17 ° LAT. S

69 ° LONG. W

300 FAMILIES AFFECTED

BY DRIZZLE

160 FAMILIES

AFFECTED BY RAIN

CLOSED BORDER

CROSSING

SCFA

1.5mm

UCN : O.5 mm

TS DUST

GUSTS

45 KT 60KT

SCAT 1.6MM

6 mm

Canto del agua 6.5mm

JUNTA DEL CARMEN

4.5mm

EMBALSE SANTA JUANA

3.8MM

3mm

JUNTA DEL CARMEN 4.5mm

PASO

SAN

FRANCISCO N. Anto: 0.5mm

N. Vall: 2,1mm

LEFT ENTRANCE

RIGHT EXIT

• JET STREAM (ISOTACHS)

• UPPER DIVERGENCE

• ADV. CYCLONIC VORTICITY

• GEOP. DROPS OF 80MGP/DAY

X

JET MAX

ISENTROPIC ASCENT

ISENTROPIC DESCENT

L

PRESSURE

WIND

ISENTROPIC ASCENT (POSITIVE P ADVECTION)

ISENTROPIC DESCENT (NEGATIVE P ADVECTION)

ISENTROPIC ANALYSIS.

(1) 500HPA WIND >50 KT (2) WEAKENING OF DIURNAL

CYCLE AT CALAMA

ANTOFAGASTA (COAST) CALAMA ( FOOTHILLS)

SE W SE W W W

DU

ST

ST

OR

M

DU

ST

ST

OR

M

COAST

ANDES

MOUNTAINS

• POTENTIAL

TEMPERATURE [K]

• SATURATION ( RH)

[%]

• WIND [kt]

• TOPOGRAPHY

CROSS SECTION IN ANTOFAGASTA

ANDES

MOUNTAINS

COST

• WIND (kt)

• CONV.

• SATURATION ( HR)

• ( % )

• POTENTIAL

TEMPERATURE ( K)

• TOPOGRAPY

CROSS SECTION IN ATACAMA REGION

SCFA

SCAT

SCCF

PASO SAN

FRANCISCO.

SCFA SCCF

SCAT PASO SAN

FRANCISCO

• Based on the application of the tools learned in the Sudamerican Desk:

• GFS model variables were sufficient to detect and forecast the event.

• Contribute to the creation of an early warning system (ONEMI*).

*ONEMI: National emergency office.