Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 190521
CWFCHS

Coastal Waters Forecast for South Carolina
National Weather Service Charleston SC
121 AM EDT Fri Apr 19 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

AMZ300-191815-
121 AM EDT Fri Apr 19 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will persist through tonight. A slow moving front
will bring unsettled weather to our area Friday through early
next week. High pressure returns by the middle of next week.

$$

AMZ330-191815-
Charleston Harbor-
121 AM EDT Fri Apr 19 2024

.REST OF TONIGHT...SW winds 10 kt, diminishing to 5 to 10 kt late.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts to
20 kt in the afternoon. A slight chance of showers and tstms in
the afternoon.
.FRI NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. A slight chance of showers and tstms in the evening.
.SAT...SW winds 5 to 10 kt. A chance of showers and tstms in the
afternoon.
.SAT NIGHT...W winds 5 to 10 kt, becoming NE after midnight. A
chance of showers and tstms.
.SUN...NE winds 10 to 15 kt. A chance of showers with a slight
chance of tstms in the morning, then showers likely with a chance
of tstms in the afternoon.
.SUN NIGHT...NE winds 10 to 15 kt. Showers. A chance of tstms,
mainly in the evening.
.MON...NE winds 10 to 15 kt. A slight chance of showers.
.MON NIGHT...N winds 10 to 15 kt.
.TUE...NE winds 10 kt.
.TUE 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 69 degrees.

$$

AMZ350-191815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
121 AM EDT Fri Apr 19 2024

.REST OF TONIGHT...SW winds 10 kt, diminishing to 5 to 10 kt late.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 9
seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and S 2 ft at 4 seconds.
.FRI NIGHT...SW winds 10 kt. Seas 3 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms after midnight.
.SAT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: S 2 ft at
5 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms
in the afternoon.
.SAT NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave .Detail: S 2 ft at 5 seconds and SE 2 ft at
8 seconds. A chance of showers and tstms.
.SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to
4 ft in the afternoon. Wave Detail: NE 2 ft at 3 seconds and S
2 ft at 5 seconds, becoming NE 2 ft at 4 seconds and E 2 ft at
9 seconds. A slight chance of tstms. A chance of showers in the
morning, then showers likely in the afternoon.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Showers with a
slight chance of tstms.
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.MON NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-191815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
121 AM EDT Fri Apr 19 2024

.REST OF TONIGHT...SW winds 10 kt, diminishing to 5 to 10 kt late.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 ft at 14 seconds.
.FRI NIGHT...SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
9 seconds and S 2 ft at 4 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and
tstms in the afternoon.
.SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at
8 seconds. A chance of showers and tstms.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 3 seconds and SE 2 ft at 8 seconds. A slight chance of showers
in the morning, then a chance of showers and tstms in the
afternoon.
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 ft. Showers. A chance of
tstms, mainly in the evening.
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-191815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
121 AM EDT Fri Apr 19 2024

.REST OF TONIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
9 seconds and S 2 ft at 4 seconds.
.SAT...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at 8 seconds. A
chance of showers and tstms in the afternoon.
.SAT NIGHT...SW winds 10 kt, becoming W after midnight. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds.
A chance of showers and tstms.
.SUN...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: E 2 ft at 8 seconds and NE 1 ft at
2 seconds. A slight chance of showers in the morning, then a
chance of showers and tstms in the afternoon.
.SUN NIGHT...NE winds 10 kt, becoming N after midnight. Seas 2 to
3 ft. Showers likely with a chance of tstms.
.MON...N winds 10 to 15 kt. Seas 3 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-191815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
121 AM EDT Fri Apr 19 2024

.REST OF TONIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail:
SE 3 ft at 9 seconds and S 2 ft at 4 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 ft at 14 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 4 seconds and SE 3 ft at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms in the afternoon.
.SAT NIGHT...S winds 10 kt, becoming W after midnight. Seas 3 ft.
Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. A
chance of showers and tstms.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
3 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at 4 seconds.
A slight chance of showers in the morning, then a chance of
showers with a slight chance of tstms in the afternoon.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after
midnight. Seas 3 to 4 ft. Showers likely with a chance of tstms.
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.MON NIGHT...N winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance
of showers.
.TUE...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$


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