Tuesday, February 19, 2013
6:16 AM | 
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Federal Signal Thunderbolt Siren Test Alert and Attack Video Clips. Duration : 2.57 Mins.
This is a test run of a FS Thunderbolt, not exactly sure what type it is but it sounds different than any other one I have come across so far. Its being tested on the first Wed's of the month on Alert and then Attack. Hope you guys enjoy!!!! :) This is part of a network of 248 sirens in the Jefferson County EMA's advanced outdoor warning siren system in Central Alabama. Tested on the first Wed's of the month. Sounds in Alert and then Attack. Alert is used for Tornado's. Jefferson County has one of the most advanced outdoor warning systems in the US, and are the first to move to a polygon type warning system which they are now implementing, in the event of a tornado warning, sirens under the new system will only activate within the projected Polygon by the NWS to reduce false alarms for people unaffected.
This is a test run of a FS Thunderbolt, not exactly sure what type it is but it sounds different than any other one I have come across so far. Its being tested on the first Wed's of the month on Alert and then Attack. Hope you guys enjoy!!!! :) This is part of a network of 248 sirens in the Jefferson County EMA's advanced outdoor warning siren system in Central Alabama. Tested on the first Wed's of the month. Sounds in Alert and then Attack. Alert is used for Tornado's. Jefferson County has one of the most advanced outdoor warning systems in the US, and are the first to move to a polygon type warning system which they are now implementing, in the event of a tornado warning, sirens under the new system will only activate within the projected Polygon by the NWS to reduce false alarms for people unaffected.
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