ... ... ... ... ... .... ... ... ... ... ... ... .... ... ... .. 7... ... . 1. .8 .

PPP:Ppppp AAAAAAA% ARRARR TT1ITTLCC ECEpp p LA A A R 17PP: pp A AA A Ri CE

ppPPPppp AALAA A4RRRRAR 77PP AAA LLA AR AREiCCE

RPL R R IT EEpp AA LA R R 11CCCECC

APL A AR RR IT EEEECECEC

E--

K

TEPPERATURE AND RELATIVE HUMIOITV SUMMARIES

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE OF DAILY MAXIMUM (HINIMUM AND MEANI TEMPERATURES

DATA DERIVED FROM SUMMARY Of DAY DATA.

PERCENTAGE TABULATIONS PRESENTED BY S-DEGREE FAHRENHEIT INCREMENTS PLUS THE MEAN, STANDARD DEV-IATIONS AND TOTAL OBSERVATION COUNT.

THE MINIMUP TABLE ALSO INCLUDES A 33 FAHRENHEIT DEGREE INCREMENT.

SINCE MANY STATIONSISITES DO NOT HAVE MAXIMUMMIKNIMUM THERMOMETERS, THESE TEMPERATURES WERE SELECTED BY SCANNING

THE pOURLY OBSERVATIONS FOR ThE HIGHEST AND LOWEST VALUES.

STATISTICS DO NOT INCLLDE INCOMPLETE MONTHS ITHOsE CONTAINING ASTERISKS).

FOUR OR MORE COMPLETE MONTHS ARE REQUIRED FOR COMPUTATION AND DISPLAY Of STATISTICAL VALUES.

EXTREME MAXIMUM AND MINIMUM VALUES

DATA DERIVED FROM SUMMARY OF DAY DATA.

PRESENTED ARE THE HIGHEST (LObEST) TEMPERATURE FOR TWE MONTH FOR EACP YEAR.

ALSO PRESENTED ARE STATISTICAL VALUES WITP TIE SAME LIMITATIONS MENTIONED ABOVE.

AN ASTERIST INDICATES AN INCOMPLETE MONTH.

MEANS AND STANDARD DEVIATIONS FOR DRY BULB IWET BULB AND OE POINT| TEMPERATURES


DATA PRESENTED BY THE STANDARD 3-HOUR TIME GROUPS BY MONTH, MONTHLY AND ANNUALLY IALL YEARS COMBINIDl.

PRESENTED ARE MEANS, STANDARD DEVIATION AND OBSERVATION COtNTS.

CUMULATIVE PERCENTAGE FREQUENCY OF OCCURRENCE OF RELATIVE HUMIDITY


SUMMARIZED BY THE STANOARD 3-HOUR TIME GROUPS BY MONTH, MONTHLY AND ANNUALLY (IALL YEARS COMBINEDI.

PERCENTAGE VALUES PRESENTED IN 1D DEGREE INCREMENTS OF RELATIVE HUMIDITY.

ALSO PRESENTED ARE THE MEAN VALUES ANO OBSERVATION COUNTS.

----------------- L

IS

UL 04*aL CLIPAROLOGY RAANCH CLMLLAIIVL PERCENTAGE Of OCCL'RRLNCE OF PAXI'M TEMPERATLRESUSAF17AC FROM $UMA Y OF DAY nATAAIR FAIHFP FRLRVICE/pAC

STATION fJUMHeP: 725287 ST A I j NAME: NIIArARA FAILS [ P Y PERIOD OF RECORD: 51-64, 68-87

Itoplifl JI. FEB MAk APR MAY .4lrJ JLL A1 SEP OCt NOw DEC ANNUAL

.......... ... . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . ... ..

ul. 91 .2 5.0 S.C 2.9 1 .4 .9

CA £51 2.5 11.2 ?,2 17.3 6.2 5.4

GE E81 I.e 9.6 33.1 5b.3 V1.9 16.4 1.6 13.9

Gf 751 .3 5.6 22.3 56.6 p4.2 77.5 34.8 6.5 .2 23.7A 71 1.5 13.4 37.8 7 .6 Qb.5 13.1 56.2 18.0 1.2 o1 32.6u b| 3.1 21.9 5.1 91.9 4.7 -9.9 77.3 34.b 5.1 .3 40.!

4 £3 .4 6.s 25.2 74.5 97.3 i70.c 099 O1.A 53.2 13.b 2.0 47.1GE 51 .3 2.1 12.3 5:2.4 86.6 99.1 1c00 082 71.3 25.1 5.1 53.6

!E CCI 2.6 4.b 20.1 64.9 95.4 IrC." q9-9 85.4 40.8 8*1 59.6

GE 41 6.8 10.6 32., 31.6 99.2 |'O.o 95.5 57.1 15.e b66.

u( 4 1 % '. U 20.5 48 . 91.1 99.9 98.9 75.3 18.2 72.76t 3 1 !2.7 41.2 69.2 97.1 10.0 1o.O 90.8 !3.0 81 *

6, !-1 1 .3 61.9 96.1 99.L 97.9 74.0 89.0.1 25 7[.7p 76.8 9 . 99.6 99.s .6. 93.9

bc ;c -4 ,3 A9.2 Q 8.5 1CO.6 99.9 S4.6 97.2

GI 'l C3.9 95.2 99.8 100.0 58.5 98.9il 1 I 93.1 98.6 td.o 59.6 99.7Gf I -".b 99.8 1(0.0 99.9i L I 1C0.c 1030.0 1( C.

. . ........ .......... ....... ....... ....... ....... ...... ...... ...... .. .... ... .... ... .... ... .... ...: ....... ....... .. . .

P'RAN 7 9. 7 32.0 40.6 55.27 66. 3 75.5 711.5 18 .8 11.1 tO.2 47.3 35.3 56.0*.I o.k34 10.237 11.166 11.7J4 9.A8 7.645 5.789 5.962 8.374 9.436 10.107 9.907 20.225

K128L uV! 1 '4 88 936 9EC 930 913 'OU9 868 840 902 910 961 3C865

I. .o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . .

rL

GLUbAL CLIMATOLOGY RRANCH CUMULATIVE PERCENTAGE OF OCCURRENCE OF MINIMUM IEMPERATURESUSAFjTAC FROM SUMMARY OF DAY DATAAIR .FAT ER SERVICCIRAC

STATION NUPOLR: 7752R7 STAlIcN NAME: NIAGARA FALLS 1AP NY PERIOD OF RECORD: 51-6 -87

TI PIF)I J AN rCe MAk ArR MAY JUN JUL A U. SEP OCT Now DEC ANNUAL..................................................................................................................................................

GE 7"1 .5 .Q, 7-1 i.U 8.8 6.5 Z.7 .17GE 51 1.c 11.5 !1.4 29.1 10. .3 6.8ll (1 .2 5.1 !2.4 65.f 6.2 ?Z.4 2.0 .1 15.0IC 551 2 .r 16.9 5s.* VA.6 1... 41.3 8.8 1.5 24.6GE E7I .1 6.7 32.6 , .1 99.2 q5.3 66.2 23. 4 4.8 .1 33.6bF 451 .4 1.s 15.U 56.0 95.8 10o. 99.5 93.1 44.3 12.4 1.6 41.9UE 401 .4 1.2 4.b !2.6 80.1 99.7 I00.

C 46.3 65.9 24.7 3.4 50.2

L.[ 551 3.5 4.8 13.9S 51.3 94. 7 99.9 99. 05.4 46.2 10.6 59.1

(r Z31 (1.7 9.1 21.1 66.9 98.0 irc.0 Q9.8 90.7 57.5 18.b 63.5

GE 3C 13.5 18.5 34.7 8U,8 99.7 InO.o q6.3 72-9 30.2 70.1

LF, -m '7,-b 12.2 S7.6 914.1 100.0 99.9 9G.0 ! I,. 79.1

bf Z' 42.8 44.6 77 . i )O.j 100.0 97.0 t7.8 85.8

f,r ],I 6J.7 64.4 89.2 S9.4q 98.4 fl 7 91.1

GL I1 77.6 77.3 95.b 10.0 99.5 50.9 95.0C '

8' .. j 9C.3 9*. 99.8 $6.3 97.8

;, E 95.4 96.7 99.6 99.9 S9.2 99.2(IE "~ T8.C 99. 3 996.6b 100.0 r9 .9 99.74F -1 5).8 99.. 100.C I[o.0 100.0i' -1'I '9.9 100.0GE - I l-Q.U 127.0 100.0

I 10.370 10.582 8.d69 8,0!U 7.69. 6.791 S.522 6.324 8.263 8.C39 8.537 9.911 17.512TO1AL ORS 9 '49 91.8 937 90c 930 6019 V09 869 440 902 910 961 10865

................................................................................................................................

K

SLJEAL CLIMATOLOGY PRANCP- CUMULAIIVE PC CENTAGF Of OCCURrLNCE OF MEAN TE14PERATUR(S

USAFETAC F901 5UM4ADY OF nAY DATA

AIR 4EATFER SRVOCE/MAC

STAION NUP:fLP: 752-87 51I11U NAPIE: NIAGARA FALLS OAF NY PERIOD OF RECORD: 168. 68-87

TEMPfF)I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNVAL

.......................................................................................................................................GE Ecl .9 5.1 3.7 1.4 .9GE 751 1.2 9.5 27.2 ?1.1 6.9 5.4br 7-1 .4 6.1 31.5 63.6 13.2 18.7 1.0 14.3

SE 1 1 3.0 17.2 56.8 90.8 93. 1 '6.9 5.9 .2 . 1 281. 3l f ? .8 8.6 35.2 A3.0 99o 97.0 62.6 19.0 2.0 33.4

St 591 1 . 17.8 s8.9 95.6 1 . a 99.5 A3.9 !7.@ 7.8 .5 81.4uf. 1, nI .1 .6 5.11 348.1 79.U 99.3 1Po.O 96.2 58.8 18.2 2.2 88.9(E 1 1.1 2.2 11. 53.1 93.3 105.0 09.8 81.5 33.2 5.6 56.1Gr 8q' t 8.5 6.8 23.,9 75.8 99.

2 1ro.0 93.8 58.2 12.8 63.7

1 3i 1 13.1 19.7 83.b 89.7 100.0 99.3 77.6 ;9.7 72.8I- 3ZI 7 .! 36.7 61.1 97.1 10C.3 91.9 8. 3 81.1

41 2| 87.7 56.1 83.4 -9.r 97.8 72.2 87.9LE ,-I 67.3 71.6 92.b 99.7 99.5 t .9 92.9Ft 11 2.8 85.6 98.b IO.b 99.8 98.2 96.7GE 112 02.8 94.6 99.5 100o0 98.6 98.8uE SI .1 98.3 99.9 99.6 99.7

E E ;9.4 99.6 1U.L 1EC.o 99.9

VE I7.9 10C.0 iso *Cull -1-i 1r0,C £000.

14188 I 23.8 29.6 33.8 8.9 56.5 65.9 71.' 69.9 62.8 52.0 81.1 9.7 88.1

u I 9.568 9.887 9.369 9.262 8.061 6.536 5..16 5.5C3 7.717 7.990 8.753 9. Co 18.5?1TOJL OPS I 989 88 93. 9CC 930 919 909 868 8o 902 910 961 IC865

._...L_

GL OBAL CLIMATOLOGY BRANCH EXTREME VALUES Or MAVIMUP TLIPEBAIURE

USAFLIAC IFROM DAILY OBSErVATCNS)

AIR %EATHER SERVICE/MAC

STATION NUPEP: 725267 STATION NAML: NIAGARA FALLS IAP NY PERIOD OF RECOPD: 5-b4, t8-A7

WHOLE DEGArES FAHRENHEITALL

VfAP JAN FEB MAP APR MAY JUN JUL AUG SEp OCT

NOV ILC "ONTIS

*as I9 .8 A 0 88 8'. 62 bis2 53 2 67 73 72 91 93 9p 92 79 67 So 93

-13 56 99 67 6A A' 92 91 A! 96 Al b 57 9b

% Ad h1 b3 7- 0 d #0 87 85 AD b '.7 A aS5 '8 Ay 61 76 87 68 4 A! b9 79 65 51 9

S 38 5 C

b0 b 00 Al' 69 87 a5 77 71 5 90

57 5 6f. 70 8 79 93 '.7 89 85 73 63 61 9398 2 4z P 6 78 d2 62 b7 8 83 79 70 '6 08

rN 52 '.5 55 75 AS as ND 93 93 78 70 '9 93

60 39 A7 65 79 8? b7 b861 bb 79 S90 Z .1 'l9 e60 6' 60

(1 I .45 40~ 71 12 7~ e 3 97 r. 1 78 7A 63 '.9 36' 52 A 50 7 8. 90 dap

I8 '57 SI

b9 51 '. 65 7 A a 2 a 89 88 8' 6' '1 927 '.6 97 31 P,2 85 on d8 Be 89 s1 65 61 B9

'I I 7 '7 57 57 60 87 87 8' 06 8 80 72 6 8772 56 39 '5 6' 82 80 A5 88 85 76 63 56 873 57 56 b9 7P 75 as 87 93 9o 75 62 b 97'9 5' 5' 60 76 83 67 a9 86 79 7' 60 '6 69

75 5' 52 59 72 82 a. b9 93 77 77 70 63 976 t ' !65 7' 8' 77 89 a5 93 08 80 S9 '8 93

77 3 '4. 79 8 92 67 9 9 89 70 7 57 9

78 4' 1 51 68 86 90 93 92 85 7z 68 51 9

79 53 '1 71 75 86 96 91 a8 87 al 68 60 93q I 5 ! 9A 59 7V 89 92 9 9C 86 75 62 59 9ZP 1 '9 6' 69 7' 81 ta 88 83 82 71 6 ' ' 08

a so 45 6'. bu 83 82 9 83 86 78 69 7I Aoal '6 55 TV 69 80 92 95 87 87 80 65 '6 9S

............. ........... .....................................................................................................

NOTES IPASLD ON LESS TIAN FULL PONTPSI

B (AT LEASI ONE OAT LESS THAN 2' 065)

CONTINUEO ON 0,Ell PAGE....

GL113A. LIIPalIOGV "RANC (xTrPE VALUES OF MAXz-t' II'-PERAICNIUS AF L A C 4180P4 O111 0bSERVA TUNtS IAIR .FATHER 6Fr8ICE/MqAC

SIT11tN NUMI1LR: 7:5787 S5I110 NAME: NIAGARA* FAILS IAP NV PEOL00 Or PLCOITO: 11-64. to-97

-M...N-T ---% - ALLV I4 JAN F EP MAR APR -!Ai JUN JUL AUG SEP OCT NOV LLC MORT .S

85 $4 59 5 09 A9 AZ 0. 89 47 86 73 70 56 8986 b 49 41 711 69 81 Aa ; 9 86 8l 69 66 QS 8897 44 41 3 76 82 aq 91

IA 99.9t 60.2 63.1 76.7 62.- 87.8 89.5 8 A.6 86 ;.9 77.1 67.0 6.5S 91 .2S I. b- CO. 6 7.625 @.600 6.897 3 f.1 ! 3. 5Zn 7. 661 3.299 9.179 3.919 91.616 T.4 2.593

TOTAL 056 949 98 930 900 9131 918 909 868 A410 902 910 S61 10666

NOTES * IPASID ON LESS THAN FULL MONTHS)A 4I; LEAST 0N1 DJAY LESS TPAN 29 0853

GLOBAL CLIMATOLOGY BRANCH EXTRIM VALUES Or MiNiMU TLMPERATUREuSAFETAC IlRCM DAILY OBSLRVATIONSIAIR w[ATg-(R !R8IC[iMAC

*sAT|iNi NLRLR: 75287 r3A ION NAME: NIAGARA FALLS IAP NY PERIOD OF RECORO: 51-64, (8-87

..............................................................................................................................................WHOLE OLGREES FAHRENHEIT

-M-0_N-T-H-S- ALL

ItA8 R JAN FED MAP APR MAy JUN JUL AUG SEP OCT NOV E'CC MONTHS

Nj I 153 52 45 38 31 -2 352 3 7 16 27 35 86 58 49 83 23 8 12 35.3 e 1 8 28 38 4S 96 49 38 32 27 9 8

54 -3 1 12 12 33 45 50

q6 37 31 28 6 -35 2 -1 11 27 3b 48 S2 51 1 32 12 -4 -

SL c 5 8 24 30 45 51 48 35 32 13 7 87 -16 8 17 23 30 81 49 46 30 29 17 9 -16

5 i 8 -3 22 24 32 37 52 45 40 28 7 3 -359 3 -I a 28 31 45 50 48 36 30 18 8 -1

C 7 7 -8 i7 33 44 49

62 -1 *60 *29 23 -2tJ 3 -A -5 s 26 29 46 51 49 2 32 24 1 *-663 3 5 17 16 39 1 ob7

68 027 2b9 1 6 18 e I 30 43 51 89 2 27 21 -2 -27 c -6 -3 12 23 29 44 52 58 42 32 25 8 -6

71 1 0 12 21 31 47 51 42 Al 38 11 11 0

72 - -1 1 12 34 33 86 u5 83 2- 20 16 -273 7 -2 20 28 37 50 5 51 38 33 17 2 -2I8 e 6 -8 6 21 31 46 53 55 38 26 18 18 -875 a 6 11 19 17 88 s0 89 39 25 29 6 6

I6 -1 -6 9 22 32 41 53 85 57 25 2 0 -10I7 -iO 2 19 17 36 41 53 87 8s 32 21 1 -10

5 5 -8 2 z7 29 42 b1 58 39 29 19 s -81

79 -1 -17 11 19 so 42 52 49 38 32 22 10 -118 c -5 I 2 39 4) SS 57 37 30 2f, -8 -8

93 -8 -1 9 23 38 41 53 5O 38 27 21 11 -8

I -13 3 10 18 38 86 51 40 83 30 22 5 -1343 r I 8 28 38 40 b6 53 81 .6 23 0 0

..............................................................................................................................................

NOllI E 45BA(D ON LrSS TI-AN FILL PONIlN (AT LEAST ONE OAY LAsS It-AN 24 0953

CONTINUED ON KEXT PAGE....

L.

GLOBAL CLIMAIPLOGY BRANCH cxTPrtc VALUES OF 41I'41Ut' TEMPERATURFUSAFETAC IFROM DAILY OISERVATIONS3AIR UEATgPER SERVICEIMAC

STATION NUMTER: 725267 STAIICh NAME: NIAGARA FALLS IAP Ny PEP1OD OF RECORD: S-64. (6-67

WHOLF DEGREES FAHRENHEIT-M-O-N--l-S- ALL

YEAR JAN FEB MAR APR MAy JUN JUL AUG SLP OCT NOV EEC MONT S

.............................................................. ...... ...... ...... ...... ......... ...... ...... ...... .........* $ I -1) 2 -8 29 36 43 48 S0

'40 32 22 16 -o L

t,5 | -3 1 12 21 34 44 52 47 42 26 26 7 3

*b I -9 5 -1 27 33 39 51 R3 39 28 14 13 -9

47 I 2 -. 10 19 34 46

P!EAN I -. 7 .4 9.4 22.5 33.7 '.1.2 51.1 4-.4 3A.4 29.4 18.1 !.s -4.5s f 6.503 5.%23 71.89 *.567 3.039 3.455 .2.35 3.966 3.704 3.315 7.215 S.76 6.275

TOTAL OS I V49 848 930 920 930 918 909 166 40 902 910 461 10865

.............................................................................................................................................

NOTES * IPASLO ON LFSS THAN FULL MONTHSII IAT LEAsI ONL DAv LESS THAN Z4 OBS

L

LAL CLIVA'IOLO&Y Pk I.CH UPY-tUL IL'P[ERATURES UI6 F FOP rFANS ANO 579AUAR DEVIATION$

tSAF(TAC F(-L0 y ObSRVTIG5SAIR WrA7ICC SFPLCE/MAL

*SiTlC NUMnLr: 72'527 Si)IAi, NAME: I I4AGAWL FALLS ZAP PIV PETIOU OF kLCOP : 77-b7

hoi,3SI SiltS I jA% FEfE 4AR APP -AV JUNl jUL fUG pLP OCT NOV IC AN KL 1 T I I

...................................................................................................................................IE A 1 ,z 2. 6 21. 2 ''3.6 41 .3 91 . 7 'r . 6 f695 .2 z .. 9 1;8 .4 47.71 39.5 ; 9 .8a 44 .7

L3-ri S I 1193 11. 4c 10.29. 8.4 34 8.277 7.265 5.3J9 6.370 8.519 8.517 9.031 1C.537 17.518*lo1? Csi 929 r'3

9AL 911C 930 C0 93r 93(1 90 933 90 93. 10952

302 S1 4 1. Ed 0 IL.b 6 8.b7 '#5 7.575 6.179 6.759 e.695 8.182 9.163 10.515 17.328ITO STe0 I 927 943 93, 951, 93; 1U 931, 930 90 933 900 930 10950

71'AN I 2.6 22.21 2 9 .9 4#1.5 53. 1 6,,.9 0(. 1 65.8 '1 8.5 47.2 38.b8 *9 .1 44.9.6-E E Sr I O.34 11.75 I.d67 8.95C 6.683 7.210 5.851 6.457 8.368 8771 9.280 10.531 18.457

SIi C'"S I 42t '43 93. 9c 930 9:,9 935 929 900 929 9 U 930 10949

I '(0 I 23.3 25.4 3 4.o 47.9 60.2 #6.4 7S.0 72.6 65.2 53.3 42.3 30.7 5'0.0

)9 -11f S I I.249 31.189 II .169 10.914 9.66 6 7 .73 5.902 5.793 7.5?7 a. 141 9.620 10.206 2C.029

)ItO 0-"SI 7 046 93L 911 930 V,: 93, 927 499 930 goo 930 10952...............................................................................................................................................

I AN i .57 29.7 3.7 51.8 64. 7.2 7o.7 76.2 A8.8 S6.Q 44.5 22.6 53.4

11-141 S' 1 9.4'8 33.38S 11.75, 11 .64J c.i354 8.214 6 .361 6.c08 A.054 8.457 10.176b 9.917 20.5(61o1 01si 93L 84b 92b 91c 9!c b98 935 929 900 933 900 930 10951

I -LAN I :9. 219.8 38.9 Z.4 64.a 72.7 79.2 76.5 A8.8 '6.1 43.7 -2.4 53.515-171 !n I 9. U7 3,0.84 11.561 11.66 1u .25 i.12 5 6.-13 6.1,4 8.160 8.S67 9,6q4 9.79 20.629

I10 0r j 91 96 92c 9-C 930 9n0 930 930 900 Y33 900 930 30958

...........................................................................................................................................I "189 '!.u 26.0 !. . 47.7 63. 4 c'.6

Ti.1 '2.3 O3.6 51.

2 41.0 20.t 49.7

1-I 1. ' .. t 10.S,5 10.353 10.075 9.35 3,57.6 5.V2 E.021 7.908 8.017 8.991 9.865 19.6u3

I1O1 0AS 903 84 9 3 , C 93U 678 93c 93L 900 930 900 933 10953

I 'LAN. . 42. 2. 72.b 43.4 14.( G U.4 68 .9 67.0 r99 48.9 39.8 20.1 46.3123il 9S, I 9.7!C 1u 985 9.973 8.6b o.392 8.9U7 S.199 5.910 7.879 8*139 9.01q 10.22' 17.953

1 ei'5i1 3 9 83 93. re 9U C97 97k 3 90 930 900 9!3 10950

L "AN 4 . 2'. 1 133. 45.7 97.4 (5.% 72.c 99g.6 62.5 53.3 141. G 30.6 48.3ALL I I 20.131 11.427 11 384 12 93 I,, 67' 9.250 7.958 7.864 9.267 9.05 9.590 10.275 19.399l;wS I (nT O-,SI 74i 675s 743. 720 7440 7193 741 7435 71'9 7439 7230 144( 87611

...............................................................................................................................................

-4 L'e , , ' , ~ ' e e

iLAL rLIMATOLO VR JCH CIT-bUL? TE"PER AIURES D[G F F(O4P MEANS AND STANDARD DEVIATIONSusr nITAC ,UT

L Y O 8EOVA TIOJNAIR .IATHFI SFRVICL/PTC

STAI*1 rjuM'fLf: 7-52a7 STAIIN NAME: N11EjRA FALLS TAP f:Y PEqIOo or PECOPO: 77-67

............................. ~~~. ~~~~~~~~~~~~~~ ..............................................................* ~ ~~~ t,2E . 219 2. ' 8. 4. 09 C. 11 55.'4 44.9 36.9 ;7.9 4.2.1

cc-b2 I s 9 .6S3 15 . 6 9.531 7.42 b . 143 6. 55 5 724 b.516 8.2!3 8.016 8.511 9.999 16.621! TOT 8Sf 6 9 , .4! 904 819 29 9J3 3fl 93C 83 929 920 927 10869

I ft16 I 0 , 1 21.2 27.u 37.2 86.9 EC 81.3 60.? 1 44.5 99.3 36.5 ;7.5 41.3* -:15! 5 I 1U.199 11.144 9.78b 7.944 '..347 7.227 6.069 6.807 P.465 8.263 8.668 10.011 16.595

I lyT oIrs 894 N43 906 SEN 931 9oO 9 5c 93C 882 924 9cu 927 I068

. 'EA ?I. 5.t 71... 38 ..4 49.2 1.4 f43.5 62.4 ;5. 44.6 36. 3 7.. 3 42 .2I-"1 SO I 10.336 11.263 10.024 P.0P7 b.254 6.795 5.563 6.475 b..128 8.329 8.756 10.030 17.3C2

E1 051 ATE 843 910 930 930 90 930 929 892 923 900 927 10869

fIt I "1.' 23.7 71.4 92.3 53.0 60.4 (b.2 65." r9

. 44.3 38.6 28.6 '5.1

.9-ill ' I 9.7E 10.577 9.677 8.872 E.454 6.869 5.479 5.67 7.270 7.581 8.767 9.654 17.530I1ToT OllSI 9C4 892 91, 9{U0 93L 900 930 927 890 926 897 923 19871

I P1P I 23.E 26.1 33.8 44.b 55.U 6Z.0 67.0 66.5 'C.5 50.0 40.0 30.1 46.8l-14? " " 9. Lc 13 .CC9 9.64c 9.168 E.5C4 6 .922 5.482 5.797 7.318 7.545 8.719 9.198 17.201

£103 Cosl 929 346 91. 9C0 930 899 93u 929 882 929 9P0 921 10884

I , 2LS 3. 7 26.2 34.L 44.6 55.i1 62.7 67.0 66.6 '0.4 49.6 39.6 i9.9 46.715 -i7 3 3 sr I 8 g .983 9.38i 8.E8 8.266 6.558 5.325 5.575 7.308 7.416 8.628 9.177 17.151

I OT C-4 5 907 346 9N,9 9..j 932 930 93. 93) 883 930 920 922 10887

PLAN M:E ..1 29. 1 l.. 42.1 .. b .. ' .0 65. 6 4.7 6 ..1 47 . 1 38.0 i8.7 44 .728-2,1 SP I 9.261 I2.29q 9.167 8.374 b.095 6.S18 5 .214 5.729 7.912 7.610 8.508 9.391 17.076

1T1 01,5? 907 943 L 9 "12C 93C 098 932 930 881 929 899 924 10880

I "11f.N I I .'U 22.17 29.9 3 9 .6 49. 7 IS7 .3 63 .3 82.6 li6 .4 45.7 37 .2 2 8.-2 43.0:1-231 sr I 9.77 IU.959 9.24, 7.7! 7.831 1.592 5.396 6.255 7.760 7.613 8.609 9.713 16.679

ITUE os1 9C2 943 95'. 920 930 k i 910 93C 8R2 928 899 925 10875

I PC7 A -'2 .0 2 3 .4 30.'. 4 C .9

91 .2 '6F,.7 C69.51 63.4 S7.5 46 .8 37 .9 28.5 4'4.0ALL I s5, I 9.60 13.751 9.85c 682b 6 .765 7.2S9 5.911 6.46C 8.052 8.112 8.739 9.696 1.139

40UPS110I E'2S 1 '213 6749 727t 71.9 74!9 7193 7445 74!t 7055 7413 7195 7396 87003

.... ... ... ... ... ... ... .... ... ... ... ... ... ... ... .... ... ... ... ... ... ... .... ... ... ... ... ... ... ..-

I-

GLOAL CLIMAIOIOSY 9A65C- UE.-POI'AI TPtPLRATLRLS DEG F FROM MEANS AND STANDARO OCVLITIONSUSAFETAC FOURL OBS[VA7IOftAi[f .EA7KlP SARVlrE1MAC

5 1AT5710 NUVrLP: 75287 STATICN NAME: NIAGA a FALLS IAP NY PE1100 OF RECORD: 77-87

I OLAN I 16.9 17.6 24." 3j.A 44.0 92. F9.5 99.8 93.2 '41.8 33.2 23.7 38.6 ,

-21 5) I is . 2 75 1.b6, 9.089 9.759 7.908 6 .59L 7.22L 8.976 8 . 791 9.516 11.278 17.828 ?.,

TO? ,S, d9. 943 9p9 a94 929 930 930 90 683 924 900 927 10869

I V^N 1 6.7 17.1 23.5 33.3 43.6 52.5 99.2 99.0 '2.6 '11.5 32.8 23.4 38.1

_S-51 So I 11,.5T 12.272 10. 76o 9.152 9.615 d.015 6 .756 7.418 9.014 8.862 9.634 11,193 17.8C9Sl O3I 394 343 906 9C0 930 900 935 930 882 924 900 927 10868

MEAN I 16.5 17.C 23.b 34.0 r S.c 54.0 60.7 60.1 93.1 41.7 32.7 23.3 38.726-CMI SO 1 11.229 12,497 11.007 9.352 9.695 7.875 6.473 7.260 8.832 8.963 9.635 11*178 18.281

I TOT 015J1 895 843 91L 9!c 930 90 930 929 882 923 90 927 10869

. . ............................................ ........ ...................................................................* "LAN I 17.4 1A.8 25.S 35.5 46.4 54.6 (6.8 F0.9 54.6 43.3 33.8 :8.0 39.8

* .9-i:I SC I 10.934 11.?61 10.804 10.01 10.595 8.774 7.399 7.303 8.7C1 8.969 9.845 10.913 16.182S1301 OrtsI 97 P4 2 9Il 9cc 930 900 930 927 880 926 897 923 10871

12-141 S C I1G.45 I 1.656 10.6C? 10.500 11.110 9.C73 7.829 7.942 9.201 9.385 9.797 10.641 17.850*ITOT OPsI 909 4 6 91u 9c0 930 898 930 929 892 929 900 921 10884

.. ... .... .................................................... ...................... . ......... ....... .... ........... .... ... ..........:,(,N I 16.1 25... 26.4 76.2 46.1 cz9.5 99.7 ,0.6 94.3 43.0 3.1" 24.7 40" .0 '

19-17l SE' l 15.531 11.657 I.67 10.425 10.950 6.405 1.891 7 9.222 9.20 9.86? 10.698 11.1594 A OT 075? 907 946 909 910 970 930 430 430 883 930 900 822 10887".

I "085 I 11,1 18.9 25,4 35.2 45.7 93.6 9.1 0. 2 94.0 42.7 33.7 ;4.1 79.319-2LI S. J 1.840 11.632 10.725 9.923 10.585 6 .709 7.603 7.327 8.642 8.873 9.757 10.833 17.8C0

I TOT OR s 9"7 8 3 9n9 92c 930 898 930 930 881 929 899 924 IC8

................................................................................................................................................I -LAN 1 i 6 .e 19.1I 2b.6 34 .5 44 .8 t3.3 59.6 6.0.0 R3.7 42.2 33 .2 ;3.8 38 .q

21-,31 sr I 10.677 11.875 10.751 9.24C ;.811 7.971 6.b!8 7.389 8.652 8.801 9.816 11.094 17.824

I101 OQsl 902 843 909 90C 9 3

D 497 930 930 882 928 899 925 10875.. o...,.............oo...o.....................oo.o.....o~.°. .o....... .......... ,.........°°.......,....

I "L^? I 17.2 19.4 25.L 34.9 45.4 '3.8 59.6 60.2 53.6 42.4 33.5 28.0 39.2ALL f SD I 10.43 11.993 10.824 9.7b6 10.337 d.443 7.214 7.452 8.931 9.108 9.744 10.987 17.930

"a0(Js5I101 05s? 7213 674q 727b 7191) 7439 7193 7440 7435 1Q55 7413 7195 7396 67003

L.

(L3bAL CLIPAIOLOGY BRANC- CLMLLAIIVL PLP(ENYAGE FPLL'rtNCy OF OCCURECE RELATIVE HUID1TY

uSATrIAC FPOP I-OURLY UpFRVAIIONS

AI1 wFAyHIEl SrRVICEIMAC

STATION NUMIALF: 7Z5287 51A1ION NAME; NIAGARA FALLS IAF 4Y P O7100 OF RECORD: 7q-87

MONPI: JAN

MONT FI OURS I PERCFNTACE FREOUTFNCY or RELATIVE -IMTTIIY GREAIEP TVA- I MEAN I TOTAL I

I (LST ........................................................................... IRELATIVEI NU1 I

I 1L! C 3 L.4I 409 SG 60% 7"% 80l 902 IHUMIDITYI ObS I

I IJ AN I ru-c? loc. C.r? 100.0 9S. 7 96.6 92.4 72.9 47.4 17.S 18.3 89!

I LI 1J'.'L I iv 100. 100.0 99.7 97.5 9.3 0U.0 50.9 2r.6 19.8 894

I II b-Go I !00.q 10 .0 100.9 1oc.C 98.1 S4.6 41.5 53.5 21.5 90.3 89!

I II I cc-f (O .S -, I .9 !, 00.0 99.9 99.|1 9 1. 2 73.2 45,.4 17.,3 78.,1 904

IZ-14 10., 1oc.r 100.0 99.0 96.4 83.9 60.4 32.E 11.0 74.0 909

15-17 100C.7 100.0 100.0 99.4 95.0 b3., 58.7 33.3 10.5 13.5 907

16-Z,7 100. 0 1O.C 100.0 99. 96.6 90.2 67.9 4C.7 15.2 76.5 907

21-" IGO.- c. 10.0 I J.f P 9.0 97.1 09,R 72.4 42.5 17.7 77.6 902

1 lTLS I .3 G.0 10C.0 99.7 97.1 90.7 7C.9 43.3 16.3 77.3 7213

......................................................................................................................

L

bL ;6AL CLI AT OLOGV RIR3NCH C UIIJnTTVt FEPLENIAGL FPEQU NCY OF OCCUPRENCL PELATIVE HUMIDITYUSAFE[AC FOM I-OURLY URSFRVTIONS

AT R .[Ar)Ek SERVICE/M4,

STAI(.N NUPIPLP: 7,'528 1 SAIION NAME: NIA(EF.G FALLS IAr P:v PEPIOD OF RLCORD: 7P-87-ONTIP: FEB

T tU, IE CE t ACt FRECU[NCV OF RLLATIVE .IPMIITY .GRFATER TIAN I MEAN I TOTpLILSTI I... ........... o. ..... . ........ ........ . ..... . ..... , .,,.. . .IRILATIV I NU"

I ). 2C% 3,% 4Cl 407 631 7L eCt 90% IprIDITYI 08 1

FLAI tO-C2 I Ion. oc. 1.C 1C3. C 99.8 94. 17.5 47.8 17.6 79.4 843

;'3-C5, 1-c.j if".! 10C.0 ice.C R9.5 96.q 7q.8 49.7 17.6 80.1 043

n 6-CA 1 co. If. C 1130.0 99. q 9q4. 4 5.1 b1. 7 52. 3 17.6 90.3 843

I9-11 I !n.o 10L.C ILL.° 99.11 96.7 8.' 64.5 39.3 14.0 76.4 84

12-14 1 I-*.i 1jo.,r 99.0 98. 71.7 76. t) .5 27.1 8.5 70.9 84t

I 15-17 1 1Do.z ICc .E 99.6 9e.3 91.8 75.2 Sn.? 26.2 11.1 70.7 84t

l-2 , I ,. . 1OO0. 91,. 97.2 b?.1 63.3 31.7 13.2 06.9 843

:1-2! 1o.L Ici .C L,.G IL. L 99.5 ,2.? 71.1 42.7 13.5 77.5 84!

I ICTALS I IC.? 122 *,C 99.4 99. 4 96.0 68.7 b7. 39.6 14.1 76.3 6749

... .. °...°... .. .. .. .°.. .. . °.. .. .. .. .. °... . °°L

IlLOUAL CLIPAICILOGY BA . CL'MLtLAlIVE PLRCENTAGE FFLCLENC9 OF OCCLPRENCE RELATIVE HUMIDITY

USFETAC FPGM FOURLY OfSfPVATIONSAIR 4tAT1IF SERVU(EIHC

51ATIC hUMYLT: 7U 21 71 STATION NAME: NIA6ARA FALLS TAP NY PiEPO OF PLCO0: 7P-87vONTI: MAR

VONl j 1440o I pERCFNIAE FRpCurrCy OF RELA7 IVE FItMIDITY GRrATEP T44N I MEAN IOTpL

U S (S! I............................................................................. IRELATIvE NUI I

I I Lt ZT 3L% 40G 525 601 701 8C% 90t IHUMIDITYI 065 1

I I.At, I I L c.Z 1 Cu .C 100.0 9. 97.9 a9P . 69.9) "5.8 18.6 77.6 9 C

I II 3-1:t ir .I ,L1.. r 1UD.0 99.9 97.7 91.6 75.1 51.9 2C.6 79.2 908

7 '6- A 13, 1E0.C 10.c 59.1 96.4 90.1 75.2 53.2 24.1 79.4 91[

I 9-11 I a ,.r 100 9'.8 96. 2 i8 .5 72.4 51.2 32. lilt 712.9 q5

12-14 Ic* I0.C 9.,S R.8 75.9 56.1 33.6 2L.9 9.0 64.1 91t

I S5-1 I I n. ) 13X0.7 M 47.2 9 1. 1 73 .7 52.7 33. 7 19.8 9.0 63.5 go.;

16-2" I . 100 .C 99.8 97.4 87.6 71.1 48.3 28.4 11.1 70.1 901,

21-21 I !LL.- 1C2.0 U.0 lo.r 96.1 a4.2 b2.C 38.7 16.1 75.2 904

On 118n I : 10.0 q49.4 56. 6 69 .2 76. 5.0 36. 15. 3 72.5 7278

L

- -

IJ AL CLIMATCLCG S AIJCH LUMULATIVL CEPCENTAE FFLOUEKCY CF OCCURRENCE RELATIVE HUMIDITY. AFLI C F!WoP OURLY 08E VAT IONSAIh .[aTFV SEVICE/FAC

51AIION NUMdLF : 725787 STATIOf NAME; NIAuARt FALLS TAP NY PEIOD OF 8EC08O: 7n-97"ON.: APR

rOr.If HOURS I PERCENIAGL FRLCUENCy OF RELATIVE -UMIUITY ORFATER TAN I MEAN I 101L I

.. I (L. I................................................................................IRELAI.I NUt .

*I fANR DO-C' I I CC 10.r 100.0 99.7 95.P 63.5 64.1 43.5 18.2 76.0 89%6

C '3-25 I1 101 l.. C 100.0 95. 96.6 68.4 69.; 50.0 22.1 78.2 90C

I 6-L I Io.3 Ic.2 i00c. 9P.7 93.4 '2.1 64.9 43.2 19.8 76.0 90E

II1 9-II I I 1. C y. .7 ye .7 76.2 57.1 36.6 23 11.2 64.9 90L

Ir-I 1,r.5 99.. 94.1 R.9 61.3 4?.' 27.6 1!.9 6.0 58.5 901

Iti-17 I 11C.? 0 9.6 93.1 77.8 57.9 40.7 27.9 13.6 6.6 57.9 90L

lb-2 1,;0.3 99.9 97.4 9.? 77.2 56.1 36.2 2C.6 8.2 64.5 9CL

I 1-23 1 1,n.: 1C .c 99.9 97.9 91.4 75.7 52.8 32.? 12.2 72.1 90(I

I I(-TtS 1 : . 9 q* 97.9 91. 7 81.2 65.P 47.4 30.3 13.0 b.5 719%

...

Li

F.

bLJbAL CLIIATOLObY WAIJ-CF CUMLLATIV[ PERCENTAGL FrILOUE NCY OF OCCLIZRENCE RELATVE LHMIOIY

JSAF tAC FROV1FD OURLY ORCRVATIlNSAIR f ATHFR SFRVI(L/tMAC

'TATION NURLF: 7 52:7 STATICN NAME: NIAGA rALLS IAP NY PEQIOD or RECORD: 7-87MONTF : MAY

MONTH; HOURS I PERCENTAGE FRIOLtCy OF RELA71YE 1UMIDITY GREATER TlAN I MEAN TOTAL

I ILSTI I ............................................................................. IRELATIV IE NUI I JOI "Cl ]L,% 401. SO%. 501 7,C% ec% 903 JHUMIDITYJ OBS I .

MAY LO-C I 1:0.3 ,:o.r IOC.O 9p.9 95.3 63.6 b4.7 39.1 19.4 76.2 921.

-"3[C - c.n 1 30. 100.7l 99.6 97.4 90.2 76.5 50.A 26.1 79.8 931

I -se 1 cO.n I1f3.C 99.9 99.7 93.9 2.2 63.3 38.2 17.2 7S.3 931

I 9-1 ! 1r, 'n . 0 1 .1 98.! aF.9 71.3 53.9 31.3 18.1 6.8 62.5 93L

I - I ICO .c 99 * 7 93.5 74.1 57.1 37.0S 22.9 12.9 5.3 55.8 931

15-17 I I1]. 1 9.7 93.2 70.5 55.2 37.5 2r.9

11.8 5.7 55.1 93E

I 1a-27 1., 1 99.9 971.4 b9.9 6P.7 49.1 29.7 15.3 7.2 b.0 931

21-5 I Ico. I 0 0.c 99.9 97. 7 99.7 7z. 50.4 3C.4 13.0 71.0 931

1101L I O T rc.c q9.9 97.8 89.2 79.6 b3.3 45.0 27.1 12.6 67.1 743%,

L.

GLO3AL CLIMATCLOGY rRAINCH CUMUL i IV PEP(T A G6 IPLCQUr4CY OF OCCUq[RENC RELATIVE HUMIOITY

LSAFLTAc rPO' Y OUPLY O! S[VATIONS616 6111:6p SCRVIC(/MAC

STATION NtIMYEF: 7.287 STATION NAME: JAGARA FALLS lAr NY PC :IOU OF PECOAD: 7-8 7

MONTp: JUN

.....................................................................................................................................M;O.1I lIOUWS IEI PC CNTA GF W~tU EN V OF RELATIVE VUID Y GR FATER EVAN I MEAN I TOTAL

I LSTI ............................................................................. IRELATIVFI NU

) 2 0 3.. 4c% 10 6c t o u 90% |ptL"1flYI 06 1

JUN I | I f'.F

ICC.O 99. 90.0 92.7 7.6 47.1 17.r 79.1 901

I 3-Z I 1,c . - Io cc. 1..0.c Ion. L 99.9 49.6 b63. 2 60.1 23.0 62.2 901:

- 1 c. 10 c 100.. c1.9 97.9 85.9 64.6 39.e 12.7 76.1 90L

'I9- I n.0 13U.C .9 94 , 76. i

S1. 7 9.3 IS.A 4.6 63.1 901

I z - 1 'o.' 1 3 , .r 98., A1.3 59.1 36.6 17.3 8.9 2.9 56.2 89t

1 -17 ; I 10 0.0 9r6.3 7E.' 55.2 39.9 1.2 8.9 2.3 59.9 90L

Isz 'co.ft 10 .C 96 f 87P.6p 69. 7 49.4 29. 3 13.8 9.P 61.3 896

I21-2 Ioo I910. 99.7 95.3 78.3 56.7 32.2 10.1 73.1 897

ITOTALS I c.: I130.7 99.1 93.1 81.6 65.2 46.7 28. 3 9.6 68.2 7193

....

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GLJbAL CLIPATOLOb HFANC- LUPLLAIVA PERLEPOAGL FO1L'NCY OF OCCL'PRENCE RELATIVE HUMIDITY r

USALITAC Th0M -OURLY O'STRVATIONSAIR .FATHER SFRVIfC/MAC

STATION NUP;LP: 7.5281 STATION NAME: NIAGAkA FALLS IAP NT PERIOD OF PECORD: 77-86"WIT F-: JUL "

............................................................................................................................MONt

I HOOPS I PETCrNTAGL rP[Qu2tNc or ELATIV HIOIIY GREAIE U-AN I MEAN I 1O1L

I (L511 I ............................................................................. IRELATIVEI NUP I

I I ILT 2c 3L% 4C C% 0? 6 7 7 z8 90 1 HUMI I 1 013 1

I IJLL I "IL-(' I CC.2 cU.C ICO.0 10 f,. 99.3 96.2 81.9 46.6 11.p 79.6 93t.

II -S cc 1. 12.r I O.0 102.C1 99.6 98., 9,).6 63.9 22.3 83.1 931

I :6-14 I ,21. 1101.12 IC0,0 1012. 98.9 92.6 12.6 43.4 11.12 77.7 931.:

I IS I I I, I r 99.F 95.5 80.5 53.2 27.8 12.9 2.4 62.6 93

I I1 12-1 I' 100.3 100. 98.4 83.

n 52.9 29.7 15.7 8.2 1.5 54.6 931

I,.- 17 I U:!.n 111C.1 97.3 77.' 4e.8 27.1 14.4 5.9 1.4 52.9 93t

I 6- z I o:1 11" . c 48.9q 9G. 7 6R.02 43.? 25.2 9 .5 1.8A 59.3 93t

t2-2 1 I j...c 1123.1 I cc0. 99.9 97.1 87.4 57.4 31 .2 h..5 73.1 931

1 1O)ALS c . L I '0. 9q.3 93. 83.7 (".5 43.2 27.9 7.3 67.9 7441

L

I-U

GLOJAL CLI"AIOIOGY SPANCH CUMULAIIVE PLREENIAGL FFL.OUENCY OF OCCUPRENCE RELATIVE HUMIDITY t,

USAFLTAC FPOM HOURLY OFSERVATIONSAIR i.ATPER SERVICE/MOC

STATION NUMPEP: 7'5267 STATION NAME: NIAGARA FALLS IAP :V PERIOD OF RECORD: 77-86MON7i: AUG

....................................................................................................................-O41HI HOURS I PERCENTAfE FREQUENCy OF RELAIlVE -UMIDI1T GREATER TIAN I MEAN I TOT*L ;

I (1513 I............................................................................. IRELATIYEI NUP II I 202 3i% 4UT 90% 60. 7o got 901 IILMIUITYI OS I

....................................................... ............................................................................

AUG LC-C I C . I CC.C .IOCO lo0. 1 100.9 99.2 92.5 66.2 16.' 83.6 93-

-5 I2a.C IZL .C IC.C l0t.,t 99.9 9P.6 95.6 77.4 23.8 85.7 93E

Ib-p Iuc, ioC.C ioc.r 10.C 99.P 98. 86.7 6P.4 17.2 82.3 92%

Ig9-!! ! 0oo Iou. 99.9 9A.9 9C.9 68., 61.3 19.3 3.9 67.7 927

12-14 1 1.a IO U0. 99.7 9.4 70.7 44.9 22.2 9.8 2.3 62.0 92-

I15-17 I1 C1.3 100.0 99 91.0 69.9 90.7 22.2 I0.9 2.2 59.3 93L 3.

18-2' I v7, 101. C 100.fl 10". 89.1 .,2 41.6 19.9 3.8 67.6 93.

- 1-2 lc. I OE,1 1. 10O.C lo.C 99.9 9 .6 76.3 45.7 e.e 78.4 93[

IT7ALS I 102. ioc.f 99°9 9P.' 90.0 76.1 59. 36.b 9.8 73.1 7431

...................................................................................................................................

GLtflAL CLIMATOLOGY EANC- CLML*LATIVE PEFL(NTAG Ft'LOVENCY OF OCCLRENCE RELATIVE HUMIDITY

USAFTAC FZOM -URL) 0ISFEVATIONS

AIR nEATHER SERVICE/MC

STATIVU NUMtER: 75267 STATION NAME: NIASARA FALLS TAP CTY PL02OU OF IHECOPU: 77-86

MONTI: SEP

01.1HPSIPPCr9TAGE r

8L~ut

0FCV FRLTV 1-IITUTY GREATER 1I'AN I MEAN I TOTAL

I (LS 1 I ............................................................................. IRCLATIvEI NUr II I TA 201 Llt 4L' 501 60% 7ri 80t 902 IHUMIEITI 085 1

....................................................................................................................................

SEP CG-C2 1 n I J .0 I1a0., 1o00. 100.0 98.4 89.9 65.7 20.8 83.2 883

3- C3C I I I."J. . oC IC.0 10c.C 100.0 9M.C 93.3 72.6 29.4 85.3 8;

3 I "C C. 1c. C 99.9 99.7 99.5 98.1 b8.4 62.5 21.7 82.9 88;

IA-11 I1 c.,- 1). 99.9 99. 94.3 72.6 44.3 24.4 7.2 69.9 88L

I e -14 I1 0. 10. C 99.9 96.1 74,9 46.1 27.3 14.5 4.9 62.3 08;

* !5-17 IC0 o.: I 0l. 100.0 94.! 72.4 47.2 2q.8 14.3 4.1 61.8 883

I la-z' I 1:0.3 100 00 I.0 99.4 95.1 79.9 55.1 28.7 6.7 72.1 881

1 71-2 3 I 1 v U 1 000 IUOC I C. . 99.9 96.9 82.9 51.4 14.5 89.4 68;

ITOLS Io1115 Io .0 100.0 98.6 92.0 19.6 63.8 41.8 13.6 14.7 75

....................................................................................................................

biLdAL CLIPATAVLubV 9iaNCIl CUMULATIVE P'LRLENIAGL FREQUrNY OF OCCURRENCE RELATIVE HUMIDITYLSAr EAC FkOY [UURLY O[tS[RVATIONSA8IN .(A I REf SFRV I cc/M8 0A

'TA10N NUM-:LTZ: 7252E7 STAlIO NAME: NItGARA FALLS TAP NY PLPIOD OF RECORD: 77-86MONTI: OCT

ILSTI I ............................................................................. ILLAIVEI NUt I

IL jlA 31%tl. 402 ILI 60? 7C Vt? 90% IPLMHIDITTI 067...................................................................................................................................

OCT c .I 1. 1G. C l(c.0 lOt." 9.9 94.9 a3.6 52.2 17.6 90.2 924

'3-Z S I . 10Cc 1(1.0 100. 99.6 96.6 87.2 59.2 19,7 82.3 924

I6-Cft !t.l Ic0.2 130.9 1oc.2 90. 97.7 83.9 56.7 19.3 81.5 92!

"9-I 1 l'.C 1l0(. r 100.0 99.5 91.9 73.2 44.8 22.5 7.0 69.8 92L

12-1k I o, C 10I0o . 99.2 93.9 76.3 98.4 2b.6 12.6 4.4 61.8 92

15-17 1 I I .*fl 1., .Q 9e.p 93.9 78.1 53.1 3).r 15.7 5.6 63.3 93L

1 I6-2- 1:0.0 2IC6. 2I0.0 99.2 97.1 81.e 57.4 28.5 10.2 73.8 92,;

1 21-27 1 so: 1c.C 1(C0.0 9q.9 99.1 90.? 7S." 92.7 14.7 78.1 92t

ITOIALS I loc.,, 100.0 99.p 9e.2 92.6 79.6. b0.7 !6.3 12.3 03.8 7853.. *........*.................*...........*...°*............*.....*o...*......**o..*.*...........................*.L.

bLiAL CL1PMIOLOGY LANC CLML:LAT 10 PRCLNTAG[ FPEQOIrtJY OF OCCIRRENCE RELATIVE HUMIOITYISAFETAC FP00 101161 OSfRVATONSAIR WEATHrP SfRVIrr/MAC

S3TIO NURE0: 7?5267 STATION NAME: NIAARA FALLS IP JY PEPIOD OF RECORD: 77-86

MO9TI7: NOV

* 2NT1I

L200S5 I PECFNTACE FplouRt, ELOF PLLATlVE 1IM]1010 ORFAIEP T-AN I MEAN UTOgL

I ( 512 I ................................................................................I.LATI.I NUP .*I I Ic zr'1 3 .t 402 900 600 7

0o 8f 9O IHUMIDIOVI 085

(-V I U- J'7 IL 200.c 1u.C 99.9 99.0 93.6 73.2 46.2 19.2 78.8 901

* I7-r I Co 1C0.C IU.C 101.2 99.6 93.9 73.3 4E.0 16.8 79.0 90(

6- r,r. I . ic.c ICO. 1o.: 99.6 94.3 76.6 46.6 19.6 79.3 90L

S.9-I I 0. c 10.0 99.9 99.2 95.3 8.7 56.4 34.3 13.5 73.6 697

1-14 1:0.7 100.C 99.2 96.7 87.0 69.3 40.8 25.6 12.4 69.9 90L

15-17 10.2 1OO.0 99.O 98.1 91.1 71.2 44.8 2E.4 13.8 70.5 90(

l18-27 1 I tc 103.0 IUO.0 99.6 96.7 68. b2.3 35.4 17.0 75.9 89S

2 1-21 1 ].0.L I ., 100.0' 9.7 49. 91.' b8.5 43.0 18C 77.8 895

1 Ot AL zC.S I C .0 99.9 99.2 96.3 65.5 62.0 38.7 16.5 75.5 719!

L

V

L')HAL CLIMATOLUG nR4PJCM CUHULAIIVF PEPLENTAGL FREQUENCY OF OCCUOPLNCL RELAIVL HUMIlUlly

USkFrTA0 FIG- -OURLY CBSEIVA7InNS

TATIO NUM0L: 772S7 STAFIION NAHE: NIAGARA FALLS 1AP .Y PE'100 OF 4LCOU: 77-86MON11-: rDE C

.....................................................................................................................................* MON.TH 4IO065 I Pf PCF NIAcE FRLQUENCy OF 1LATV IIIMIUIIY GREATE IlRN I MEAN TOT/LI

I flS I. MELA I T1406( LSFI ... ..... ...... ....... . * . ..* ., ..... .......................... .. . .... . .o [LA/ V I U t |

I I 6% 2, 3% c)0 65?1 7 Ut E7 9O% Ii-ItITYI 09S I

.....................................................................................................................................

Z)L . r-C Ij. I~o. 1U. 150. 1.0 97.f 2 5.8A 13.6 47.Z 18.2 78 .7 927

I;7-2 I 1 I 10.0 150.0 10"0.0c 98.9 74. 76.4 48.8A 19.8 79 .3 927

-I - 1 o.D II .: IUC. 1q. 9 1.1 9.1I qq. 76.5 49.4 27.! 79.6 927

Ifa i-I I In 107 0.0 99.7 97.4 90.1. 66. 1 4C.2 16.6 76.7 92-

I12-14 I 1-,lj . 3510.0 87.L 94 .2 45.' 32. 2. 9 14.9 73 .2 92 1

15-17 I 1:.7 100.7 200.0 99.1 94.5 52.- 99.7 36.1 17.9 74.1 92i

Sl-zc Ir r.f I G 10.c 100.0 IG.r 97.C 9n.5 64.7 41.6 18.7 76.9 "24

I i-2 I :1n .2- 100G.0c IuO.C IL0V.1 117. 2 92.2 7.9 45. 3 17.5 77.9 925IIIOT LS I G . 10o. 105.0 99.7 97.C 89.1 68.! 92.7 16.9 77.1 739(

.. . . . .. . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

*D-A186 573 MI igA FAtLLS OlNUVR(IV~E PI 1 ~ FtY0 4/4

UNCLASSIFE iM* 'CA FfUW R~~~~

ULL

1-26*1

GLOaAL CLI'ATOLOGY DRANC- CLMULAIIV[ PLRCELITAGL FRQLL'ENCY OF OCCURRENCE RELATIVE HUMIDITYUSAFETAC FPOM iURLY OIIS(RVATInNSAIR WFATHER SF.RVIC/"CIC

STA1101 NUMBER: 775267 STATION NAME: NIAGAkA FALLS TAP NY PERIOD Of RECORO: 77-87

HONTp: ALL................................. .............................................. o........................ o.........

IO:.THjU. ..RS . PERCENTAGE FPLGUE14C. OF RELATIVE.1-UMIITY. GRFATER TiAN . MEAN OTAL

S I ............................................................................. IRELAITVE MUI I 1o 201 31A '43 50 60% 7o1 8CT 90 |HUMIDITTI OB I

JAN I ALL I ic0.f 10O.C 1GO.c 99.7 97.1 90a.r 73.9 13.3 16.3 77.3 7213

FE I 1CC.3 130.0 99.9 99.1 96.9 88.3 67.8 39.6 10.1 76.3 6709

A i 30.: 100. 99.4 96.6 89.2 76. 56.C 36. 15.3 7z.S 72

AP:4 Icv.0

9S.9 97.0 91.7 81.? 65.! 47.1 3C.3 13.0 68.5 7199

MAY 11C.0 99.9 97,8 89.2 78.6 63.3 4S.0 27.1 12.6 67.1 739

SJU I 10C.3 1oC 99.1 93.1 81.6 65.7

16.7 28.3 9.6 68.2 7193

JUL I!n.o I0G.C 99.3 93.3 60.7 65.s 18.2 27.8 7.3 67.9 7910E

AUG I 1 ,I. 102.0 99.9 98.0 90.0 76.5 59.8 38.6 9.8 73.1 7I3'

SEP :uo.a 102.e 100.0 98.6 92.0 79.6 63.8 11.8 13.6 78.7 70 5

OCT IcC.0 100.0 99.8 9e.2 92.6 79.6 60.7 36.3 12.3 73.8 7813

NOV 100 .0 130. 99.9 99.2 96.3 85.7 62.C 38.7 16.5 7S5. 7195

DzC !0n.o IOL.0 100.0 99.7 97.0 69.9 68.3 82.7 16.9 77.1 7396

T1OTALS I C. 130.c 99. 96.1 89. 77.1 58.1 35.9 13.1 72.7 R7303

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PRESSLEE SUIMMARIES

STATION PRSSURE SUNMARIES

S ~ ~ ~ ~ ~ ~ ~ ~~~~i "NRZDB H TNAD3HU IEGOP YMNTH, MNTHLY AND ANNUALLY tALL YEARS COMNII.

PEESEMTEO ARE THE NEANS, STANDARD DEVIATIONS AND OBSERVATION COUNTS.

SUMARZE ARE THE SNAR lowsU TIEGOP Y MONTH* MNTHLY AND ANNUALLY IALL YEARS CONSIREDI.

PRESNTE ARETHEMEAS TANDARD DEVIATIONSANOBEVTNCUTS

~m-40L

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GLOBAL CLIHAIOLOG6 BRAiNCp STAIJON PRESSLRL IN INC1f$ PG FROM PCANS AND SIANDARD DEVIAIIONSUS XFETAC 1DURLY oUSLpVAIIONSAIR ,EAINP SERVIE/.AC

STATION NUO09EP: 71-S287 STATION NAM9E: NIAGARA FALLS IAP NV PERIOD OF RECORD: 77-67

-OURSI STATS I jAN FEB MAR APR "AV ANm JUL sus SEP OCI NOV LEC .0p.LSI I

I Pl AN I 93. 2912 2.S 29.30(7 29.325 29.•3ZO 7935 2938 2913 29123 2.10 9.8 2.

01 I SO 2 .301 *257 .2S9 .i33 .169 .1bO .130 .128 .168 .226 .21.? .272 .2231101 OpSI 310 282 JIL 300 310 300 310 310 S00 310 300 310 36S2"

0". 1 So .3C9 .261 .266 .239 .1. .16b .135 .131 .173 .232 .244 *273 .227I OT CGISI 31L 2s2 31. 3001 310 300 310 310 300 310 00 310 36S2......................... :::::::::::::::::::::::::: ... ......... o ............ o::::::::::: : ......-........ ..............I MEAN 29.346 29.130 29.561 29.323 29.3.7 29.3.2 29.371 29..04 79.40 3 29.134 29.19 29 39"

07 I So I .315 ,266 .271. .28 .176 .171 .136 .136 .176 .239 .21.6 .27 ,231"107 6115I 31L 282 slu 3Co 310 SOo S10 310 300 310 300 310 3652

.......................................................................................................................................

I "AN I29.37U 29.441? 29.37!b 29.329 29.3S3 29.34.? 29.376 29.111. 29.1.1.3 29.001. 29.4.3S 29.131 29.396c I Sp I .317 .271 .262 .253 .180 .170 .137 .132 .180 .241 .217 ,27 . .235

M1Y1 O1sf 31C 262 13(A 30 itSl So 310 330 300 i1 300 310 3652

13 I Sp1 I .311 .269 .28L .24S .176 .165 .133 .126 .173 .242 .21.6 .270 .2301101 OSI 310 282 JIG 3GO 310 3oo 313 31C 300 313 So0 310 36S2

EAN I 29.336 29.10 29.33,c 29.291 29.331. 29.313 79.312 29.378 29.100 29.06 29.391. 29.571 29.37S

1 P i .30? .261 .267 .23L .172 .158 .132 .12 .167 .233 .2. .265 .225"101 uPSo 310 292 310 3CO 31C 5330 310 310 300 330 300 310 3652

.... . .N' "'"29.357 29.1.26 29.S 29.301'"'''''"'" "'" 29.;315''293312"7.3 29.37'' 8 ];'29.1.05 29..21.'29.1.06''29.39 .367 .. .".... ...... .

19 I Sps I .297 .2 91 .251 .220 .161 .1,2 .126 .122 .166 .227 .21S .265 .219ITO OqSl 31C 282 31W 30 310 299 310 31C 300 310 300 330 36S1........................................................................................................••....;:;.;;;;.:::::::::::::.... :........ .I £8N I| 29..q30 29.360 29.331. 29.330 29.328 79.515 239 2911 29.1. 91.6 931 2.376

22 I SD I .296 .251q .257 .223 .169 IS2 .122 .123 .167 .225 .21.7 .270 .220"lID 00SI 330 282 31u 3f.O 310 299 3IG SIC 300 330 300 310 36S1 t.

I Ip 9316 2.126 29.351. 29.309 29.330 29.326 29.5sS 2932 29,' 2..6 9131'.ga 2.7

ILL I SD .306 .262 .266 .236 .171. .162 .132 .128 .172 .23 .21.6 .270 .226".00ouR1o0 0otsl 210C 22S6 241PL 21.00 21.u 2398 21eu 21.60 2100 21.80 2.00 2.80 2921............................................................................................................................................

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GLOBAL CLIPA70LOG 614ANCF SEA LEVEL PRESSL'RE IN fqPS FRO- "EARS4 A10 STANDARD0 DEVIATIONSu SArr Ac 14OURLV OESERVAIIONSAIR IwLA1TNER SERVICC/HAC

STAT10N NUMPLRt 72'5287 STATION NAME: NIAbARA FALLS IAP &V PERIOD Of RECORD: 77-87

I~O6.it: 511 JN FB PR AR A N ~jUL ALO SEP OCT NOV EEC ARN

LSI

I 4EAN 9 1016.2 1018.9 101b.4 1016.6 ICI4.7 1016.6 101b.4 1016.5 1017.7 1o18.z 1016.1 1017.6 1016.5at I e SO I0.!.58 9.1:91 9.126# 8.111 5.907 5.5561 6.482 61.63 5.948 7.933 9.b2% 9.514 7.026

I1O101 u 310 281 Stb 301: 310 30.0 31IG 310 300 310 300 310 3651

I RE. I126?1AB7 106& 1016.2 1016. 2016.2 1015.2 1016.6 10l7. 6 1010.1 1018.0 1017. -5 1016.606 1 4OI1.6 9.235? 9.356 a.So 1-3IfIa 1066 316 6.091 5.066 4.632 6.567 6.096 8.137 8.556 9-576 7.903

1101 OPSI 311) 281 310 300 310 300 310 310 300 310 Safi 320 365........................................................................................................................................

I K.ANi I lol. 1019.3 2016.7 1025.0 1015.6 1015.1 20a16 .0 1,017.2 1028.6 1018.7 1018.5 1017.8 1021.007 1 So 1 11.066 9.616 9.656 8.616 6.219 5.917 41410 6.733 6.236 6.386 6.626 9.603 0.129

ITOf OSI 310 261 31LO 300 s31) 300 311: 310 3c0 310 300 310 36 51

13 I so 1 11.126 9.569 9.909 8.766 6.296 5.892 4.750 60.609 6.360 8.567 0.6560 9.605 0.230110T OrSI 310 202 31L. 300 310 300 310 310 300 310 300 310 3652

.......................T;, ................................................................................................................." 1EN 1016.1 2019.0 1016.3 1016.5 1015.1 1016.8 1015.7 1G17.0 1018.0 1016.2 10317.8 1017.2 1016.6

13 1 sip I 10.891 9.676 9.813 8.506 6.130 5-707 6.613 4.376 6.098 8.61746 .605 9.669 8.0621101 06451 SicG 262 Stu 30C 31D 300 310 310 300 310 300 310 3652

I MEDA 1016.0 1018.5 101S.6 1013.9 1016.6 10164.1 2015.0 1016.3 1017.2 1017.7 1017.5 1017.1 101;:;16 9 5r 10.56b 9.197 9.373 ?.989 5-993 5.662 61.57 It. 301 S.09 6.166 6.531 9.305 7.827

910; ORsI 309 262 31U 3130 S10 300 320 310 300 310 S00 320 365 2

19 EAN6 1016.0 1019.2 1016.3 1016.2 1026.6 1016.1 1016.8 1016.3 1017.6 1018.4 1018.1 l027.& 1016.5

19 Io 10.4129 0.987 9.037 7.637 5.826 5.258 4.330 t.247 5.627 7.983 0.570 9.311 7.71

I101 0'1SI 310 262 314. I00 310 299 310 310 300 310 300 309 3650

22 I so I 10.606 8.98S 9.035 7.735 5.85o 5.292 6.192 6.285 5.053 7.691 8.671 9.%68 ?.715IS1101 CR59 320 261 31L, 300 310 299 310 310 300 313 300 310 3650

...........................................................................................................................................I PEAR 1 1016.6 1029.3 1026.6 2026.5 1016.9 2016.6 2015.5 1026.6 1017.9 1018.6 1018.1 2017.6 1016.7

ALL I SD 1 10.730 9.241 9.6161 6.216 6.046 S.620 %.55I146.663 6.045 S.110 6.602 *.%?a 7.966,idURS1lO1 ORSI ?679 2252 "tell 2600 268D 2398 2680 26800 7600 2680 2600 2679 29208...........................................................................................................................................

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or SURAC IE*11R03..(U)A1 RREAOIIL TTPUTAL ...N 43 06 W 078 57 ELEV:590 FT KLAG PARTS A -F HOURS...

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