019  
FZUS52 KCHS 171345  
CWFCHS  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE CHARLESTON SC  
944 AM EDT TUE MAR 17 2026  
 
SOUTH SANTEE RIVER SC TO SAVANNAH GA OUT 20 NM AND SAVANNAH GA TO  
ALTAMAHA SOUND GA OUT 60 NM, INCLUDING CHARLESTON HARBOR AND  
GRAYS REEF NATIONAL MARINE SANCTUARY  
 
AMZ300-180300-  
944 AM EDT TUE MAR 17 2026  
 
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA  
AND NORTH COASTAL GEORGIA...  
HIGH PRESSURE WILL PREVAIL THROUGH THE WEEKEND.  
 
 
 
AMZ330-180300-  
CHARLESTON HARBOR-  
944 AM EDT TUE MAR 17 2026  
   
REST OF TODAY  
NW WINDS 10 KT.    
TONIGHT  
NW WINDS 5 TO 10 KT.    
WED  
NE WINDS 5 TO 10 KT.    
WED NIGHT  
N WINDS 5 KT.    
THU  
NE WINDS 5 KT.    
THU NIGHT  
VARIABLE WINDS 5 KT.    
FRI  
N WINDS 5 KT.    
FRI NIGHT  
S WINDS 5 KT.    
SAT  
SW WINDS 5 TO 10 KT.    
SAT NIGHT  
SW WINDS 10 KT.  
 
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.  
 
CHARLESTON HARBOR WATER TEMPERATURE 60 DEGREES.  
 
 
 
AMZ350-180300-  
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-  
944 AM EDT TUE MAR 17 2026  
   
REST OF TODAY  
NW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING  
TO 3 TO 4 FT THIS AFTERNOON. WAVE DETAIL: NW 4 FT AT 5 SECONDS  
AND SE 3 FT AT 8 SECONDS, BECOMING NW 3 FT AT 5 SECONDS AND SE  
3 FT AT 8 SECONDS.    
TONIGHT  
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE  
3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.    
WED  
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 5 FT.  
WAVE DETAIL: NE 4 FT AT 6 SECONDS AND W 1 FOOT AT 4 SECONDS.    
WED NIGHT  
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE  
4 FT AT 8 SECONDS.    
THU  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT  
AT 8 SECONDS.    
THU NIGHT  
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS  
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 9 SECONDS.    
FRI  
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 FT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 15 TO 20 KT. SEAS 4 FT.  
 
 
 
AMZ352-180300-  
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-  
944 AM EDT TUE MAR 17 2026  
   
REST OF TODAY  
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
THIS AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT THIS  
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 2 FT AT  
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND SE 2 FT AT  
8 SECONDS.    
TONIGHT  
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW  
2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.    
WED  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT  
AT 6 SECONDS AND NW 2 FT AT 3 SECONDS.    
WED NIGHT  
NE WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS.    
THU  
N WINDS 10 TO 15 KT, BECOMING NE 5 TO 10 KT IN THE  
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS.    
THU NIGHT  
E WINDS 5 KT, BECOMING N AFTER MIDNIGHT. SEAS 3 TO  
4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.    
FRI  
N WINDS 5 TO 10 KT. SEAS 3 FT.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 FT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.  
 
 
 
AMZ354-180300-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING  
GRAYS REEF NATIONAL MARINE SANCTUARY-  
944 AM EDT TUE MAR 17 2026  
   
REST OF TODAY  
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
THIS AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT THIS  
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 2 FT AT  
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND SE 2 FT AT  
8 SECONDS.    
TONIGHT  
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E  
3 FT AT 8 SECONDS AND NW 2 FT AT 3 SECONDS.    
WED  
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT  
IN THE AFTERNOON. WAVE DETAIL: N 3 FT AT 6 SECONDS, BECOMING NE  
3 FT AT 7 SECONDS.    
WED NIGHT  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL:  
NE 4 FT AT 7 SECONDS.    
THU  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT  
AT 7 SECONDS.    
THU NIGHT  
E WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS  
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.    
FRI  
N WINDS 5 TO 10 KT. SEAS 3 FT.    
FRI NIGHT  
S WINDS 10 KT. SEAS 3 FT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
 
 
AMZ374-180300-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-  
944 AM EDT TUE MAR 17 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY  
 
   
REST OF TODAY  
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT,  
DIMINISHING TO 10 TO 15 KT WITH GUSTS TO 20 KT THIS AFTERNOON.  
SEAS 5 TO 6 FT, SUBSIDING TO 4 TO 5 FT THIS AFTERNOON. WAVE  
DETAIL: NW 6 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS, BECOMING  
NW 5 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.    
TONIGHT  
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: NW 3 FT AT 5 SECONDS AND E 3 FT AT 8 SECONDS.    
WED  
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT  
IN THE AFTERNOON. WAVE DETAIL: E 4 FT AT 8 SECONDS AND N 3 FT AT  
4 SECONDS, BECOMING N 4 FT AT 7 SECONDS.    
WED NIGHT  
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO  
5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS.    
THU  
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS.    
THU NIGHT  
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E  
5 FT AT 8 SECONDS.    
FRI  
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.  
 
 
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