845  
WHUS42 KCHS 151809  
CFWCHS  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
209 PM EDT WED JUL 15 2026  
 
SCZ149-150-160215-  
/O.NEW.KCHS.CF.Y.0019.260716T0000Z-260716T0400Z/  
COASTAL COLLETON-CHARLESTON-  
209 PM EDT WED JUL 15 2026  
 
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO  
MIDNIGHT EDT TONIGHT...  
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL  
EXPECTED ALONG SHORELINES AND TIDAL WATERWAYS (7.2 TO 7.4 FEET  
MEAN LOWER LOW WATER AT CHARLESTON).  
 
* WHERE...COASTAL COLLETON AND CHARLESTON COUNTIES.  
 
* WHEN...FROM 8 PM THIS EVENING TO MIDNIGHT EDT TONIGHT.  
 
* IMPACTS...THIS COULD RESULT IN SOME ROADS BECOMING IMPASSABLE.  
 
* ADDITIONAL DETAILS...HIGH TIDE WILL OCCUR AROUND 9:53 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.  
 

 
 
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  
-------- --------- --------- --------- ------- --------  
15/09 AM 6.2 0.4 1.1 N/A NONE  
15/10 PM 7.3 1.5 0.8 N/A MINOR  
16/10 AM 5.9 0.1 0.6 N/A NONE  
16/11 PM 6.8 1.0 0.6 N/A NONE  
17/11 AM 5.9 0.1 0.6 N/A NONE  
18/12 AM 6.5 0.7 0.6 N/A NONE  
 

 
 

 
 
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