At 747 PM MDT, Doppler radar was tracking a strong thunderstorm 10 miles west of Wolf Creek, or 31 miles northwest of Helena, moving northeast at 30 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... Wolf Creek, Bowmans Corner, Craig, and Tower Rock State Park.