The National Weather Service in Columbia has issued a Flash Flood Warning for northeastern Clarendon County and central Sumter County. At 6:17 p.m., Doppler radar indicated a thunderstorm producing heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is expected to begin shortly, according to the NWS. Locations that could experience flooding include Manning, Turbeville, Paxville and Shiloh.