688
FZUS52 KCHS 070939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 AM EDT TUE APR 7 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
AMZ300-072300-
539 AM EDT TUE APR 7 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL BUILD FROM THE NORTH AND WEST THROUGHOUT THE
WEEK, WITH STRONG NORTHEAST WINDS AND BUILDING SEAS THROUGH MID
WEEK, DECREASING INTO THE END OF THE WEEK.
AMZ330-072300-
CHARLESTON HARBOR-
539 AM EDT TUE APR 7 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY EVENING...
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT.
TONIGHT
NE WINDS 15 KT WITH GUSTS TO 20 KT, INCREASING TO
20 TO 25 KT WITH GUSTS TO 30 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 2 TO 3 FT.
WED NIGHT
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT. A
SLIGHT CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. WAVES 1 TO 2 FT. A SLIGHT CHANCE OF SHOWERS.
FRI
NE WINDS 10 TO 15 KT.
FRI NIGHT
NE WINDS 5 TO 10 KT.
SAT
NE WINDS 5 TO 10 KT.
SAT NIGHT
E WINDS 5 KT.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 67 DEGREES.
AMZ350-072300-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
539 AM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TODAY
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT LATE
THIS MORNING. SEAS 4 TO 6 FT, BUILDING TO 5 TO 6 FT THIS
AFTERNOON. WAVE DETAIL: E 4 FT AT 8 SECONDS AND SE 3 FT AT
9 SECONDS, BECOMING E 6 FT AT 8 SECONDS AND SE 3 FT AT 8 SECONDS.
A SLIGHT CHANCE OF SHOWERS EARLY THIS MORNING.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, INCREASING
TO 25 TO 35 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT, BUILDING TO 7 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: E 7 FT AT 8 SECONDS, BECOMING E
9 FT AT 8 SECONDS.
WED
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 9 TO 11 FT,
BUILDING TO 9 TO 12 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT
9 SECONDS, BECOMING E 12 FT AT 10 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE AFTERNOON.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO
12 FT. WAVE DETAIL: E 11 FT AT 10 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. WAVE DETAIL: E
10 FT AT 11 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 20 TO 25 KT. GUSTS TO 35 KT IN THE EVENING.
SEAS 8 TO 10 FT, SUBSIDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE
DETAIL: E 10 FT AT 11 SECONDS, BECOMING E 9 FT AT 11 SECONDS. A
CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
AMZ352-072300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 5 TO
7 FT, BUILDING TO 6 TO 8 FT THIS AFTERNOON. WAVE DETAIL: E 6 FT
AT 8 SECONDS AND SE 2 FT AT 9 SECONDS, BECOMING E 7 FT AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS THIS MORNING.
TONIGHT
NE WINDS 25 TO 35 KT. SEAS 6 TO 8 FT, BUILDING TO 7 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: E 8 FT AT 8 SECONDS, BECOMING E
9 FT AT 8 SECONDS.
WED
NE WINDS 30 TO 35 KT WITH GUSTS TO 45 KT. SEAS 9 TO 11 FT,
BUILDING TO 10 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT
9 SECONDS, BECOMING E 12 FT AT 10 SECONDS. A SLIGHT CHANCE OF
SHOWERS.
WED NIGHT
NE WINDS 30 KT WITH GUSTS TO 40 KT. SEAS 10 TO
13 FT, SUBSIDING TO 9 TO 12 FT AFTER MIDNIGHT. WAVE DETAIL: E
12 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 11 FT. WAVE DETAIL: E
11 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 9 TO 11 FT, SUBSIDING TO 8 TO 10 FT AFTER
MIDNIGHT. WAVE DETAIL: E 10 FT AT 10 SECONDS, BECOMING E 10 FT AT
11 SECONDS. A CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
NE WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
AMZ354-072300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
WEDNESDAY NIGHT...
TODAY
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT, INCREASING TO
25 TO 30 KT LATE. SEAS 5 TO 7 FT, BUILDING TO 6 TO 8 FT THIS
AFTERNOON. WAVE DETAIL: NE 7 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS, BECOMING E 8 FT AT 8 SECONDS. A CHANCE OF SHOWERS,
MAINLY THIS MORNING.
TONIGHT
NE WINDS 25 TO 30 KT. SEAS 7 TO 9 FT, BUILDING TO 8 TO
10 FT AFTER MIDNIGHT. WAVE DETAIL: E 9 FT AT 8 SECONDS, BECOMING
E 10 FT AT 8 SECONDS.
WED
NE WINDS 30 TO 35 KT. SEAS 9 TO 12 FT, BUILDING TO 10 TO
13 FT IN THE AFTERNOON. WAVE DETAIL: E 12 FT AT 9 SECONDS,
BECOMING E 13 FT AT 10 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
NE WINDS 25 TO 30 KT WITH GUSTS TO 40 KT. SEAS 10 TO
13 FT. WAVE DETAIL: E 13 FT AT 10 SECONDS. A CHANCE OF SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 9 TO 12 FT, SUBSIDING TO 9 TO
11 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT 11 SECONDS,
BECOMING E 10 FT AT 12 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 9 TO 11 FT, SUBSIDING TO 8 TO 10 FT AFTER
MIDNIGHT. WAVE DETAIL: E 11 FT AT 11 SECONDS, BECOMING E 10 FT AT
11 SECONDS. A CHANCE OF SHOWERS, MAINLY IN THE EVENING.
FRI
NE WINDS 15 TO 20 KT. SEAS 7 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
AMZ374-072300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
539 AM EDT TUE APR 7 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON
...GALE WARNING IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...
TODAY
NE WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT THIS
AFTERNOON. SEAS 7 TO 9 FT, BUILDING TO 9 TO 11 FT THIS AFTERNOON.
WAVE DETAIL: NE 9 FT AT 8 SECONDS AND SE 3 FT AT 9 SECONDS,
BECOMING NE 11 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
TONIGHT
NE WINDS 30 KT WITH GUSTS TO 40 KT. SEAS 9 TO 12 FT,
BUILDING TO 10 TO 13 FT AFTER MIDNIGHT. WAVE DETAIL: NE 12 FT AT
8 SECONDS, BECOMING NE 13 FT AT 9 SECONDS. A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
NE WINDS 35 KT WITH GUSTS TO 45 KT. SEAS 12 TO 16 FT,
BUILDING TO 13 TO 17 FT IN THE AFTERNOON. WAVE DETAIL: E 15 FT AT
9 SECONDS, BECOMING E 16 FT AT 10 SECONDS. A SLIGHT CHANCE OF
TSTMS IN THE MORNING. A CHANCE OF SHOWERS.
WED NIGHT
NE WINDS 30 TO 35 KT, DIMINISHING TO 25 TO 30 KT
AFTER MIDNIGHT. SEAS 14 TO 16 FT, SUBSIDING TO 13 TO 15 FT AFTER
MIDNIGHT. WAVE DETAIL: E 16 FT AT 11 SECONDS, BECOMING E 15 FT AT
11 SECONDS. A SLIGHT CHANCE OF TSTMS IN THE EVENING. A CHANCE OF
SHOWERS.
THU
NE WINDS 25 TO 30 KT. SEAS 12 TO 14 FT. WAVE DETAIL: E
14 FT AT 11 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
NE WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 11 TO 14 FT, SUBSIDING TO 10 TO 13 FT AFTER
MIDNIGHT. WAVE DETAIL: E 13 FT AT 11 SECONDS, BECOMING E 12 FT AT
11 SECONDS. A CHANCE OF SHOWERS.
FRI
NE WINDS 20 TO 25 KT. SEAS 9 TO 11 FT. A SLIGHT CHANCE OF
SHOWERS.
FRI NIGHT
NE WINDS 15 TO 20 KT. SEAS 8 TO 10 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page