SVRMKX The National Weather Service in Milwaukee/Sullivan has issued a * Severe Thunderstorm Warning for... Northeastern Iowa County in south central Wisconsin... Southwestern Columbia County in south central Wisconsin... Northwestern Dane County in south central Wisconsin... Southeastern Sauk County in south central Wisconsin... * Until 900 PM CDT. * At 826 PM CDT, a severe thunderstorm was located over Prairie Du Sac, moving south at 30 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. * Locations impacted include... Prairie Du Sac, Sauk City, Lake Wisconsin, Cross Plains, Mazomanie, Black Earth, Arena, and Marxville.