875
FZUS52 KCHS 230622
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
222 AM EDT FRI OCT 23 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-232030-
222 AM EDT FRI OCT 23 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
STRONG HIGH PRESSURE WILL EXTEND ACROSS THE WATERS THROUGH EARLY
NEXT WEEK. AN EXTENDED PERIOD OF DANGEROUS MARINE CONDITIONS IS
BECOMING INCREASINGLY LIKELY BEGINNING TONIGHT AND CONTINUING
THROUGH THE EARLY NEXT WEEK NEAR GALE-FORCE WINDS AND HAZARDOUS
SEAS.
AMZ340-232030-
CHARLESTON HARBOR-
222 AM EDT FRI OCT 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
SUNDAY NIGHT...
TODAY
N WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH GUSTS
TO 20 KT THIS AFTERNOON.
TONIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. WAVES BUILDING 1 TO 2 FT.
SAT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, INCREASING TO 20
TO 25 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 1 TO 2 FT,
BUILDING TO 2 TO 3 FT.
SAT NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
SUN
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SUN NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, DIMINISHING
TO 15 TO 20 KT WITH GUSTS TO 25 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT,
SUBSIDING TO 1 TO 2 FT.
MON
NE WINDS 15 KT.
MON NIGHT
NE WINDS 10 TO 15 KT.
TUE
NE WINDS 10 TO 15 KT.
TUE NIGHT
NE WINDS 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 70 DEGREES.
AMZ360-232030-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
222 AM EDT FRI OCT 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SUNDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4
FT AT 5 SECONDS AND E 4 FT AT 12 SECONDS.
TONIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT WITH
GUSTS TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER
MIDNIGHT. WAVE DETAIL: NE 5 FT AT 5 SECONDS AND E 2 FT AT 11
SECONDS, BECOMING NE 7 FT AT 6 SECONDS AND E 2 FT AT 11 SECONDS.
SAT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 6 TO 8 FT,
BUILDING TO 7 TO 9 FT IN THE AFTERNOON. WAVE DETAIL: E 8 FT AT
7 SECONDS AND E 1 FOOT AT 10 SECONDS, BECOMING NE 9 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 8 TO
10 FT. WAVE DETAIL: E 10 FT AT 8 SECONDS.
SUN
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 7 TO 9 FT,
BUILDING TO 8 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: NE 9 FT AT
8 SECONDS, BECOMING NE 10 FT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS.
SUN NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT. WAVE DETAIL: E 10 FT AT 8 SECONDS.
MON
NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
MON NIGHT
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
AMZ362-232030-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
222 AM EDT FRI OCT 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SUNDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 3
FT AT 5 SECONDS AND E 3 FT AT 12 SECONDS, BECOMING NE 4 FT AT 5
SECONDS AND E 2 FT AT 12 SECONDS.
TONIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT WITH
GUSTS TO 30 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT, BUILDING TO 4 TO 6
FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT AT 6 SECONDS AND E 2 FT
AT 12 SECONDS, BECOMING NE 6 FT AT 6 SECONDS AND E 1 FOOT AT 11
SECONDS.
SAT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 5 TO 7 FT,
BUILDING TO 7 TO 9 FT IN THE AFTERNOON. WAVE DETAIL: NE 7 FT AT
7 SECONDS AND E 1 FOOT AT 11 SECONDS, BECOMING NE 9 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SAT NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 8 TO
10 FT. WAVE DETAIL: E 10 FT AT 8 SECONDS.
SUN
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 8 TO 10 FT.
WAVE DETAIL: E 10 FT AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS.
MON
NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
MON NIGHT
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT.
AMZ364-232030-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
222 AM EDT FRI OCT 23 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH LATE SUNDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4
FT AT 6 SECONDS AND NE 4 FT AT 12 SECONDS.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 3 TO
5 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT
AT 6 SECONDS AND NE 2 FT AT 12 SECONDS, BECOMING NE 6 FT AT 6
SECONDS AND NE 2 FT AT 12 SECONDS.
SAT
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT, INCREASING TO 30
TO 35 KT WITH GUSTS TO 40 KT IN THE AFTERNOON. SEAS 5 TO 7 FT,
BUILDING TO 8 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: NE 7 FT AT 7
SECONDS AND NE 2 FT AT 11 SECONDS, BECOMING NE 9 FT AT 7 SECONDS
AND NE 1 FOOT AT 11 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
SAT NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT. WAVE DETAIL: NE 11 FT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING.
SUN
NE WINDS 30 TO 35 KT WITH GUSTS TO 40 KT. SEAS 9 TO 11 FT.
WAVE DETAIL: NE 11 FT AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS IN
THE AFTERNOON.
SUN NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 40 KT,
DIMINISHING TO 25 TO 35 KT AFTER MIDNIGHT. SEAS 9 TO 12 FT. WAVE
DETAIL: NE 12 FT AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
EVENING.
MON
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT.
MON NIGHT
NE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT.
TUE
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
TUE NIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT.
AMZ380-232030-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
222 AM EDT FRI OCT 23 2026
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH LATE MONDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5
FT AT 5 SECONDS AND NE 5 FT AT 12 SECONDS.
TONIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT WITH
GUSTS TO 35 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT, BUILDING TO 7 TO 9
FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT AT 6 SECONDS AND NE 3 FT
AT 11 SECONDS, BECOMING NE 9 FT AT 7 SECONDS AND NE 2 FT AT 11
SECONDS. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
SAT
NE WINDS 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO 11 FT,
BUILDING TO 9 TO 12 FT IN THE AFTERNOON. WAVE DETAIL: NE 10 FT AT
8 SECONDS, BECOMING NE 12 FT AT 8 SECONDS. A SLIGHT CHANCE OF
TSTMS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY IN
THE AFTERNOON.
SAT NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 10 TO
12 FT. WAVE DETAIL: NE 12 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SUN
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT, INCREASING TO 30
TO 35 KT WITH GUSTS TO 40 KT IN THE AFTERNOON. SEAS 10 TO 11 FT,
BUILDING TO 10 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: NE 11 FT AT
9 SECONDS, BECOMING NE 12 FT AT 9 SECONDS. SHOWERS.
SUN NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 11 TO
13 FT. WAVE DETAIL: NE 13 FT AT 9 SECONDS. SHOWERS LIKELY, MAINLY
IN THE EVENING.
MON
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT. SEAS 9 TO 12 FT.
A SLIGHT CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT. SEAS 9 TO
11 FT.
TUE
NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
TUE NIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-232030-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
222 AM EDT FRI OCT 23 2026
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH LATE MONDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE
5 FT AT 6 SECONDS AND NE 5 FT AT 12 SECONDS.
TONIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT WITH
GUSTS TO 35 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, BUILDING TO 6 TO 8
FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT AT 6 SECONDS AND NE 3 FT
AT 11 SECONDS, BECOMING NE 8 FT AT 7 SECONDS AND NE 2 FT AT 11
SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
SAT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 8 TO 10 FT,
BUILDING TO 9 TO 12 FT IN THE AFTERNOON. WAVE DETAIL: NE 10 FT AT
8 SECONDS, BECOMING NE 12 FT AT 8 SECONDS. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
SAT NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 11 TO
14 FT, SUBSIDING TO 11 TO 13 FT AFTER MIDNIGHT. WAVE DETAIL: NE
13 FT AT 9 SECONDS. A SLIGHT CHANCE OF TSTMS IN THE EVENING. A
CHANCE OF SHOWERS.
SUN
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 10 TO 12
FT, BUILDING TO 10 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: NE 12
FT AT 9 SECONDS, BECOMING NE 13 FT AT 9 SECONDS. SHOWERS.
SUN NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 12 TO
14 FT, SUBSIDING TO 11 TO 14 FT AFTER MIDNIGHT. WAVE DETAIL: NE
14 FT AT 9 SECONDS, BECOMING NE 14 FT AT 10 SECONDS. A CHANCE OF
SHOWERS.
MON
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT. SEAS 10 TO 14
FT. A SLIGHT CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT. SEAS 9 TO
12 FT.
TUE
NE WINDS 20 TO 25 KT. SEAS 9 TO 11 FT.
TUE NIGHT
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-232030-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
222 AM EDT FRI OCT 23 2026
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH LATE MONDAY
NIGHT...
TODAY
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE
5 FT AT 6 SECONDS AND E 5 FT AT 12 SECONDS.
TONIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT WITH
GUSTS TO 35 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, BUILDING TO 6 TO 8
FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT AT 6 SECONDS AND NE 3 FT
AT 12 SECONDS, BECOMING NE 8 FT AT 7 SECONDS AND NE 3 FT AT 11
SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
SAT
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 K, INCREASING TO 30
TO 35 KT WITH GUSTS TO 40 KT IN THE AFTERNOON. SEAS 8 TO 10 FT,
BUILDING TO 9 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: NE 10 FT AT
8 SECONDS AND NE 2 FT AT 11 SECONDS, BECOMING NE 12 FT AT 8
SECONDS. A SLIGHT CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
SAT NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 11 TO
14 FT, BUILDING TO 12 TO 14 FT AFTER MIDNIGHT. WAVE DETAIL: NE
14 FT AT 9 SECONDS. A SLIGHT CHANCE OF TSTMS IN THE EVENING. A
CHANCE OF SHOWERS.
SUN
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 11 TO 14
FT, SUBSIDING TO 11 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: NE 13
FT AT 10 SECONDS, BECOMING NE 13 FT AT 9 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 12 TO
15 FT. WAVE DETAIL: NE 15 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 30 KT WITH GUSTS TO 40 KT. SEAS 11 TO 14 FT. A
SLIGHT CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 35 KT. SEAS 10 TO
13 FT.
TUE
NE WINDS 25 TO 30 KT. SEAS 9 TO 12 FT.
TUE NIGHT
NE WINDS 25 TO 30 KT. SEAS 9 TO 12 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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