A line of severe thunderstorms raced through the Chicago area Wednesday afternoon, downing trees and power lines, and causing power outages. There are ground stops in effect at O'Hare and Midway airports.

Chicago is facing another round of severe storms on Tuesday, with threats including damaging winds, hail and heavy downpours.

A series of severe thunderstorms swept across the Chicago area Wednesday afternoon, causing thousands of power outages and damage throughout the region. There were multiple reports of wind damage, with gusts in excess of 60 miles per hour reported in DuPage and Cook counties.