4:43

Federal Signal Thunderbolt 1000T | Full Attack & Alert | Paducah, KY

4:24

tornado siren madness - london trip part 1.

1:58

6M Thunderbolt 1000T | Alert | Wichita, KS

4:53

Testing More Sirens

3:13

Forest Hills VFD EOWS 612 test, all tones

5:13

Downtown Federal Signal Thunderbolt 1000 - Wichita, KS 11/28/11

12:46

HO Scale Thunderbolt 1003 Modification & Assembly Process

4:02

Whelen Vortex R4, Full Attack/Wail: Martinsville, IN (Morgan Co. Tornado Siren Test, HD)