At 802 pm mdt, severe thunderstorms were located along a line extending from near rochford to 5 miles northeast of jewel cave national monument to 5 miles southeast of burdock, moving east at 30 mph (radar indicated). Hazards include 60 mph wind gusts and quarter size hail. Hail damage to vehicles is expected. expect wind damage to roofs, siding, and trees. these severe storms will be near, rochford and bear mountain lookout around 805 pm mdt. other locations in the path of these severe thunderstorms include mystic, custer, crazy horse memorial, silver city, custer state park, sylvan lake, pactola reservoir, black elk peak, stockade lake, mount coolidge, blue bell, johnson siding, argyle, center lake, black hills playhouse, legion lake, mount rushmore national memorial, horse thief lake, keystone, cottonwood springs dam, state game lodge, hayward, cold brook reservoir and wind cave national park. This includes interstate 90 in south dakota between mile markers 54 and 57.