When bad weather approaches, a firefighter unlocks the cage and presses a single button to activate the rotating siren. Kupper says that on the night of the tornado they tried to do exactly that ...

Inside the siren was a 1952 180-hp V8 Chrysler HEMI ... The inline HEMI engine had a two-stage air compressor with a rotating chopper that pushed the air through horns. When the chopper sliced ...

But it still sits on a rotating platform that used to turn full circle to blast its warning to all corners. When the city bought the 21 new air-raid sirens that year, reports said, then-Mayor ...

The county’s new sirens will sound when the National Weather Service puts out an alert. A rotating siren located at the entrance to Laderman Park in Belleville, Illinois. Derik Holtmann ...