519
FZUS52 KCHS 182139
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 PM 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
AMZ300-191100-
539 PM 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.
AMZ330-191100-
CHARLESTON HARBOR-
539 PM EDT WED MAR 18 2026
TONIGHT
NE WINDS 5 TO 10 KT.
THU
N WINDS 10 KT, BECOMING E IN THE AFTERNOON.
THU NIGHT
E WINDS 5 TO 10 KT IN THE EVENING, BECOMING LIGHT
AND VARIABLE.
FRI
VARIABLE WINDS 5 KT.
FRI NIGHT
S WINDS 5 KT.
SAT
SW WINDS 10 KT.
SAT NIGHT
SW WINDS 5 TO 10 KT.
SUN
SW WINDS 5 TO 10 KT.
SUN NIGHT
SW WINDS 10 KT.
MON
SW WINDS 10 TO 15 KT.
MON NIGHT
NE WINDS 10 TO 15 KT. A CHANCE OF SHOWERS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 60 DEGREES.
AMZ350-191100-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
539 PM EDT WED MAR 18 2026
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: SE
4 FT AT 9 SECONDS AND NE 3 FT AT 5 SECONDS.
THU
N WINDS 15 TO 20 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND
E 4 FT AT 9 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT, SUBSIDING TO
3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 9 SECONDS.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW 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. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND E 3 FT AT 10 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 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.
MON
SW WINDS 20 TO 25 KT. SEAS 4 TO 5 FT.
MON NIGHT
NE WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. A CHANCE OF
SHOWERS.
AMZ352-191100-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 PM EDT WED MAR 18 2026
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT, BUILDING TO 4 TO 5 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 4 TO 5 FT.
WAVE DETAIL: NE 4 FT AT 6 SECONDS AND 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 KT, BECOMING E IN THE AFTERNOON. SEAS 3 TO 4 FT.
WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW 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. WAVE DETAIL: E 4 FT
AT 10 SECONDS AND SW 2 FT AT 3 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 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.
MON
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS 25 TO 30 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS.
AMZ354-191100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
539 PM EDT WED MAR 18 2026
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING N
15 TO 20 KT LATE. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SE 3 FT AT
9 SECONDS, BECOMING NE 3 FT AT 5 SECONDS AND SE 3 FT AT
9 SECONDS.
THU
N WINDS 15 TO 20 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 6 SECONDS AND
E 4 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 NE IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
FRI NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS.
SAT
SW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT
10 SECONDS AND SW 1 FOOT AT 3 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 FT.
MON
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE
OF SHOWERS.
AMZ374-191100-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
539 PM EDT WED MAR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 5 FT AT 5 SECONDS AND SE 4 FT AT 9 SECONDS.
THU
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 7 FT.
WAVE DETAIL: NE 6 FT AT 7 SECONDS AND E 6 FT AT 9 SECONDS.
THU NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 5 TO 6 FT, SUBSIDING TO 4 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: E 6 FT AT 8 SECONDS, BECOMING E 5 FT AT
9 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT
AT 9 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
4 TO 5 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS.
SAT
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT
AT 10 SECONDS AND SW 2 FT AT 3 SECONDS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 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.
MON
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
MON NIGHT
SE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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