Federal Signal Thunderbolt 1003 Special Test | Undulating Hi-Lo | Bement, IL | 9/6/22

Siren starts at 0:30.

Big thanks to ‪@centralillinoissirens.‬ and Tony Price for this opportunity!
This particular 'Bolt had been gnawing away at the back of my mind since 2020. I thought it had recently died and I'd never get to hear it. Lo and behold, the siren was never actually inactive and just had to be manually activated via the AF timer.
I have no idea when the solenoids were last used. I suspect that this was the first time they were activated in several years since a puff of dust came flying out.
EDIT: Apparently this is the 50th individual Thunderbolt I've filmed, so that's also cool.

Bement also has a Vortex and a 4/5 port 1000T that can be heard before and after the 1003 sounds. They're tested on the first Tuesday of the month at 10:00 A.M.

My video of the 4/5 'Bolt from June 2020:    • 4/5 Port Federal Signal Thunderbolt 1...  

Direct coordinates to this siren: 39.91918, -88.57563

#tornadosiren