Charleston, SC – Residents along the South Carolina coast should prepare for potential flash flooding and heavy rain Tuesday afternoon, as scattered severe thunderstorms develop and move southward throughout the day.
According to the National Weather Service (NWS) in Charleston, a developing low-pressure system is expected to spark slow-moving thunderstorms along the coastal regions starting late morning and intensifying into the early evening. Forecasters warn these storms could produce torrential downpours, significantly increasing the risk of flash flooding by 8 p.m.
Areas particularly vulnerable to flooding include Charleston, Berkeley, Dorchester, Colleton, and Chatham counties. Urban streets, low-lying neighborhoods, and poor-drainage zones could see rapid water accumulation, creating hazardous conditions for commuters and pedestrians.
The Weather Prediction Center has issued a Level 2 “Slight Risk” for excessive rainfall. Residents should anticipate possible road closures and flash flood warnings into the late afternoon. Emergency officials recommend avoiding unnecessary travel, charging electronic devices, and closely monitoring local alerts for updates.
Flood watches and advisories are likely to continue through the evening. The next detailed advisory from the National Weather Service is expected by late Tuesday evening.



