Madison, Wis. – Southern Wisconsin is bracing for a hot and stormy Sunday evening, with heat index values climbing close to 100°F ahead of strong thunderstorms expected between 5 and 9 p.m. The combination of extreme heat and potential storms makes for a dangerous mix that residents should prepare for.
What to Expect This Sunday
According to the National Weather Service in Milwaukee, a southwest breeze and high humidity will push the heat index into the upper 90s by mid-afternoon in cities like Janesville, Dodgeville, and Madison. By 3 p.m., Madison could feel as hot as 97°F.
The situation will only get more intense as a cold front moves in late Sunday, setting off thunderstorms with the strongest storms expected between 5 p.m. and 9 p.m. north and west of Madison. These storms will bring strong straight-line winds, which could cause damage.
Areas at Risk
Cities like Fond du Lac, Kenosha, and Milwaukee will experience heat index values exceeding 95°F from noon to 6 p.m., creating unsafe conditions for outdoor events and for vulnerable individuals, such as the elderly and those with health conditions. The most intense storms are expected near Dodgeville and Baraboo, which will likely be hit during the evening commute.
What You Should Do
Given the high heat, residents are urged to stay hydrated, avoid prolonged outdoor activity during the hottest parts of the day, and take precautions against the potential for sudden, powerful storms. If you’re outside, be sure to secure any loose items that could be blown away by gusty winds. If you’re driving in the evening, remain alert for rapid changes in weather, including sudden gusts and heavy rain.
When Will the Storms End?
The storms should start to die down by early Monday morning, and cooler, less humid air will move into the region, bringing some relief from the heat and humidity.
Sunday evening in Wisconsin is shaping up to be hot and stormy. With a dangerously high heat index nearing 100°F and strong thunderstorms expected between 5 and 9 p.m., residents should take precautions, stay hydrated, and avoid outdoor activities during peak heat. Keep an eye on local weather updates, and be prepared for sudden changes as the storms move through.
