322
WHUS42 KCHS 211131
CFWCHS

Coastal Hazard Message
National Weather Service Charleston SC
731 AM EDT Thu Aug 21 2025

SCZ049-050-211945-
/O.NEW.KCHS.CF.Y.0013.250821T2200Z-250822T0200Z/
/O.CON.KCHS.SU.Y.0006.000000T0000Z-250821T2100Z/
/O.CON.KCHS.RP.S.0005.000000T0000Z-250822T0000Z/
Coastal Colleton-Charleston-
731 AM EDT Thu Aug 21 2025

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...
...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 Surf Advisory, large breaking waves up to 5
  feet in the surf zone. 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 Surf Advisory, until 5 PM EDT this
  afternoon. 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.
  Dangerous swimming and surfing conditions and localized beach
  erosion. Rip currents can sweep even the best swimmers away
  from shore into deeper water.

* ADDITIONAL DETAILS...High tide will occur around 7:45 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.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

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
 --------  ---------  ---------  ---------  -------  --------
 21/07 AM     6.7        0.9        1.5       N/A      None
 21/07 PM     7.4        1.6        1.2       N/A     Minor
 22/08 AM     6.4        0.6        1.0       N/A      None
 22/08 PM     7.2        1.4        1.0       N/A     Minor
 23/09 AM     6.6        0.8        1.1       N/A      None

&&

$$

SCZ048-051-211945-
/O.CON.KCHS.SU.Y.0006.000000T0000Z-250821T2100Z/
/O.CON.KCHS.RP.S.0005.000000T0000Z-250822T0000Z/
Beaufort-Coastal Jasper-
731 AM EDT Thu Aug 21 2025

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

* WHAT...For the High Surf Advisory, large breaking waves up to 5
  feet in the surf zone. For the High Rip Current Risk, dangerous
  rip currents.

* WHERE...Beaufort and Coastal Jasper Counties.

* WHEN...For the High Surf Advisory, until 5 PM EDT this
  afternoon. For the High Rip Current Risk, through this evening.

* IMPACTS...Dangerous swimming and surfing conditions and
  localized beach erosion. Rip currents can sweep even the best
  swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

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.

&&

$$

GAZ117-119-139-141-211945-
/O.CON.KCHS.RP.S.0005.000000T0000Z-250822T0000Z/
Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh-
731 AM EDT Thu Aug 21 2025

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

* WHAT...Dangerous rip currents.

* WHERE...Georgia Beaches.

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$