Wisconsin Severe Severe Thunderstorm Warning | Effective 08/09/2026 09:29

Headline: 
Severe Thunderstorm Warning issued August 9 at 11:29AM CDT until August 9 at 12:00PM CDT by NWS Milwaukee/Sullivan WI
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
August 9, 2026 - 9:29am
Expires: 
August 9, 2026 - 10:00am
Description: 
At 1129 AM CDT, a severe thunderstorm was located over Hales Corners, moving east at 35 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Milwaukee, West Allis, Wauwatosa, New Berlin, Brookfield, Greenfield, Menomonee Falls, Oak Creek, Muskego, South Milwaukee, Cudahy, Whitefish Bay, Greendale, Brown Deer, St. Francis, Hales Corners, Fox Point, Elm Grove, Bayside, and West Milwaukee. People attending The Greenfield Farmers Market , and The Riverwest Farmers Market should seek safe shelter immediately!
Instruction: 
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Milwaukee, WI; Waukesha, WI
Forcast Office: 
NWS Milwaukee/Sullivan WI
Sender: 
w-nws.webmaster@noaa.gov