649
FZUS52 KCHS 312040
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT FRI JUL 31 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-011000-
440 PM EDT FRI JUL 31 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A STATIONARY FRONT WILL LINGER ACROSS SOUTHEAST SOUTH CAROLINA
AND SOUTHEAST GEORGIA THROUGH TONIGHT. A WEAK WARM FRONT MAY LIFT
OVER THE REGION THIS WEEKEND BEFORE BECOMING A BROAD AREA OF LOW
PRESSURE BY EARLY NEXT WEEK. UNSETTLED WEATHER THIS WEEKEND COULD
REMAIN THROUGH THE MIDDLE OF NEXT WEEK.
AMZ340-011000-
CHARLESTON HARBOR-
440 PM EDT FRI JUL 31 2026
TONIGHT
SE WINDS 5 TO 10 KT.
SAT
SE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
TO 20 KT IN THE AFTERNOON. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON.
SAT NIGHT
SE WINDS 10 TO 15 KT, BECOMING S 5 TO 10 KT AFTER
MIDNIGHT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SUN
SW WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. SHOWERS LIKELY. A CHANCE OF TSTMS,
MAINLY IN THE MORNING.
SUN NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS. SHOWERS.
MON
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS IN THE
MORNING, THEN SHOWERS WITH TSTMS LIKELY IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SHOWERS LIKELY. TSTMS
LIKELY, MAINLY IN THE EVENING.
TUE
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
TUE NIGHT
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WED
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 87 DEGREES.
AMZ360-011000-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
440 PM EDT FRI JUL 31 2026
TONIGHT
SE WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
5 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS. A SLIGHT CHANCE OF TSTMS IN THE AFTERNOON.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING, THEN SHOWERS
LIKELY WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
SUN
SW WINDS 15 TO 20 KT, BECOMING S 20 TO 25 KT WITH GUSTS TO
30 KT IN THE AFTERNOON. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT IN
THE AFTERNOON. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS, BECOMING SE 6 FT AT 7 SECONDS. SHOWERS. A CHANCE OF
TSTMS, MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: S 7 FT AT 7 SECONDS AND SE 4 FT AT 8 SECONDS.
A CHANCE OF TSTMS. SHOWERS.
MON
SW WINDS 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 6 FT. WAVE
DETAIL: S 5 FT AT 7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-011000-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
440 PM EDT FRI JUL 31 2026
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS LATE.
SAT
SE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
TO 20 KT IN THE AFTERNOON. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
4 SECONDS AND SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE MORNING.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE EVENING,
THEN SHOWERS LIKELY AFTER MIDNIGHT.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, INCREASING TO
20 TO 25 KT WITH GUSTS TO 30 KT IN THE AFTERNOON. SEAS 3 TO 4 FT,
BUILDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: S 3 FT AT
5 SECONDS AND SE 2 FT AT 9 SECONDS, BECOMING S 5 FT AT 5 SECONDS
AND SE 1 FOOT AT 8 SECONDS. SHOWERS LIKELY. A CHANCE OF TSTMS,
MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 5 TO 6 FT, SUBSIDING TO 4 TO 6 FT AFTER
MIDNIGHT. WAVE DETAIL: S 6 FT AT 7 SECONDS, BECOMING S 5 FT AT
7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 4 FT AT 7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. SHOWERS LIKELY WITH A CHANCE OF
TSTMS.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-011000-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
440 PM EDT FRI JUL 31 2026
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
5 SECONDS AND SE 1 FOOT AT 2 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE.
SAT
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE
1 FOOT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS IN THE
AFTERNOON.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 3 FT AT 5 SECONDS AND E 1 FOOT AT 9 SECONDS. A CHANCE OF
SHOWERS AND TSTMS IN THE EVENING, THEN SHOWERS AND TSTMS LIKELY
AFTER MIDNIGHT.
SUN
SW WINDS 15 KT, BECOMING S 20 TO 25 KT IN THE AFTERNOON.
SEAS 2 TO 3 FT, BUILDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE
DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING
S 5 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE
OF TSTMS. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS IN THE
AFTERNOON.
SUN NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS. A CHANCE OF TSTMS.
SHOWERS.
MON
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT AT 7 SECONDS, BECOMING
S 4 FT AT 6 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT. A CHANCE OF TSTMS. SHOWERS
LIKELY, MAINLY IN THE EVENING.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 2 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-011000-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
440 PM EDT FRI JUL 31 2026
TONIGHT
SE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
5 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING, THEN A
CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
SUN
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT, BUILDING TO 5 TO 6 FT IN THE
AFTERNOON. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 3 FT AT
8 SECONDS, BECOMING S 6 FT AT 7 SECONDS. SHOWERS. A CHANCE OF
TSTMS, MAINLY IN THE MORNING.
SUN NIGHT
S WINDS 20 TO 25 KT. SEAS 6 TO 7 FT. WAVE DETAIL: SW
6 FT AT 7 SECONDS AND SE 5 FT AT 8 SECONDS. A CHANCE OF TSTMS.
SHOWERS.
MON
SW WINDS 20 KT WITH GUSTS TO 25 KT. SEAS 6 TO 7 FT,
SUBSIDING TO 5 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: S 5 FT AT
7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE EVENING, THEN
SHOWERS LIKELY AFTER MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-011000-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
440 PM EDT FRI JUL 31 2026
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE.
SAT
SE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF TSTMS.
A CHANCE OF SHOWERS, MAINLY IN THE MORNING.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT, BUILDING TO 3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING S 3 FT AT
5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF TSTMS. A CHANCE
OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SUN
SW WINDS 15 TO 20 KT, BECOMING S 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 SE 2 FT AT
9 SECONDS, BECOMING S 5 FT AT 7 SECONDS. SHOWERS. A CHANCE OF
TSTMS, MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 6 TO
7 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT
AT 7 SECONDS, BECOMING S 5 FT AT 7 SECONDS. SHOWERS WITH A CHANCE
OF TSTMS.
MON
SW WINDS 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 6 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS. A CHANCE OF TSTMS. SHOWERS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT.
TUE
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
S WINDS 10 KT. SEAS 3 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-011000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
440 PM EDT FRI JUL 31 2026
TONIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
4 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE.
SAT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
4 SECONDS AND SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT, BUILDING TO 3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: S 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS, BECOMING S 3 FT AT
5 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF TSTMS. A CHANCE
OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
SUN
SW WINDS 15 TO 20 KT, BECOMING S 20 TO 25 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT IN THE
AFTERNOON. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS, BECOMING S 5 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
SHOWERS LIKELY. A CHANCE OF TSTMS, MAINLY IN THE MORNING.
SUN NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
6 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS. SHOWERS WITH A CHANCE OF
TSTMS.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 4 FT AT 6 SECONDS. SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AND TSTMS.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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