Active Weather Alerts
Special Weather Statement
Issued: 2:15 AM Apr. 4, 2026 – National Weather Service
...STRONG THUNDERSTORMS WILL IMPACT NORTHERN WALWORTH...NORTHEASTERN ROCK...WAUKESHA AND JEFFERSON COUNTIES THROUGH 1000 PM CDT... At 914 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Lake Koshkonong to 6 miles east of Milton to near Delavan to near Elkhorn. Movement was northeast at 40 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include... Waukesha, New Berlin, Watertown, Whitewater, Pewaukee, Fort Atkinson, Elkhorn, Hartland, Jefferson, Mukwonago, Delafield, Milton, East Troy, Wales, Okauchee Lake, Oconomowoc, Vernon, Ottawa, Johnson Creek, and Dousman. This includes the following highways... U.S. Highway 12 between mile markers 320 and 321. Interstate 39/90 near mile marker 163. Interstate 94 between mile markers 267 and 294, and between mile markers 297 and 300. Wisconsin Highway 26 between mile markers 9 and 37. Interstate 43 between mile markers 28 and 50. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && MAX HAIL SIZE...0.75 IN; MAX WIND GUST...<30 MPH
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