National Weather Service United States Department of Commerce

Tropical System in the Gulf; Dangerous Heat and Air Quality Concerns; Severe Thunderstorms for Midwest to mid-Atlantic

Tropical system in the Gulf expected to gradually strengthen the next couple of days off the Florida Panhandle and Alabama coasts. Instances of flash flooding will be possible through Thursday along the eastern and central Gulf Coast. Severe thunderstorms will develop and move along a cold front crossing the Upper Midwest, and through the Ohio Valley/Mid-Atlantic on Tuesday. Read More >

Severe thunderstorms are forecast to develop late this afternoon in central Wisconsin and track southeast across southern Wisconsin. All severe hazards will be possible, along with some higher end severe potential.
All hazards will be possible with the storms that do develop tonight. Damaging winds over 70 mph, large hail over golf ball sized and tornadoes (some strong, EF-2+ level) will all be possible late this afternoon into this evening.
Thunderstorms are forecast to develop this afternoon and evening and track southeastward across southern Wisconsin. All hazards are possible with these storms.
High swimming risk expected Monday afternoon into early Tuesday morning at Sheboygan and Ozaukee Co beaches, where a Beach Hazards Statement is now in effect. Use caution if heading lakeside!