O’Hare Shutdown: Thunderstorms Trigger Massive Ground Stop
Thunderstorms Ground Flights at Chicago’s O’Hare Airport: What You Need to Know
What Happened?
On Thursday afternoon, August 13, 2026, thunderstorms rolled through the Chicago area. Because of the bad weather, the Federal Aviation Administration (FAA)—the people in charge of airplane safety—ordered a "ground stop" at O’Hare International Airport.
What is a "Ground Stop"?
Think of it like a red light for airplanes. No planes are allowed to take off or land until the weather clears up and it’s safe again.
The Timeline
Here is how the afternoon unfolded:
- 1:53 PM: The FAA officially issued the ground stop for O’Hare.
- Initial Plan: The stop was scheduled to last until 3:15 PM.
- 2:45 PM Update: The FAA warned there is a medium probability (a decent chance) the stop will be extended because the storms aren’t moving out fast enough.
- Good News for Midway: As of 2:45 PM, Midway Airport was not impacted and flights were operating normally there.
Why Did They Stop the Flights?
The National Weather Service (NWS) in Chicago sent out a warning on social media. They explained that more showers and thunderstorms were moving in.
Weather Hazards to Watch:
- Strong Winds: Can push planes around during takeoff and landing.
- Torrential Rainfall: Makes it very hard for pilots to see the runway.
- Flash Flooding: Heavy rain in a short time can flood roads and runways.
The NWS told everyone to "Stay weather aware for the remainder of the day."