215  
WHUS42 KCHS 110155  
CFWCHS  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
955 PM EDT WED APR 10 2024  
 
SCZ050-111000-  
/O.CON.KCHS.CF.Y.0012.000000T0000Z-240411T0400Z/  
/O.CON.KCHS.SU.Y.0005.240411T1200Z-240412T1200Z/  
/O.CON.KCHS.RP.S.0001.240411T1200Z-240412T0000Z/  
CHARLESTON-  
955 PM EDT WED APR 10 2024  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT  
TONIGHT...  
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 8 AM THURSDAY TO  
8 AM EDT FRIDAY...  
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 8 AM EDT THURSDAY  
THROUGH THURSDAY EVENING...  
 
* WHAT...FOR THE COASTAL FLOOD ADVISORY, UP TO ONE HALF FOOT OF  
INUNDATION ABOVE GROUND LEVEL ALONG SHORELINES AND TIDAL  
WATERWAYS (7.1 TO 7.3 FEET MEAN LOWER LOW WATER AT CHARLESTON).  
FOR THE HIGH SURF ADVISORY, LARGE BREAKING WAVES OF 5 TO 6 FEET  
EXPECTED IN THE SURF ZONE. FOR THE HIGH RIP CURRENT RISK,  
DANGEROUS RIP CURRENTS EXPECTED.  
 
* WHERE...CHARLESTON COUNTY.  
 
* WHEN...FOR THE COASTAL FLOOD ADVISORY, UNTIL MIDNIGHT EDT  
TONIGHT. FOR THE HIGH SURF ADVISORY, FROM 8 AM THURSDAY TO 8  
AM EDT FRIDAY. FOR THE HIGH RIP CURRENT RISK, FROM 8 AM EDT  
THURSDAY THROUGH THURSDAY 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 10:24 PM  
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.  
 
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  
-------- --------- --------- --------- ------- --------  
10/10 PM 7.2 1.4 0.7 N/A MINOR  
11/11 AM 6.1 0.3 0.9 N/A NONE  
11/11 PM 6.3 0.5 0.0 N/A NONE  
12/12 PM 4.2 -1.6 -0.7 N/A NONE  
13/12 AM 5.2 -0.6 -0.7 N/A NONE  
13/01 PM 4.5 -1.3 -0.1 N/A NONE  
 

 
 

 
 
SCZ049-111000-  
/O.CON.KCHS.CF.Y.0012.000000T0000Z-240411T0400Z/  
/O.CON.KCHS.RP.S.0001.240411T1200Z-240412T0000Z/  
COASTAL COLLETON-  
955 PM EDT WED APR 10 2024  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT  
TONIGHT...  
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 8 AM EDT THURSDAY  
THROUGH THURSDAY EVENING...  
 
* WHAT...FOR THE COASTAL FLOOD ADVISORY, UP TO ONE HALF FOOT OF  
INUNDATION ABOVE GROUND LEVEL ALONG SHORELINES AND TIDAL  
WATERWAYS (7.1 TO 7.3 FEET MEAN LOWER LOW WATER AT  
CHARLESTON). FOR THE HIGH RIP CURRENT RISK, DANGEROUS RIP  
CURRENTS EXPECTED.  
 
* WHERE...COASTAL COLLETON COUNTY.  
 
* WHEN...FOR THE COASTAL FLOOD ADVISORY, UNTIL MIDNIGHT EDT  
TONIGHT. FOR THE HIGH RIP CURRENT RISK, FROM 8 AM EDT THURSDAY  
THROUGH THURSDAY 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 10:24 PM  
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  
-------- --------- --------- --------- ------- --------  
10/10 PM 7.2 1.4 0.7 N/A MINOR  
11/11 AM 6.1 0.3 0.9 N/A NONE  
11/11 PM 6.3 0.5 0.0 N/A NONE  
12/12 PM 4.2 -1.6 -0.7 N/A NONE  
13/12 AM 5.2 -0.6 -0.7 N/A NONE  
13/01 PM 4.5 -1.3 -0.1 N/A NONE  
 

 
 

 
 
GAZ117-119-139-141-SCZ048-051-111000-  
/O.CON.KCHS.RP.S.0001.240411T1200Z-240412T0000Z/  
COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-  
BEAUFORT-COASTAL JASPER-  
955 PM EDT WED APR 10 2024  
 
...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 8 AM EDT THURSDAY  
THROUGH THURSDAY EVENING...  
 
* WHAT...DANGEROUS RIP CURRENTS EXPECTED.  
 
* WHERE...GEORGIA BEACHES, BEAUFORT, AND COASTAL JASPER.  
 
* WHEN...FROM 8 AM EDT THURSDAY THROUGH THURSDAY 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.  
 

 
 

 
 
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