At 619 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles northeast of Hayes, or 26 miles west of Fort Pierre, moving northeast at 40 mph. HAZARD...Wind gusts up to 50 mph and half inch 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... Mission Ridge.