305
FZUS52 KCHS 230939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 AM EDT WED SEP 23 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-232300-
539 AM EDT WED SEP 23 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A COLD FRONT WILL PUSH THROUGH THE AREA LATE TONIGHT INTO
WEDNESDAY. HIGH PRESSURE WILL PREVAIL THEREAFTER.
AMZ340-232300-
CHARLESTON HARBOR-
539 AM EDT WED SEP 23 2026
TODAY
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A SLIGHT CHANCE
OF SHOWERS EARLY THIS MORNING. A SLIGHT CHANCE OF SHOWERS AND
TSTMS THIS AFTERNOON.
TONIGHT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS IN THE EVENING.
THU
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
A CHANCE OF SHOWERS AND TSTMS, MAINLY IN THE MORNING.
THU NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
FRI
N WINDS 10 TO 15 KT.
FRI NIGHT
N WINDS 5 TO 10 KT.
SAT
N WINDS 10 KT.
SAT NIGHT
N WINDS 5 KT.
SUN
NW WINDS 5 KT.
SUN NIGHT
SW WINDS 5 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 84 DEGREES.
AMZ360-232300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
539 AM EDT WED SEP 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
TODAY
NE WINDS 20 TO 25 KT. SEAS 4 TO 5 FT, BUILDING TO 4 TO
6 FT THIS AFTERNOON. WAVE DETAIL: NE 5 FT AT 5 SECONDS, BECOMING
NE 6 FT AT 6 SECONDS. A SLIGHT CHANCE OF TSTMS. A CHANCE OF
SHOWERS, MAINLY THIS MORNING.
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO 6 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT AT 6 SECONDS, BECOMING
NE 7 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE
EVENING, THEN A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
THU
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. WAVE DETAIL: NE 8 FT
AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, BUILDING TO
7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, DIMINISHING TO
15 TO 20 KT IN THE AFTERNOON. SEAS 6 TO 8 FT. WAVE DETAIL: NE
8 FT AT 9 SECONDS.
FRI NIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 6 FT,
SUBSIDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT AT
11 SECONDS, BECOMING NE 5 FT AT 12 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-232300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT WED SEP 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
TODAY
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT LATE.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT THIS AFTERNOON. WAVE
DETAIL: NE 4 FT AT 5 SECONDS, BECOMING NE 5 FT AT 6 SECONDS. A
SLIGHT CHANCE OF TSTMS. A CHANCE OF SHOWERS EARLY THIS MORNING,
THEN A SLIGHT CHANCE OF SHOWERS LATE THIS MORNING.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 7 FT AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
THU
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: NE 7 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS IN THE
AFTERNOON.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. WAVE DETAIL: NE
8 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE
EVENING.
FRI
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 6 TO 8 FT, SUBSIDING TO 5 TO 7 FT IN THE
AFTERNOON. WAVE DETAIL: NE 7 FT AT 9 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO
6 FT, SUBSIDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT
AT 9 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SAT NIGHT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-232300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT WED SEP 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING
TODAY
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT LATE.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT THIS AFTERNOON. WAVE
DETAIL: NE 4 FT AT 5 SECONDS, BECOMING NE 5 FT AT 5 SECONDS.
SHOWERS LIKELY THIS MORNING. A CHANCE OF TSTMS. A CHANCE OF
SHOWERS THIS AFTERNOON.
TONIGHT
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT.
WAVE DETAIL: NE 6 FT AT 6 SECONDS, BECOMING NE 7 FT AT 7 SECONDS.
A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING, THEN A
CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
THU
N WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT IN THE
AFTERNOON. SEAS 6 TO 7 FT, SUBSIDING TO 5 TO 7 FT IN THE
AFTERNOON. WAVE DETAIL: NE 7 FT AT 7 SECONDS. A SLIGHT CHANCE OF
TSTMS. A SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN A CHANCE
OF SHOWERS IN THE AFTERNOON.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. WAVE DETAIL: NE
8 FT AT 7 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
TSTMS IN THE EVENING.
FRI
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 6 TO 8 FT, SUBSIDING TO 5 TO 7 FT IN THE
AFTERNOON. WAVE DETAIL: NE 8 FT AT 9 SECONDS, BECOMING NE 7 FT AT
9 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 5 TO
6 FT, SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT
AT 9 SECONDS, BECOMING NE 5 FT AT 10 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-232300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
539 AM EDT WED SEP 23 2026
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY
MORNING...
TODAY
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT, BUILDING TO 6 TO
7 FT THIS AFTERNOON. WAVE DETAIL: NE 6 FT AT 6 SECONDS, BECOMING
NE 7 FT AT 6 SECONDS. A CHANCE OF TSTMS. SHOWERS, MAINLY THIS
MORNING.
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT, BUILDING TO 8 TO
10 FT AFTER MIDNIGHT. WAVE DETAIL: NE 9 FT AT 7 SECONDS, BECOMING
NE 10 FT AT 8 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. WAVE DETAIL: NE
11 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
12 FT. WAVE DETAIL: NE 12 FT AT 9 SECONDS. SHOWERS LIKELY WITH A
CHANCE OF TSTMS IN THE EVENING, THEN A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
FRI
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 10 SECONDS, BECOMING NE 10 FT AT 9 SECONDS.
FRI NIGHT
N WINDS 15 TO 20 KT. SEAS 6 TO 8 FT, SUBSIDING TO
5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT 12 SECONDS,
BECOMING NE 6 FT AT 13 SECONDS.
SAT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
N WINDS 10 KT. SEAS 4 TO 5 FT.
SUN
NW WINDS 5 TO 10 KT. SEAS 3 FT.
SUN NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-232300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT WED SEP 23 2026
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY
MORNING...
TODAY
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT THIS
AFTERNOON. SEAS 4 TO 5 FT, BUILDING TO 5 TO 7 FT THIS AFTERNOON.
WAVE DETAIL: NE 5 FT AT 5 SECONDS, BECOMING NE 7 FT AT 6 SECONDS.
A CHANCE OF TSTMS. SHOWERS, MAINLY THIS MORNING.
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, BUILDING TO 8 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT 7 SECONDS, BECOMING
NE 9 FT AT 7 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
THU
N WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. WAVE DETAIL: NE
10 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT. WAVE DETAIL: NE 11 FT AT 8 SECONDS. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS, MAINLY IN THE EVENING.
FRI
N WINDS 20 TO 25 KT. GUSTS TO 35 KT IN THE MORNING. SEAS
8 TO 10 FT, SUBSIDING TO 7 TO 9 FT IN THE AFTERNOON. WAVE DETAIL:
NE 10 FT AT 9 SECONDS, BECOMING NE 9 FT AT 9 SECONDS.
FRI NIGHT
N WINDS 15 TO 20 KT. SEAS 6 TO 8 FT, SUBSIDING TO
5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT 9 SECONDS,
BECOMING NE 6 FT AT 9 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
SUN
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-232300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT WED SEP 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY
MORNING...
TODAY
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT LATE.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT THIS AFTERNOON. WAVE
DETAIL: NE 4 FT AT 5 SECONDS, BECOMING NE 6 FT AT 6 SECONDS. A
CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY THIS MORNING.
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, BUILDING TO 7 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: NE 8 FT AT 7 SECONDS. A CHANCE
OF SHOWERS AND TSTMS.
THU
N WINDS 25 TO 30 KT. SEAS 7 TO 9 FT, BUILDING TO 8 TO
10 FT IN THE AFTERNOON. WAVE DETAIL: NE 9 FT AT 7 SECONDS,
BECOMING NE 9 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT. WAVE DETAIL: NE 11 FT AT 8 SECONDS. A SLIGHT CHANCE OF
TSTMS. A CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
N WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 10 FT, SUBSIDING TO 7 TO 9 FT IN THE
AFTERNOON. WAVE DETAIL: NE 10 FT AT 9 SECONDS, BECOMING NE 9 FT
AT 10 SECONDS.
FRI NIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 6 TO 8 FT.
WAVE DETAIL: NE 8 FT AT 10 SECONDS.
SAT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
SUN
NW WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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