In the confusion about the tornado warnings in parts of the Birmingham metro area Monday night, I learned that their sirens sound only in the area threatened by the tornado. That is now true in Wichita, Ft. Worth and many other cities. Selective siren activation will only grow in the coming years as opposed to the old countywide siren activations.
As we roll into tornado season 2021, make sure you know how your sirens are activated. If they do not go off in an area not threatened, that is a good thing — fewer false alarms.