At 1247 pm mdt, severe thunderstorms were located along a line extending from 6 miles west of brady to 22 miles south of geyser, moving northeast at 35 mph (radar indicated. at 1229 pm 66 mph wind gust was reported near ulm). Hazards include 60 mph wind gusts. Expect damage to roofs, siding, and trees. locations impacted include, great falls, fort benton, stanford, belt, geraldine, fort shaw, the knees, highwood, black eagle, geyser, fort shaw, carter, neihart, floweree, eden, stockett, first peoples buffalo jump state park, shonkin, loma and ulm. hail threat, radar indicated max hail size, <. 75 in wind threat, observed max wind gust, 60 mph.