901
FZUS52 KCHS 032330
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
730 PM EDT Fri Oct 3 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

AMZ300-041200-
730 PM EDT Fri Oct 3 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A strong high pressure will extend across the region into the
weekend, with rain chances increasing on Sunday into early next
week. A strong cold front will likely cross the area later next
week.

$$

AMZ330-041200-
Charleston Harbor-
730 PM EDT Fri Oct 3 2025

.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. A slight
chance of showers and tstms late.
.SAT...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Waves 1 to 2 ft. A slight chance of showers in the
afternoon.
.SAT NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Waves 1 to 2 ft.
.SUN...E winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
A slight chance of tstms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.SUN NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Waves 1 to 2 ft. A slight chance of tstms. A
chance of showers, mainly in the evening.
.MON...E winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Waves 1 to 2 ft. A chance of showers.
.MON NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Waves 1 to 2 ft. A chance of showers in the
evening, then a slight chance of showers and tstms after
midnight.
.TUE...E winds 10 to 15 kt. A slight chance of showers and tstms.
.TUE NIGHT...E winds 10 to 15 kt.
.WED...NE winds 10 to 15 kt. A slight chance of showers and
tstms.
.WED NIGHT...NE winds 10 to 15 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 76 degrees.

$$

AMZ350-041200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
730 PM EDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 7 ft
at 7 seconds and E 2 ft at 12 seconds, becoming E 6 ft at
7 seconds and E 2 ft at 12 seconds. A slight chance of showers. A
slight chance of tstms late this evening.
.SAT...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 5 to 6 ft, building to 5 to 7 ft in the
afternoon. Wave Detail: E 6 ft at 8 seconds and E 2 ft at
12 seconds, becoming E 7 ft at 8 seconds. A slight chance of
showers.
.SAT NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to
7 ft. Wave Detail: E 7 ft at 7 seconds. A slight chance of
showers. A slight chance of tstms after midnight.
.SUN...E winds 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave
Detail: E 7 ft at 8 seconds and E 1 foot at 13 seconds. A slight
chance of showers and tstms.
.SUN NIGHT...E winds 20 to 25 kt. Seas 6 to 7 ft. Wave Detail: E
7 ft at 8 seconds and E 1 foot at 13 seconds. A chance of showers
with a slight chance of tstms.
.MON...E winds 20 kt with gusts to 25 kt. Seas 6 to 7 ft. Wave
Detail: E 7 ft at 8 seconds and E 1 foot at 14 seconds. A chance
of showers.
.MON NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 6 to
7 ft, subsiding to 5 to 7 ft after midnight. A slight chance of
showers in the evening, then a slight chance of showers and tstms
after midnight.
.TUE...E winds 15 to 20 kt. Seas 5 to 6 ft. A slight chance of
showers and tstms.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. A slight chance
of showers.
.WED...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.
.WED NIGHT...NE 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.

$$

AMZ352-041200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
730 PM EDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 7 ft
at 8 seconds and E 2 ft at 14 seconds, becoming E 6 ft at
7 seconds and E 2 ft at 13 seconds. A slight chance of showers
and tstms late this evening.
.SAT...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 4 to 6 ft, building to 5 to 7 ft in the
afternoon. Wave Detail: E 6 ft at 7 seconds and E 2 ft at
13 seconds, becoming E 7 ft at 7 seconds and E 1 foot at
13 seconds. A slight chance of tstms in the morning. A slight
chance of showers.
.SAT NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to
8 ft, subsiding to 6 to 7 ft after midnight. Wave Detail: E 7 ft
at 7 seconds. A slight chance of tstms. A slight chance of
showers.
.SUN...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 7 ft,
building to 6 to 8 ft in the afternoon. Wave Detail: E 7 ft at
8 seconds and E 1 foot at 14 seconds. A chance of showers and
tstms.
.SUN NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 7 to
8 ft, subsiding to 6 to 8 ft after midnight. Wave Detail: E 8 ft
at 8 seconds and E 1 foot at 14 seconds. A chance of showers and
tstms.
.MON...E winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 8 ft.
Wave Detail: E 8 ft at 8 seconds and E 1 foot at 14 seconds. A
chance of showers.
.MON NIGHT...E winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 6 to 8 ft, subsiding to 6 to 7 ft after
midnight. A chance of showers.
.TUE...E winds 15 kt. Seas 5 to 7 ft. A chance of showers with a
slight chance of tstms.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. A slight chance
of showers.
.WED...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.
.WED NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ354-041200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
730 PM EDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

.TONIGHT...NE winds 20 kt, diminishing to 15 kt late. Seas 5 to
7 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 7 ft
at 7 seconds and E 3 ft at 14 seconds, becoming E 6 ft at
7 seconds and E 3 ft at 14 seconds. A slight chance of showers
this evening. A slight chance of tstms. A chance of showers after
midnight.
.SAT...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 5 to 7 ft, building to 6 to 7 ft in the
afternoon. Wave Detail: E 6 ft at 7 seconds and E 4 ft at
13 seconds, becoming E 7 ft at 7 seconds and E 3 ft at
13 seconds. A slight chance of showers. A slight chance of tstms
in the morning, then a chance of tstms in the afternoon.
.SAT NIGHT...E winds 20 to 25 kt. Seas 7 to 8 ft, subsiding to
6 to 8 ft after midnight. Wave Detail: E 8 ft at 7 seconds and E
2 ft at 13 seconds, becoming E 7 ft at 8 seconds. A chance of
showers and tstms.
.SUN...E winds 20 to 25 kt. Seas 6 to 7 ft, building to 6 to 8 ft
in the afternoon. Wave Detail: E 7 ft at 8 seconds, becoming E
8 ft at 8 seconds and E 1 foot at 14 seconds. A chance of showers
and tstms.
.SUN NIGHT...E winds 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: E
8 ft at 8 seconds and E 1 foot at 14 seconds. A chance of tstms.
A chance of showers.
.MON...E winds 20 to 25 kt. Seas 7 to 8 ft. Wave Detail: E 8 ft
at 8 seconds and E 1 foot at 14 seconds. A slight chance of
tstms. Showers likely, mainly in the morning.
.MON NIGHT...E winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 7 to 8 ft, subsiding to 6 to 8 ft after
midnight. A slight chance of tstms in the evening. A chance of
showers.
.TUE...E winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers.
.TUE NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. A slight chance
of showers.
.WED...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.
.WED NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$

AMZ374-041200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
730 PM EDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.TONIGHT...NE winds 15 to 20 kt. Seas 7 to 8 ft, subsiding to
6 to 8 ft after midnight. Wave Detail: E 8 ft at 13 seconds. A
chance of showers. A slight chance of tstms early this evening,
then a chance of tstms late this evening.
.SAT...E winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 7 to 9 ft. Wave Detail: E 9 ft at 8 seconds and E
8 ft at 12 seconds. A slight chance of showers and tstms in the
morning, then a chance of showers and tstms in the afternoon.
.SAT NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 8 to
9 ft, building to 8 to 10 ft after midnight. Wave Detail: E 9 ft
at 8 seconds. A chance of showers and tstms.
.SUN...E winds 20 to 25 kt with gusts to 30 kt. Seas 8 to 10 ft.
Wave Detail: E 10 ft at 8 seconds and E 2 ft at 13 seconds. A
chance of tstms. A chance of showers in the morning, then showers
likely in the afternoon.
.SUN NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 9 to
11 ft. Wave Detail: E 10 ft at 8 seconds and E 2 ft at
14 seconds. A chance of tstms. Showers likely.
.MON...E winds 20 to 25 kt with gusts to 30 kt. Seas 9 to 11 ft,
subsiding to 8 to 10 ft in the afternoon. Wave Detail: E 10 ft at
9 seconds and E 2 ft at 14 seconds. Showers likely. A slight
chance of tstms in the afternoon.
.MON NIGHT...E winds 20 to 25 kt with gusts to 30 kt. Seas 8 to
10 ft. A slight chance of tstms in the evening. A chance of
showers.
.TUE...E winds 15 to 20 kt. Seas 7 to 9 ft. A chance of showers.
.TUE NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. A slight chance
of showers.
.WED...E winds 15 to 20 kt. Seas 5 to 7 ft. A slight chance of
showers and tstms.
.WED NIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$