At 814 pm mdt, severe thunderstorms were located along a line extending from 17 miles southwest of cohagen to 11 miles west of crow agency, moving east at 30 mph. another severe thunderstorm was located 5 miles east of busby, moving east at 20 mph (radar indicated. these storms have a history of producing large hail and damaging winds). Hazards include 70 mph wind gusts and ping pong ball size hail. People and animals outdoors will be injured. expect hail damage to roofs, siding, windows, and vehicles. expect considerable tree damage. wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include, hardin, colstrip, forsyth, hysham, custer, lame deer, busby, crow agency, rosebud, bighorn, ingomar, cartersville, birney village, vananda, muddy cluster, northern cheyenne indian reservation and crow indian reservation.