If outdoors, consider seeking shelter inside a building.

At 603 PM EDT, Doppler radar was tracking a strong thunderstorm near Banner Hill, or near Erwin, moving northeast at 20 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... Johnson City, Erwin, Banner Hill, Midway, Pine Crest, Unicoi, Milligan College, Embreeville, and Limestone Cove.