560
FZUS52 KCHS 182319
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
719 PM EDT SUN OCT 18 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-191330-
719 PM EDT SUN OCT 18 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
POWERFUL NOR'EASTER MEANDERS OFF THE MID-ATLANTIC COAST. THIS
WILL KEEP HAZARDOUS WINDS AND SEAS IN PLACE FOR THE NEXT SEVERAL
DAYS.
AMZ340-191330-
CHARLESTON HARBOR-
719 PM EDT SUN OCT 18 2026
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT.
MON NIGHT
N WINDS 10 TO 15 KT.
TUE
N WINDS 10 TO 15 KT.
TUE NIGHT
N WINDS 10 KT.
WED
N WINDS 10 KT.
WED NIGHT
N WINDS 5 TO 10 KT.
THU
N WINDS 5 TO 10 KT.
THU NIGHT
NE WINDS 5 KT.
FRI
NE WINDS 10 TO 15 KT.
FRI NIGHT
NE WINDS 10 TO 15 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 74 DEGREES.
AMZ360-191330-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
719 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
TONIGHT
NE WINDS 25 TO 30 KT, BECOMING N 20 TO 25 KT LATE.
SEAS 7 TO 9 FT. WAVE DETAIL: NE 8 FT AT 8 SECONDS.
MON
N WINDS 20 TO 25 KT. SEAS 7 TO 9 FT, SUBSIDING TO 6 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: NE 8 FT AT 12 SECONDS,
BECOMING NE 8 FT AT 13 SECONDS.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: E 7 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 7 FT,
SUBSIDING TO 4 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: NE 6 FT AT
13 SECONDS, BECOMING NE 6 FT AT 12 SECONDS.
TUE NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
6 FT, SUBSIDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT
AT 12 SECONDS.
WED
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: NE 5 FT AT 6 SECONDS AND E 2 FT AT 11 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING TO
3 TO 4 FT AFTER MIDNIGHT.
THU
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 5 TO 7 FT.
AMZ362-191330-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
719 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
TONIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER
MIDNIGHT, THEN DIMINISHING TO 20 TO 25 KT LATE. SEAS 6 TO 8 FT,
BUILDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT
8 SECONDS.
MON
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 6 TO 8 FT. WAVE DETAIL: NE 8 FT AT 9 SECONDS AND
E 1 FOOT AT 12 SECONDS.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 6 FT AT 13 SECONDS AND SE 1 FOOT AT
13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 6 FT,
SUBSIDING TO 4 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: NE 6 FT AT
13 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING NE 6 FT AT
13 SECONDS.
TUE NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: NE 5 FT AT 12 SECONDS.
WED
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 6 SECONDS AND
E 4 FT AT 12 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 5 TO 7 FT.
AMZ364-191330-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
719 PM EDT SUN OCT 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT. WAVE DETAIL: NE
9 FT AT 8 SECONDS AND E 2 FT AT 12 SECONDS.
MON
NE WINDS 20 TO 25 KT, BECOMING N 15 TO 20 KT IN THE
AFTERNOON. SEAS 7 TO 9 FT, SUBSIDING TO 6 TO 8 FT IN THE
AFTERNOON. WAVE DETAIL: NE 8 FT AT 9 SECONDS AND E 2 FT AT
13 SECONDS, BECOMING NE 7 FT AT 9 SECONDS AND E 6 FT AT
13 SECONDS.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: E 6 FT AT 14 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: NE 6 FT AT 13 SECONDS AND E 3 FT AT 14 SECONDS.
TUE NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE
5 FT AT 13 SECONDS AND E 2 FT AT 13 SECONDS.
WED
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT
AT 7 SECONDS AND E 5 FT AT 12 SECONDS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING TO
3 TO 4 FT AFTER MIDNIGHT.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT.
AMZ380-191330-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
719 PM EDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 5 AM EDT MONDAY
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 10 TO 13 FT. WAVE DETAIL:
NE 13 FT AT 12 SECONDS AND NE 11 FT AT 8 SECONDS.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 9 TO 12 FT.
WAVE DETAIL: NE 12 FT AT 13 SECONDS.
MON NIGHT
N WINDS 20 KT WITH GUSTS TO 25 KT. SEAS 9 TO 11 FT,
SUBSIDING TO 8 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: NE 10 FT AT
13 SECONDS, BECOMING 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. WAVE DETAIL: NE 9 FT AT 13 SECONDS.
TUE NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO
8 FT, SUBSIDING TO 6 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT
AT 12 SECONDS, BECOMING NE 6 FT AT 6 SECONDS AND NE 6 FT AT
11 SECONDS.
WED
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT,
SUBSIDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: NE 7 FT AT
11 SECONDS AND NE 6 FT AT 6 SECONDS, BECOMING NE 7 FT AT
12 SECONDS AND NE 5 FT AT 6 SECONDS.
WED NIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO 7 FT,
SUBSIDING TO 5 TO 6 FT AFTER MIDNIGHT.
THU
N WINDS 15 TO 20 KT. SEAS 5 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 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. A SLIGHT
CHANCE OF SHOWERS.
AMZ382-191330-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
719 PM EDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 5 AM EDT MONDAY
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 9 TO 12 FT. WAVE DETAIL: NE
11 FT AT 9 SECONDS.
MON
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 9 TO 11 FT,
SUBSIDING TO 8 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: NE 11 FT
AT 12 SECONDS AND E 2 FT AT 13 SECONDS, BECOMING NE 10 FT AT
13 SECONDS AND E 2 FT AT 13 SECONDS.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 8 TO
10 FT, SUBSIDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE
9 FT AT 13 SECONDS AND E 2 FT AT 13 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 7 TO 9 FT,
SUBSIDING TO 6 TO 8 FT IN THE AFTERNOON. WAVE DETAIL: NE 8 FT AT
13 SECONDS AND E 2 FT AT 9 SECONDS, BECOMING NE 8 FT AT
13 SECONDS AND E 1 FOOT AT 10 SECONDS.
TUE NIGHT
N 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
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT,
SUBSIDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: NE 6 FT AT
7 SECONDS AND NE 3 FT AT 11 SECONDS.
WED NIGHT
N WINDS 15 TO 20 KT. SEAS 5 TO 6 FT, SUBSIDING TO
4 TO 6 FT AFTER MIDNIGHT.
THU
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 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.
AMZ384-191330-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
719 PM EDT SUN OCT 18 2026
..GALE WARNING IN EFFECT UNTIL 5 AM EDT MONDAY
TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
12 FT, BUILDING TO 10 TO 12 FT AFTER MIDNIGHT. WAVE DETAIL: NE
11 FT AT 8 SECONDS AND E 3 FT AT 12 SECONDS, BECOMING NE 11 FT AT
9 SECONDS AND E 4 FT AT 13 SECONDS.
MON
N WINDS 20 TO 25 KT. GUSTS TO 35 KT IN THE MORNING. SEAS
9 TO 12 FT, SUBSIDING TO 9 TO 11 FT IN THE AFTERNOON. WAVE
DETAIL: NE 10 FT AT 10 SECONDS AND E 4 FT AT 13 SECONDS, BECOMING
NE 9 FT AT 12 SECONDS AND E 4 FT AT 14 SECONDS.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 8 TO
10 FT, SUBSIDING TO 8 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE
8 FT AT 13 SECONDS AND E 4 FT AT 14 SECONDS.
TUE
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 7 TO 9 FT,
SUBSIDING TO 7 TO 8 FT IN THE AFTERNOON. WAVE DETAIL: NE 7 FT AT
13 SECONDS AND E 4 FT AT 13 SECONDS.
TUE NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO
8 FT, SUBSIDING TO 6 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT
AT 12 SECONDS AND E 4 FT AT 12 SECONDS, BECOMING NE 6 FT AT
7 SECONDS AND NE 5 FT AT 12 SECONDS.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT,
SUBSIDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: NE 6 FT AT
7 SECONDS AND E 3 FT AT 12 SECONDS, BECOMING NE 6 FT AT 7 SECONDS
AND E 3 FT AT 11 SECONDS.
WED NIGHT
N WINDS 15 TO 20 KT. SEAS 5 TO 6 FT.
THU
N WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU NIGHT
NE WINDS 10 TO 15 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 7 TO 9 FT. A SLIGHT
CHANCE OF SHOWERS.
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