Don't be alarmed if you hear tornado sirens sounding around Des Moines on Saturday, it's only a test. Here's what to know about how tornado sirens work in the metro. Communities in Dallas and Polk ...

A series of severe storms triggered tornado warnings and tornado watches in much of central and northern Illinois on March 19, moving out of the area by late evening. The storms caused a ...

JANESVILLE — Rock County will participate this week in the statewide tornado ... warning sirens will sound at 1:45 p.m. and again at 6:45 p.m. on Thursday, April 10. The siren test is part ...

Tornado alert terminology explained by the National Weather Service. An audio sample of this siren is available on the Illinois Emergency Management Agency website, along with a sample of the ...