Coastal Waters Forecast
Issued by NWS Charleston, SC

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692
FZUS52 KCHS 101024
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
524 AM EST Fri Jan 10 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

AMZ300-102315-
524 AM EST Fri Jan 10 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A low pressure system will approach the region today, tracking
towards the northeast across the region tonight into tomorrow
morning. High pressure will then build into the region and
prevail into the middle of next week.

$$

AMZ330-102315-
Charleston Harbor-
524 AM EST Fri Jan 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

.TODAY...NE winds 10 kt this morning, becoming E to 5 to 10 kt
this afternoon. A chance of rain and snow late this morning. A
chance of rain this afternoon.
.TONIGHT...E winds 10 to 15 kt, becoming SW 15 to 20 kt with
gusts to 25 kt after midnight. Waves 1 to 2 ft. Rain.
.SAT...W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
A chance of rain in the morning.
.SAT NIGHT...NW winds 10 kt.
.SUN...NE winds 5 to 10 kt.
.SUN NIGHT...NW winds 5 kt.
.MON...W winds 5 to 10 kt. A slight chance of showers.
.MON NIGHT...W winds 10 kt.
.TUE...NW winds 10 kt.
.TUE NIGHT...NW winds 10 to 15 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 50 degrees.

$$

AMZ350-102315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
524 AM EST Fri Jan 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
MORNING...

.TODAY...N winds 10 to 15 kt with gusts to 20 kt, becoming NE 5
to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 6
seconds. A slight chance of rain late this morning. A chance of
rain this afternoon.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt, becoming SW
25 to 30 kt with gusts to 35 kt after midnight. Seas 2 to 3 ft,
building to 5 to 7 ft after midnight. Wave Detail: SE 3 ft at 4
seconds and NE 2 ft at 7 seconds, becoming S 7 ft at 7 seconds and
E 1 foot at 10 seconds. Rain.
.SAT...W winds 25 to 30 kt, becoming NW 15 to 20 kt with gusts to
25 kt in the afternoon. Seas 6 to 8 ft, subsiding to 4 to 6 ft in
the afternoon. Wave Detail: S 8 ft at 8 seconds and S 8 ft at
10 seconds, becoming SW 6 ft at 8 seconds and E 6 ft at
10 seconds. A chance of rain in the morning.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: W 4 ft at 7 seconds and E
1 foot at 10 seconds, becoming NW 3 ft at 6 seconds and E 1 foot
at 7 seconds.
.SUN...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
5 seconds and N 1 foot at 5 seconds.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 5 seconds and NE 1 foot at 6 seconds.
.MON...W winds 5 to 10 kt. Seas 2 ft. A slight chance of showers.
.MON NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.TUE...NW winds 10 to 15 kt. Seas 2 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft.

$$

AMZ352-102315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
524 AM EST Fri Jan 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
SATURDAY MORNING...

.TODAY...NE winds 10 to 15 kt with gusts to 20 kt, becoming E
late. Seas 2 ft. Wave Detail: NE 2 ft at 7 seconds. A slight
chance of rain late.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt, becoming SW
20 to 25 kt with gusts to 30 kt after midnight. Seas 3 to 4 ft,
building to 5 to 7 ft after midnight. Wave Detail: SE 4 ft at 4
seconds and NE 2 ft at 7 seconds, becoming S 7 ft at 7 seconds and
E 1 foot at 9 seconds. Rain.
.SAT...W winds 20 to 25 kt with gusts to 30 kt, becoming NW 15 to
20 kt with gusts to 25 kt in the afternoon. Seas 5 to 7 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 7 ft at 8
seconds and E 5 ft at 9 seconds, becoming W 5 ft at 6 seconds and
E 3 ft at 10 seconds. A chance of rain in the morning.
.SAT NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 ft after midnight. Wave Detail: NW 4 ft at 5 seconds and E
1 foot at 10 seconds, becoming NW 2 ft at 4 seconds and NE 1 foot
at 9 seconds.
.SUN...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 5 seconds.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 3 seconds and NE 1 foot at 5 seconds.
.MON...NW winds 5 to 10 kt. Seas 2 ft. A chance of showers.
.MON NIGHT...NW winds 10 to 15 kt. Seas 2 ft.
.TUE...NW winds 10 to 15 kt. Seas 2 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft.

$$

AMZ354-102315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
524 AM EST Fri Jan 10 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
SATURDAY MORNING...

.TODAY...NE winds 10 to 15 kt, becoming E late. Seas 2 ft. Wave
Detail: NE 2 ft at 8 seconds.
.TONIGHT...S winds 15 to 20 kt, becoming SW 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 4 seconds and NE 2 ft at 8 seconds,
becoming S 6 ft at 7 seconds and E 2 ft at 9 seconds. A chance of
rain in the evening, then rain after midnight.
.SAT...W winds 15 to 20 kt with gusts to 30 kt. Seas 4 to 5 ft,
subsiding to 3 to 4 ft in the afternoon. Wave Detail: SW 5 ft at
7 seconds and SE 4 ft at 8 seconds, becoming W 3 ft at 4 seconds
and SE 3 ft at 7 seconds. A chance of rain in the morning.
.SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
NW 3 ft at 4 seconds and E 2 ft at 10 seconds.
.SUN...N winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NW 2 ft
at 4 seconds and NE 1 foot at 9 seconds, becoming NW 1 foot at
3 seconds and NE 1 foot at 6 seconds.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: N 1 foot at 6 seconds. A slight chance of showers after
midnight.
.MON...NW winds 5 to 10 kt. Seas 1 foot or less. A chance of
showers.
.MON NIGHT...NW winds 10 to 15 kt. Seas 2 ft.
.TUE...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.

$$

AMZ374-102315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
524 AM EST Fri Jan 10 2025

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH SATURDAY
MORNING...

.TODAY...NE winds 10 to 15 kt, becoming SE late. Seas 3 to 4 ft,
subsiding to 2 to 3 ft this afternoon. Wave Detail: NE 4 ft at
8 seconds, becoming NE 3 ft at 8 seconds.
.TONIGHT...S winds 25 to 30 kt, becoming SW with gusts to 35 kt
after midnight. Seas 4 to 6 ft, building to 7 to 9 ft after
midnight. Wave Detail: S 6 ft at 5 seconds and NE 3 ft at 8
seconds, becoming S 9 ft at 7 seconds and E 2 ft at 9 seconds. A
chance of rain in the evening, then rain after midnight.
.SAT...W winds 25 to 30 kt with gusts to 35 kt, becoming NW 20 to
25 kt in the afternoon. Seas 6 to 8 ft, subsiding to 5 to 7 ft in
the afternoon. Wave Detail: SW 8 ft at 7 seconds and E 2 ft at 10
seconds, becoming W 6 ft at 6 seconds and E 2 ft at 10 seconds. A
chance of rain in the morning.
.SAT NIGHT...NW winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Seas 4 to 5 ft, subsiding to 2 to 3 ft after midnight.
Wave Detail: NW 4 ft at 5 seconds and E 1 foot at 10 seconds,
becoming NW 3 ft at 5 seconds and E 1 foot at 10 seconds.
.SUN...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: NW 2 ft at
4 seconds and NE 1 foot at 10 seconds.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NW
1 foot at 3 seconds and E 1 foot at 13 seconds. A slight chance
of showers after midnight.
.MON...NW winds 10 kt. Seas 2 ft. A chance of showers.
.MON NIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft.
.TUE...NW winds 15 to 20 kt. Seas 3 to 4 ft.
.TUE NIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft.

$$