508  
WHUS42 KCHS 140845  
CFWCHS  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
345 AM EST SAT DEC 14 2024  
 
SCZ049-050-141400-  
/O.NEW.KCHS.CF.Y.0059.241214T1000Z-241214T1400Z/  
COASTAL COLLETON-CHARLESTON-  
345 AM EST SAT DEC 14 2024  
   
..COASTAL FLOOD ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING
 
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL  
EXPECTED ALONG SHORELINES AND TIDAL WATERWAYS (7.1 TO 7.3 FEET  
MEAN LOWER LOW WATER AT CHARLESTON).  
 
* WHERE...COASTAL COLLETON AND CHARLESTON COUNTIES.  
 
* WHEN...UNTIL 9 AM EST THIS MORNING.  
 
* IMPACTS...THIS COULD RESULT IN SOME ROADS BECOMING IMPASSABLE.  
 
* ADDITIONAL DETAILS...HIGH TIDE WILL OCCUR AROUND 6:41 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.  
 

 
 
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  
-------- --------- --------- --------- ------- --------  
14/07 AM 7.2 1.4 0.7 N/A MINOR  
14/07 PM 6.3 0.5 1.2 N/A NONE  
15/08 AM 7.5 1.7 1.1 N/A MODERATE  
15/08 PM 5.8 0.0 0.8 N/A NONE  
16/08 AM 6.9 1.1 0.6 N/A NONE  
16/09 PM 5.3 -0.5 0.4 N/A NONE  
 

 
 

 
 
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