The Federal Aviation Administration (FAA) imposed a ground stop for flights destined for Chicago O’Hare International Airport until 11:15 a.m. Central Time on Tuesday, August 11, 2026. A simultaneous ground stop was also in effect at Chicago Midway International Airport until at least 11:30 a.m., both actions taken in response to severe storms impacting the area.
Storm Conditions and Airport Operations
These storms involved a powerful line moving across Illinois and Indiana, generating destructive wind gusts of up to 100 miles per hour, brief tornadoes, and heavy rainfall. The Chicago Department of Aviation reported that the control tower at Midway Airport was briefly evacuated during
the hazardous weather. Additional impacts included downed trees and power lines, along with flood warnings issued across the Chicago region.
Flight Delays and Air Traffic Management
Following the lift of the ground stop at O’Hare, the FAA implemented a ground delay program that will remain active until 10 p.m. Central Time on the same day to manage inbound traffic amidst ongoing weather concerns. The FAA stated the possibility of extending the ground stops if the weather conditions persisted. Flights scheduled to land at both airports during the ground stop period were held on the ground, causing widespread delays and disruptions to the day’s flight schedules.
