At 454 PM MDT, Doppler radar was tracking a strong thunderstorm 11 miles north of Harrison, or 25 miles east of Lusk, moving east at 40 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible.
Locations impacted include... Harrison, Montrose, and Toadstool Geological Park and Campground.