At 458 PM MDT, Doppler radar was tracking a strong thunderstorm near Waltman Rest Area, which is 43 miles northeast of Jeffrey City, moving east at 25 mph.
HAZARD...Wind gusts up to 40 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... Powder River.