Active Weather Alerts
Coastal Flood Advisory
Issued: 5:37 AM Sep. 9, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO NOON EDT TODAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... * WHAT...For the Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). For the High Rip Current Risk, dangerous rip currents expected. * WHERE...Coastal Colleton and Charleston Counties. * WHEN...For the Coastal Flood Advisory, from 8 AM this morning to noon EDT today. For the High Rip Current Risk, from 8 AM EDT this morning through this evening. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...High tide will occur around 9:35 AM today 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 -------- --------- --------- --------- ------- -------- 09/10 AM 7.5 1.7 1.2 N/A Moderate 09/10 PM 7.4 1.6 1.2 N/A Minor 10/10 AM 7.4 1.6 0.9 N/A Minor 10/11 PM 6.8 1.0 0.9 N/A None 11/11 AM 7.3 1.5 0.8 N/A Minor &&
Rip Current Statement
Issued: 5:37 AM Sep. 9, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO NOON EDT TODAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING... * WHAT...For the Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.4 to 7.6 feet Mean Lower Low Water at Charleston). For the High Rip Current Risk, dangerous rip currents expected. * WHERE...Coastal Colleton and Charleston Counties. * WHEN...For the Coastal Flood Advisory, from 8 AM this morning to noon EDT today. For the High Rip Current Risk, from 8 AM EDT this morning through this evening. * IMPACTS...This will result in some roads becoming impassable and minor flooding of properties. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...High tide will occur around 9:35 AM today 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 -------- --------- --------- --------- ------- -------- 09/10 AM 7.5 1.7 1.2 N/A Moderate 09/10 PM 7.4 1.6 1.2 N/A Minor 10/10 AM 7.4 1.6 0.9 N/A Minor 10/11 PM 6.8 1.0 0.9 N/A None 11/11 AM 7.3 1.5 0.8 N/A Minor &&
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