Coastal Waters Forecast
Issued by NWS Charleston, SC

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197
FZUS52 KCHS 221922
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
322 PM EDT Sun Sep 22 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

AMZ300-230815-
322 PM EDT Sun Sep 22 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will linger across the region through early week
this week. Later this week, a tropical cyclone is forecast to
move generally northward across the Gulf of Mexico, then possibly
tracking inland across portions of the Deep South or Southeast
U.S. late this week.

$$

AMZ330-230815-
Charleston Harbor-
322 PM EDT Sun Sep 22 2024

.TONIGHT...S winds 10 kt, becoming SW late this evening.
.MON...S winds 5 to 10 kt.
.MON NIGHT...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 kt, increasing to 10 kt in the afternoon.
.WED NIGHT...E winds 5 to 10 kt. A slight chance of showers and
tstms.
.THU...E winds 10 to 15 kt. A chance of showers with a slight
chance of tstms.
.THU NIGHT...SE winds 15 kt. Showers likely with a slight chance
of tstms.
.FRI...S winds 15 kt. Showers likely with a slight chance of
tstms.
.FRI NIGHT...S winds 10 to 15 kt. A chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 79 degrees.

$$

AMZ350-230815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
322 PM EDT Sun Sep 22 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds.
.MON...W winds 5 kt, becoming S in the afternoon. Seas 2 ft. Wave
Detail: E 2 ft at 9 seconds.
.MON NIGHT...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. A slight chance of showers.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 11 seconds and S 1 foot at 3 seconds.
.WED...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 NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. A slight chance of showers and tstms.
.THU...E winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely
with a slight chance of tstms.
.FRI...S winds 20 to 25 kt. Seas 6 to 8 ft. A chance of showers
with a slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt. Seas 5 to 7 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ352-230815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
322 PM EDT Sun Sep 22 2024

.TONIGHT...S winds 5 to 10 kt, becoming SW late. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 10 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
9 seconds.
.MON NIGHT...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 to 3 ft. Wave Detail: E 2 ft at
10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and S 1 foot at 3 seconds.
.WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 2 ft at 11 seconds.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. A slight
chance of showers and tstms.
.THU...E winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely
with a slight chance of tstms.
.FRI...S winds 20 to 25 kt. Seas 7 to 9 ft. Showers likely with a
slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt. Seas 5 to 7 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ354-230815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
322 PM EDT Sun Sep 22 2024

.TONIGHT...S winds 5 to 10 kt, becoming SW late. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 10 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
9 seconds.
.MON NIGHT...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 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 11 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. A slight chance of tstms. A slight chance of showers in
the evening, then a chance of showers after midnight.
.THU...SE winds 15 to 20 kt. Seas 5 to 7 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SE winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely
with a slight chance of tstms.
.FRI...S winds 20 to 25 kt. Seas 6 to 8 ft. Showers likely with a
slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ374-230815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
322 PM EDT Sun Sep 22 2024

.TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
3 to 4 ft. Wave Detail: E 4 ft at 10 seconds.
.MON...SW winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.MON NIGHT...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 11 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
2 ft at 4 seconds.
.WED NIGHT...SE winds 15 to 20 kt. Seas 4 to 5 ft, building to
4 to 6 ft after midnight. A slight chance of tstms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.THU...SE winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SE winds 20 to 25 kt. Seas 8 to 10 ft. Showers
likely with a slight chance of tstms.
.FRI...S winds 20 to 25 kt. Seas 8 to 10 ft. Showers likely with
a slight chance of tstms.
.FRI NIGHT...S winds 15 to 20 kt. Seas 6 to 8 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$