397
FZUS52 KCHS 130940
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
440 AM EST TUE JAN 13 2026
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
AMZ300-132300-
440 AM EST TUE JAN 13 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE BUILDS ACROSS THE AREA THROUGH TODAY, FOLLOWED BY A
COLD FRONT WEDNESDAY NIGHT INTO THURSDAY. CHILLY HIGH PRESSURE
WILL BUILD ACROSS THE REGION BY EARLY NEXT WEEK.
AMZ330-132300-
CHARLESTON HARBOR-
440 AM EST TUE JAN 13 2026
TODAY
N WINDS 5 KT, BECOMING SW THIS AFTERNOON.
TONIGHT
SW WINDS 5 KT.
WED
W WINDS 5 TO 10 KT. A CHANCE OF RAIN.
WED NIGHT
W WINDS 10 KT. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
THU
NW WINDS 10 TO 15 KT.
THU NIGHT
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT AFTER
MIDNIGHT.
FRI
W WINDS 5 TO 10 KT.
FRI NIGHT
SW WINDS 10 KT.
SAT
SW WINDS 10 TO 15 KT.
SAT NIGHT
W WINDS 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 56 DEGREES.
AMZ350-132300-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
440 AM EST TUE JAN 13 2026
TODAY
VARIABLE WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
7 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND W 1 FOOT AT 2 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 3 SECONDS AND E 2 FT AT 8 SECONDS. RAIN LIKELY, MAINLY IN THE
MORNING.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 1 FOOT AT 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
FRI
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SAT
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
SAT NIGHT
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE
OF SHOWERS.
AMZ352-132300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
440 AM EST TUE JAN 13 2026
TODAY
N WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 7 SECONDS.
TONIGHT
SW WINDS 5 KT, BECOMING W AFTER MIDNIGHT. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 7 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 7 SECONDS. RAIN LIKELY, MAINLY IN THE
MORNING.
WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT, BUILDING TO
3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E
2 FT AT 8 SECONDS, BECOMING SW 3 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: W 3 FT
AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
THU NIGHT
NW WINDS 15 TO 20 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT.
WAVE DETAIL: NW 4 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS,
BECOMING NW 3 FT AT 4 SECONDS AND NE 1 FOOT AT 8 SECONDS.
FRI
W WINDS 5 TO 10 KT. SEAS 2 FT.
FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SAT
SW WINDS 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
AMZ354-132300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
440 AM EST TUE JAN 13 2026
TODAY
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 7 SECONDS.
TONIGHT
SW WINDS 5 KT, BECOMING W AFTER MIDNIGHT. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS.
WED
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E
2 FT AT 7 SECONDS. A CHANCE OF RAIN, MAINLY IN THE MORNING.
WED NIGHT
W WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 2 TO 3 FT,
BUILDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: W 3 FT AT
4 SECONDS AND E 1 FOOT AT 8 SECONDS, BECOMING NW 4 FT AT
4 SECONDS AND E 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
IN THE MORNING.
THU NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: NW 4 FT AT 4 SECONDS
AND E 1 FOOT AT 8 SECONDS.
FRI
W WINDS 5 TO 10 KT. SEAS 2 FT.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SAT
SW WINDS 15 KT. SEAS 2 TO 3 FT.
SAT NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
AMZ374-132300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
440 AM EST TUE JAN 13 2026
TODAY
N WINDS 5 TO 10 KT. SEAS 3 FT. WAVE DETAIL: NE 3 FT AT
8 SECONDS.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 8 SECONDS. A CHANCE OF RAIN AFTER MIDNIGHT.
WED
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT
IN THE AFTERNOON. WAVE DETAIL: W 2 FT AT 3 SECONDS AND E 2 FT AT
8 SECONDS, BECOMING W 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
RAIN LIKELY, MAINLY IN THE MORNING.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NW WINDS 20 TO 25 KT. SEAS 4 TO 5 FT, BUILDING TO 4 TO
6 FT IN THE AFTERNOON. WAVE DETAIL: W 4 FT AT 5 SECONDS AND E
1 FOOT AT 8 SECONDS, BECOMING W 5 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 5 TO 6 FT, SUBSIDING TO 4 TO 6 FT AFTER
MIDNIGHT. WAVE DETAIL: NW 6 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS, BECOMING NW 5 FT AT 5 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
NW WINDS 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SAT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SAT NIGHT
W WINDS 20 TO 25 KT. SEAS 4 TO 5 FT.
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