019
FZUS52 KCHS 171345
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
944 AM EDT TUE MAR 17 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
AMZ300-180300-
944 AM EDT TUE MAR 17 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL PREVAIL THROUGH THE WEEKEND.
AMZ330-180300-
CHARLESTON HARBOR-
944 AM EDT TUE MAR 17 2026
REST OF TODAY
NW WINDS 10 KT.
TONIGHT
NW WINDS 5 TO 10 KT.
WED
NE WINDS 5 TO 10 KT.
WED NIGHT
N WINDS 5 KT.
THU
NE WINDS 5 KT.
THU NIGHT
VARIABLE WINDS 5 KT.
FRI
N WINDS 5 KT.
FRI NIGHT
S WINDS 5 KT.
SAT
SW WINDS 5 TO 10 KT.
SAT NIGHT
SW WINDS 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 60 DEGREES.
AMZ350-180300-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
944 AM EDT TUE MAR 17 2026
REST OF TODAY
NW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING
TO 3 TO 4 FT THIS AFTERNOON. WAVE DETAIL: NW 4 FT AT 5 SECONDS
AND SE 3 FT AT 8 SECONDS, BECOMING NW 3 FT AT 5 SECONDS AND SE
3 FT AT 8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: NE 4 FT AT 6 SECONDS AND W 1 FOOT AT 4 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
4 FT AT 8 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT
AT 8 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 FT.
AMZ352-180300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
944 AM EDT TUE MAR 17 2026
REST OF TODAY
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
THIS AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT THIS
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
TONIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW
2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT
AT 6 SECONDS AND NW 2 FT AT 3 SECONDS.
WED NIGHT
NE WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS.
THU
N WINDS 10 TO 15 KT, BECOMING NE 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS.
THU NIGHT
E WINDS 5 KT, BECOMING N AFTER MIDNIGHT. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 3 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
AMZ354-180300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
944 AM EDT TUE MAR 17 2026
REST OF TODAY
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
THIS AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT THIS
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
TONIGHT
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND NW 2 FT AT 3 SECONDS.
WED
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT
IN THE AFTERNOON. WAVE DETAIL: N 3 FT AT 6 SECONDS, BECOMING NE
3 FT AT 7 SECONDS.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
NE 4 FT AT 7 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT
AT 7 SECONDS.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 3 FT.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
AMZ374-180300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
944 AM EDT TUE MAR 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF TODAY
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT,
DIMINISHING TO 10 TO 15 KT WITH GUSTS TO 20 KT THIS AFTERNOON.
SEAS 5 TO 6 FT, SUBSIDING TO 4 TO 5 FT THIS AFTERNOON. WAVE
DETAIL: NW 6 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS, BECOMING
NW 5 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: NW 3 FT AT 5 SECONDS AND E 3 FT AT 8 SECONDS.
WED
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT
IN THE AFTERNOON. WAVE DETAIL: E 4 FT AT 8 SECONDS AND N 3 FT AT
4 SECONDS, BECOMING N 4 FT AT 7 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO
5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS.
THU
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 8 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
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