846
FZUS52 KCHS 171749
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
149 PM EDT WED SEP 17 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
AMZ300-180600-
149 PM EDT WED SEP 17 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
WEAK HIGH PRESSURE WILL EXTEND ACROSS THE REGION THIS WEEK.
STRONGER HIGH PRESSURE WILL BUILD INTO THE REGION OVER THE
WEEKEND AND EARLY NEXT WEEK, WHILE A COASTAL TROUGH DEVELOPS
OFFSHORE.
AMZ330-180600-
CHARLESTON HARBOR-
149 PM EDT WED SEP 17 2025
THIS AFTERNOON
SW WINDS 5 TO 10 KT.
TONIGHT
SW WINDS 5 TO 10 KT.
THU
W WINDS 5 KT, BECOMING S IN THE AFTERNOON.
THU NIGHT
S WINDS 5 KT.
FRI
VARIABLE WINDS 5 KT.
FRI NIGHT
E WINDS 5 KT.
SAT
NE WINDS 10 TO 15 KT.
SAT NIGHT
NE WINDS 10 TO 15 KT. A SLIGHT CHANCE OF SHOWERS.
SUN
NE WINDS 10 TO 15 KT. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF TSTMS.
SUN NIGHT
NE WINDS 10 TO 15 KT. A SLIGHT 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 78 DEGREES.
AMZ350-180600-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
149 PM EDT WED SEP 17 2025
THIS AFTERNOON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E
2 FT AT 8 SECONDS AND SW 1 FOOT AT 2 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 8 SECONDS.
THU
W WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT
3 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND S 1 FOOT AT 3 SECONDS.
FRI
N WINDS 5 KT, BECOMING E IN THE AFTERNOON. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 9 SECONDS AND S 1 FOOT AT 3 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
SUN
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 TO 6 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ352-180600-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
149 PM EDT WED SEP 17 2025
THIS AFTERNOON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E
2 FT AT 7 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SW 1 FOOT AT 2 SECONDS.
THU
W WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT
3 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND S 1 FOOT AT 3 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND S 1 FOOT AT 3 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT NIGHT
NE WINDS 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SUN
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ354-180600-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
149 PM EDT WED SEP 17 2025
THIS AFTERNOON
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E
2 FT AT 9 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS.
THU
W WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND S 1 FOOT AT 3 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SE 1 FOOT AT 3 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SE 1 FOOT AT 4 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
2 FT AT 8 SECONDS.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT NIGHT
NE WINDS 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SUN
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ374-180600-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
149 PM EDT WED SEP 17 2025
THIS AFTERNOON
SW WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 9 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 9 SECONDS.
THU
SW WINDS 5 KT, BECOMING NE IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SE 1 FOOT AT 3 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
IN THE AFTERNOON.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS AFTER
MIDNIGHT.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS AND TSTMS.
SUN
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 FT. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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