334
FZUS52 KCHS 200939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
538 AM EDT SAT JUN 20 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-202300-
538 AM EDT SAT JUN 20 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A WEAK COLD FRONT WILL SAG SOUTHWARD ACROSS THE AREA THIS MORNING
BEFORE STALLING ACROSS SOUTHEAST GEORGIA THROUGH TONIGHT. BROAD
HIGH PRESSURE WILL LINGER OVER THE REGION THROUGH THE REST OF
THIS WEEKEND. ANOTHER COLD FRONT WILL APPROACH THE SOUTHEAST U.S.
EARLY NEXT WEEK.
AMZ340-202300-
CHARLESTON HARBOR-
538 AM EDT SAT JUN 20 2026
TODAY
NW WINDS 5 KT, BECOMING E THIS AFTERNOON.
TONIGHT
VARIABLE WINDS 5 KT.
SUN
W WINDS 5 KT, BECOMING S IN THE AFTERNOON. A SLIGHT CHANCE
OF SHOWERS IN THE MORNING.
SUN NIGHT
S WINDS 5 TO 10 KT.
MON
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
TO 20 KT IN THE AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND TSTMS
IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT.
TUE
SW WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND TSTMS.
TUE NIGHT
W WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 82 DEGREES.
AMZ360-202300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
538 AM EDT SAT JUN 20 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING E LATE. SEAS 2 TO 3 FT.
WAVE DETAIL: S 2 FT AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS EARLY THIS MORNING.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS.
SUN
W WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 FT. WAVE
DETAIL: SE 2 FT AT 7 SECONDS AND S 1 FOOT AT 3 SECONDS. A SLIGHT
CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
S WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
3 SECONDS AND SE 2 FT AT 7 SECONDS.
MON
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH GUSTS
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT
IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT
AT 7 SECONDS, BECOMING S 4 FT AT 6 SECONDS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS.
TUE
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
W WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-202300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
538 AM EDT SAT JUN 20 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING N EARLY THIS AFTERNOON,
THEN BECOMING SW LATE. SEAS 2 FT. WAVE DETAIL: W 2 FT AT
4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS. A SLIGHT CHANCE OF TSTMS IN THE EVENING. A SLIGHT
CHANCE OF SHOWERS.
SUN
NW WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING.
SUN NIGHT
S WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
MON NIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-202300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
538 AM EDT SAT JUN 20 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS AND
TSTMS THIS AFTERNOON.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS AND
TSTMS IN THE EVENING, THEN A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
SUN
NW WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.
SUN NIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 1 FOOT AT
3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
SW WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-202300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
538 AM EDT SAT JUN 20 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING N THIS AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS. A CHANCE OF SHOWERS
AND TSTMS EARLY THIS MORNING.
TONIGHT
SW WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT
6 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SUN
W WINDS 5 KT, BECOMING S IN THE AFTERNOON. SEAS 2 FT. WAVE
DETAIL: SE 2 FT AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS. A SLIGHT
CHANCE OF SHOWERS IN THE MORNING.
SUN NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
MON
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT WITH GUSTS
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT
IN THE AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT
AT 7 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE
SW WINDS 15 TO 20 KT. SEAS 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS 10 KT. SEAS 3 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-202300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
538 AM EDT SAT JUN 20 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO
3 FT THIS AFTERNOON. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT
AT 7 SECONDS, BECOMING SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT
4 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS UNTIL LATE
AFTERNOON.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS AFTER MIDNIGHT.
SUN
NW WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE MORNING.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
MON
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND
SE 1 FOOT AT 7 SECONDS.
MON NIGHT
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 SE 2 FT AT 7 SECONDS.
A SLIGHT CHANCE OF SHOWERS AND TSTMS.
TUE
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WED NIGHT
SW WINDS 10 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-202300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
538 AM EDT SAT JUN 20 2026
TODAY
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A SLIGHT CHANCE OF TSTMS. A
CHANCE OF SHOWERS, MAINLY IN THE EVENING.
SUN
NW WINDS 5 KT, BECOMING SW IN THE AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE MORNING.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 1 FOOT AT 6 SECONDS.
MON NIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WED NIGHT
SW WINDS 10 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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