397
FZUS52 KCHS 231549
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1149 AM 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

AMZ300-240415-
1149 AM 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 forecasted to move northward across the Gulf
of Mexico, then track inland across portions of the Southeast U.S.
later this week. Refer to the latest advisory on PTC9 issued by
the National Hurricane Center.

$$

AMZ330-240415-
Charleston Harbor-
1149 AM EDT Mon Sep 23 2024

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

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 80 degrees.

$$

AMZ350-240415-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1149 AM EDT Mon Sep 23 2024

.REST OF TODAY...SW winds 5 kt, becoming S this afternoon. Seas
2 ft. Wave Detail: E 2 ft at 9 seconds.
.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...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...E winds 10 to 15 kt. 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 with gusts
to 30 kt in the afternoon. Seas 4 to 5 ft, building to 4 to 6 ft
in the afternoon. 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 35 kt. Seas 6 to 8 ft, building to
8 to 10 ft after midnight. A chance of showers with a slight
chance of tstms.
.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 8 to
10 ft, subsiding to 6 to 8 ft in the afternoon. A chance of
showers with a slight chance of tstms.
.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 6 ft after midnight.
A chance of showers with a slight chance of tstms until early
morning, then a chance of showers late.

Winds and seas higher in and near tstms.

$$

AMZ352-240415-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1149 AM EDT Mon Sep 23 2024

.REST OF TODAY...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
2 ft at 9 seconds.
.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...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 2 ft at 10 seconds.
.WED...SE winds 5 to 10 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 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 5 seconds and E 2 ft at 10 seconds. A slight chance of
showers and tstms after midnight.
.THU...E winds 15 to 20 kt with gusts to 25 kt, increasing to
20 to 25 kt with gusts to 35 kt in the afternoon. Seas 4 to 5 ft,
building to 6 to 8 ft in the afternoon. A slight chance of tstms.
A chance of showers.
.THU NIGHT...SE winds 25 to 35 kt, becoming S 30 to 40 kt after
midnight. Seas 7 to 9 ft, building to 9 to 11 ft after midnight.
A chance of showers with a slight chance of tstms.
.FRI...S winds 25 to 35 kt with gusts to 45 kt, diminishing to
15 to 20 kt with gusts to 25 kt in the afternoon. Seas 7 to 9 ft,
subsiding to 6 to 8 ft in the afternoon. A chance of showers with
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 chance of showers with a slight chance of tstms until early
morning, then a chance of showers late.

Winds and seas higher in and near tstms.

$$

AMZ354-240415-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1149 AM EDT Mon Sep 23 2024

.REST OF TODAY...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
2 ft at 9 seconds.
.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 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.TUE NIGHT...SE winds 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 2 to 3 ft. Wave Detail: SE 2 ft
at 4 seconds and E 2 ft at 10 seconds.
.WED NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. 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 and tstms after midnight.
.THU...SE winds 20 to 25 kt, increasing to 25 to 35 kt with gusts
to 45 kt in the afternoon. Seas 4 to 6 ft, building to 6 to 8 ft
in the afternoon. A slight chance of tstms. A chance of showers.
.THU NIGHT...S winds 35 to 45 kt with gusts to 60 kt. Seas 8 to
10 ft. A chance of showers with a slight chance of tstms.
.FRI...S winds 25 to 35 kt with gusts to 45 kt, diminishing to
15 to 20 kt with gusts to 25 kt in the afternoon. Seas 7 to 9 ft,
subsiding to 5 to 7 ft in the afternoon. A chance of showers with
a slight chance of tstms.
.FRI NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 4 to
6 ft, subsiding to 3 to 4 ft after midnight. A chance of showers
with a slight chance of tstms until early morning, then a chance
of showers late.

Winds and seas higher in and near tstms.

$$

AMZ374-240415-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1149 AM EDT Mon Sep 23 2024

.REST OF TODAY...SW winds 5 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.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 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. 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
5 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 5 ft
at 6 seconds and E 3 ft at 10 seconds. A slight chance of showers
and tstms after midnight.
.THU...SE winds 20 to 25 kt, increasing to 25 to 35 kt in the
afternoon. Seas 6 to 8 ft, building to 8 to 10 ft in the
afternoon. A slight chance of tstms. A chance of showers.
.THU NIGHT...S winds 30 to 40 kt with gusts to 50 kt. Seas 9 to
11 ft, building to 10 to 11 ft after midnight. A chance of
showers with a slight chance of tstms.
.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 chance of
showers with a slight chance of tstms.
.FRI NIGHT...S winds 10 to 15 kt with gusts to 20 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.

Winds and seas higher in and near tstms.

$$