ASC T-128 | Siren Test | Full Alert | Flower Mound, TX

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At 1:00 PM, The City of Flower Mound Texas conducted a test of their outdoor warning sirens on Wednesday, March 2nd, 2021. The test consisted of a full Alert.
This siren is located at the Flower Mound Police Station. The sirens are Tested on the first Wednesday of the month at 1:00 PM Weather Permitting. The test usually runs for about 3 minutes.
I'm sorta confused as to why I heard what sounded like a few 435 hz whelens in the distance. Pretty much all of the Whelens in Lewisville are either 465 or 560 except for the one next to the lake (which I can barely hear from my house.) from this location, it sounded like the Huffines vortex was doing 435, and maybe a few others.

[@alarmandsirenguy]

Once again Awesome Video!!

[@borkluchtalarm]

1RPM

[@iangilldjsuperdude]

I heard some Whelen sirens in the far background after the T128 winded down.

[@brodiessirenproductions]

Those happen to be Lewisville’s Whelen’s.

[@brodiessirenproductions]

Wow! You finally got your editor to work! Awesome video!

[@BDYT1422]

One heck of a slow rotation

[@brodiessirenproductions]

Yeah this thing is like 0.7 RPM or something like that

[@steamship999]

I heard a 2t22

[@windycitysirens]

When thinf

[@brodiessirenproductions]

when thinf

[@ntxsirenvators8983]

When thing

[@adamssirenadventures6574]

Nice video i should do Flower Mound sometime.

[@brodiessirenproductions]

Also, there’s 530s in Lewisville??

[@OWS_Crazy1]

560

[@brodiessirenproductions]

@@OWS_Crazy1 Oh I must’ve read it wrong. Sorry

[@OWS_Crazy1]

No that was my mistake