At 605 PM CDT, Doppler radar was tracking a strong thunderstorm over Chelsea, moving southwest at 15 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Alabaster, Pelham, Chelsea, Columbiana, Wilsonville, Vincent, Harpersville, Westover, Highland Lakes, Oak Mountain State Park, Fowler Lake, Vandiver, Mount Laurel, Sterrett, Ballantrae, Camp Branch, Saddle Lake Farms, and Bounds Lake.