FIRST ALERT: Tornado watch in effect for 21 S.C. counties


Photo: Live 5 News

Photo: Live 5 News

By Patrick Phillips | September 17, 2020 at 10:40 AM EDT - Updated September 17 at 10:40 AM

CHARLESTON, S.C. (WCSC) - The National Weather Service has issued a tornado watch for 21 counties across South Carolina, including two in the Lowcountry.

The watch includes Williamsburg and Georgetown Counties and is in effect until 6 p.m. Thursday.

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A tornado watch means conditions are favorable for the formation of a tornado. If an actual tornado is spotted, a tornado warning would be declared for that area.

The watch also includes Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon, Darlington, Dillon, Florence, Horry, Kershaw, Lee, Lexington, Marion, Marlboro, Orangeburg, Richland, Saluda and Sumter Counties.

The watch comes as remnants of Sally move across South Carolina.

The Live 5 Weather team declared Thursday a First Alert Weather Day because of expected periods of heavy rain, the potential for flooding, and a chance of tornadoes.

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