Active Weather Alerts
Coastal Flood Advisory
Issued: 6:18 PM Sep. 8, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT EDT TONIGHT... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 AM TO NOON EDT TUESDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... * WHAT...For the first Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 feet Mean Lower Low Water at Charleston). For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 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 first Coastal Flood Advisory, from 7 PM this evening to midnight EDT tonight. For the second Coastal Flood Advisory, from 7 AM to noon EDT Tuesday. For the High Rip Current Risk, from Tuesday morning through Tuesday 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 9:14 PM tonight and 9:35 AM Tuesday morning 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 -------- --------- --------- --------- ------- -------- 08/09 PM 7.7 1.9 1.4 N/A Moderate 09/09 AM 7.7 1.9 1.4 N/A Moderate 09/10 PM 7.6 1.8 1.4 N/A Moderate 10/10 AM 7.5 1.7 1.0 N/A Moderate 10/10 PM 6.8 1.0 1.0 N/A None 11/11 AM 7.4 1.6 0.9 N/A Minor &&
Coastal Flood Advisory
Issued: 6:18 PM Sep. 8, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT EDT TONIGHT... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 AM TO NOON EDT TUESDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... * WHAT...For the first Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 feet Mean Lower Low Water at Charleston). For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 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 first Coastal Flood Advisory, from 7 PM this evening to midnight EDT tonight. For the second Coastal Flood Advisory, from 7 AM to noon EDT Tuesday. For the High Rip Current Risk, from Tuesday morning through Tuesday 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 9:14 PM tonight and 9:35 AM Tuesday morning 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 -------- --------- --------- --------- ------- -------- 08/09 PM 7.7 1.9 1.4 N/A Moderate 09/09 AM 7.7 1.9 1.4 N/A Moderate 09/10 PM 7.6 1.8 1.4 N/A Moderate 10/10 AM 7.5 1.7 1.0 N/A Moderate 10/10 PM 6.8 1.0 1.0 N/A None 11/11 AM 7.4 1.6 0.9 N/A Minor &&
Rip Current Statement
Issued: 6:18 PM Sep. 8, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT EDT TONIGHT... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 AM TO NOON EDT TUESDAY... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING... * WHAT...For the first Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 feet Mean Lower Low Water at Charleston). For the second Coastal Flood Advisory, up to one foot of inundation above ground level expected along shorelines and tidal waterways (7.6 to 7.8 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 first Coastal Flood Advisory, from 7 PM this evening to midnight EDT tonight. For the second Coastal Flood Advisory, from 7 AM to noon EDT Tuesday. For the High Rip Current Risk, from Tuesday morning through Tuesday 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 9:14 PM tonight and 9:35 AM Tuesday morning 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 -------- --------- --------- --------- ------- -------- 08/09 PM 7.7 1.9 1.4 N/A Moderate 09/09 AM 7.7 1.9 1.4 N/A Moderate 09/10 PM 7.6 1.8 1.4 N/A Moderate 10/10 AM 7.5 1.7 1.0 N/A Moderate 10/10 PM 6.8 1.0 1.0 N/A None 11/11 AM 7.4 1.6 0.9 N/A Minor &&
Small Craft Advisory
Issued: 5:41 PM Sep. 8, 2025 – National Weather Service
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EDT WEDNESDAY... * WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft. * WHERE...South Santee River to Edisto Beach out 20 NM. * WHEN...Until 6 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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