Metro Tornado Warning Siren System Better. Bigger. Broader.
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Transcript of Metro Tornado Warning Siren System Better. Bigger. Broader.
Metro Nashvilles Outdoor Weather Warning Siren System Upgrade
Metro Tornado Warning Siren System
Better. Bigger. Broader.
Warning Siren History1998 Nashville takes a direct hit, leaving one person dead and millions of dollars worth of damage
2002 - Metro receives HUD Grant funding to construct a 70 site Outdoor Weather Warning System
2003 System operational
2007/8 3 siren sites added in Forrest Hills and Oak Hill bringing the total number to 73
System Upgrade Timeline2012 - Mayor Dean submits a FY2013 Capital Improvements request for $2 million
Council approves the request June 2012
System Upgrade TimelineRFP released July 2012 for upgrade and enhancement of 73 existing and installation of 20 new sirens
Contract is awarded to Federal Signal November 2012
Project HighlightsAll equipment will be replaced with new
20 additional sirens will expand coverage area
Mechanical siren instead of electronic loudspeaker
Lower frequency sound will be easier to hear and will travel farther
New Site SelectionIn 2002, Metro received grant funds from the US Department of Housing and Urban Development to build an Outdoor Weather Warning Siren System that specified individual siren locations based on the 2000 census data, and outdoor population expectations.
The 2013 upgrade of the system combines the same methodology and the latest 2010 census data to recommend the new locations, as the system is expanded to cover additional areas of the county.
New Sirens, New Sound
Old SirenFederal Eclipse 8 Siren
During the TransitionFebruary 27th Council Briefing
Last week of February Siren installation begins with new sites
March 7th New sirens on-line for activation
April 30th Estimated Project Completion
From March 7th through Project Completion BOTH Systems will be active and either sound may be heard until the last siren is replaced.System TestingWhen weather permits, the system is tested for one minute at noon on the first Saturday of the month
The system tests itself twice each day and reports any problems to OEM staff
Individual sirens can be tested to verify repairsActivation and OperationOEM Operations manages and activates the system
Sirens are controlled via Metros 800MHz Radio System
There are two activation points, one at each OEM dispatch center
The sirens are only activated for an official Tornado Warning for Davidson County
A tornado warning for any part of the county will result in all sirens being activated
Sirens will sound for 3 minutes out of every 10 during an active warning, i.e. there would be 3 activations during a 30 minute warning period
Activation and Operation
NOAA Weather RadioA Tornado Siren is only intended to alert the OUTDOOR population to take shelter and get more information
Everyone is encouraged to have a battery powered NOAA Weather Radio available in their home for the latest information
We Need Your Help To Get The Word Out!!Other Resources Available:
Information kits provided to all Council Members
All information will be posted online at www.oem.nashville.gov
OEM Staff is available for community meetings
Metro 3 video will be available this week on the OEM web page and YouTube
NOAA.govThank You!