A line of severe thunderstorms triggered a tornado warning in Chicago's southwest suburbs. There is a ground stop at O'Hare and Midway airports due to the weather.

Less than a week after a tornado outbreak devastated the Midwest, numerous Illinois communities were placed under another tornado watch. The watch was issued Wednesday afternoon and runs through 9 p.m.

If you live in a high-rise apartment building, you should use the stairs to get to the bottom floor, and seek shelter in the staircase, hallways, or even parking garage! If you can’t get to the bottom floor, get away from windows, seek shelter in a closet, and cover yourself with a blanket or mattress.

A band of severe weather brought tornado warnings to the Chicago area and parts of northern Illinois. The threat of high winds remains, and tornadoes could occur near and south of I-80. Thursday morning's commute will be chilly,