The Federal Aviation Administration (FAA) imposed a ground stop on August 11, 2026, for flights destined for Chicago O’Hare International Airport and Chicago Midway Airport. The order halted arrivals to O’Hare until 11:15 a.m. Central Time and to Midway until at least 11:30 a.m. CT as severe thunderstorms entered the Chicago area.
Severe Weather Impact on Chicago’s Airspace
The storms, producing destructive wind gusts reaching 100 mph, brief tornadoes, and heavy rainfall, swept across Illinois and Indiana. These conditions caused downed trees and power lines and prompted flood warnings across Chicago and the surrounding region. Severe weather alerts remained active for most of Illinois due to
the adverse conditions.
Operational Disruptions and Flight Delays
The Chicago Department of Aviation confirmed the control tower at Midway Airport was briefly evacuated amid the storms, potentially disrupting airport operations. Following the ground stop, O’Hare maintained a ground delay program until 10 p.m. CT to safely sequence arriving flights. The FAA implemented these measures to manage air traffic and ensure safety as the storms impacted the region.
The FAA indicated the possibility of extending the ground stop depending on the storms’ progression, which affected flights originating from certain U.S. airports en route to Chicago. NBC 5 meteorologist Kevin Jeanes provided weather forecasts that detailed the
storm’s severity.
