This is the first Monday of the month test of Electra Texas storm warning sirens. The town has 2 2001s, 2 federal eclipse and 1 thunderbolt 1003. I live between the tbolt and a 2001, but if you listen closely you can hear the eclipse which is west of me about a mile away when the tbolt shuts down. The tbolt is also our fire siren. Also note the activation tones and radio traffic.
https://youtu.be/9WKFNM-Suz4