044
FZUS52 KCHS 010559
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
159 AM EDT Mon Sep 1 2025

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

AMZ300-011800-
159 AM EDT Mon Sep 1 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the area through late week. A
cold front will approach from the northwest late in the weekend.

$$

AMZ330-011800-
Charleston Harbor-
159 AM EDT Mon Sep 1 2025

.REST OF TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt.
.MON...NE winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NE winds 10 to 15 kt.
.TUE...NE winds 10 to 15 kt. A slight chance of showers and tstms
in the afternoon.
.TUE NIGHT...NE winds 5 to 10 kt. A slight chance of showers and
tstms in the evening.
.WED...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. A slight chance of showers and tstms in the afternoon.
.WED NIGHT...E winds 10 to 15 kt, diminishing to 5 kt after
midnight. A slight chance of showers and tstms in the evening.
.THU...E winds 10 to 15 kt. A slight chance of showers and tstms.
.THU NIGHT...S winds 10 to 15 kt.
.FRI...SW winds 10 to 15 kt.
.FRI NIGHT...S winds 5 to 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 82 degrees.

$$

AMZ350-011800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
159 AM EDT Mon Sep 1 2025

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

.REST OF TONIGHT...NE winds 20 to 25 kt. Seas 6 to 7 ft. Wave
Detail: E 6 ft at 8 seconds and NE 4 ft at 5 seconds. A slight
chance of showers and tstms.
.MON...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 5 to 7 ft, subsiding to 5 to 6 ft in the
afternoon. Wave Detail: E 6 ft at 8 seconds.
.MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
6 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft
at 8 seconds, becoming E 5 ft at 8 seconds. A slight chance of
showers and tstms after midnight.
.TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds. A slight chance of showers and tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: E 4 ft at 7 seconds,
becoming E 4 ft at 8 seconds. A slight chance of showers and
tstms.
.WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. A slight chance of showers and tstms.
.WED NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. A slight chance of showers and tstms.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-011800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
159 AM EDT Mon Sep 1 2025

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

.REST OF TONIGHT...NE winds 20 kt with gusts to 25 kt. Seas 5 to
7 ft. Wave Detail: NE 5 ft at 5 seconds. A slight chance of
showers and tstms.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
building to 5 to 6 ft in the afternoon. Wave Detail: E 6 ft at
6 seconds, becoming E 6 ft at 8 seconds.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: E 5 ft at 8 seconds.
.TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds. A slight chance of showers and tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds. A slight chance of showers and tstms.
.WED...NE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms in the morning,
then a chance of showers and tstms in the afternoon.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms, mainly in the evening.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-011800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
159 AM EDT Mon Sep 1 2025

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

.REST OF TONIGHT...NE winds 20 to 25 kt. Seas 6 to 7 ft. Wave
Detail: NE 5 ft at 5 seconds. A slight chance of showers and
tstms.
.MON...NE winds 20 to 25 kt. Seas 5 to 7 ft, subsiding to 5 to
6 ft in the afternoon. Wave Detail: NE 5 ft at 6 seconds,
becoming NE 6 ft at 7 seconds. A slight chance of showers in the
afternoon.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 8 seconds. A slight chance of showers and tstms in the
evening.
.TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds. A slight chance of showers and tstms in the
morning, then a chance of showers and tstms in the afternoon.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: E 5 ft at 8 seconds,
becoming E 4 ft at 7 seconds. A chance of showers and tstms,
mainly in the evening.
.WED...NE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
7 seconds. A slight chance of showers and tstms in the morning,
then a chance of showers and tstms in the afternoon.
.WED NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 3 ft. A chance of showers and tstms, mainly in the
evening.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...W winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-011800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
159 AM EDT Mon Sep 1 2025

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

.REST OF TONIGHT...NE winds 20 kt with gusts to 30 kt. Seas 7 to
8 ft. Wave Detail: NE 6 ft at 6 seconds. A chance of showers and
tstms, then a slight chance of showers and tstms late.
.MON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 7 ft,
building to 6 to 8 ft in the afternoon. Wave Detail: NE 7 ft at
7 seconds, becoming NE 7 ft at 8 seconds. A slight chance of
showers and tstms.
.MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 6 to
7 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: NE 7 ft
at 8 seconds, becoming NE 6 ft at 8 seconds. A slight chance of
showers and tstms.
.TUE...NE winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: NE 6 ft
at 8 seconds. A chance of showers and tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail:
NE 5 ft at 7 seconds. A chance of showers and tstms.
.WED...NE winds 10 kt. Seas 4 ft. Wave Detail: E 4 ft at
8 seconds. A chance of showers and tstms.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.THU...NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 3 ft. A slight chance of
showers and tstms.
.FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.

Winds and seas higher in and near tstms.

$$