Chicago weather radar: Tornado watch in effect for parts of Illinois, Wisconsin for the next round of potentially severe storms

CHICAGO (WLS) — A series of storms with a history of producing large hail and strong winds hit the Chicago area, triggering a severe weather warning.

A Tornado Watch for Cook, Kankakee, DuPage, Lake, Will, De Kalb, Grundy, and Kendall counties in Illinois and Walworth, Racine and Waukesha counties in Wisconsin have expired.

Severe Thunderstorm Warning has also expired for Cook, DuPage, Kankakee, Boone, McHenry, Winnebago, De Kalb, Livingston, LaSalle, and Will territories.

ABC7 Meteorologist Larry Mowry said the sunlight that followed the previous storm loop would make the atmosphere warm as a cold front moves in from the west.

The Hurricane Prediction Center has raised most of Chicago to “slight” risk for severe weather, or level 2 of 5. Northwest Indiana is under “marginal” risk, level 1 of 2.

SPC also said the immediate Chicago area was under a 2% risk of a tornado developing within 25 miles, with large swaths of the northwest, west and southwest suburbs under a 5% risk.

Mowry said he expects separate supercell storms to form west of us before developing into a series of storms. Those supercells posed the greatest tornado risk, but as they developed a more linear structure, the main threat shifted to high winds.

The storm moved through the area quickly, with heavy rain, wind, and hail being the main causes.

Dark clouds covered most of the area Thursday night. Video from Waterman in DeKalb County shows strong winds, fighting a gust of wind.

Strong winds and rain also knocked down several electricity poles there.

In Elgin, cell phone video captures a large hail falling. It looked like a white golf ball falling from the sky, and into people's yards.

Drivers faced heavy rain as the storm cell passed through LaSalle and Grundy counties, making it difficult to see the road. Sporadic lightning flashes are widespread when the storm hits the area.

ABC7 has not seen any reports of significant hurricane damage but will continue to monitor weather conditions throughout the night.

The forecast for Friday is expected to be better, with highs in the mid-60s with an erratic chance of rain. Cold temperatures are ready to welcome the weekend.

The latest AccuWeather forecast

Stay tuned with ABC7 Eyewitness News and ABC7Chicago.com for the latest updates.

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