FZUS52 KCHS 290656
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
256 AM EDT Thu May 29 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
AMZ300-291915-
256 AM EDT Thu May 29 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A strong upper disturbance will move through this afternoon and
evening, then a cold front will sweep through late Friday. High
pressure will build in over the weekend into early next week.
$$
AMZ330-291915-
Charleston Harbor-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. A slight chance of
showers and tstms early this afternoon. A chance of showers and
tstms late.
.TONIGHT...SW winds 5 to 10 kt. Showers likely with a chance of
tstms in the evening, then a chance of showers with a slight
chance of tstms after midnight.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Waves 1 to 2 ft. A chance of showers in the morning,
then showers likely with a chance of tstms in the afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. A chance
of tstms. Showers likely, mainly in the evening.
.SAT...W winds 10 to 15 kt.
.SAT NIGHT...W winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight.
.SUN...W winds 5 to 10 kt.
.SUN NIGHT...SW winds 5 to 10 kt.
.MON...W winds 5 to 10 kt. A slight chance of showers and tstms.
.MON NIGHT...E winds 5 to 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-291915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft.
Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and
tstms early this afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 ft, building to 4 to 5 ft in the afternoon.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds,
becoming SW 4 ft at 5 seconds and E 2 ft at 8 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...SW winds 15 to 20 kt, becoming W after midnight.
Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at
8 seconds. Showers likely with a chance of tstms.
.SAT...W winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft,
subsiding to 2 to 3 ft in the afternoon. Wave Detail: W 4 ft at
6 seconds and SE 1 foot at 8 seconds, becoming SW 3 ft at
6 seconds and SE 1 foot at 8 seconds. A slight chance of showers
in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.MON...SW winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.MON NIGHT...SE winds 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-291915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
256 AM EDT Thu May 29 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds. A slight chance of showers and tstms early this
afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SE 3 ft at 8 seconds,
becoming SW 3 ft at 5 seconds and SE 3 ft at 8 seconds. A chance
of showers in the morning, then showers likely with a chance of
tstms in the afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds.
Showers likely with a chance of tstms.
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: NW 3 ft at 4 seconds and SE
2 ft at 8 seconds, becoming W 2 ft at 4 seconds and SE 1 foot at
8 seconds. A slight chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: W 2 ft
at 4 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft.
.MON...SW winds 5 kt. Seas 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ354-291915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 8 seconds. A slight chance of showers and
tstms early this afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers after midnight.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A chance of showers in the
morning, then showers likely with a chance of tstms in the
afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
Showers likely with a chance of tstms.
.SAT...NW winds 15 to 20 kt, becoming W 10 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at
8 seconds. A slight chance of showers and tstms in the morning.
.SAT NIGHT...W winds 10 kt. Seas 2 ft. Wave Detail: W 2 ft at
3 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...W winds 5 to 10 kt. Seas 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-291915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms early this
morning. A slight chance of showers and tstms early this
afternoon, then a chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. A
chance of showers with a slight chance of tstms in the morning,
then showers likely with a chance of tstms in the afternoon.
.FRI NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at
8 seconds. Showers with a chance of tstms.
.SAT...NW winds 15 to 20 kt, becoming W 10 to 15 kt in the
afternoon. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 2 ft at
8 seconds, becoming W 3 ft at 5 seconds and SE 1 foot at
8 seconds. A chance of showers with a slight chance of tstms in
the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W
2 ft at 4 seconds and SE 2 ft at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...W winds 5 kt. Seas 2 ft. A slight chance of showers and
tstms.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
256 AM EDT Thu May 29 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
AMZ300-291915-
256 AM EDT Thu May 29 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A strong upper disturbance will move through this afternoon and
evening, then a cold front will sweep through late Friday. High
pressure will build in over the weekend into early next week.
$$
AMZ330-291915-
Charleston Harbor-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. A slight chance of
showers and tstms early this afternoon. A chance of showers and
tstms late.
.TONIGHT...SW winds 5 to 10 kt. Showers likely with a chance of
tstms in the evening, then a chance of showers with a slight
chance of tstms after midnight.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Waves 1 to 2 ft. A chance of showers in the morning,
then showers likely with a chance of tstms in the afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. A chance
of tstms. Showers likely, mainly in the evening.
.SAT...W winds 10 to 15 kt.
.SAT NIGHT...W winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight.
.SUN...W winds 5 to 10 kt.
.SUN NIGHT...SW winds 5 to 10 kt.
.MON...W winds 5 to 10 kt. A slight chance of showers and tstms.
.MON NIGHT...E winds 5 to 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-291915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft.
Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and
tstms early this afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 ft, building to 4 to 5 ft in the afternoon.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds,
becoming SW 4 ft at 5 seconds and E 2 ft at 8 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...SW winds 15 to 20 kt, becoming W after midnight.
Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at
8 seconds. Showers likely with a chance of tstms.
.SAT...W winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft,
subsiding to 2 to 3 ft in the afternoon. Wave Detail: W 4 ft at
6 seconds and SE 1 foot at 8 seconds, becoming SW 3 ft at
6 seconds and SE 1 foot at 8 seconds. A slight chance of showers
in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.MON...SW winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.MON NIGHT...SE winds 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-291915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
256 AM EDT Thu May 29 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds. A slight chance of showers and tstms early this
afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SE 3 ft at 8 seconds,
becoming SW 3 ft at 5 seconds and SE 3 ft at 8 seconds. A chance
of showers in the morning, then showers likely with a chance of
tstms in the afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds.
Showers likely with a chance of tstms.
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: NW 3 ft at 4 seconds and SE
2 ft at 8 seconds, becoming W 2 ft at 4 seconds and SE 1 foot at
8 seconds. A slight chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: W 2 ft
at 4 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft.
.MON...SW winds 5 kt. Seas 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ354-291915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 8 seconds. A slight chance of showers and
tstms early this afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers after midnight.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A chance of showers in the
morning, then showers likely with a chance of tstms in the
afternoon.
.FRI NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
Showers likely with a chance of tstms.
.SAT...NW winds 15 to 20 kt, becoming W 10 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at
8 seconds. A slight chance of showers and tstms in the morning.
.SAT NIGHT...W winds 10 kt. Seas 2 ft. Wave Detail: W 2 ft at
3 seconds and SE 1 foot at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...W winds 5 to 10 kt. Seas 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-291915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
256 AM EDT Thu May 29 2025
.TODAY...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms early this
morning. A slight chance of showers and tstms early this
afternoon, then a chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 8 seconds. Showers likely with a chance of tstms in the
evening, then a chance of showers with a slight chance of tstms
after midnight.
.FRI...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds. A
chance of showers with a slight chance of tstms in the morning,
then showers likely with a chance of tstms in the afternoon.
.FRI NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at
8 seconds. Showers with a chance of tstms.
.SAT...NW winds 15 to 20 kt, becoming W 10 to 15 kt in the
afternoon. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 2 ft at
8 seconds, becoming W 3 ft at 5 seconds and SE 1 foot at
8 seconds. A chance of showers with a slight chance of tstms in
the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W
2 ft at 4 seconds and SE 2 ft at 8 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...W winds 5 kt. Seas 2 ft. A slight chance of showers and
tstms.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
Winds and seas higher in and near tstms.
$$