997
FZUS52 KCHS 031913
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
313 PM EDT Thu Apr 3 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

AMZ300-040815-
313 PM EDT Thu Apr 3 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Strong high pressure centered over the Atlantic will prevail into
this weekend. A cold front will push offshore Monday with high
pressure prevailing for much of next week.

$$

AMZ330-040815-
Charleston Harbor-
313 PM EDT Thu Apr 3 2025

.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt late.
.FRI...S winds 5 kt, increasing to 10 kt in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt.
.SAT...S winds 5 to 10 kt.
.SAT NIGHT...S winds 10 kt.
.SUN...S winds 10 to 15 kt with gusts to 20 kt.
.SUN NIGHT...S winds 10 to 15 kt with gusts to 20 kt. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.MON...SW winds 10 to 15 kt. Showers with a chance of tstms.
.MON NIGHT...W winds 10 kt. Showers with a chance of tstms.
.TUE...N winds 10 kt.
.TUE NIGHT...N winds 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 67 degrees.

$$

AMZ350-040815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
313 PM EDT Thu Apr 3 2025

.TONIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
7 seconds.
.FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds.
.SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 9 seconds, becoming S 5 ft at 9 seconds.
.SUN...SW winds 15 to 20 kt. Seas 4 to 6 ft, building to 5 to
6 ft in the afternoon. Wave Detail: S 5 ft at 7 seconds.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft. A slight chance of showers after midnight.
.MON...SW winds 15 to 20 kt. Seas 5 to 7 ft. Showers with a
chance of tstms.
.MON NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. Showers with a
chance of tstms.
.TUE...N winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of
showers.
.TUE NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-040815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
313 PM EDT Thu Apr 3 2025

.TONIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
8 seconds.
.FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 8 seconds.
.SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 8 seconds, becoming SE 5 ft at 9 seconds.
.SUN...S winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft
at 8 seconds.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft. A slight chance of showers.
.MON...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers with a
chance of tstms.
.MON NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft. Showers with a
chance of tstms.
.TUE...N winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-040815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
313 PM EDT Thu Apr 3 2025

.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds.
.FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
.FRI NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 8 seconds, becoming SE 5 ft at 8 seconds.
.SUN...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft.
Wave Detail: SE 5 ft at 7 seconds.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 4 to 5 ft. A slight chance of showers after
midnight.
.MON...SW winds 15 kt. Seas 4 to 5 ft. Showers with a chance of
tstms.
.MON NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Showers with a
chance of tstms.
.TUE...N winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.TUE NIGHT...N winds 15 to 20 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-040815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
313 PM EDT Thu Apr 3 2025

.TONIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 9 seconds.
.FRI...S winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft
at 8 seconds.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 4 ft at 8 seconds.
.SAT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
8 seconds.
.SAT NIGHT...S winds 15 to 20 kt. Seas 4 to 5 ft, building to
5 to 7 ft after midnight. Wave Detail: SE 5 ft at 9 seconds,
becoming SE 6 ft at 9 seconds.
.SUN...S winds 15 to 20 kt. Seas 5 to 7 ft, building to 6 to 7 ft
in the afternoon. Wave Detail: SE 6 ft at 8 seconds, becoming SE
5 ft at 9 seconds.
.SUN NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft, subsiding to 5 to 6 ft after midnight. A slight chance of
showers after midnight.
.MON...SW winds 15 to 20 kt. Seas 5 to 6 ft. Showers likely with
a chance of tstms.
.MON NIGHT...W winds 15 to 20 kt. Seas 4 to 6 ft. Showers with a
chance of tstms.
.TUE...N winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of
showers.
.TUE NIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$