349
FZUS52 KCHS 210941
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
440 AM EST WED JAN 21 2026
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
AMZ300-212300-
440 AM EST WED JAN 21 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE AND QUIET CONDITIONS ARE EXPECTED TO PREVAIL ACROSS
THE LOCAL WATERS THROUGH THE END OF THE WEEK. A STRONG COLD FRONT
IS EXPECTED TO MOVE THROUGH THE WATERS FRIDAY NIGHT, BRINGING
STRENGTHENING WINDS AND INCREASING SEAS FOR THE WEEKEND.
AMZ330-212300-
CHARLESTON HARBOR-
440 AM EST WED JAN 21 2026
TODAY
NE WINDS 5 KT.
TONIGHT
NE WINDS 5 KT IN THE EVENING, BECOMING LIGHT AND
VARIABLE.
THU
VARIABLE WINDS 5 KT.
THU NIGHT
E WINDS 5 KT.
FRI
N WINDS 5 KT. A SLIGHT CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT AFTER
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS IN THE EVENING, THEN A
CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT
NE WINDS 15 KT. A CHANCE OF RAIN.
SAT NIGHT
NE WINDS 15 KT. RAIN.
SUN
N WINDS 10 TO 15 KT. RAIN.
SUN NIGHT
N WINDS 10 KT. RAIN LIKELY.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 51 DEGREES.
AMZ350-212300-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
440 AM EST WED JAN 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 3 FT. WAVE DETAIL: NE 2 FT AT
4 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
NE WINDS 5 KT, BECOMING NW AFTER MIDNIGHT. SEAS 3 FT.
WAVE DETAIL: SE 3 FT AT 10 SECONDS AND E 2 FT AT 4 SECONDS.
THU
N WINDS 5 KT, BECOMING NE IN THE AFTERNOON. SEAS 3 FT.
WAVE DETAIL: E 3 FT AT 10 SECONDS.
THU NIGHT
E WINDS 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 10 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 10 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER
MIDNIGHT. WAVE DETAIL: SE 4 FT AT 10 SECONDS, BECOMING NE 4 FT AT
5 SECONDS AND SE 4 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
SAT
NE WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. RAIN LIKELY.
SAT NIGHT
NE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. RAIN.
SUN
N WINDS 15 TO 20 KT. SEAS 6 TO 8 FT. RAIN.
SUN NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. RAIN LIKELY.
AMZ352-212300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
440 AM EST WED JAN 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 3 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
NE WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT
9 SECONDS AND E 2 FT AT 4 SECONDS.
THU
NE WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT
10 SECONDS.
THU NIGHT
E WINDS 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 10 SECONDS.
FRI
NE WINDS 5 KT. SEAS 3 FT. WAVE DETAIL: SE 3 FT AT
10 SECONDS. A SLIGHT CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE
DETAIL: SE 3 FT AT 10 SECONDS, BECOMING NE 4 FT AT 4 SECONDS AND
SE 3 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
SAT
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. A CHANCE OF RAIN.
SAT NIGHT
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT. RAIN LIKELY.
SUN
N WINDS 15 KT. SEAS 5 TO 7 FT. RAIN.
SUN NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. RAIN LIKELY.
AMZ354-212300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
440 AM EST WED JAN 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 3 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
NE WINDS 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT
5 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 10 SECONDS.
THU NIGHT
E WINDS 5 KT. SEAS 3 FT. WAVE DETAIL: E 3 FT AT
10 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 3 FT. WAVE DETAIL: E 3 FT AT
10 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
FRI NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 FT, BUILDING TO 4 TO 5 FT AFTER MIDNIGHT. WAVE
DETAIL: E 3 FT AT 10 SECONDS, BECOMING NE 4 FT AT 4 SECONDS AND E
3 FT AT 10 SECONDS. A SLIGHT CHANCE OF SHOWERS.
SAT
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. A CHANCE OF RAIN.
SAT NIGHT
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. RAIN LIKELY.
SUN
N WINDS 15 TO 20 KT. SEAS 5 TO 6 FT. RAIN.
SUN NIGHT
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. RAIN LIKELY.
AMZ374-212300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
440 AM EST WED JAN 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT
AT 9 SECONDS AND NE 2 FT AT 4 SECONDS.
TONIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 9 SECONDS AND NE 2 FT AT 5 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 10 SECONDS AND NE 2 FT AT 6 SECONDS.
THU NIGHT
NE WINDS 5 TO 10 KT. SEAS 4 FT. WAVE DETAIL: E 4 FT
AT 10 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 10 SECONDS. A SLIGHT CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: E 4 FT AT 10 SECONDS, BECOMING NE 4 FT AT
4 SECONDS AND E 4 FT AT 10 SECONDS. A SLIGHT CHANCE OF SHOWERS IN
THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT. A CHANCE OF RAIN.
SAT NIGHT
NE WINDS 20 TO 25 KT. SEAS 6 TO 8 FT. RAIN LIKELY.
SUN
NW WINDS 15 TO 20 KT. SEAS 6 TO 8 FT. RAIN LIKELY.
SUN NIGHT
NW WINDS 15 TO 20 KT. SEAS 6 TO 7 FT. RAIN LIKELY.
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