The Chicago area is under level 2 out of 5 risk ... counties until 1 a.m. Monday. A Tornado Warning was previously in effect for Cook, Kane and DeKalb counties in Illinois, but it has expired.

Warning Sirens Sound Across Chicago as Tornadoes Approach The National Weather Service said a tornado touched down near Chicago’s O’Hare International Airport on Wednesday, disrupting hundreds ...

The red flag warning will expire on Monday ... The system bringing the cold air also brings a risk for severe weather. As of Monday afternoon, Chicago is at a risk level of 2 out of 5.

Severe wind and possible tornadoes have damaged buildings in the Chicago area as a cold front ... As the weather warning is moving east, more than 11 million people across Ohio and Kentucky ...