Madison, Wisconsin – Severe storms capable of producing tornadoes could disrupt travel and knock out power across southern and eastern Wisconsin through 10 p.m. Tuesday, with I-94 and I-90 facing sudden visibility drops and debris hazards during peak evening travel.
According to the National Weather Service Storm Prediction Center, Tornado Watch 109 includes 32 counties stretching from La Crosse and Monroe counties in the west to Milwaukee, Racine, and Kenosha along Lake Michigan. Conditions favor isolated tornadoes, wind gusts up to 60 mph, and hail that could damage vehicles and roofs.
Madison, Milwaukee, and surrounding suburbs including Waukesha and Kenosha are in the highest-impact zone through the evening hours. Drivers along I-43 and I-41 may encounter rapidly changing conditions, while rural areas in Grant, Green, and Lafayette counties could see stronger rotating storms develop first.
Residents should secure outdoor items immediately, charge devices, and avoid unnecessary travel once storms begin. Local emergency managers warn scattered power outages are possible, especially in densely populated corridors.
The threat continues through late evening, with additional warnings likely as storm cells intensify across southern Wisconsin.
