[Nailbiter]

First Tuesday of the month- they are always tested in Illinois

[Steven W.]

Thx! :)

[ichabod1]

I was just thinking about that the other day. Sitting in classrooms in Illinois and hearing that damned air raid siren go off every first Tuesday. It was creepy then, still creepy.

However, they are mostly for tornadoes which are a continuing danger for folks in those parts.