228
FZUS52 KCHS 162139
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 PM EDT TUE SEP 16 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
AMZ300-171000-
539 PM EDT TUE SEP 16 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL EXTEND ACROSS THE REGION. LOW PRESSURE WILL
MEANDER NEAR THE NORTH CAROLINA OUTER BANKS THROUGH THE MIDDLE OF
THE WEEK. A COLD FRONT COULD APPROACH FROM THE NORTH EARLY IN THE
WEEKEND.
AMZ330-171000-
CHARLESTON HARBOR-
539 PM EDT TUE SEP 16 2025
TONIGHT
W WINDS 5 KT, BECOMING N AFTER MIDNIGHT.
WED
N WINDS 5 KT, BECOMING S IN THE AFTERNOON.
WED NIGHT
SW WINDS 5 TO 10 KT.
THU
SW WINDS 5 KT.
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. A SLIGHT CHANCE OF SHOWERS AND
TSTMS.
SUN
NE WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND TSTMS.
SUN NIGHT
NE WINDS 10 TO 15 KT. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF TSTMS.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 77 DEGREES.
AMZ350-171000-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
539 PM EDT TUE SEP 16 2025
TONIGHT
W WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS.
WED
N WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.
WED NIGHT
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
SW WINDS 5 TO 10 KT. 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 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 3 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 6 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF 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.
AMZ352-171000-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 PM EDT TUE SEP 16 2025
TONIGHT
SW WINDS 5 KT, BECOMING NW LATE. SEAS 2 TO 3 FT. WAVE
DETAIL: E 3 FT AT 9 SECONDS.
WED
N WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU
SW WINDS 5 TO 10 KT. 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: S 1 FOOT
AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS.
FRI
N WINDS 5 KT, BECOMING E IN THE AFTERNOON. SEAS 2 FT. WAVE
DETAIL: S 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SAT
NE WINDS 10 TO 15 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 AND 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.
AMZ354-171000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
539 PM EDT TUE SEP 16 2025
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS.
WED
NW WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS.
WED 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.
THU
SW WINDS 5 KT, BECOMING S 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.
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 AND TSTMS.
SUN
NE WINDS 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.
AMZ374-171000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
539 PM EDT TUE SEP 16 2025
TONIGHT
E WINDS 5 KT, BECOMING S LATE THIS EVENING, THEN
BECOMING SW LATE. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT
9 SECONDS.
WED
W WINDS 5 KT. 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 AND SW 1 FOOT AT 3 SECONDS.
THU
SW WINDS 5 KT, BECOMING SE 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: E 3 FT
AT 7 SECONDS AND SE 1 FOOT AT 4 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
AND 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 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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