129  
FZUS52 KCHS 041138  
CWFCHS  
 
COASTAL WATERS FORECAST  
NATIONAL WEATHER SERVICE CHARLESTON SC  
738 AM EDT FRI JUL 4 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  
 
AMZ300-050000-  
738 AM EDT FRI JUL 4 2025  
 
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA  
AND NORTH COASTAL GEORGIA...  
A WEAK AREA OF LOW PRESSURE WILL DEVELOP ALONG A STALLED FRONT  
OFF THE SOUTHEAST COAST TODAY AND COULD LINGER OFFSHORE THROUGH  
THE WEEKEND. THE LOW SHOULD THEN DEPART EARLY NEXT WEEK AS HIGH  
PRESSURE BUILDS OVER THE REGION.  
 
 
 
AMZ330-050000-  
CHARLESTON HARBOR-  
738 AM EDT FRI JUL 4 2025  
   
TODAY  
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT WITH GUSTS  
TO 20 KT THIS AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND TSTMS  
LATE THIS MORNING. A CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT  
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. A CHANCE OF  
SHOWERS AND TSTMS.    
SAT  
E WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. WAVES 1 TO 2 FT. SHOWERS. A CHANCE OF TSTMS IN THE  
MORNING, THEN TSTMS LIKELY IN THE AFTERNOON.    
SAT NIGHT  
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. SHOWERS  
LIKELY. A CHANCE OF TSTMS, MAINLY IN THE EVENING.    
SUN  
E WINDS 10 KT, BECOMING SE IN THE AFTERNOON. SHOWERS  
LIKELY WITH A CHANCE OF TSTMS.    
SUN NIGHT  
S WINDS 10 KT. A CHANCE OF SHOWERS AND TSTMS.    
MON  
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.    
MON NIGHT  
SW WINDS 5 TO 10 KT. A SLIGHT CHANCE OF SHOWERS AND  
TSTMS.    
TUE  
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT  
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.  
 
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.  
 
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.  
 
CHARLESTON HARBOR WATER TEMPERATURE 85 DEGREES.  
 
 
 
AMZ350-050000-  
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-  
738 AM EDT FRI JUL 4 2025  
   
TODAY  
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT WITH GUSTS  
TO 20 KT THIS AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT  
7 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TONIGHT  
E WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E  
5 FT AT 6 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE  
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT,  
BUILDING TO 5 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: E 5 FT AT  
6 SECONDS, BECOMING E 6 FT AT 7 SECONDS. SHOWERS WITH A CHANCE OF  
TSTMS.    
SAT NIGHT  
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO  
6 FT. WAVE DETAIL: E 6 FT AT 8 SECONDS. SHOWERS LIKELY WITH A  
CHANCE OF TSTMS.    
SUN  
E WINDS 15 KT WITH GUSTS TO 20 KT, BECOMING S IN THE  
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT AT 8 SECONDS.  
SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
SUN NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE  
5 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
MON  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
MON NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF TSTMS.    
TUE  
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS  
AND TSTMS.    
TUE NIGHT  
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF  
SHOWERS AND TSTMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
 
 
AMZ352-050000-  
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-  
738 AM EDT FRI JUL 4 2025  
   
TODAY  
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH  
GUSTS TO 20 KT THIS AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO  
4 FT THIS AFTERNOON. WAVE DETAIL: SE 3 FT AT 7 SECONDS, BECOMING  
SE 4 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS EARLY  
THIS MORNING. A CHANCE OF SHOWERS AND TSTMS LATE THIS MORNING AND  
EARLY AFTERNOON, THEN A SLIGHT CHANCE OF SHOWERS AND TSTMS LATE.    
TONIGHT  
E WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
4 FT AT 6 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE  
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT,  
BUILDING TO 5 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: NE 5 FT AT  
6 SECONDS, BECOMING NE 6 FT AT 6 SECONDS. SHOWERS WITH A CHANCE  
OF TSTMS.    
SAT NIGHT  
E WINDS 15 TO 20 KT, BECOMING NE 10 TO 15 KT AFTER  
MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 4 TO 5 FT AFTER MIDNIGHT.  
WAVE DETAIL: E 6 FT AT 7 SECONDS, BECOMING E 5 FT AT 8 SECONDS.  
SHOWERS LIKELY. A CHANCE OF TSTMS, MAINLY IN THE EVENING.    
SUN  
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING S IN THE  
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT AT 8 SECONDS. A  
CHANCE OF SHOWERS AND TSTMS.    
SUN NIGHT  
SW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT  
AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
MON  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON NIGHT  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS.    
TUE  
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS.    
TUE NIGHT  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS  
AND TSTMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
 
 
AMZ354-050000-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING  
GRAYS REEF NATIONAL MARINE SANCTUARY-  
738 AM EDT FRI JUL 4 2025  
   
TODAY  
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT THIS  
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS. A  
SLIGHT CHANCE OF SHOWERS AND TSTMS THIS MORNING, THEN A CHANCE OF  
SHOWERS AND TSTMS THIS AFTERNOON.    
TONIGHT  
E WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.  
WAVE DETAIL: NE 4 FT AT 6 SECONDS. A CHANCE OF TSTMS. A CHANCE OF  
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.  
WAVE DETAIL: NE 5 FT AT 6 SECONDS. SHOWERS WITH A CHANCE OF  
TSTMS.    
SAT NIGHT  
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT, SUBSIDING TO  
3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT AT 6 SECONDS,  
BECOMING NE 4 FT AT 7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF  
TSTMS IN THE EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF TSTMS AFTER MIDNIGHT.    
SUN  
SW WINDS 10 TO 15 KT, BECOMING S IN THE AFTERNOON. SEAS  
3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS. A CHANCE OF  
SHOWERS. A SLIGHT CHANCE OF TSTMS IN THE MORNING, THEN A CHANCE  
OF TSTMS IN THE AFTERNOON.    
SUN NIGHT  
SW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT  
AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS, MAINLY IN THE  
EVENING.    
MON  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
MON NIGHT  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF  
SHOWERS AND TSTMS.    
TUE  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS  
AND TSTMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
 
 
AMZ374-050000-  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-  
738 AM EDT FRI JUL 4 2025  
   
TODAY  
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT LATE.  
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS. A CHANCE OF  
SHOWERS AND TSTMS.    
TONIGHT  
E WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT,  
BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: NE 4 FT AT  
6 SECONDS, BECOMING NE 5 FT AT 6 SECONDS. A CHANCE OF TSTMS.  
SHOWERS.   
SAT  
E WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT  
AT 6 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.    
SAT NIGHT  
NE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT AFTER  
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS.  
SHOWERS LIKELY WITH A CHANCE OF TSTMS.    
SUN  
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT  
AT 8 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY IN THE  
MORNING.    
SUN NIGHT  
SW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT  
AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
MON  
SW WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS WITH A  
SLIGHT CHANCE OF TSTMS.    
MON NIGHT  
SW WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS WITH  
A SLIGHT CHANCE OF TSTMS.    
TUE  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF SHOWERS  
AND TSTMS.    
TUE NIGHT  
SW WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS  
WITH A SLIGHT CHANCE OF TSTMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
 
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