Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 180741
CWFCHS

Coastal Waters Forecast for South Carolina
National Weather Service Charleston SC
341 AM EDT Thu Apr 18 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

AMZ300-182015-
341 AM EDT Thu Apr 18 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.

$$

AMZ330-182015-
Charleston Harbor-
341 AM EDT Thu Apr 18 2024

.TODAY...SW winds 10 to 15 kt, decreasing to 5 to 10 kt this
morning, then becoming S 10 to 15 kt in the afternoon.
.TONIGHT...SW winds 5 to 10 kt.
.FRI...SW winds 5 kt, becoming S 10 to 15 kt in the afternoon. A
slight chance of showers and tstms in the afternoon.
.FRI NIGHT...SW winds 5 to 10 kt. A slight chance of showers and
tstms.
.SAT...SW winds 5 to 10 kt. A chance of showers and tstms in the
afternoon.
.SAT NIGHT...SW winds 5 to 10 kt, becoming N after midnight. A
chance of showers and tstms.
.SUN...NE winds 10 to 15 kt. A chance of showers and tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Showers likely with a chance
of tstms.
.MON...NE winds 10 to 15 kt. A slight chance of showers.
.MON 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 68 degrees.

$$

AMZ350-182015-
Waters from South Santee River to Edisto Beach SC out 20 NM-
341 AM EDT Thu Apr 18 2024

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

Winds and seas higher in and near tstms.

$$

AMZ352-182015-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
341 AM EDT Thu Apr 18 2024

.TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds.
.TONIGHT...SW winds 5 to 10 kt. 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 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 ft at 13 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and E 1 ft at 12 seconds. A slight 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: SE 3 ft at 8 seconds and E 1 ft at 12 seconds.
A chance of showers and tstms.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.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.

Winds and seas higher in and near tstms.

$$

AMZ354-182015-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
341 AM EDT Thu Apr 18 2024

.TODAY...SW winds 10 kt, becoming S 10 to 15 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 4
seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 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 and E 1 ft at
14 seconds.
.FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 ft at 14 seconds.
.SAT...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: SE 2 ft at 8 seconds and SE 1 ft at 4 seconds.
A slight chance of showers and tstms in the afternoon.
.SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 ft. Wave Detail: SE 2 ft at 8 seconds and E 1 ft at 12 seconds.
A chance of showers and tstms.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...N winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-182015-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
341 AM EDT Thu Apr 18 2024

.TODAY...SW winds 10 to 15 kt, becoming S in the afternoon. Seas
3 ft. Wave Detail: SE 3 ft at 9 seconds.
.TONIGHT...SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
9 seconds and E 1 ft at 14 seconds.
.FRI...SW winds 5 to 10 kt. Seas 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 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 ft at 13 seconds.
.SAT...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. A slight chance of showers
and tstms in the afternoon.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and E 2 ft at 11 seconds. A chance of showers
and tstms.
.SUN...N winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.SUN NIGHT...NE winds 10 to 15 kt. 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
with a slight chance of tstms.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$
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