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Fog grounds some flights, slows rush hour

Published: Monday, Dec. 3, 2012 9:44 a.m. CDT

(MCT) — Dozens of flights were canceled and rush hour traffic was slowed this morning as dense fog settled on the Chicago area.

As of 9 a.m., more than 50 flights had been canceled in Chicago, 49 at O'Hare International Airport and 3 at Midway Airport, according to FlightStats, which gathers data from airports and the Federal Aviation Administration. More than 300 flights were delayed, 232 at O'Hare and 88 at Midway.

On the roads, traffic moved slowly during the morning rush but no major accidents were reported, according to the Illinois State Police. Commuters were urged to leave extra space between vehicles.

The National Weather Service had issued a dense fog advisory until 8 a.m.

By 7 a.m., the fog had already lifted significantly in southern parts of the city and it will continue to lift northward throughout the morning, said Mike Bardou, a meteorologist with the National Weather Service in Romeoville.

“Over the next couple of hours, we should see visibility slowly come up,” Bardou said.

Unseasonably warm termperatures are contributing to the lingering fog: the weather service has predicted a high of 67 degrees for today, well above the normal high for Dec. 3 of 39 degrees.

Chicago's record high temperature for Dec. 3 is 71 degrees, which the city recorded in 1970.

Thunderstorms and showers are possible this afternoon and evening.

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