At 816 pm mdt, severe thunderstorms were located along a line extending from 7 miles southeast of moon to 4 miles northeast of pringle, moving northeast at 35 mph (trained weather spotters. at 814 pm mdt, golf ball sized hail was reported 7 miles southwest of custer). Hazards include golf ball size hail and 60 mph wind gusts. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect wind damage to roofs, siding, and trees. severe thunderstorms will be near, custer, blue bell and bear mountain lookout around 825 pm mdt. legion lake, mount coolidge, stockade lake and medicine mountain around 830 pm mdt. center lake, black hills playhouse and state game lodge around 835 pm mdt. other locations in the path of these severe thunderstorms include mount rushmore national memorial, horse thief lake, keystone, hayward, keystone wye, mystic, silver city, rockerville, pactola reservoir, southwestern rapid city, hart ranch, reptile gardens and bear country. thunderstorm damage threat, considerable hail threat, observed max hail size, 1. 75 in wind threat, radar indicated max wind gust, 60 mph.