Here are the main threats with the severe weather.
While these storms will be moving faster than those of the last seven days, torrential rain is expected in the strongest storms.
Residents should be prepared for damaging winds, flash flooding, and frequent lightning.
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Numerous showers and thunderstorms are expected to roll through those areas starting late Monday afternoon through midnight, NWS said.
Flash floods can cause fast-moving water to rush down streets. New rainfall amounts between 1 and 2 inches possible.
The weather service office in North Webster, Ind., said the thunderstorm had wind gusts up to 60 miles per hour and quarter-sized hail, big enough to damage vehicles.
The National Weather Services cautions people in the line of this storm to move to an interior room on the lowest floor of a building.
Clouds may hold on a lot longer near New London County, reducing the likelihood of strong storms.
Large hail, about 1 inch in diameter or bigger, is also possible. If possible, swim in a direction following the shoreline until the rip current releases you, or face the shore and call or wave for help. Rain may linger into the evening and then Tuesday is expected to be less humid.