276
FZUS52 KCHS 170240
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
1040 PM EDT THU APR 16 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-171600-
1040 PM EDT THU APR 16 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
ATLANTIC HIGH PRESSURE WILL PREVAIL THROUGH THE SATURDAY. A
STRONG COLD FRONT WILL PUSH ACROSS THE WATERS SUNDAY BRINGING
INCREASING WINDS AND SEAS.
AMZ340-171600-
CHARLESTON HARBOR-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 10 KT.
FRI
SW WINDS 5 TO 10 KT.
FRI NIGHT
SW WINDS 5 TO 10 KT.
SAT
S WINDS 5 TO 10 KT.
SAT NIGHT
S WINDS 10 KT.
SUN
SW WINDS 10 TO 15 KT. A SLIGHT CHANCE OF SHOWERS AND TSTMS
IN THE AFTERNOON.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
MON
NE WINDS 10 TO 15 KT.
MON NIGHT
NE WINDS 5 KT.
TUE
NE WINDS 5 TO 10 KT.
TUE NIGHT
SE WINDS 5 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
AMZ360-171600-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 5 SECONDS AND E 2 FT AT 9 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 3 TO
4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. A SLIGHT CHANCE OF
TSTMS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS.
MON
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-171600-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 4 SECONDS AND E 3 FT AT 9 SECONDS.
FRI
SW WINDS 10 TO 15 KT, BECOMING S 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E
2 FT AT 9 SECONDS.
FRI NIGHT
S WINDS 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 9 SECONDS AND S 1 FOOT AT 4 SECONDS.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
SW WINDS 10 TO 15 KT, BECOMING W 15 TO 20 KT IN THE
AFTERNOON. SEAS 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE
3 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. A
SLIGHT CHANCE OF SHOWERS.
MON
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 FT.
AMZ364-171600-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
3 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
SW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND S 2 FT AT
5 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: SE 3 FT
AT 9 SECONDS.
SAT
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND S 2 FT AT 5 SECONDS.
SUN NIGHT
N WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. A
SLIGHT CHANCE OF SHOWERS IN THE EVENING.
MON
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
TUE NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
AMZ380-171600-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 3 FT AT 9 SECONDS.
FRI
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND E 2 FT AT 9 SECONDS.
FRI NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: S 2 FT AT
5 SECONDS AND E 2 FT AT 8 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE
2 FT AT 8 SECONDS.
SUN
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
N WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, BUILDING TO 6 TO 8 FT AFTER MIDNIGHT. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
MON
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
TUE NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-171600-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
1040 PM EDT THU APR 16 2026
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 4 FT. WAVE
DETAIL: S 3 FT AT 4 SECONDS AND E 3 FT AT 9 SECONDS.
FRI
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND E 3 FT AT 9 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 2 FT AT 4 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND S 2 FT AT 4 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. A
SLIGHT CHANCE OF TSTMS IN THE EVENING. A SLIGHT CHANCE OF
SHOWERS.
MON
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT.
MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
TUE NIGHT
SE WINDS 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-171600-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1040 PM EDT THU APR 16 2026
OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 4 FT. WAVE
DETAIL: S 3 FT AT 4 SECONDS AND E 3 FT AT 9 SECONDS.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING TO
5 TO 10 KT IN THE AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND S 2 FT AT 4 SECONDS.
SAT
SW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT
8 SECONDS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
SUN NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. SEAS 3 TO
4 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. A SLIGHT CHANCE OF
TSTMS IN THE EVENING. A SLIGHT CHANCE OF SHOWERS.
MON
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 15 TO 20 KT. SEAS 4 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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