506
FZUS52 KCHS 181119
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
719 AM EDT WED MAR 18 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
AMZ300-190100-
719 AM EDT WED MAR 18 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL PREVAIL THROUGH THE WEEKEND. A COLD FRONT MAY
DROP THROUGH THE AREA EARLY NEXT WEEK.
AMZ330-190100-
CHARLESTON HARBOR-
719 AM EDT WED MAR 18 2026
TODAY
NE WINDS 5 TO 10 KT.
TONIGHT
NE WINDS 5 KT.
THU
NE WINDS 5 TO 10 KT.
THU NIGHT
E WINDS 5 KT IN THE EVENING, BECOMING LIGHT AND
VARIABLE.
FRI
VARIABLE WINDS 5 KT.
FRI NIGHT
S WINDS 5 KT.
SAT
SW WINDS 5 TO 10 KT.
SAT NIGHT
SW WINDS 5 TO 10 KT.
SUN
SW WINDS 5 TO 10 KT.
SUN NIGHT
SW WINDS 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 60 DEGREES.
AMZ350-190100-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
719 AM EDT WED MAR 18 2026
TODAY
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE
3 FT AT 4 SECONDS AND SE 3 FT AT 9 SECONDS.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING TO
3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND
SE 3 FT AT 9 SECONDS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: E 4 FT AT 9 SECONDS.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS 3 TO
4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SW WINDS 20 TO 25 KT. SEAS 4 TO 5 FT.
AMZ352-190100-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
719 AM EDT WED MAR 18 2026
TODAY
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N
3 FT AT 4 SECONDS AND SE 3 FT AT 9 SECONDS.
TONIGHT
NE WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND
NE 2 FT AT 5 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 9 SECONDS AND NE 3 FT AT 5 SECONDS.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI
N WINDS 5 KT, BECOMING E IN THE AFTERNOON. SEAS 3 TO 4 FT.
WAVE DETAIL: E 3 FT AT 9 SECONDS.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 3 FT. WAVE DETAIL: E 3 FT
AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
AMZ354-190100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
719 AM EDT WED MAR 18 2026
TODAY
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE
3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT
AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS 3 TO
4 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SW WINDS 10 TO 15 KT. SEAS 3 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 FT.
AMZ374-190100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
719 AM EDT WED MAR 18 2026
TODAY
N WINDS 15 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT
THIS AFTERNOON. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E 3 FT AT
9 SECONDS, BECOMING E 4 FT AT 9 SECONDS AND N 3 FT AT 4 SECONDS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO
5 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND SE 4 FT AT 9 SECONDS.
THU
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 5 FT
AT 6 SECONDS AND SE 4 FT AT 9 SECONDS.
THU NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS
AND E 4 FT AT 9 SECONDS.
FRI
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 4 FT AT
9 SECONDS.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
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