218
FZUS52 KCHS 072139
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 PM EDT TUE APR 7 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
AMZ300-081100-
539 PM EDT TUE APR 7 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WITH STRONG NORTHEAST FLOW AND ELEVATED SEAS WILL
PERSIST ACROSS THE REGION THROUGH THE END OF THE WEEK.
AMZ330-081100-
CHARLESTON HARBOR-
539 PM EDT TUE APR 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH THURSDAY EVENING...
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, INCREASING
TO 20 TO 25 KT WITH GUSTS TO 30 KT LATE. WAVES 2 TO 3 FT.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 2 TO 3 FT.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
THU NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT,
DIMINISHING TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
FRI
NE WINDS 10 KT.
FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT.
SAT
NE WINDS 5 KT.
SAT NIGHT
SE WINDS 5 KT.
SUN
E WINDS 5 TO 10 KT.
SUN NIGHT
SE WINDS 5 TO 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 67 DEGREES.
AMZ350-081100-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
539 PM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...GALE WARNING IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, INCREASING
TO 30 TO 35 KT. SEAS 5 TO 7 FT, BUILDING TO 7 TO 9 FT AFTER
MIDNIGHT. WAVE DETAIL: E 7 FT AT 8 SECONDS, BECOMING E 9 FT AT
8 SECONDS.
WED
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 9 TO 11 FT,
BUILDING TO 9 TO 12 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT
8 SECONDS, BECOMING E 12 FT AT 9 SECONDS.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
12 FT, SUBSIDING TO 9 TO 11 FT AFTER MIDNIGHT. WAVE DETAIL: E
11 FT AT 10 SECONDS, BECOMING E 10 FT AT 10 SECONDS. A SLIGHT
CHANCE OF SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. WAVE DETAIL: E
10 FT AT 11 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 7 TO 9 FT, SUBSIDING TO 6 TO 8 FT AFTER
MIDNIGHT. WAVE DETAIL: E 9 FT AT 10 SECONDS, BECOMING E 8 FT AT
11 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE EVENING.
FRI
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: E 7 FT AT 11 SECONDS.
FRI NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING NE
5 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 4 TO 5 FT AFTER
MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 5 TO 10 KT. SEAS 3 FT.
SUN NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 FT.
AMZ352-081100-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 PM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...GALE WARNING IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, INCREASING
TO 30 TO 35 KT. SEAS 6 TO 8 FT, BUILDING TO 7 TO 9 FT AFTER
MIDNIGHT. WAVE DETAIL: E 7 FT AT 8 SECONDS, BECOMING E 9 FT AT
8 SECONDS.
WED
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 9 TO 11 FT,
BUILDING TO 9 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT
9 SECONDS, BECOMING E 12 FT AT 9 SECONDS.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 10 TO
13 FT, SUBSIDING TO 9 TO 12 FT AFTER MIDNIGHT. WAVE DETAIL: E
12 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT, SUBSIDING TO 8 TO
10 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT 10 SECONDS,
BECOMING E 10 FT AT 10 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 8 TO
10 FT, SUBSIDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: E 9 FT
AT 10 SECONDS, BECOMING E 8 FT AT 10 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING.
FRI
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: E 7 FT AT
11 SECONDS.
FRI NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING NE
5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 4 TO 5 FT
AFTER MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 5 TO 10 KT. SEAS 3 FT.
SUN NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
AMZ354-081100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
539 PM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT
...GALE WARNING IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, BUILDING TO 8 TO
10 FT AFTER MIDNIGHT. WAVE DETAIL: E 8 FT AT 8 SECONDS, BECOMING
E 9 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS EARLY THIS
EVENING. A SLIGHT CHANCE OF SHOWERS LATE.
WED
NE WINDS 30 TO 35 KT. SEAS 9 TO 11 FT, BUILDING TO 9 TO
12 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT 9 SECONDS,
BECOMING E 12 FT AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 10 TO
13 FT, SUBSIDING TO 9 TO 13 FT AFTER MIDNIGHT. WAVE DETAIL: E
13 FT AT 10 SECONDS, BECOMING E 12 FT AT 11 SECONDS. A CHANCE OF
SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. WAVE DETAIL: E
11 FT AT 11 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 8 TO
10 FT, SUBSIDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: E
10 FT AT 11 SECONDS, BECOMING E 9 FT AT 11 SECONDS. A SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
FRI
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 8 FT,
SUBSIDING TO 6 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: E 8 FT AT
11 SECONDS, BECOMING E 7 FT AT 11 SECONDS.
FRI NIGHT
E WINDS 10 TO 15 KT, BECOMING NE 5 TO 10 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT.
SAT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
E WINDS 10 KT. SEAS 3 TO 4 FT.
AMZ374-081100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
539 PM EDT TUE APR 7 2026
..GALE WARNING IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
11 FT, BUILDING TO 9 TO 13 FT AFTER MIDNIGHT. WAVE DETAIL: NE
11 FT AT 8 SECONDS, BECOMING E 12 FT AT 8 SECONDS. A SLIGHT
CHANCE OF SHOWERS UNTIL EARLY MORNING, THEN A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS LATE.
WED
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 11 TO
15 FT, BUILDING TO 13 TO 16 FT IN THE AFTERNOON. WAVE DETAIL: NE
15 FT AT 9 SECONDS, BECOMING NE 16 FT AT 10 SECONDS. A SLIGHT
CHANCE OF TSTMS. A CHANCE OF SHOWERS, MAINLY IN THE MORNING.
WED NIGHT
NE WINDS 30 TO 35 KT, DIMINISHING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 14 TO 16 FT, SUBSIDING TO 12 TO 15 FT AFTER
MIDNIGHT. WAVE DETAIL: NE 16 FT AT 10 SECONDS, BECOMING E 15 FT
AT 11 SECONDS. A CHANCE OF SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 12 TO 13 FT, SUBSIDING TO 11 TO
13 FT IN THE AFTERNOON. WAVE DETAIL: E 13 FT AT 11 SECONDS. A
CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 10 TO 12 FT, SUBSIDING TO 9 TO 11 FT AFTER
MIDNIGHT. WAVE DETAIL: E 12 FT AT 11 SECONDS, BECOMING E 11 FT AT
11 SECONDS. A CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 8 TO 10 FT,
SUBSIDING TO 7 TO 9 FT IN THE AFTERNOON. WAVE DETAIL: E 10 FT AT
11 SECONDS, BECOMING E 9 FT AT 11 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE MORNING.
FRI NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT,
SUBSIDING TO 6 TO 7 FT AFTER MIDNIGHT.
SAT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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