396
FZUS52 KCHS 082150
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
550 PM EDT Wed Oct 8 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

AMZ300-091000-
550 PM EDT Wed Oct 8 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will drop south through the area tonight into
Thursday with inland high pressure prevailing into early next
week. Low pressure will develop off the Southeast U.S. coast this
weekend.

$$

AMZ330-091000-
Charleston Harbor-
550 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT THURSDAY THROUGH
LATE SATURDAY NIGHT...

.TONIGHT...SE winds 5 kt, becoming NE late this evening, then
increasing to 10 to 15 kt with gusts to 25 kt late. A chance of
tstms.
.THU...NE winds 15 to 20 kt with gusts to 30 kt. Waves 1 to 2 ft.
A chance of showers and tstms in the morning, then a slight
chance of showers in the afternoon.
.THU NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. A chance of showers after midnight.
.FRI...NE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
A chance of showers in the morning, then a chance of showers with
a slight chance of tstms in the afternoon.
.FRI NIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to
3 ft. A chance of showers with a slight chance of tstms.
.SAT...N winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
A slight chance of tstms in the morning. A chance of showers.
.SAT NIGHT...N winds 15 to 20 kt with gusts to 30 kt. Waves 1 to
2 ft. A chance of showers.
.SUN...N winds 15 to 20 kt. Waves 1 to 2 ft. A slight chance of
showers.
.SUN NIGHT...N winds 10 to 15 kt.
.MON...NW winds 10 to 15 kt.
.MON NIGHT...NW winds 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 78 degrees.

$$

AMZ350-091000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
550 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH
SATURDAY EVENING...

.TONIGHT...SE winds 5 kt, becoming NE late this evening, then
increasing to 20 to 25 kt with gusts to 30 kt late. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 8 seconds. A chance of tstms. A chance of showers this
evening, then showers likely after midnight.
.THU...NE winds 25 to 30 kt. Seas 5 to 7 ft, building to 7 to
9 ft in the afternoon. Wave Detail: NE 7 ft at 6 seconds,
becoming NE 8 ft at 7 seconds. A chance of showers and tstms in
the morning, then a slight chance of showers in the afternoon.
.THU NIGHT...NE winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail:
E 10 ft at 8 seconds. A slight chance of showers in the evening,
then a chance of showers with a slight chance of tstms after
midnight.
.FRI...NE winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail: E
10 ft at 9 seconds. A chance of showers with a slight chance of
tstms in the morning, then showers likely with a chance of tstms
in the afternoon.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 9 to 10 ft, subsiding to
8 to 10 ft after midnight. Wave Detail: E 10 ft at 9 seconds.
Showers likely with a chance of tstms.
.SAT...NE winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail: E
10 ft at 9 seconds. Showers likely with a slight chance of tstms
in the morning, then a chance of showers in the afternoon.
.SAT NIGHT...N winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.
.SUN...N winds 25 to 30 kt. Seas 7 to 9 ft. A slight chance of
showers.
.SUN NIGHT...N winds 20 to 25 kt. Seas 5 to 7 ft.
.MON...NW winds 15 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...NW winds 15 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-091000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
550 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT THURSDAY THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH
SATURDAY EVENING...

.TONIGHT...E winds 5 kt, becoming NE after midnight, then
increasing to 20 to 25 kt with gusts to 30 kt late. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 8 seconds. A slight chance of
showers and tstms early this evening, then a chance of showers
and tstms late this evening.
.THU...NE winds 25 to 30 kt. Seas 4 to 6 ft, building to 6 to
8 ft in the afternoon. Wave Detail: NE 6 ft at 8 seconds,
becoming E 8 ft at 7 seconds. A chance of showers. A chance of
tstms, mainly in the morning.
.THU NIGHT...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. A
chance of showers. A slight chance of tstms after midnight.
.FRI...NE winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail: E
10 ft at 9 seconds. A slight chance of tstms. A chance of showers
in the morning, then showers likely in the afternoon.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail:
E 10 ft at 9 seconds. A slight chance of tstms. Showers likely,
mainly in the evening.
.SAT...N winds 25 to 30 kt. Seas 8 to 10 ft, subsiding to 7 to
9 ft in the afternoon. Wave Detail: E 10 ft at 9 seconds,
becoming E 9 ft at 9 seconds. A chance of showers with a slight
chance of tstms in the morning, then a chance of showers in the
afternoon.
.SAT NIGHT...N winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers, mainly in the evening.
.SUN...N winds 20 to 25 kt. Seas 6 to 8 ft.
.SUN NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft.
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-091000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
550 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH
SATURDAY EVENING...

.TONIGHT...E winds 5 to 10 kt, becoming NE 15 to 20 kt with gusts
to 25 kt late. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds. A
slight chance of showers and tstms late this evening.
.THU...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 4 to 6 ft, building to 6 to 8 ft in the
afternoon. Wave Detail: NE 6 ft at 7 seconds, becoming NE 8 ft at
7 seconds. A chance of showers and tstms.
.THU NIGHT...NE winds 30 kt. Seas 7 to 9 ft, building to 8 to
10 ft after midnight. Wave Detail: NE 9 ft at 7 seconds, becoming
NE 9 ft at 8 seconds. A chance of showers with a slight chance of
tstms.
.FRI...NE winds 30 kt. Seas 8 to 10 ft. Wave Detail: NE 10 ft at
8 seconds. A slight chance of tstms. A chance of showers in the
morning, then showers likely in the afternoon.
.FRI NIGHT...NE winds 30 kt. Seas 9 to 10 ft, subsiding to 8 to
10 ft after midnight. Wave Detail: E 10 ft at 9 seconds. A slight
chance of tstms. Showers likely, mainly in the evening.
.SAT...N winds 25 to 30 kt. Seas 8 to 10 ft. Wave Detail: NE
10 ft at 9 seconds. A chance of showers.
.SAT NIGHT...N winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers, mainly in the evening.
.SUN...N winds 20 to 25 kt. Seas 6 to 8 ft.
.SUN NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft.
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-091000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
550 PM EDT Wed Oct 8 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TONIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts to 25 kt late. Seas 3 to 4 ft. Wave Detail: E 4 ft at
8 seconds. A slight chance of showers and tstms after midnight. A
chance of tstms with a slight chance of showers late.
.THU...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 5 to 7 ft, building to 8 to 10 ft in the
afternoon. Wave Detail: NE 7 ft at 7 seconds, becoming NE 9 ft at
7 seconds. A chance of tstms. A chance of showers in the morning,
then showers likely in the afternoon.
.THU NIGHT...NE winds 30 kt with gusts to 40 kt. Seas 9 to 11 ft,
building to 10 to 11 ft after midnight. Wave Detail: NE 11 ft at
8 seconds. Showers likely with a chance of tstms. Vsby 1 to 3 NM
after midnight.
.FRI...NE winds 25 to 30 kt. Seas 10 to 11 ft. Wave Detail: NE
11 ft at 9 seconds. Showers with a chance of tstms. Vsby 1 to
3 NM in the morning.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 10 to 12 ft, building to
11 to 12 ft after midnight. Wave Detail: NE 12 ft at 9 seconds. A
chance of tstms. Showers.
.SAT...N winds 30 kt. Seas 10 to 12 ft. Wave Detail: NE 12 ft at
9 seconds. A slight chance of tstms. Showers likely, mainly in
the morning.
.SAT NIGHT...N winds 25 to 30 kt. Seas 10 to 12 ft, subsiding to
9 to 12 ft after midnight. A chance of showers.
.SUN...N winds 20 to 25 kt. Seas 8 to 10 ft. A slight chance of
showers.
.SUN NIGHT...N winds 15 to 20 kt. Seas 7 to 9 ft.
.MON...NW winds 15 to 20 kt. Seas 6 to 8 ft.
.MON NIGHT...W winds 15 kt. Seas 5 to 7 ft.

Winds and seas higher in and near tstms.

$$