335
FZUS52 KCHS 241453
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1053 AM EDT Tue Sep 24 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

AMZ300-250315-
1053 AM EDT Tue Sep 24 2024

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

$$

AMZ330-250315-
Charleston Harbor-
1053 AM EDT Tue Sep 24 2024

.REST OF TODAY...S winds 5 to 10 kt.
.TONIGHT...S winds 5 to 10 kt.
.WED...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon.
.WED NIGHT...SE winds 10 to 15 kt.
.THU...E winds 10 to 15 kt with gusts to 20 kt, increasing to
20 to 25 kt with gusts to 30 kt in the afternoon. Waves 2 to
3 ft. A slight chance of tstms. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.THU NIGHT...SE winds 25 to 30 kt. Waves 2 to 4 ft. Showers with
a slight chance of tstms.
.FRI...S winds 20 to 25 kt with gusts to 35 kt. Waves 2 to 3 ft.
A slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 5 to 10 kt after
midnight. Waves 1 to 2 ft. A slight chance of showers and tstms
until early morning.
.SAT...SW winds 5 to 10 kt. A slight chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. 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.

$$

AMZ350-250315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1053 AM EDT Tue Sep 24 2024

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail:
E 3 ft at 10 seconds.
.TONIGHT...S 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 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and
S 2 ft at 4 seconds.
.WED NIGHT...SE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 6 seconds and E 2 ft at 10 seconds. A slight chance of showers
and tstms late.
.THU...SE winds 15 to 20 kt with gusts to 25 kt, increasing to
25 to 30 kt in the afternoon. Seas 4 to 6 ft, building to 5 to
7 ft in the afternoon. Wave Detail: SE 7 ft at 7 seconds and E
2 ft at 10 seconds. A slight chance of tstms. A slight chance of
showers in the morning, then a chance of showers in the
afternoon.
.THU NIGHT...SE winds 25 to 30 kt. Seas 8 to 10 ft, building to
10 to 14 ft after midnight. Wave Detail: SE 12 ft at 9 seconds. A
slight chance of tstms. A chance of showers early in the evening,
then showers in the late evening and overnight.
.FRI...S winds 25 to 30 kt. Seas 9 to 11 ft, subsiding to 6 to
8 ft in the afternoon. A slight chance of tstms.
.FRI NIGHT...S winds 20 to 25 kt, becoming SW 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
A slight chance of showers and tstms.
.SAT...SW winds 10 kt. Seas 3 to 4 ft. A slight chance of tstms
early in the morning. A slight chance of showers.
.SAT NIGHT...SW winds 10 kt, becoming NW after midnight. Seas
2 to 3 ft. A slight chance of showers in the evening, then a
chance of showers after midnight.

Winds and seas higher in and near tstms.

$$

AMZ352-250315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1053 AM EDT Tue Sep 24 2024

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2
ft at 10 seconds and S 1 foot at 3 seconds.
.TONIGHT...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 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and
E 2 ft at 10 seconds.
.WED NIGHT...SE winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft,
building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft at
6 seconds and E 2 ft at 10 seconds. A chance of showers with a
slight chance of tstms after midnight.
.THU...SE winds 15 to 20 kt with gusts to 25 kt, increasing to
25 to 30 kt in the afternoon. Seas 5 to 7 ft, building to 7 to
9 ft in the afternoon. Wave Detail: SE 8 ft at 7 seconds and E
1 foot at 10 seconds. A slight chance of tstms. A chance of
showers in the morning, then showers likely in the afternoon.
.THU NIGHT...Tropical storm conditions possible.
.FRI...S winds 25 to 30 kt. Seas 8 to 10 ft, subsiding to 5 to
7 ft in the afternoon. A slight chance of tstms.
.FRI NIGHT...S winds 20 to 25 kt, becoming SW 10 to 15 kt after
midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.
A slight chance of showers and tstms.
.SAT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of tstms
early in the morning. A slight chance of showers.
.SAT NIGHT...SW winds 10 kt, becoming W after midnight. Seas 2 to
3 ft. A slight chance of showers in the evening, then a chance of
showers after midnight.

Winds and seas higher in and near tstms.

$$

AMZ354-250315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1053 AM EDT Tue Sep 24 2024

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
2 ft at 9 seconds and S 1 foot at 3 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 3 seconds and E 2 ft at 10 seconds.
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 5 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
and tstms late in the evening. A chance of showers with a slight
chance of tstms after midnight.
.THU...SE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 5 to 7 ft, building to 7 to 9 ft in the
afternoon. Wave Detail: SE 8 ft at 7 seconds and E 1 foot at
10 seconds. A slight chance of tstms. Showers.
.THU NIGHT...Tropical storm conditions possible.
.FRI...S winds 25 to 30 kt. Seas 6 to 8 ft, subsiding to 4 to
6 ft in the afternoon. A slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight.
A slight chance of showers and tstms early in the evening. A
slight chance of showers and tstms after midnight.
.SAT...W winds 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. A slight chance of tstms early in the morning. A slight
chance of showers.
.SAT NIGHT...S winds 10 kt, becoming W after midnight. Seas 2 ft.
A chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ374-250315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1053 AM EDT Tue Sep 24 2024

.REST OF TODAY...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: E 3 ft at 10 seconds.
.TONIGHT...SE winds 5 to 10 kt. 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 6 ft
at 6 seconds and E 3 ft at 10 seconds. A slight chance of tstms.
A slight chance of showers in the evening, then a chance of
showers after midnight.
.THU...SE winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. Seas 7 to 9 ft, building to 9 to 11 ft in the
afternoon. Wave Detail: SE 9 ft at 8 seconds and E 2 ft at
10 seconds. A slight chance of tstms. Showers likely.
.THU NIGHT...Tropical storm conditions possible.
.FRI...S winds 25 to 30 kt. Seas 9 to 11 ft, subsiding to 6 to
8 ft in the afternoon. A slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
A slight chance of tstms. A slight chance of showers in the
evening, then a chance of showers after midnight.
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
tstms early in the morning. A chance of showers.
.SAT NIGHT...S winds 10 kt, becoming W after midnight. Seas 2 to
3 ft. A chance of showers.

Winds and seas higher in and near tstms.

$$