Active Weather Alerts
Severe Thunderstorm Warning
Issued: 9:23 PM Aug. 21, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR WESTERN DANE COUNTY... At 422 PM CDT, a severe thunderstorm was located over Black Earth, or 7 miles north of Mount Horeb, moving southeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Western Madison, Middleton, Waunakee, Verona, Mount Horeb, Cross Plains, Black Earth, Blue Mounds, Pine Bluff, Mount Vernon, and Marxville. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && TORNADO...POSSIBLE; HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Tornado Warning
Issued: 9:19 PM Aug. 21, 2026 – National Weather Service
The National Weather Service in Milwaukee/Sullivan has issued a * Tornado Warning for... Southwestern Dane County in south central Wisconsin... * Until 500 PM CDT. * At 418 PM CDT, a severe thunderstorm capable of producing a tornado was located near Mount Horeb, moving southeast at 15 mph. HAZARD...Tornado. SOURCE...Weather spotters reported funnel cloud. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * This dangerous storm will be near... Mount Horeb around 425 PM CDT. Verona around 440 PM CDT. Other locations impacted by this tornadic thunderstorm include Mount Vernon and Blue Mounds. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. && TORNADO...RADAR INDICATED; MAX HAIL SIZE...<.75 IN
Severe Thunderstorm Watch
Issued: 9:00 PM Aug. 21, 2026 – National Weather Service
SEVERE THUNDERSTORM WATCH 610 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 9 COUNTIES IN SOUTH CENTRAL WISCONSIN DANE GREEN IOWA LAFAYETTE ROCK SAUK IN SOUTHEAST WISCONSIN JEFFERSON KENOSHA WALWORTH THIS INCLUDES THE CITIES OF ARGYLE, BARABOO, BARNEVELD, BELMONT, BELOIT, BENTON, BLANCHARDVILLE, BRODHEAD, DARLINGTON, DELAVAN, DODGEVILLE, EAST TROY, ELKHORN, FORT ATKINSON, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, MADISON, MINERAL POINT, MONROE, PRAIRIE DU SAC, REEDSBURG, SAUK CITY, SHULLSBURG, WATERTOWN, AND WHITEWATER.
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