If outdoors, consider seeking shelter inside a building.

At 247 PM EDT, Doppler radar was tracking a strong thunderstorm near Milford, moving northeast at 15 mph. HAZARD...Winds in excess of 40 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Oxford, Ortonville, Clarkston, Davisburg, White Lake, Holly State Recreation Area, Rose Center, and Waterford. This includes I-75 between mile markers 88 and 101.