Ground stop issued at O'Hare, Midway due to fog and thunderstorms

Ground stops were issued at O'Hare and Midway airports Friday morning due to thunderstorms and fog.

What we know:

Thunderstorms prompted the Federal Aviation Administration to halt landings and departures at O'Hare Airport around 8 a.m.

The ground stop was in effect for O'Hare until 12:45 p.m. Delays averaged 167 minutes at the airport on Chicago's Northwest Side, according to the FAA.

A ground stop was issued around 9:12 a.m. for Midway Airport due to fog. It expired at 10:30 a.m.

In the past 24 hours, 76 flights have been canceled at O'Hare Airport and 20 flights have been canceled at Midway Airport.

For more flight information and updates, visit the National Airspace System Status website.

The Source: The information in this report came from the Federal Aviation Administration.

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