Wisconsin Severe Severe Thunderstorm Warning | Effective 06/17/2026 17:23

Headline: 
Severe Thunderstorm Warning issued June 17 at 7:23PM CDT until June 17 at 8:00PM CDT by NWS Milwaukee/Sullivan WI
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 17, 2026 - 5:23pm
Expires: 
June 17, 2026 - 6:00pm
Description: 
SVRMKX The National Weather Service in Milwaukee/Sullivan has issued a * Severe Thunderstorm Warning for... Jefferson County in southeastern Wisconsin... * Until 800 PM CDT. * At 723 PM CDT, severe thunderstorms were located along a line extending from near Lake Ripley to near Edgerton, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Whitewater, Fort Atkinson, Jefferson, Lake Mills, Johnson Creek, Palmyra, Cambridge, Lake Ripley, Lake Koshkonong, Rome, Hebron, Sullivan, Busseyville, Helenville, and Nws Milwaukee/sullivan.
Instruction: 
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. A Tornado Watch remains in effect until 900 PM CDT for southeastern Wisconsin.
Area Description: 
Jefferson, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI