667
FZUS52 KCHS 151821
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
221 PM EDT SUN MAR 15 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
AMZ300-160830-
221 PM EDT SUN MAR 15 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A WARM FRONT WILL LIFT NORTH TODAY, THEN A STRONG COLD FRONT WILL
PUSH OFFSHORE MONDAY AFTERNOON. HIGH PRESSURE WILL THEN BUILD
OVER THE AREA THROUGH MID TO LATE WEEK.
AMZ330-160830-
CHARLESTON HARBOR-
221 PM EDT SUN MAR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND
TSTMS.
TONIGHT
S WINDS 10 TO 15 KT, INCREASING TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS IN THE EVENING.
TUE
NW WINDS 10 TO 15 KT.
TUE NIGHT
NW WINDS 5 TO 10 KT.
WED
NE WINDS 5 TO 10 KT.
WED NIGHT
NE WINDS 5 TO 10 KT.
THU
NE WINDS 5 KT.
THU NIGHT
NE WINDS 5 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 61 DEGREES.
AMZ350-160830-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
221 PM EDT SUN MAR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH TUESDAY MORNING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: SE 4 FT AT 6 SECONDS. A CHANCE OF SHOWERS AND TSTMS
EARLY, THEN A SLIGHT CHANCE OF SHOWERS AND TSTMS LATE.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: SE 5 FT
AT 7 SECONDS, BECOMING SE 6 FT AT 7 SECONDS. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT IN THE
AFTERNOON. SEAS 6 TO 8 FT, BUILDING TO 8 TO 10 FT IN THE
AFTERNOON. WAVE DETAIL: S 8 FT AT 7 SECONDS, BECOMING S 9 FT AT
8 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY IN THE
MORNING.
MON NIGHT
W WINDS 25 TO 30 KT. SEAS 7 TO 9 FT, SUBSIDING TO
6 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: S 9 FT AT 8 SECONDS,
BECOMING W 6 FT AT 6 SECONDS AND S 6 FT AT 8 SECONDS. SHOWERS
LIKELY WITH A CHANCE OF TSTMS IN THE EVENING, THEN A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 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 S
3 FT AT 8 SECONDS, BECOMING NW 3 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WED NIGHT
NE WINDS 10 KT. SEAS 3 TO 4 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ352-160830-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
221 PM EDT SUN MAR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH TUESDAY MORNING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS EARLY, THEN A CHANCE OF SHOWERS AND TSTMS LATE.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS, BECOMING S 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS
AND TSTMS.
MON
S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT, BUILDING TO 6 TO 8 FT IN THE
AFTERNOON. WAVE DETAIL: S 5 FT AT 7 SECONDS, BECOMING S 8 FT AT
7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
NW WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, SUBSIDING TO
5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W
5 FT AT 5 SECONDS, BECOMING NW 5 FT AT 5 SECONDS AND SE 4 FT AT
8 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS IN THE EVENING,
THEN A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
NW WINDS 20 TO 25 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 SE 2 FT AT
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
NW 2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS 10 KT. SEAS 3 TO 4 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ354-160830-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
221 PM EDT SUN MAR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH TUESDAY MORNING...
THIS AFTERNOON
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: SE 3 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS EARLY.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS AND S 3 FT AT 4 SECONDS, BECOMING SE 4 FT AT
6 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
MON
S WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO 6 FT,
BUILDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: S 5 FT AT
6 SECONDS, BECOMING SE 6 FT AT 7 SECONDS. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NW 5 FT AT 4 SECONDS AND SE 5 FT AT 7 SECONDS.
SHOWERS LIKELY WITH A CHANCE OF TSTMS IN THE EVENING, THEN A
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
TUE
NW WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: NW 4 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS, BECOMING NW 3 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.
TUE NIGHT
N WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW
2 FT AT 3 SECONDS AND E 2 FT AT 7 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ374-160830-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
221 PM EDT SUN MAR 15 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH TUESDAY MORNING...
THIS AFTERNOON
S WINDS 10 TO 15 KT. SEAS 4 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS EARLY, THEN A
SLIGHT CHANCE OF SHOWERS AND TSTMS LATE.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. SEAS 4 TO
5 FT, BUILDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SE 5 FT
AT 7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS IN THE
EVENING, THEN A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
MON
S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT IN THE
AFTERNOON. SEAS 6 TO 7 FT, BUILDING TO 7 TO 9 FT IN THE
AFTERNOON. WAVE DETAIL: S 6 FT AT 7 SECONDS, BECOMING S 7 FT AT
7 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON NIGHT
NW WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. WAVE DETAIL:
NW 7 FT AT 6 SECONDS AND SE 6 FT AT 8 SECONDS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
TUE
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, DIMINISHING TO
15 TO 20 KT IN THE AFTERNOON. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: NW 6 FT AT 6 SECONDS AND SE
2 FT AT 8 SECONDS, BECOMING NW 5 FT AT 5 SECONDS AND E 2 FT AT
8 SECONDS.
TUE NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NW
3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
WED
N WINDS 15 KT. SEAS 4 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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