SVRMKX The National Weather Service in Milwaukee/Sullivan has issued a * Severe Thunderstorm Warning for... Southern Columbia County in south central Wisconsin... Dane County in south central Wisconsin... * Until 1030 AM CDT. * At 945 AM CDT, a severe thunderstorm was located near Deforest, or near Windsor, moving east at 30 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Madison, Sun Prairie, Fitchburg, Middleton, Stoughton, Waunakee, Verona, Oregon, McFarland, Monona, Mount Horeb, Windsor, Edgerton, Columbus, Prairie Du Sac, Marshall, Sauk City, Lake Wisconsin, Deforest, and Cottage Grove. People attending Madison Ride the Drive , and Belleville Community Picnic should seek safe shelter immediately! Other landmarks included are the following Locations Wisconsin State Capitol and Gibraltar Rock Natural Area County Park. …