Coastal Flood Advisory

Locations Affected

Charleston, SC ∙ North Charleston, SC ∙ Mount Pleasant, SC ∙ Edisto Island, SC ∙ Sullivan's Island, SC ∙ Lincolnville, SC ∙ Charleston Intl. Airport, SC ∙ Charleston Central Division, SC ∙ Wadmalaw Island, SC ∙ Awendaw, SC

Full Alert Message

Coastal Hazard Message National Weather Service Charleston SC 648 AM EDT Wed Sep 9 2026 ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 6 PM TO 10 PM EDT THIS EVENING... * WHAT...For the High Rip Current Risk, dangerous rip currents expected. For the Coastal Flood Advisory, up to one half foot of inundation above ground level expected along shorelines and tidal waterways (7.2 to 7.4 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...For the High Rip Current Risk, through this evening. For the Coastal Flood Advisory, from 6 PM to 10 PM EDT this evening. * IMPACTS...This could result in some roads becoming impassable. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...High tide will occur around 7:3 PM this evening at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide. PRECAUTIONARY/PREPAREDNESS ACTIONS... If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && Time of high total tides are approximate to the nearest hour. Charleston Harbor SC MLLW Categories - Minor 7.0 ft, Moderate 7.5 ft, Major 8.0 ft MHHW Categories - Minor 1.2 ft, Moderate 1.7 ft, Major 2.2 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 09/07 AM 6.8 1.0 1.0 N/A None 09/07 PM 7.3 1.5 0.8 N/A Minor 10/08 AM 6.7 0.9 0.6 N/A None 10/08 PM 7.1 1.3 0.6 N/A Minor 11/09 AM 6.6 0.8 0.4 N/A None

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