Wisconsin Severe Severe Thunderstorm Warning | Effective 07/20/2026 17:43

Headline: 
Severe Thunderstorm Warning issued July 20 at 7:43PM CDT until July 20 at 8:15PM CDT by NWS Green Bay WI
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 20, 2026 - 5:43pm
Expires: 
July 20, 2026 - 6:15pm
Description: 
At 743 PM CDT, a severe thunderstorm was located 9 miles northeast of McCaslin Mountain Natural Area, or 29 miles east of Crandon, moving southeast at 45 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe thunderstorm will be near... Wausaukee around 810 PM CDT. Other locations impacted by the severe thunderstorm include Silver Cliff, Mcclintock County Park, Goodman County Park, Caldron Falls Rese, Caldron Falls Reservoir, Athelstane and Cedarville.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. A Tornado Watch remains in effect until 1100 PM CDT Monday for a portion of northeast Wisconsin.
Area Description: 
Marinette, WI
Forcast Office: 
NWS Green Bay WI
Sender: 
w-nws.webmaster@noaa.gov