550
FZUS52 KCHS 170506
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
106 AM 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
AMZ300-171815-
106 AM 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.
AMZ330-171815-
CHARLESTON HARBOR-
106 AM EDT WED SEP 17 2025
REST OF TONIGHT
N WINDS 5 KT.
WED
NW WINDS 5 KT, BECOMING SW 10 KT IN THE AFTERNOON.
WED NIGHT
SW WINDS 5 TO 10 KT.
THU
W WINDS 5 KT, BECOMING S IN THE AFTERNOON.
THU NIGHT
S WINDS 5 KT.
FRI
N WINDS 5 KT, BECOMING E IN THE AFTERNOON.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT.
SAT
NE WINDS 10 TO 15 KT.
SAT NIGHT
NE WINDS 10 TO 15 KT.
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 77 DEGREES.
AMZ350-171815-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
106 AM EDT WED SEP 17 2025
REST OF TONIGHT
SW WINDS 5 KT, BECOMING NW. SEAS 1 TO 2 FT.
WAVE DETAIL: E 2 FT AT 7 SECONDS.
WED
W WINDS 5 KT, BECOMING SW 10 KT IN THE AFTERNOON. SEAS 1 TO
2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.
WED NIGHT
SW WINDS 10 KT. SEAS 1 TO 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 SW IN THE AFTERNOON. SEAS 1
TO 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 9 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 5 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SAT
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
SUN
NE WINDS 20 KT. SEAS 5 TO 6 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.
AMZ352-171815-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
106 AM EDT WED SEP 17 2025
REST OF TONIGHT
SW WINDS 5 KT. SEAS 1 TO 2 FT. WAVE DETAIL: E
2 FT AT 9 SECONDS.
WED
W WINDS 5 KT, BECOMING SW 10 KT IN THE AFTERNOON. SEAS 1 TO
2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS.
WED NIGHT
SW WINDS 10 KT. SEAS 1 TO 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SW 1 FOOT AT 2 SECONDS.
THU
W WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 1 TO 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
N WINDS 5 KT, BECOMING E IN THE AFTERNOON. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 8 SECONDS AND S 1 FOOT AT 5 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT.
SAT
NE WINDS 15 TO 20 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 6 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 TO 6 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ354-171815-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
106 AM EDT WED SEP 17 2025
REST OF TONIGHT
S WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 9 SECONDS.
WED
W WINDS 5 KT, BECOMING S 10 KT IN THE AFTERNOON. SEAS 2 TO
3 FT, SUBSIDING TO 1 TO 2 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS.
WED NIGHT
S WINDS 10 KT. SEAS 1 TO 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND S 1 FOOT AT 2 SECONDS.
THU
W WINDS 5 KT, BECOMING SE IN THE AFTERNOON. SEAS 1 TO
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
7 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SAT
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
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 20 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ374-171815-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
106 AM EDT WED SEP 17 2025
REST OF TONIGHT
S WINDS 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 9 SECONDS.
WED
SW WINDS 5 KT, BECOMING S 5 TO 10 K IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS.
WED NIGHT
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 E IN THE AFTERNOON. SEAS 2 TO
3 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.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS.
FRI NIGHT
E WINDS 10 KT. SEAS 2 TO 3 FT.
SAT
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS AND TSTMS.
SUN
NE WINDS 20 KT. SEAS 5 TO 6 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 TO 6 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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