WATERLOO – This is an EXTREMELY DANGEROUS SITUATION. This storm is producing widespread wind damage across the warned area. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. Target Area: Black Hawk; Grundy; Hardin A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR SOUTHEASTERN HARDIN…SOUTHWESTERN BLACK HAWK…NORTHERN TAMA AND GRUNDY COUNTIES At 1159 AM CDT, a severe thunderstorm was located 7 miles east of Conrad, or 8 miles south of Grundy Center, moving east at 50 mph. HAZARD…70 mph wind gusts and quarter size hail. SOURCE…Trained weather spotters. IMPACT…Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include Eldora, Grundy Center, Hudson, Reinbeck, Dike, Conrad, Wellsburg, Union, Steamboat Rock, Holland, New Providence, Beaman, Lincoln, Whitten, Morrison, Pine Lake State Park, Tf Clark State Park and Eldora Municipal Airport.