412
FZUS52 KCHS 301728
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
128 PM EDT THU OCT 30 2025
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
AMZ300-310615-
128 PM EDT THU OCT 30 2025
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
COOL AND DRY HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY AND
WILL LINGER THROUGH THIS WEEKEND. A LOW PRESSURE SYSTEM COULD
IMPACT THE AREA EARLY NEXT WEEK.
AMZ330-310615-
CHARLESTON HARBOR-
128 PM EDT THU OCT 30 2025
THIS AFTERNOON
W WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT.
FRI
W WINDS 5 TO 10 KT.
FRI NIGHT
NW WINDS 5 TO 10 KT.
SAT
N WINDS 5 KT, BECOMING NE IN THE AFTERNOON.
SAT NIGHT
NE WINDS 5 KT.
SUN
NE WINDS 5 TO 10 KT.
SUN NIGHT
NE WINDS 10 KT. A CHANCE OF SHOWERS AND TSTMS.
MON
N WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND TSTMS.
MON NIGHT
N WINDS 10 TO 15 KT. A SLIGHT CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 65 DEGREES.
AMZ350-310615-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
128 PM EDT THU OCT 30 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
THIS AFTERNOON
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND E 3 FT AT
9 SECONDS.
TONIGHT
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT.
WAVE DETAIL: W 5 FT AT 5 SECONDS AND E 2 FT AT 10 SECONDS,
BECOMING W 5 FT AT 6 SECONDS AND SE 4 FT AT 13 SECONDS.
FRI
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE 5 FT
AT 13 SECONDS AND W 4 FT AT 6 SECONDS.
FRI NIGHT
NW WINDS 10 KT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: SE 4 FT AT 12 SECONDS AND W
2 FT AT 5 SECONDS, BECOMING SE 3 FT AT 11 SECONDS AND W 2 FT AT
4 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
10 SECONDS AND W 2 FT AT 4 SECONDS.
SAT NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 9 SECONDS AND SW 1 FOOT AT 4 SECONDS.
SUN
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AND TSTMS.
MON
N WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. A SLIGHT CHANCE
OF SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ352-310615-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
128 PM EDT THU OCT 30 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
W WINDS 15 KT, INCREASING TO 20 KT WITH GUSTS TO
25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND E 3
FT AT 9 SECONDS.
TONIGHT
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND E
3 FT AT 13 SECONDS.
FRI
W WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT
AT 4 SECONDS AND SE 4 FT AT 13 SECONDS.
FRI NIGHT
NW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 12 SECONDS AND W 2 FT AT 4 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
11 SECONDS AND W 2 FT AT 3 SECONDS.
SAT NIGHT
NE WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
10 SECONDS AND W 1 FOOT AT 3 SECONDS.
SUN
NE WINDS 5 TO 10 KT. SEAS 2 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
MON
N WINDS 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS AND
TSTMS.
MON NIGHT
N WINDS 15 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE OF
SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ354-310615-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
128 PM EDT THU OCT 30 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
THIS AFTERNOON
W WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: W 4 FT AT 4 SECONDS AND E 3 FT AT
11 SECONDS.
TONIGHT
W WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT.
WAVE DETAIL: W 4 FT AT 4 SECONDS AND E 3 FT AT 10 SECONDS,
BECOMING NW 4 FT AT 4 SECONDS AND E 3 FT AT 12 SECONDS.
FRI
NW WINDS 15 TO 20 KT, BECOMING W 10 KT IN THE AFTERNOON.
SEAS 4 TO 5 FT. WAVE DETAIL: W 4 FT AT 4 SECONDS AND SE 3 FT AT
13 SECONDS.
FRI NIGHT
NW WINDS 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 12 SECONDS AND W 2 FT AT 3 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
11 SECONDS AND NW 2 FT AT 3 SECONDS.
SAT NIGHT
NE WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
9 SECONDS.
SUN
NE WINDS 10 TO 15 KT. SEAS 2 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
MON
N WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE
OF SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ374-310615-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
128 PM EDT THU OCT 30 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
THIS AFTERNOON
W WINDS 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 5 FT AT 5 SECONDS AND E 4 FT AT 10 SECONDS.
TONIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 6 FT AT 5 SECONDS AND E 5 FT AT 13 SECONDS.
FRI
NW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO 6 FT IN THE
AFTERNOON. WAVE DETAIL: NW 5 FT AT 5 SECONDS AND SE 5 FT AT
13 SECONDS, BECOMING NW 4 FT AT 5 SECONDS AND SE 4 FT AT
12 SECONDS.
FRI NIGHT
NW WINDS 10 KT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO
4 FT AFTER MIDNIGHT. WAVE DETAIL: SE 4 FT AT 11 SECONDS AND NW
3 FT AT 4 SECONDS, BECOMING E 4 FT AT 11 SECONDS AND NW 2 FT AT
4 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT AT
10 SECONDS AND NW 2 FT AT 3 SECONDS.
SAT NIGHT
NE WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 10 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SUN
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
MON
N WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. A SLIGHT CHANCE
OF SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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