451
FZUS52 KCHS 210939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
439 AM EST FRI NOV 21 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
AMZ300-212200-
439 AM EST FRI NOV 21 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
DRY HIGH PRESSURE IS EXPECTED TO PREVAIL ACROSS THE AREA THROUGH
THE REST OF THE WEEK. A COLD FRONT IS FORECAST TO SWEEP ACROSS
THE REGION SATURDAY NIGHT, FOLLOWED BY MORE HIGH PRESSURE EARLY
NEXT WEEK.
AMZ330-212200-
CHARLESTON HARBOR-
439 AM EST FRI NOV 21 2025
TODAY
W WINDS 5 KT, BECOMING SW THIS AFTERNOON. AREAS OF DENSE
FOG EARLY THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT.
SAT
SW WINDS 10 KT.
SAT NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SUN
NE WINDS 10 KT.
SUN NIGHT
NE WINDS 5 TO 10 KT.
MON
NE WINDS 5 TO 10 KT.
MON NIGHT
E WINDS 5 TO 10 KT.
TUE
S WINDS 5 TO 10 KT.
TUE NIGHT
S WINDS 5 KT. A SLIGHT CHANCE OF SHOWERS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 62 DEGREES.
AMZ350-212200-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
439 AM EST FRI NOV 21 2025
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 5 SECONDS. PATCHY DENSE FOG EARLY THIS MORNING
WITH VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 4 SECONDS.
SAT NIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND N 1 FOOT AT
2 SECONDS.
SUN
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT
AT 3 SECONDS AND S 2 FT AT 5 SECONDS.
SUN NIGHT
NE WINDS 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 5 SECONDS AND S 1 FOOT AT 5 SECONDS.
MON
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS.
TUE
S WINDS 10 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF SHOWERS.
TUE NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE
OF SHOWERS.
AMZ352-212200-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
439 AM EST FRI NOV 21 2025
TODAY
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 1 FOOT
AT 2 SECONDS AND E 1 FOOT AT 5 SECONDS. AREAS OF DENSE FOG EARLY
THIS MORNING. PATCHY FOG LATE THIS MORNING AND EARLY AFTERNOON.
VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM LATE THIS MORNING.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E
1 FOOT AT 5 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND E 1 FOOT AT 5 SECONDS.
SAT NIGHT
SW WINDS 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND NW 1 FOOT AT
2 SECONDS.
SUN
NE WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: NE 2 FT AT
6 SECONDS AND N 1 FOOT AT 2 SECONDS.
SUN NIGHT
NE WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: NE 2 FT AT
4 SECONDS AND S 1 FOOT AT 4 SECONDS.
MON
NE WINDS 10 KT. SEAS 2 TO 3 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
TUE
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
AMZ354-212200-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
439 AM EST FRI NOV 21 2025
TODAY
SW WINDS 5 TO 10 KT, BECOMING S LATE. SEAS 1 FOOT OR
LESS, THEN AROUND 2 FT THIS AFTERNOON. WAVE DETAIL: E 1 FOOT AT
6 SECONDS, BECOMING S 1 FOOT AT 2 SECONDS AND E 1 FOOT AT
6 SECONDS. WIDESPREAD DENSE FOG EARLY THIS MORNING. AREAS OF FOG
LATE THIS MORNING. VSBY 1 NM OR LESS THIS MORNING.
TONIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
3 SECONDS AND E 1 FOOT AT 6 SECONDS.
SAT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND E 1 FOOT AT 5 SECONDS.
SAT NIGHT
SW WINDS 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND NE 1 FOOT AT
5 SECONDS.
SUN
N WINDS 10 KT, BECOMING NE IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: N 2 FT AT 3 SECONDS AND S 1 FOOT AT 4 SECONDS.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: NE
2 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
MON
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
TUE
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
TUE NIGHT
S WINDS 10 KT. SEAS 2 TO 3 FT.
AMZ374-212200-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
439 AM EST FRI NOV 21 2025
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS AND E 1 FOOT AT 13 SECONDS. AREAS OF
DENSE FOG THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS
TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND E 2 FT AT 7 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT, BECOMING W WITH GUSTS TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS
AND E 1 FOOT AT 7 SECONDS.
SUN
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT
AT 3 SECONDS AND NE 2 FT AT 7 SECONDS.
SUN NIGHT
NE WINDS 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS.
MON
NE WINDS 10 TO 15 KT. SEAS 3 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT. A SLIGHT CHANCE OF
SHOWERS.
TUE
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
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