When I used to volunteer for the Naperville EMA, those of us who worked command would get a lesson in how to do all sorts of really important but vaguely scary things, one of which was sounding the sirens in event of a tornado. There's a second button, next to the "constant siren wail" button, that was just labeled "warble". I asked when, if ever, the warble tone was used. I was given a simple answer: "That's only used in event of an air strike. God help us all if we ever have to hit that button." Then he paused and added, "Try not to hit that one by mistake."
Looks like someone in Connecticut pushed the wrong button.
Thanks to yukino for that little gem.
