930  
FZUS52 KCHS 261909  
CWFCHS  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE CHARLESTON SC  
309 PM EDT SAT APR 26 2025  
 
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  
 
AMZ300-270815-  
309 PM EDT SAT APR 26 2025  
 
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA  
AND NORTH COASTAL GEORGIA...  
A COLD FRONT WILL MOVE THROUGH TONIGHT, FOLLOWED BY HIGH PRESSURE  
THROUGH MUCH OF NEXT WEEK. ANOTHER COLD FRONT COULD APPROACH THE  
REGION LATE IN THE WEEK.  
 

 
 
AMZ330-270815-  
CHARLESTON HARBOR-  
309 PM EDT SAT APR 26 2025  
   
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING  
TO 5 TO 10 KT LATE THIS EVENING. A CHANCE OF SHOWERS AND TSTMS  
EARLY THIS EVENING.    
SUN
 
N WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT IN THE  
AFTERNOON.    
SUN NIGHT
 
E WINDS 10 KT.    
MON
 
E WINDS 10 KT.    
MON NIGHT
 
E WINDS 5 TO 10 KT.    
TUE
 
SE WINDS 5 TO 10 KT.    
TUE NIGHT
 
S WINDS 5 TO 10 KT.    
WED
 
SW WINDS 5 TO 10 KT.    
WED NIGHT
 
S WINDS 10 KT.    
THU
 
SW WINDS 10 KT.    
THU NIGHT
 
S WINDS 10 KT.  
 
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.  
 
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.  
 
CHARLESTON HARBOR WATER TEMPERATURE 75 DEGREES.  
 

 
 
AMZ350-270815-  
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-  
309 PM EDT SAT APR 26 2025  
   
TONIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
3 FT AT 9 SECONDS AND S 2 FT AT 4 SECONDS. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS EARLY THIS EVENING. A SLIGHT CHANCE OF SHOWERS  
AND TSTMS LATE.    
SUN
 
N WINDS 10 TO 15 KT, BECOMING NE IN THE AFTERNOON. SEAS  
3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SE 3 FT AT  
9 SECONDS.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 8 SECONDS.    
MON NIGHT
 
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
3 FT AT 8 SECONDS.    
TUE
 
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT  
AT 8 SECONDS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.    
WED
 
SW WINDS 10 KT. SEAS 2 TO 3 FT.    
WED NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.    
THU
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.    
THU NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 

 
 
AMZ352-270815-  
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-  
309 PM EDT SAT APR 26 2025  
   
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING  
TO 5 TO 10 KT LATE. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT  
4 SECONDS AND SE 3 FT AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS  
AND TSTMS EARLY THIS EVENING.    
SUN
 
N WINDS 10 TO 15 KT, BECOMING NE WITH GUSTS TO 20 KT IN  
THE AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE  
AFTERNOON. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND SW 1 FOOT AT  
4 SECONDS, BECOMING SE 3 FT AT 9 SECONDS AND NE 2 FT AT  
3 SECONDS.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE  
3 FT AT 8 SECONDS AND E 2 FT AT 5 SECONDS.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 8 SECONDS.    
MON NIGHT
 
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
3 FT AT 8 SECONDS.    
TUE
 
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT  
AT 8 SECONDS.    
TUE NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.    
WED
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.    
WED NIGHT
 
S WINDS 10 KT. SEAS 2 TO 3 FT.    
THU
 
S WINDS 10 KT. SEAS 2 TO 3 FT.    
THU NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 

 
 
AMZ354-270815-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING  
GRAYS REEF NATIONAL MARINE SANCTUARY-  
309 PM EDT SAT APR 26 2025  
   
TONIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING SW  
LATE. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 3 FT  
AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS EARLY THIS  
EVENING.    
SUN
 
NW WINDS 5 TO 10 KT, BECOMING NE 15 TO 20 KT IN THE  
AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE  
AFTERNOON. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND S 2 FT AT  
4 SECONDS, BECOMING SE 3 FT AT 9 SECONDS AND E 2 FT AT 3 SECONDS.   
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
2 FT AT 4 SECONDS AND SE 2 FT AT 9 SECONDS. A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 5 SECONDS AND E 3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
3 FT AT 5 SECONDS AND E 3 FT AT 8 SECONDS.    
TUE
 
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 8 SECONDS.    
TUE NIGHT
 
SE WINDS 10 KT. SEAS 2 TO 3 FT.    
WED
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.    
WED NIGHT
 
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.    
THU
 
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.    
THU NIGHT
 
S WINDS 15 KT. SEAS 3 TO 4 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 

 
 
AMZ374-270815-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-  
309 PM EDT SAT APR 26 2025  
   
TONIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING SW  
LATE. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND E  
1 FOOT AT 14 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS EARLY  
THIS EVENING.    
SUN
 
W WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH GUSTS TO  
20 KT IN THE AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT  
9 SECONDS AND NE 2 FT AT 4 SECONDS.    
SUN NIGHT
 
E WINDS 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT  
AT 5 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS WITH A  
SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 3 FT  
AT 5 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS WITH A  
SLIGHT CHANCE OF TSTMS IN THE MORNING, THEN A SLIGHT CHANCE OF  
SHOWERS IN THE AFTERNOON.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E  
4 FT AT 7 SECONDS.    
TUE
 
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT  
8 SECONDS.    
TUE NIGHT
 
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.   
WED
 
S WINDS 5 TO 10 KT. SEAS 3 FT.    
WED NIGHT
 
S WINDS 10 KT. SEAS 3 FT.    
THU
 
S WINDS 10 KT. SEAS 3 FT.    
THU NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab SC Page
The Nexlab GA Page Main Text Page