Both of Chicago's airports have canceled flights as powerful storms are anticipated to hit parts of the Midwest.
The Chicago Department of Aviation said Wednesday that 325 flights had been canceled at O'Hare International Airports. Schedules there were running about 30-90 late. At Midway International Airport, over 70 flights were canceled. Flights were up to 60 minutes behind.
National Weather Service meteorologist Amy Seeley says high winds are expected to be the biggest threat. There could be wind gusts over 70 mph.
Forecasters predict the most severe conditions during the late afternoon and evening hours. Far eastern Iowa and northern Illinois could see "significant" tornadoes of an EF2 rating or higher. Wind gusts could be 70 mph or greater. The worst weather is expected in Chicago after 4 p.m.