971
FZUS52 KCHS 180939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
538 AM EDT THU JUN 18 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-182300-
538 AM EDT THU JUN 18 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
THE REMNANTS OF TROPICAL STORM ARTHUR WILL MOVE THROUGH THE
CENTRAL CAROLINAS TONIGHT AND FRIDAY, THEN A COLD FRONT WILL DROP
THROUGH THE AREA EARLY SATURDAY.
AMZ340-182300-
CHARLESTON HARBOR-
539 AM EDT THU JUN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...
TODAY
SW WINDS 10 KT, INCREASING TO 15 KT LATE THIS MORNING. A
CHANCE OF SHOWERS THIS AFTERNOON.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. A CHANCE OF
SHOWERS.
FRI
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
SHOWERS AND TSTMS.
FRI NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING
TO 5 KT AFTER MIDNIGHT. A SLIGHT CHANCE OF TSTMS. A CHANCE OF
SHOWERS, MAINLY IN THE EVENING.
SAT
N WINDS 5 KT, BECOMING E IN THE AFTERNOON.
SAT NIGHT
S WINDS 5 TO 10 KT.
SUN
S WINDS 5 TO 10 KT.
SUN NIGHT
SW WINDS 5 TO 10 KT. A SLIGHT CHANCE OF SHOWERS AND
TSTMS.
MON
SW WINDS 10 TO 15 KT. A SLIGHT CHANCE OF SHOWERS AND
TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. A SLIGHT 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.
AMZ360-182300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
539 AM EDT THU JUN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY EVENING...
TODAY
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS LATE.
TONIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS. A
CHANCE OF SHOWERS.
FRI
SW WINDS 25 TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO 6 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: SW 7 FT AT 6 SECONDS,
BECOMING SW 7 FT AT 7 SECONDS. SHOWERS AND TSTMS.
FRI NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT.
WAVE DETAIL: S 6 FT AT 7 SECONDS, BECOMING S 4 FT AT 7 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
SAT
N WINDS 10 KT, BECOMING E IN THE AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 2 FT AT 7 SECONDS.
A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE MORNING.
SAT NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT
AT 6 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SUN
SW WINDS 10 TO 15 KT. SEAS 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
MON
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-182300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT THU JUN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
FRIDAY EVENING...
TODAY
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 2 TO
3 FT, BUILDING TO 3 TO 4 FT THIS AFTERNOON. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS, BECOMING S 3 FT AT
4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
EARLY THIS AFTERNOON. A CHANCE OF SHOWERS LATE.
TONIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT.
WAVE DETAIL: S 3 FT AT 5 SECONDS, BECOMING S 4 FT AT 6 SECONDS. A
CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. SEAS 4 TO 6 FT.
WAVE DETAIL: SW 6 FT AT 6 SECONDS. TSTMS LIKELY. SHOWERS LIKELY.
FRI NIGHT
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT, SUBSIDING TO 2 TO 3 FT AFTER
MIDNIGHT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 1 FOOT AT
7 SECONDS, BECOMING W 3 FT AT 5 SECONDS AND SE 2 FT AT 7 SECONDS.
A SLIGHT CHANCE OF TSTMS. A CHANCE OF SHOWERS, MAINLY IN THE
EVENING.
SAT
NW WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND SE 2 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. 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 EVENING.
SUN
SW WINDS 5 TO 10 KT. SEAS 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-182300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT THU JUN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...
TODAY
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 8 SECONDS AND S 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS
EARLY THIS AFTERNOON. SHOWERS AND TSTMS LIKELY LATE.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
FRI
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: SW 4 FT AT 5 SECONDS. SHOWERS AND TSTMS LIKELY.
FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, SUBSIDING TO
2 TO 3 FT AFTER MIDNIGHT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SE
1 FOOT AT 7 SECONDS, BECOMING SW 2 FT AT 4 SECONDS AND SE 1 FOOT
AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
SAT
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE MORNING,
THEN A CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON.
SAT 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. A CHANCE OF SHOWERS AND
TSTMS IN THE EVENING.
SUN
W WINDS 5 TO 10 KT. SEAS 2 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
SUN NIGHT
SW WINDS 10 KT. SEAS 2 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-182300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
539 AM EDT THU JUN 18 2026
TODAY
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 FT.
WAVE DETAIL: S 4 FT AT 6 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO
5 FT, BUILDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT
AT 6 SECONDS, BECOMING S 5 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
FRI
SW WINDS 25 TO 30 KT. SEAS 6 TO 8 FT, BUILDING TO 7 TO
9 FT IN THE AFTERNOON. WAVE DETAIL: S 8 FT AT 7 SECONDS, BECOMING
SW 9 FT AT 7 SECONDS. SHOWERS AND TSTMS LIKELY IN THE MORNING,
THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
FRI NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, BECOMING W
10 TO 15 KT WITH GUSTS TO 20 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT,
SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: S 8 FT AT
7 SECONDS, BECOMING S 5 FT AT 7 SECONDS. A CHANCE OF SHOWERS. A
SLIGHT CHANCE OF TSTMS IN THE EVENING, THEN A CHANCE OF TSTMS
AFTER MIDNIGHT.
SAT
NW WINDS 10 TO 15 KT, BECOMING NE 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT IN THE
AFTERNOON. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND SE 2 FT AT
7 SECONDS, BECOMING SW 2 FT AT 5 SECONDS AND SE 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS AND TSTMS IN THE MORNING.
SAT NIGHT
SE WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 6 SECONDS.
SUN
S WINDS 5 TO 10 KT. SEAS 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
MON
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-182300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT THU JUN 18 2026
TODAY
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND SE 3 FT AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS LATE.
TONIGHT
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: S 3 FT AT 6 SECONDS, BECOMING S 4 FT AT 6 SECONDS. A
CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
SW WINDS 25 TO 30 KT. SEAS 5 TO 7 FT, BUILDING TO 6 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: S 7 FT AT 6 SECONDS, BECOMING
S 7 FT AT 7 SECONDS. TSTMS LIKELY IN THE MORNING. SHOWERS LIKELY.
FRI NIGHT
W WINDS 20 TO 25 KT, DIMINISHING TO 15 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT.
WAVE DETAIL: S 6 FT AT 7 SECONDS, BECOMING S 4 FT AT 6 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
SAT
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND
SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS AND TSTMS, MAINLY IN
THE MORNING.
SAT NIGHT
SW WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SW 1 FOOT AT 4 SECONDS.
SUN
SW WINDS 5 TO 10 KT. SEAS 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
MON
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-182300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT THU JUN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY EVENING...
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS.
A SLIGHT CHANCE OF SHOWERS EARLY THIS AFTERNOON. A CHANCE OF
SHOWERS LATE.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS. A CHANCE OF SHOWERS,
MAINLY IN THE EVENING.
FRI
SW 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: S 5 FT AT
6 SECONDS. A CHANCE OF SHOWERS. TSTMS LIKELY IN THE AFTERNOON.
FRI NIGHT
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT
AT 5 SECONDS AND SE 2 FT AT 7 SECONDS, BECOMING W 3 FT AT
5 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS AND
TSTMS.
SAT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING TO
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS, MAINLY IN THE MORNING.
SAT NIGHT
W WINDS 5 TO 10 KT. 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.
SUN
W WINDS 5 TO 10 KT. SEAS 2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
MON NIGHT
SW WINDS 15 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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