521
FZUS52 KCHS 281835
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
135 PM EST SUN DEC 28 2025
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
AMZ300-290715-
135 PM EST SUN DEC 28 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A WARM FRONT WILL LIFT NORTH LATER TODAY, THEN A COLD FRONT WILL
MOVE THROUGH MONDAY AFTERNOON. HIGH PRESSURE WILL BUILD IN
THROUGH LATE WEEK, THEN A COLD FRONT COULD AFFECT THE AREA NEXT
WEEKEND.
AMZ330-290715-
CHARLESTON HARBOR-
135 PM EST SUN DEC 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
THIS AFTERNOON
E WINDS 5 TO 10 KT.
TONIGHT
SW WINDS 5 TO 10 KT. PATCHY FOG.
MON
SW WINDS 10 TO 15 KT, BECOMING W 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. WAVES 1 TO 2 FT.
TUE
NW WINDS 5 TO 10 KT.
TUE NIGHT
NW WINDS 5 KT.
WED
W WINDS 5 TO 10 KT.
WED NIGHT
W WINDS 10 KT.
THU
W WINDS 10 KT.
THU NIGHT
W WINDS 10 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 57 DEGREES.
AMZ350-290715-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
135 PM EST SUN DEC 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...
THIS AFTERNOON
E WINDS 10 TO 15 WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND SW 1 FOOT AT 4
SECONDS. A SLIGHT CHANCE OF SHOWERS.
TONIGHT
S WINDS 10 TO 15 KT, BECOMING SW 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4
FT AFTER MIDNIGHT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND SW 1 FOOT
AT 3 SECONDS, BECOMING SW 2 FT AT 4 SECONDS AND E 2 FT AT 7
SECONDS. PATCHY FOG.
MON
SW WINDS 15 TO 20 KT, BECOMING W 20 TO 25 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT, BUILDING TO 4 TO 6 FT IN THE
AFTERNOON. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 2 FT AT
5 SECONDS, BECOMING SW 6 FT AT 6 SECONDS AND E 2 FT AT
11 SECONDS.
MON NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 4 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 1 FOOT AT
11 SECONDS, BECOMING NW 5 FT AT 6 SECONDS AND E 1 FOOT AT
11 SECONDS.
TUE
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO
3 FT IN THE AFTERNOON. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E
1 FOOT AT 11 SECONDS, BECOMING N 2 FT AT 4 SECONDS AND E 1 FOOT
AT 11 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 FT.
WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
THU
W WINDS 15 KT. SEAS 2 TO 3 FT.
THU NIGHT
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
AMZ352-290715-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
135 PM EST SUN DEC 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
THIS AFTERNOON
E WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 FT.
WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 3 SECONDS.
PATCHY FOG LATE.
TONIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 6 SECONDS. PATCHY FOG EARLY EVENING,
THEN AREAS OF FOG LATE EVENING.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT,
BUILDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: SW 3 FT AT
4 SECONDS AND E 2 FT AT 8 SECONDS, BECOMING SW 4 FT AT 5 SECONDS
AND E 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
MON NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS
AND E 2 FT AT 11 SECONDS.
TUE
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, SUBSIDING TO 2 FT IN
THE AFTERNOON. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND E 1 FOOT AT
11 SECONDS, BECOMING N 2 FT AT 4 SECONDS AND E 1 FOOT AT
11 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: N
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 FT.
WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
THU
W WINDS 15 KT. SEAS 2 TO 3 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
AMZ354-290715-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
135 PM EST SUN DEC 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
THIS AFTERNOON
VARIABLE WINDS 5 KT, BECOMING SW WINDS 5 TO 10 KT.
SEAS 2 FT. WAVE DETAIL: E 2 FT AT 11 SECONDS. PATCHY FOG LATE.
TONIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E
2 FT AT 11 SECONDS. AREAS OF FOG.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT AT 4 SECONDS
AND E 2 FT AT 12 SECONDS.
TUE
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT IN THE
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND E 2 FT AT
11 SECONDS, BECOMING N 3 FT AT 4 SECONDS AND E 1 FOOT AT
11 SECONDS.
TUE NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: N 2 FT
AT 3 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 FT.
WED NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
THU
W WINDS 15 KT. SEAS 2 TO 3 FT.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 2 FT.
AMZ374-290715-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
135 PM EST SUN DEC 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...
THIS AFTERNOON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E
2 FT AT 11 SECONDS. PATCHY FOG LATE.
TONIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: E 2 FT AT 11 SECONDS AND SW
1 FOOT AT 2 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND E 3 FT AT
8 SECONDS. AREAS OF FOG.
MON
SW WINDS 15 TO 20 KT, BECOMING W 20 TO 25 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND
E 3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
MON NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 6 FT AT 5 SECONDS AND E 3 FT AT 11 SECONDS.
TUE
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: NW 5 FT AT 5 SECONDS AND E 2 FT AT
11 SECONDS, BECOMING NW 4 FT AT 5 SECONDS AND E 2 FT AT
11 SECONDS.
TUE NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
3 FT AT 4 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
WED NIGHT
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
THU
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
THU NIGHT
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
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