080
FZUS52 KCHS 200636
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
236 AM EDT TUE OCT 20 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-202045-
236 AM EDT TUE OCT 20 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL EXTEND ACROSS THE REGION THIS WEEK AS A STRONG
NOR'EASTER MEANDERS OFF THE MID-ATLANTIC COAST.
AMZ340-202045-
CHARLESTON HARBOR-
236 AM EDT TUE OCT 20 2026
REST OF TONIGHT
N WINDS 10 KT.
TUE
N WINDS 10 KT, DIMINISHING TO 5 TO 10 KT.
TUE NIGHT
N WINDS 10 KT.
WED
N WINDS 5 TO 10 KT.
WED NIGHT
N WINDS 5 TO 10 KT.
THU
N WINDS 5 TO 10 KT.
THU NIGHT
N WINDS 5 TO 10 KT.
FRI
NE WINDS 10 TO 15 KT.
FRI NIGHT
NE WINDS 10 TO 15 KT.
SAT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 72 DEGREES.
AMZ360-202045-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
236 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
REST OF TONIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE
DETAIL: E 6 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 6 FT,
SUBSIDING TO 3 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: E 6 FT AT
13 SECONDS, BECOMING E 5 FT AT 12 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
5 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: E 5 FT AT
12 SECONDS, BECOMING E 6 FT AT 12 SECONDS.
WED
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 6 FT.
WAVE DETAIL: E 6 FT AT 11 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 11 SECONDS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: E 5 FT AT 12 SECONDS.
THU NIGHT
N WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO
4 FT AFTER MIDNIGHT.
FRI
NE WINDS 20 TO 25 KT. SEAS 4 TO 5 FT.
FRI NIGHT
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT.
SAT NIGHT
NE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT.
AMZ362-202045-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
236 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
REST OF TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: NE 5 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: NE 5 FT AT 13 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: E 5 FT AT 12 SECONDS.
WED
NE WINDS 15 TO 20 KT, BECOMING N 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 6 SECONDS AND
E 5 FT AT 12 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 11 SECONDS AND E 4 FT AT 7 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 11 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.
FRI
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT.
SAT NIGHT
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT.
AMZ364-202045-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
236 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
REST OF TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 5 FT
AT 13 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 5 FT AT 13 SECONDS.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 6 FT.
WAVE DETAIL: NE 6 FT AT 12 SECONDS AND NE 5 FT AT 7 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 11 SECONDS AND E 4 FT AT 7 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT
AT 11 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT.
FRI
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 30 KT. SEAS 8 TO 10 FT. A SLIGHT CHANCE OF
SHOWERS.
SAT NIGHT
NE WINDS 30 KT. SEAS 9 TO 12 FT. A SLIGHT CHANCE OF
SHOWERS.
AMZ380-202045-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
236 AM EDT TUE OCT 20 2026
REST OF TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
7 TO 9 FT. WAVE DETAIL: NE 9 FT AT 13 SECONDS.
TUE
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 7 TO 9 FT, SUBSIDING TO 6 TO 8 FT IN THE
AFTERNOON. WAVE DETAIL: NE 9 FT AT 12 SECONDS, BECOMING NE 8 FT
AT 12 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT, BUILDING TO 6 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 12 SECONDS, BECOMING NE 8 FT AT 12 SECONDS.
WED
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 8 FT.
WAVE DETAIL: NE 8 FT AT 11 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 6 TO
7 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 11 SECONDS, BECOMING NE 7 FT AT 12 SECONDS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: NE 7 FT AT 12 SECONDS.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT. A SLIGHT
CHANCE OF SHOWERS.
SAT
NE WINDS 25 TO 30 KT. SEAS 9 TO 12 FT. A CHANCE OF
SHOWERS.
SAT NIGHT
NE WINDS 25 TO 30 KT. SEAS 10 TO 12 FT. A CHANCE OF
SHOWERS.
AMZ382-202045-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
236 AM EDT TUE OCT 20 2026
REST OF TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
6 TO 8 FT. WAVE DETAIL: NE 8 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 8 FT.
WAVE DETAIL: NE 8 FT AT 13 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT, BUILDING TO 6 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 12 SECONDS.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT.
WAVE DETAIL: NE 7 FT AT 12 SECONDS AND NE 6 FT AT 7 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO
7 FT, SUBSIDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 11 SECONDS, BECOMING NE 6 FT AT 11 SECONDS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO 6 FT.
WAVE DETAIL: NE 6 FT AT 12 SECONDS.
THU NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO
6 FT.
FRI
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. A SLIGHT
CHANCE OF SHOWERS.
SAT
NE WINDS 30 KT. SEAS 9 TO 13 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 30 KT. SEAS 11 TO 13 FT. A CHANCE OF
SHOWERS.
AMZ384-202045-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
236 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
REST OF TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
7 TO 9 FT. WAVE DETAIL: NE 9 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 8 FT.
WAVE DETAIL: NE 8 FT AT 13 SECONDS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT, BUILDING TO 6 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 12 SECONDS.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT.
WAVE DETAIL: NE 7 FT AT 12 SECONDS AND NE 5 FT AT 7 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 7 FT AT 11 SECONDS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: NE 6 FT AT 12 SECONDS.
THU NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO
6 FT.
FRI
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. A SLIGHT
CHANCE OF SHOWERS.
SAT
NE WINDS 30 KT. SEAS 10 TO 13 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 30 KT. SEAS 12 TO 14 FT. A CHANCE OF
SHOWERS.
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