Folks in the Midwest and western Great Lakes will want to take extra caution when going about their day on Tuesday.
Sultry air will prime the atmosphere for severe storm development, especially in the afternoon and evening as heating peaks.
The strongest storms will likely fire along an area extending from southern Iowa and northern Missouri to eastern Wisconsin in the afternoon and travel south and east through the night.
Areas as far west as northern Kansas will have severe weather as well.
"Storms that develop during the afternoon through the mid-evening from northern Illinois to northern Kansas will become severe but will be more isolated in nature," said AccuWeather Lead Storm Meteorologist Phil Warren.
A few cities that could be in the path of Tuesday's storms include Madison, Wisconsin; Milwaukee, Wisconsin; Davenport, Iowa; Kansas City, Missouri; Chicago, Illinois; Springfield, Illinois; Grand Rapids, Michigan; and South Bend, Indiana.
"Straight-line wind gusts, large hail, and localized flash flooding with be the main threats with this severe activity," added Warren.
Those gusty winds could topple trees and bring down power lines, forcing many in the dark.
Flash flooding could turn streets into rushing rivers, forcing travel delays on motorists. Folks are urged to find an alternative route if they encounter a flooded roadway.
"The Tuesday evening commute is most at risk in Chicago and Milwaukee," said AccuWeather Senior Meteorologist Kristina Pydynowski.
Those taking to the air could be the most affected. "As the storms roll through, there is the risk of a ground stop and substantial flight delays," continued Pydnowski.
Any afternoon or evening activities planned outside may need to be delayed or rescheduled for another time. Storms could disappoint those who plan on seeing the White Sox take on the Royals at U.S. Cellular Field.
Remember, if you can hear thunder you are within striking distance of lightning. If you are caught out in a storm, seek shelter away from trees and open areas.
A recent uptick in heat and humidity, along with an approaching cool front, will help produce these storms.
Temperatures last week were locked into the 70s across much of the region including Chicago. Tuesday's high will likely jump into the lower 90s in Chicagoland.
The heat and humidity won't stick around for too long though. In addition to bringing storms on Tuesday, the front will also usher in refreshing air for Wednesday.
The steamy air, along with the severe weather threat, will shift to the Northeast through the Ohio Valley on Wednesday.