CHICAGO—A tornado that swept through Chicago’s western suburbs, damaging more than 100 homes and injuring several people, was packing 140 mph winds when it hit the heavily populated area, the National Weather Service said.
A weather service team that surveyed the aftermath of Sunday night’s storm found that, based on Monday’s preliminary findings, the tornado was an EF3 on the Enhanced Fujita scale when it cut a path through parts of Naperville, Woodridge, Darien and Burr Ridge, and that it launched debris to a height of nearly 20,000 feet.
