Federal Signal Thunderbolt 1000AT - Full Alert & Ambiance | Henryetta, Oklahoma | 7/22/26

At 13:59:44 on Wednesday, July 22nd, 2026 the City of Henryetta began conducting tests of their Outdoor Warning Sirens which consisted of a 3 minute Alert followed by a 55 second Alert. ***INFORMATION*** ———————————— VIDEO Date Recorded: 7/22/26 Main Shot: Nikon Coolpix P950 Second Shot: N/A Audio: Zoom H1n Distance from Siren: About 265ft Weather Conditions: Sunny SIREN Model: Federal Signal Thunderbolt 1000AT Ports: 5/6 Chopper Level: 4 RPM: 2.4 Blower Type: A2 4M Serial Number: A012670M84 Replaced: N/A LOCATION Nearest Address: 143 S 13th St, Henryetta, OK 74437 Direct Coordinates: 35.4393207, -95.9973590 SYSTEM System: City of Henryetta Operator: City of Henryetta Tests: Randomly during storm season @ 2:00PM Cancels For: Overcast Test Cycle: N/A Time of Activation Today: 13:59:44 AUDIBLE SIRENS Henryetta: FS Thunderbolt 1000AT - 265ft Whelen WPS-4004 - 0.61 Miles FS 2001-130 DC - 0.74 Miles FS 2001-130 DC - 1.16 Miles FS 2T22A - 1.28 Miles (Faint) FS Thunderbolt 1000AT - 1.96 Miles Dewar: (Faint) Whelen WPS-4004 - 3.44 Miles NOTE Was made aware this town would be testing their sirens today, so I knew I had to go. I’ve wanted to record this system for a while but they don’t follow a proper test schedule. This is one of the louder Thunderbolts I’ve heard, and I love the lowerish level 4 pitch. It failed the second test though, but that allowed me to catch the ambiance much better. Although you can hear the other sirens pretty well even while the Thunderbolt is running. Both of the 4004s are 450hz which is interesting. I’m trying out a new intro styles and I like this one, but it’s very choppy because of how Google Earth renders it when screen recording for whatever reason. Let me know what y’all think. I might experiment a bit in the next few videos. At 5:03 I showed the wrong image🤦‍♂️ It was supposed to show only the western 2001 and the 4004 in Dewar activated. Clearly I can’t edit with a more professional editor lol, I’m learning. Also I forgot to put what the dot colors mean in the corner of the screen during the ambiance, so I’ll put them here: Green - Activated Red - Failed White - Unknown if activated/failed Green Coverage Circle - Audible; approximate 70dB range OTHER Check out my other siren videos: Recordings:    • All of My Siren Recordings   Ambiances:    • All of My Siren Ambiances   I post siren pictures on Instagram:   / andrewwt5020   If you would like to use my videos, you do not have to ask, just give credit. I will NOT be held responsible for any misuse of the audio on your part.