Immediate

At 307 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across Johnson Wash. Between 0.5 and 1.25 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks, streams, slot canyons, and normally dry washes. Some locations that will experience flash flooding include... Johnson Wash and Johnson Lakes Canyon.

At 310 PM MDT, a severe thunderstorm was located 10 miles northeast of Dickinson, moving east at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Hirschville. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

FFWSLC The National Weather Service in Salt Lake City has issued a * Flash Flood Warning for... South Central Garfield County in southern Utah... Northeastern Kane County in southern Utah... * Until 745 PM MDT. * At 246 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across primarily Brimhall Natural Bridge near Halls Creek. Water will continue to flow downstream through Halls Creek Narrows down to Lake Powell. Up to 1 inch of rain has fallen. Flash flooding is ongoing or expected to begin shortly.

SVRUNR The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Western Harding County in northwestern South Dakota... * Until 345 PM MDT. * At 250 PM MDT, a severe thunderstorm was located 13 miles southwest of Camp Crook, or 34 miles west of Buffalo, moving east at 45 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.

At 251 PM MDT, a severe thunderstorm was located 9 miles north of Dickinson, moving northeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Hirschville and New Hradec. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

At 250 PM MDT, severe thunderstorms were located along a line extending from 24 miles north of Lake Powell to 16 miles northeast of Big Water, moving east at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. These severe thunderstorms will remain over mainly rural areas of north central Kane County. For your protection move to an interior room on the lowest floor of a building.

At 354 PM CDT /254 PM MDT/, a severe thunderstorm was located 13 miles north of Killdeer, or 30 miles southeast of Watford City, moving northeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Mesonet reported. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Mckenzie Bay Recreation Area, Little Missouri State Park, Skunk Creek Bay Recreation Area and Fort Berthold.