209
FZUS52 KCHS 231943
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
343 PM EDT Mon Sep 23 2024

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

AMZ300-240815-
343 PM EDT Mon Sep 23 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will linger across the region until mid week. A
tropical cyclone is forecast to move generally northward across
the Gulf of Mexico, then track inland across portions of Florida,
Georgia, and possibly South Carolina. Refer to the latest
advisory on PTC9 issued by the National Hurricane Center.

$$

AMZ330-240815-
Charleston Harbor-
343 PM EDT Mon Sep 23 2024

.TONIGHT...S winds 5 to 10 kt.
.TUE...S winds 5 to 10 kt.
.TUE NIGHT...SE winds 5 to 10 kt.
.WED...SE winds 5 to 10 kt.
.WED NIGHT...E winds 10 kt.
.THU...E 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
morning. A chance of showers in the afternoon. A slight chance of
tstms late.
.THU NIGHT...SE winds 15 to 20 kt, increasing to 25 to 30 kt
after midnight. Waves 2 to 4 ft. A slight chance of tstms.
Showers.
.FRI...S winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
A slight chance of tstms. Showers likely until late afternoon,
then a chance of showers late.
.FRI NIGHT...S winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight. A chance of showers early in the
evening. A slight chance of tstms until early morning. A slight
chance of showers in the late evening and overnight.
.SAT...SW winds 5 to 10 kt. A slight chance of showers.
.SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. A
slight chance of tstms until early morning. A slight chance of
showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 80 degrees.

$$

AMZ350-240815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
343 PM EDT Mon Sep 23 2024

.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
10 seconds.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 11 seconds and S 2 ft at 4 seconds.
.WED...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 ft. Wave Detail: E 3 ft at 11 seconds and S
2 ft at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and E
2 ft at 10 seconds.
.THU...E winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 4 to 5 ft, building to 5 to 7 ft in the
afternoon. Wave Detail: SE 7 ft at 6 seconds and E 2 ft at
10 seconds. A slight chance of showers in the morning, then a
chance of showers with a slight chance of tstms in the afternoon.
.THU NIGHT...Tropical storm conditions possible.
.FRI...S winds 20 to 25 kt with gusts to 35 kt, diminishing to
15 to 20 kt with gusts to 25 kt in the afternoon. Seas 9 to
11 ft, subsiding to 7 to 9 ft in the afternoon. A slight chance
of tstms. Showers likely until late afternoon, then a chance of
showers late.
.FRI NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 5 to 7 ft, subsiding to 4 to 6 ft after
midnight. A chance of showers with a slight chance of tstms until
early morning, then a chance of showers late.
.SAT...SW winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. A chance of showers until late afternoon.
A slight chance of tstms in the afternoon. A slight chance of
showers late.
.SAT NIGHT...S winds 10 kt, becoming W after midnight. Seas 3 to
4 ft. A slight chance of tstms until early morning. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ352-240815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
343 PM EDT Mon Sep 23 2024

.TONIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
9 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
10 seconds.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and S 2 ft at 4 seconds.
.WED...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 4 seconds and E 2 ft at 10 seconds.
.WED NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 5 seconds and E 2 ft at 10 seconds. A slight chance of showers
after midnight.
.THU...Tropical storm conditions possible. A chance of showers
until late afternoon. A slight chance of tstms in the afternoon.
Showers likely late.
.THU NIGHT...Tropical storm conditions possible.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight.
A chance of showers with a slight chance of tstms until early
morning, then a chance of showers late.
.SAT...W winds 10 kt, becoming S in the afternoon. Seas 3 to
4 ft. A chance of showers until late afternoon. A slight chance
of tstms in the afternoon. A slight chance of showers late.
.SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. A slight chance of tstms until early morning. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ354-240815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
343 PM EDT Mon Sep 23 2024

.TONIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and SE 2 ft at 3 seconds.
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 2 ft
at 4 seconds and E 2 ft at 10 seconds.
.WED NIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 5 ft
at 6 seconds and E 2 ft at 10 seconds. A slight chance of showers
after midnight.
.THU...Tropical storm conditions possible. A chance of showers in
the morning. A slight chance of tstms in the late morning and
afternoon. Showers in the afternoon.
.THU NIGHT...Tropical storm conditions possible.
.FRI...Tropical storm conditions possible.
.FRI NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to
3 to 4 ft after midnight. A chance of showers with a slight
chance of tstms.
.SAT...W winds 10 kt, becoming S in the afternoon. Seas 3 to
4 ft, subsiding to 2 to 3 ft in the afternoon. A chance of
showers until late afternoon. A slight chance of tstms in the
afternoon. A slight chance of showers late.
.SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. A slight chance of tstms until early morning. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ374-240815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
343 PM EDT Mon Sep 23 2024

.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.TUE...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
10 seconds.
.TUE NIGHT...SE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and
SE 2 ft at 3 seconds.
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to
5 ft in the afternoon. Wave Detail: E 4 ft at 11 seconds and SE
3 ft at 5 seconds.
.WED NIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. Wave Detail: SE 5 ft
at 6 seconds and E 3 ft at 10 seconds. A slight chance of showers
after midnight.
.THU...Tropical storm conditions possible.
.THU NIGHT...Tropical storm conditions possible.
.FRI...S winds 20 to 25 kt with gusts to 35 kt, diminishing to
15 to 20 kt with gusts to 25 kt in the afternoon. Seas 10 to
14 ft, subsiding to 7 to 9 ft in the afternoon. A slight chance
of tstms. Showers likely until late afternoon, then a chance of
showers late.
.FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft, subsiding to
4 to 6 ft after midnight. A chance of showers with a slight
chance of tstms until early morning, then a chance of showers
late.
.SAT...W winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft
in the afternoon. A chance of showers until late afternoon. A
slight chance of tstms in the afternoon. A slight chance of
showers late.
.SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
3 to 4 ft. A slight chance of tstms until early morning. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$