220
FZUS52 KCHS 120550
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
1250 AM EST FRI DEC 12 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
AMZ300-121800-
1250 AM EST FRI DEC 12 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL PREVAIL THROUGH SATURDAY, THEN AN ARCTIC COLD
FRONT WILL SWEEP THROUGH LATE SUNDAY. DRY HIGH PRESSURE WILL THEN
REBUILD INTO THE REGION.
AMZ330-121800-
CHARLESTON HARBOR-
1250 AM EST FRI DEC 12 2025
REST OF TONIGHT
W WINDS 5 KT.
FRI
SW WINDS 5 TO 10 KT.
FRI NIGHT
SW WINDS 5 TO 10 KT.
SAT
SW WINDS 5 KT.
SAT NIGHT
SW WINDS 5 KT.
SUN
W WINDS 10 KT, BECOMING NW WITH GUSTS TO 20 KT IN THE
AFTERNOON. A SLIGHT CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
MON
N WINDS 10 TO 15 KT.
MON NIGHT
N WINDS 5 KT.
TUE
W WINDS 5 KT.
TUE NIGHT
W WINDS 5 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 54 DEGREES.
AMZ350-121800-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
1250 AM EST FRI DEC 12 2025
REST OF TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: W
1 FOOT AT 5 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI
W WINDS 5 KT, BECOMING SW 10 TO 15 KT IN THE AFTERNOON.
SEAS 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING NW 20 TO
25 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. SEAS 2 TO 3 FT,
BUILDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND SE 1 FOOT AT 8 SECONDS, BECOMING NW 3 FT AT
4 SECONDS AND SE 1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS, MAINLY
IN THE MORNING.
SUN NIGHT
N WINDS 25 TO 30 KT. SEAS 4 TO 6 FT, BUILDING TO
5 TO 7 FT AFTER MIDNIGHT.
MON
N WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
MON NIGHT
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
TUE
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
TUE NIGHT
W WINDS 5 KT. SEAS 2 TO 3 FT.
AMZ352-121800-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
1250 AM EST FRI DEC 12 2025
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL:
NW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI
NW WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI NIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SAT NIGHT
SW WINDS 5 KT, INCREASING TO 10 KT AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE
DETAIL: S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS,
BECOMING SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN
W WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT AT
3 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
IN THE MORNING.
SUN NIGHT
N WINDS 25 TO 30 KT. SEAS 4 TO 5 FT, BUILDING TO
4 TO 6 FT AFTER MIDNIGHT.
MON
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
MON NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
TUE
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
TUE NIGHT
W WINDS 5 KT. SEAS 2 TO 3 FT.
AMZ354-121800-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
1250 AM EST FRI DEC 12 2025
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL:
NW 2 FT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI
NW WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 1 FOOT AT 9 SECONDS.
SAT
W WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS 1 TO
2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS, BECOMING S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN
AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS
AND SE 1 FOOT AT 8 SECONDS.
SUN
W WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT AT 3 SECONDS AND
SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING.
SUN NIGHT
N WINDS 25 TO 30 KT. SEAS 4 TO 5 FT, BUILDING TO
5 TO 7 FT AFTER MIDNIGHT.
MON
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
MON NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS 5 KT. SEAS 2 TO 3 FT.
AMZ374-121800-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
1250 AM EST FRI DEC 12 2025
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NW 3 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND E 2 FT AT 9 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND N 1 FOOT AT 3 SECONDS.
SAT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SAT NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN
W WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE 2 FT AT
8 SECONDS, BECOMING W 4 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
A SLIGHT CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
N WINDS 25 TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO
7 TO 9 FT AFTER MIDNIGHT.
MON
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT. A SLIGHT CHANCE OF
SHOWERS.
MON NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
TUE NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page