The severe weather poses significant risks to residents across the Chicago area, including Cook County, Northwest Indiana, and surrounding regions. Strong winds could cause further damage to trees and power lines, exacerbating existing outages. Tornadoes, if they occur, could lead to life-threatening conditions and structural damage. Large hail may also damage vehicles and property. The storms have already disrupted air travel, with over 600 flight cancellations reported at O'Hare Airport and delays at Midway Airport. Public events, including concerts and festivals, have been postponed or rescheduled due to safety concerns.