Flash Flood Warning

Locations Affected

North Charleston, SC ∙ Charleston, SC ∙ Johns Island, SC ∙ James Island, SC ∙ Saint Andrews, SC ∙ Bear Swamp Division, SC ∙ Charleston Central Division, SC ∙ Charleston Executive Airport, SC ∙ James Island, SC ∙ Johns Island, SC

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Charleston SC 713 AM EDT Sat Aug 23 2025 The National Weather Service in Charleston has issued a * Flash Flood Warning for... Charleston County in southeastern South Carolina... * Until 1015 AM EDT. * At 713 AM EDT, Doppler radar and automated rain gauges indicated showers and thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen across an area from the City of Charleston to James Island north to Shadowmoss. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. In addition, Church Creek near West Ashley may rise above flood stage this morning. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... North Charleston, West Ashley, Downtown Charleston, James Island, Johns Island, Maybank Bridge, Charles Towne Landing, James Island County Park and Charleston Naval Complex. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. High tide will inhibit runoff of heavy rain, flooding areas of poor drainage in Downtown Charleston. Areas most prone to flooding include the Market, Crosstown, East Bay Street and Morrison Drive. && LAT...LON 3286 8013 3288 8011 3288 8006 3287 8006 3287 7999 3286 7999 3285 7994 3283 7994 3282 7992 3271 7992 3271 7993 3270 7993 3270 7996 3269 7996 3269 8005 3270 8005 3271 8008 3275 8009 3276 8011 3278 8012 FLASH FLOOD...RADAR AND GAUGE INDICATED

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