WWUS85 KBYZ 222219 SPSBYZ Special Weather Statement National Weather Service Billings MT 419 PM MDT Sat Aug 22 2026 MTZ030-057-222300- Treasure MT-Northern Big Horn MT- 419 PM MDT Sat Aug 22 2026 ...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN TREASURE AND NORTH CENTRAL BIG HORN COUNTIES UNTIL 5 PM MDT... At 419 PM MDT, Doppler radar was tracking a strong thunderstorm 20 miles north of Crow Agency moving north at 15 mph. HAZARD...Wind gusts up to 40 mph and half inch size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Mainly rural areas of Southeastern Treasure and North Central Big Horn Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4591 10713 4579 10728 4579 10746 4604 10751 4600 10703 TIME...MOT...LOC 2219Z 198DEG 14KT 4588 10735 MAX HAIL SIZE...0.50 IN MAX WIND GUST...40 MPH $$ McKeown-Robbie