Wisconsin Severe Severe Thunderstorm Warning | Effective 06/17/2026 18:01

Headline: 
Severe Thunderstorm Warning issued June 17 at 8:01PM CDT until June 17 at 8:45PM CDT by NWS Milwaukee/Sullivan WI
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 17, 2026 - 6:01pm
Expires: 
June 17, 2026 - 6:45pm
Description: 
At 801 PM CDT, severe thunderstorms were located along a line extending from near Palmyra to 7 miles south of Whitewater to near Janesville, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Janesville, Beloit, Whitewater, Elkhorn, Delavan, Lake Geneva, Milton, East Troy, Williams Bay, Genoa City, Walworth, Clinton, Fontana-On-Geneva Lake, Sharon, Darien, Como, Pell Lake, Potter Lake, Powers Lake, and Burlington.
Instruction: 
A Tornado Watch remains in effect until 900 PM CDT for south central and southeastern Wisconsin. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Rock, WI; Walworth, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI