Siren

A drizzly day.
On my way back from the dentist, I happened to notice the tornado siren against the grey sky.
It's on the side of a school and I've never really paid any attention before but I guess there's one beside every school...
we can't hear them from where we live so we have a weather radio, but if you're in town on the right day of the week you'll hear them test the sirens...I hope I never hear one 'for real'.