After several reports of tornadoes around the Chicago area Wednesday night, strong-to-severe storms are expected across a widespread area stretching from the Plains, Mississippi Valley and into the Northeast. 

Chicago-area tornado reports

Tornado reports over the past 18 hours around Chicago (Credit: Fox News)

LANDSLIDE RAVAGES HOMES IN SOUTHERN CALIFORNIA COMMUNITY, EVACUATIONS CONTINUE

Severe storm threats

Severe storm threats across the U.S. (Credit: Fox News)

Heavy rain and flash flooding there will once again be a big risk for some of the areas that have dealt with historic rainfall. 

Northeast rain forecast

Rain forecast through Monday in the Northeast (Credit: Fox News)

Meanwhile, a significant and prolonged heat wave will expand over the Southern Tier of the country. 

Southwest high temperatures

High temperatures in the Southwest on Saturday (Credit: Fox News)

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West potential record high temperatures

Potential record highs on Saturday in the West (Credit: Fox News)

Record-setting temperatures are expected for cities like Phoenix and Las Vegas heading into the weekend.