Severe Thunderstorm Warning

Locations Affected

Theodore Roosevelt National Memorial Park, ND ∙ Medora, ND

Full Alert Message

BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Bismarck ND Issued by National Weather Service Grand Forks ND 456 PM MDT Tue Aug 11 2026 The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... East central Golden Valley County in southwestern North Dakota... Southwestern Billings County in southwestern North Dakota... * Until 600 PM MDT. * At 456 PM MDT, a severe thunderstorm was located near Rough Rider State Park, or 17 miles east of Beach, moving east at 15 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Medora and Rough Rider State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4683 10380 4695 10375 4696 10334 4669 10341 TIME...MOT...LOC 2256Z 273DEG 12KT 4686 10365 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH

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