Dangerous storms threaten large swath of US from Midwest to South

A Tornado Warning has been issued for areas in Eastern Iowa.

National Weather Service meteorologists have issued a tornado warning for areas around Winfield, Iowa.

The National Weather Service has issued a Tornado Warning for areas along the Mississippi River in Eastern Iowa.

A Tornado Warning has been issued in Northern Illinois for a severe storm capable of producing a tornado.

A tornado-warned storm is making its way through southern Michigan.

A Tornado Warning has been issued in southern Alabama because of a severe storm with the capability of producing a tornado.

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Most of the rain is now over for Chicago and there a no longer warnings in effect in the region.

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Tornado sirens were activated in Northern Illinois as a severe storms moved through the area.

The clouds associated with a tornado-warned storm moving through the Chicago suburbs were captured on camera.

A Tornado Warning continues until 4:30 p.m. for parts of Cook County. The storm was located over Elk Grove Village and was moving northeast at 40 mph. People in the warned area should seek shelter immediately.

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The National Weather Service says at least one funnel cloud was reported to have been spotted west of the city. So far, there have been no reports of any touchdowns.

Video shared with FOX Weather on Wednesday showed tornado sirens were sounded in Elgin, Illinois as severe storms moved through the region.

The Federal Aviation Administration reported that ground stop has been issued at Chicago Midway airport until 4:30 p.m. Central because of severe weather in the area.

Tornado Warnings were issued in several areas around the city of Chicago on Wednesday afternoon. More than a million people were under warnings for a time.

Flight movements were temporarily halted at Chicago O'Hare because of severe weather in the area.