From the Weather Channel:

Severe thunderstorms will be ongoing this morning across parts of the Tennessee Valley. New severe thunderstorms will likely to erupt this afternoon, from the Ohio River, south, across the Tennessee Valley, into the Deep South.

Some areas at greatest risk for severe thunderstorms today, include Huntsville, Birmingham, and Montgomery, Ala., Atlanta and Columbus, Ga., Nashville, Chattanooga, and Knoxville, Tenn., Lexington, Ky., and Charleston, WV.

Overnight, the threat will extend from southern Virginia, into the Carolinas; impacting cities such as Roanoke and Richmond, Vs., Raleigh and Charlotte, N.C., and Columbia, S.C.

All areas will be at risk for tornadoes, large hail, damaging winds, frequent lighting, and heavy downpours. The greatest risk of severe weather, including a possible tornado outbreak this afternoon and evening, includes northern Alabama, northern Georgia, and southern Tennessee.