435
FZUS52 KCHS 161521
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1121 AM EDT Mon Sep 16 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

AMZ300-170430-
1121 AM EDT Mon Sep 16 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Potential Tropical Cyclone Eight is expected to move onshore
north of our area tonight into Tuesday, then possibly across the
Mid-Atlantic states by Wednesday.

$$

AMZ330-170430-
Charleston Harbor-
1121 AM EDT Mon Sep 16 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

.REST OF TODAY...NW winds 15 to 20 kt with gusts to 25 kt. Waves
1 to 2 ft. A slight chance of showers.
.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt, becoming SW
5 to 10 kt after midnight.
.TUE...SW winds 5 to 10 kt.
.TUE NIGHT...S winds 5 to 10 kt. A slight chance of showers and
tstms late.
.WED...SW winds 5 kt, becoming S in the afternoon. A slight
chance of showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. A slight chance of showers and
tstms early in the evening.
.THU...NW winds 5 to 10 kt, becoming S in the afternoon. A slight
chance of showers and tstms in the afternoon.
.THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. A
slight chance of showers and tstms early in the evening.
.FRI...NE winds 5 to 10 kt. A slight chance of showers and tstms
in the afternoon.
.FRI NIGHT...NE winds 5 to 10 kt. A slight chance of showers and
tstms until early morning.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 77 degrees.

$$

AMZ350-170430-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1121 AM EDT Mon Sep 16 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Tropical storm conditions possible. NW winds
25 to 30 kt. Occasional wind gusts up to 35 kt across the
northernmost portion of the waters through early this afternoon. Seas
7 to 9 ft, subsiding to 6 to 7 ft late in the afternoon. Wave
Detail: E 9 ft at 10 seconds, subsiding to E 7 ft at 10 seconds in
the afternoon. A chance of showers late this morning, then a
slight chance of showers this afternoon.
.TONIGHT...W winds 20 to 25 kt with gusts to 30 kt, becoming SW
10 to 15 kt after midnight. Seas 5 to 7 ft, subsiding to 4 to
5 ft after midnight. Wave Detail: E 7 ft at 10 seconds and W 3 ft
at 4 seconds.
.TUE...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: E 4 ft at 10 seconds and SW
2 ft at 3 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: E 4 ft at 10 seconds and
SW 2 ft at 3 seconds. A slight chance of showers and tstms after
midnight.
.WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 1 foot at
3 seconds. A slight chance of showers and tstms until late
afternoon.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and S 1 foot at 3 seconds. A slight chance of
showers and tstms.
.THU...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. A slight chance of showers and tstms early in the
morning.
.THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. A slight chance of showers and tstms in the late
evening and early morning.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. A slight chance of showers
and tstms.
.FRI NIGHT...NE 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.

Winds and seas higher in and near tstms.

$$

AMZ352-170430-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1121 AM EDT Mon Sep 16 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...N winds 15 to 20 kt with gusts to 25 kt. Seas
6 to 7 ft, subsiding to 5 to 6 ft this afternoon. Wave Detail: E
7 ft at 10 seconds.
.TONIGHT...NW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: E 6 ft at 10 seconds and NW 2 ft at 3 seconds.
.TUE...SW winds 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in
the afternoon. Wave Detail: E 5 ft at 10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: E 4 ft at 10 seconds. A
slight chance of showers and tstms after midnight.
.WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of
showers and tstms until late afternoon.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds. A slight chance of showers and tstms.
.THU...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. A slight chance of showers and tstms early in the
morning.
.THU NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 to
3 ft.
.FRI...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 3 ft. A slight chance of showers and tstms in the afternoon.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-170430-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1121 AM EDT Mon Sep 16 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...N winds 15 to 20 kt. Seas 6 to 7 ft, subsiding
to 5 to 6 ft this afternoon. Wave Detail: E 7 ft at 10 seconds.
.TONIGHT...NW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: E 6 ft at 10 seconds.
.TUE...W winds 5 to 10 kt, becoming S in the afternoon. Seas 4 to
5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: E
5 ft at 10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: E 4 ft at 10 seconds. A
slight chance of showers and tstms after midnight.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds. A slight chance of
showers and tstms until late afternoon.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds. A slight chance of showers and tstms.
.THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. A slight chance of showers and tstms early in the morning.
.THU NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 to
3 ft.
.FRI...N winds 10 kt, becoming NE in the afternoon. Seas 2 to
3 ft. A slight chance of showers and tstms in the afternoon.
.FRI NIGHT...NE winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-170430-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1121 AM EDT Mon Sep 16 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

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

Winds and seas higher in and near tstms.

$$