Coastal Flood Advisory

Coastal Hazard Message
National Weather Service Charleston SC
1027 AM EDT Sat Oct 4 2025

SCZ049-050-042230-
/O.NEW.KCHS.CF.Y.0033.251004T2100Z-251005T0100Z/
/O.CON.KCHS.RP.S.0009.000000T0000Z-251005T0000Z/
Coastal Colleton-Charleston-
1027 AM EDT Sat Oct 4 2025

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
9 PM EDT THIS EVENING...

* WHAT...For the High Rip Current Risk, dangerous rip currents.
  For the Coastal Flood Advisory, up to one half foot of
  inundation above ground level expected along shorelines and
  tidal waterways (7.3 to 7.5 feet Mean Lower Low Water at
  Charleston).

* WHERE...Coastal Colleton and Charleston Counties.

* WHEN...For the High Rip Current Risk, until 8 PM EDT this
  evening. For the Coastal Flood Advisory, from 5 PM this
  afternoon to 9 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 6:30 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
 --------  ---------  ---------  ---------  -------  --------
 04/06 PM     7.4        1.6        1.2       N/A     Minor
 05/07 AM     7.2        1.4        1.1       N/A     Minor
 05/07 PM     7.4        1.6        1.0       N/A     Minor
 06/08 AM     7.5        1.7        1.0       N/A    Moderate
 06/08 PM     7.3        1.5        0.9       N/A     Minor

&&

$$