At 327 PM MDT, Doppler radar was tracking a strong thunderstorm 11 miles northwest of Fort Fetterman Historic Site, or 18 miles northwest of Douglas, moving east at 30 mph.
HAZARD...Wind gusts of 50 to 55 mph and nickel 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... Douglas, Converse County Airport, and Fort Fetterman Historic Site.
This includes Interstate 25 in Wyoming between mile markers 137 and 143.