Matt Preston of Minnesota sent me two videos of the Thunderbolt 1003 on top of HO Sonnesyn Elementary School in New Hope Minnesota back around 2007. I don't think he will mind me posting these on youtube. I have had them for download on my site since then.
He shot the video during an evening test (6:55 pm) so the video is a somewhat dark but the audio really captures the sound of the Thunderbolt siren. This is the first half of the test with an alert cycle.
Негізгі бет Sonnesyn Elementary School Federal Thunderbolt 1003 Video 1 Alert
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