171
FZUS52 KCHS 171054
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
654 AM EDT Tue Sep 17 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

AMZ300-172315-
654 AM EDT Tue Sep 17 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Low pressure across the Carolinas will weaken through mid week.
High pressure should develop inland late week into the weekend.

$$

AMZ330-172315-
Charleston Harbor-
654 AM EDT Tue Sep 17 2024

.TODAY...SW winds 10 to 15 kt, diminishing to 5 to 10 kt and
becoming S.
.TONIGHT...S winds 5 to 10 kt.
.WED...SW winds 5 kt, becoming S in the afternoon. A slight
chance of showers and tstms in the afternoon.
.WED NIGHT...S winds 10 kt, becoming SW after midnight. A slight
chance of showers and tstms in the evening.
.THU...NW winds 5 kt, becoming E in the afternoon. A slight
chance of showers and tstms in the afternoon.
.THU NIGHT...E winds 5 to 10 kt, becoming N after midnight. A
slight chance of showers and tstms in the evening.
.FRI...NE winds 5 to 10 kt.
.FRI NIGHT...NE winds 5 to 10 kt.
.SAT...NE winds 10 to 15 kt.
.SAT NIGHT...NE winds 10 to 15 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 76 degrees.

$$

AMZ350-172315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
654 AM EDT Tue Sep 17 2024

.TODAY...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and SW 2 ft at 4 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and SW 2 ft at 3 seconds.
.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.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. 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 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 11 seconds. A slight chance of
showers and tstms.
.THU NIGHT...E winds 5 kt, becoming N after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 11 seconds. A slight chance of
showers and tstms.
.FRI...NE winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-172315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
654 AM EDT Tue Sep 17 2024

.TODAY...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
10 seconds.
.TONIGHT...S winds 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft
after midnight. Wave Detail: E 4 ft at 10 seconds, becoming E
3 ft at 10 seconds.
.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.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of
showers and tstms.
.THU...NW winds 5 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds.
.THU NIGHT...E winds 5 kt, becoming N after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 11 seconds.
.FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-172315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
654 AM EDT Tue Sep 17 2024

.TODAY...W winds 5 to 10 kt, becoming S late. Seas 3 to 4 ft.
Wave Detail: E 4 ft at 10 seconds.
.TONIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
10 seconds.
.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.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. 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 E in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 9 seconds.
.THU NIGHT...SE winds 5 kt, becoming NW after midnight. Seas 2 to
3 ft. Wave Detail: E 3 ft at 11 seconds.
.FRI...NE winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-172315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
654 AM EDT Tue Sep 17 2024

.TODAY...SW winds 10 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft
this afternoon. Wave Detail: E 6 ft at 10 seconds, becoming E 5 ft
at 10 seconds.
.TONIGHT...S winds 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at
10 seconds.
.WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. A slight chance of
showers and tstms.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. A chance of showers
and tstms.
.THU...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
3 to 4 ft. Wave Detail: E 3 ft at 9 seconds. A slight chance of
showers and tstms.
.THU NIGHT...E winds 5 kt, becoming N after midnight. Seas 3 ft.
Wave Detail: E 3 ft at 11 seconds. A slight chance of showers and
tstms.
.FRI...NE winds 10 kt. 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.
.SAT...NE winds 15 kt. Seas 4 to 5 ft. A slight chance of showers
and tstms.
.SAT NIGHT...NE winds 15 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$