355
FZUS52 KCHS 100939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 AM EDT SUN MAY 10 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-102300-
539 AM EDT SUN MAY 10 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A STATIONARY FRONT WILL TRY TO SLOWLY LIFT NORTH THIS WEEKEND. A
COLD FRONT WILL MOVE THROUGH ON MONDAY, BRINGING NEAR GALE
CONDITIONS THAT SHOULD LAST INTO TUESDAY. CONDITIONS IMPROVE
LATER TUESDAY INTO WEDNESDAY AS HIGH PRESSURE QUICKLY PASSES TO
OUR NORTH.
AMZ340-102300-
CHARLESTON HARBOR-
539 AM EDT SUN MAY 10 2026
TODAY
SW WINDS 5 TO 10 KT, BECOMING S LATE. RAIN LIKELY EARLY
THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS LATE THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT.
MON
SW WINDS 5 KT, BECOMING S IN THE AFTERNOON. A SLIGHT
CHANCE OF SHOWERS AND TSTMS IN THE MORNING, THEN SHOWERS LIKELY
WITH A CHANCE OF TSTMS IN THE AFTERNOON.
MON NIGHT
NW WINDS 5 KT, BECOMING N 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. A CHANCE OF TSTMS IN THE EVENING. SHOWERS
LIKELY.
TUE
NE WINDS 15 KT WITH GUSTS TO 20 KT. A CHANCE OF SHOWERS,
MAINLY IN THE MORNING.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING
TO 5 KT AFTER MIDNIGHT.
WED
E WINDS 5 TO 10 KT.
WED NIGHT
S WINDS 5 TO 10 KT. A SLIGHT CHANCE OF SHOWERS.
THU
W WINDS 5 TO 10 KT.
THU NIGHT
NW WINDS 5 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
AMZ360-102300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
539 AM EDT SUN MAY 10 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: E 2 FT AT 8 SECONDS AND S 1 FOOT AT 4 SECONDS. RAIN
LIKELY EARLY THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS LATE
THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SE 2 FT AT 13 SECONDS.
MON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
5 SECONDS AND SE 2 FT AT 12 SECONDS. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON.
MON NIGHT
W WINDS 5 TO 10 KT, BECOMING NE 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. SEAS 2 FT, BUILDING TO 3 TO 4 FT
AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND E 1 FOOT AT
12 SECONDS, BECOMING NE 3 FT AT 4 SECONDS AND S 2 FT AT
5 SECONDS. SHOWERS LIKELY. A CHANCE OF TSTMS, MAINLY IN THE
EVENING.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO 6 FT.
WAVE DETAIL: NE 6 FT AT 6 SECONDS AND SE 1 FOOT AT 12 SECONDS. A
CHANCE OF SHOWERS, MAINLY IN THE MORNING.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, BECOMING E
10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT
AT 9 SECONDS AND SE 1 FOOT AT 11 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
THU
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-102300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT SUN MAY 10 2026
TODAY
W WINDS 5 KT, BECOMING S LATE. SEAS 2 FT. WAVE DETAIL: E
2 FT AT 8 SECONDS AND S 1 FOOT AT 4 SECONDS. RAIN LIKELY EARLY
THIS MORNING, THEN A CHANCE OF SHOWERS LATE THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 8 SECONDS AND SE 1 FOOT AT 13 SECONDS.
MON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 6 SECONDS AND S 2 FT AT 5 SECONDS. SHOWERS LIKELY. A
CHANCE OF TSTMS, MAINLY IN THE EVENING.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO 5 FT,
BUILDING TO 4 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: NE 5 FT AT
5 SECONDS AND SE 1 FOOT AT 12 SECONDS, BECOMING NE 6 FT AT
6 SECONDS AND E 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS, MAINLY
IN THE MORNING.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, BECOMING E
10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 4 TO
5 FT AFTER MIDNIGHT. WAVE DETAIL: E 5 FT AT 7 SECONDS AND E
1 FOOT AT 12 SECONDS, BECOMING E 5 FT AT 8 SECONDS. A SLIGHT
CHANCE OF SHOWERS IN THE EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
THU
SW WINDS 5 TO 10 KT. SEAS 3 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-102300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT SUN MAY 10 2026
TODAY
NW WINDS 5 KT, BECOMING S THIS AFTERNOON. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS. RAIN LIKELY THIS MORNING, THEN
A SLIGHT CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
MON
SW WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS AND SE 1 FOOT AT 12 SECONDS. A
CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 2 FT AT 6 SECONDS. SHOWERS LIKELY. A CHANCE OF
TSTMS, MAINLY IN THE EVENING.
TUE
NE WINDS 20 TO 25 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND E
1 FOOT AT 12 SECONDS, BECOMING NE 5 FT AT 6 SECONDS AND E 1 FOOT
AT 12 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, BECOMING E
10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT
AT 7 SECONDS AND E 1 FOOT AT 12 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
THU
SW WINDS 5 TO 10 KT. SEAS 3 FT.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-102300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
539 AM EDT SUN MAY 10 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS. RAIN
LIKELY EARLY THIS MORNING, THEN A CHANCE OF SHOWERS LATE THIS
MORNING. A SLIGHT CHANCE OF SHOWERS EARLY THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
9 SECONDS AND SE 2 FT AT 12 SECONDS.
MON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
5 SECONDS AND SE 2 FT AT 12 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS IN
THE AFTERNOON.
MON NIGHT
W WINDS 10 TO 15 KT, BECOMING N 20 TO 25 KT WITH
GUSTS TO 30 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND E 2 FT
AT 12 SECONDS, BECOMING N 4 FT AT 4 SECONDS AND W 3 FT AT
5 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 6 TO 8 FT.
WAVE DETAIL: NE 8 FT AT 8 SECONDS AND SE 2 FT AT 11 SECONDS. A
CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT AFTER
MIDNIGHT. SEAS 6 TO 8 FT. WAVE DETAIL: NE 8 FT AT 9 SECONDS. A
SLIGHT CHANCE OF SHOWERS IN THE EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
THU
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-102300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT SUN MAY 10 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 TO 3 FT.
WAVE DETAIL: E 2 FT AT 8 SECONDS AND W 1 FOOT AT 3 SECONDS. RAIN
LIKELY EARLY THIS MORNING, THEN A CHANCE OF SHOWERS LATE THIS
MORNING. A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
9 SECONDS AND SE 2 FT AT 13 SECONDS.
MON
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SE 2 FT AT 12 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS IN
THE AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT, BECOMING N 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. SEAS 2 FT, BUILDING TO 3 TO 4 FT
AFTER MIDNIGHT. WAVE DETAIL: SE 2 FT AT 6 SECONDS AND E 1 FOOT AT
12 SECONDS, BECOMING E 3 FT AT 5 SECONDS AND W 3 FT AT 5 SECONDS.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. SEAS 5 TO 7 FT,
BUILDING TO 6 TO 8 FT IN THE AFTERNOON. WAVE DETAIL: NE 7 FT AT
6 SECONDS AND SE 2 FT AT 12 SECONDS, BECOMING NE 7 FT AT
7 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: NE 7 FT AT 8 SECONDS AND
SE 1 FOOT AT 12 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
WED NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
THU
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-102300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT SUN MAY 10 2026
TODAY
NW WINDS 5 KT, BECOMING S LATE. SEAS 2 FT. WAVE DETAIL:
E 2 FT AT 8 SECONDS AND SE 1 FOOT AT 11 SECONDS. RAIN LIKELY THIS
MORNING, THEN A SLIGHT CHANCE OF SHOWERS AND TSTMS THIS
AFTERNOON.
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
9 SECONDS AND SE 1 FOOT AT 13 SECONDS. A SLIGHT CHANCE OF SHOWERS
IN THE EVENING.
MON
SW WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS
AND SE 1 FOOT AT 12 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS
IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS IN THE
AFTERNOON.
MON NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W
2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS. SHOWERS LIKELY. A
CHANCE OF TSTMS, MAINLY IN THE EVENING.
TUE
NE 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: NE 5 FT AT
5 SECONDS AND W 3 FT AT 3 SECONDS, BECOMING NE 7 FT AT 6 SECONDS
AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS.
TUE NIGHT
NE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: NE 7 FT AT 7 SECONDS AND SE 1 FOOT AT 11 SECONDS,
BECOMING NE 6 FT AT 8 SECONDS AND SE 2 FT AT 11 SECONDS. A CHANCE
OF SHOWERS IN THE EVENING.
WED
E WINDS 5 TO 10 KT. SEAS 4 TO 6 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
THU
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
W WINDS 5 TO 10 KT. SEAS 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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