Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 150741
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
241 AM EST Wed Jan 15 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

AMZ300-152015-
241 AM EST Wed Jan 15 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through the week. A low pressure
system and associated cold front will impact the region this
weekend. Another low pressure system could impact the region
early to mid next week.

$$

AMZ330-152015-
Charleston Harbor-
241 AM EST Wed Jan 15 2025

.TODAY...N winds 10 to 15 kt.
.TONIGHT...N winds 5 to 10 kt.
.THU...W winds 5 to 10 kt, increasing to 15 kt with gusts to
20 kt in the afternoon.
.THU NIGHT...W winds 10 to 15 kt.
.FRI...NW winds 10 kt, becoming E in the afternoon.
.FRI NIGHT...S winds 5 kt.
.SAT...SW winds 5 to 10 kt. Showers.
.SAT NIGHT...SW winds 10 kt. Showers.
.SUN...SW winds 10 to 15 kt. A chance of showers.
.SUN NIGHT...NW winds 10 to 15 kt. A slight chance of showers.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 49 degrees.

$$

AMZ350-152015-
Waters from South Santee River to Edisto Beach SC out 20 NM-
241 AM EST Wed Jan 15 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...

.TODAY...N winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt with gusts to 20 kt this afternoon. Seas 3 to 4 ft,
subsiding to 2 to 3 ft this afternoon. Wave Detail: N 3 ft at
5 seconds and E 1 foot at 12 seconds, becoming N 2 ft at
4 seconds and E 1 foot at 12 seconds.
.TONIGHT...N winds 5 to 10 kt, becoming NW after midnight. Seas
2 ft. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at
4 seconds.
.THU...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. Wave Detail: W 2 ft at 3 seconds and E 1 foot at
6 seconds, becoming SW 3 ft at 4 seconds and NE 1 foot at
5 seconds.
.THU NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: SW 4 ft
at 5 seconds and NE 1 foot at 4 seconds, becoming W 4 ft at
5 seconds and E 1 foot at 9 seconds.
.FRI...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and N
1 foot at 2 seconds.
.FRI NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
1 foot or less, then around 2 ft after midnight. Wave Detail: E
1 foot at 2 seconds and SW 1 foot at 5 seconds, becoming E 1 foot
at 2 seconds and SW 1 foot at 3 seconds.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft. Showers.
.SUN...SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers.
.SUN NIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers.

$$

AMZ352-152015-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
241 AM EST Wed Jan 15 2025

.TODAY...N winds 15 to 20 kt, diminishing to 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E
1 foot at 12 seconds.
.TONIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
2 ft. Wave Detail: N 1 foot at 4 seconds and E 1 foot at
12 seconds.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 3 seconds and NE 1 foot at 4 seconds.
.THU NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. Wave Detail: W 3 ft at 4 seconds and E
1 foot at 9 seconds.
.FRI...NW winds 10 to 15 kt, becoming NE 5 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at
8 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 foot at 2 seconds and SW 1 foot at 3 seconds.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft. Showers.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.SUN NIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers.

$$

AMZ354-152015-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
241 AM EST Wed Jan 15 2025

.TODAY...N winds 15 to 20 kt, diminishing to 5 to 10 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at
13 seconds.
.TONIGHT...N winds 5 kt, becoming W after midnight. Seas 2 ft.
Wave Detail: W 1 foot at 2 seconds and NE 1 foot at 4 seconds.
.THU...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: SW 2 ft at
3 seconds and NE 1 foot at 5 seconds.
.THU NIGHT...W winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot at
4 seconds.
.FRI...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
1 to 2 ft. Wave Detail: NW 2 ft at 3 seconds and E 1 foot at
9 seconds, becoming N 1 foot at 3 seconds and E 1 foot at
8 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 foot at 2 seconds and E 1 foot at 8 seconds.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers.
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers.

$$

AMZ374-152015-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
241 AM EST Wed Jan 15 2025

.TODAY...N winds 15 to 20 kt, diminishing to 5 to 10 kt. Seas 4
to 5 ft, subsiding to 3 to 4 ft this afternoon. Wave Detail: N 4
ft at 5 seconds and E 2 ft at 12 seconds.
.TONIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 2 ft at
12 seconds.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft
in the afternoon. Wave Detail: W 2 ft at 3 seconds and NE 1 foot
at 5 seconds, becoming W 3 ft at 4 seconds and NE 1 foot at
6 seconds.
.THU NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft. Wave Detail: W 4 ft at 4 seconds and E 2 ft at 10 seconds.
.FRI...NW winds 10 to 15 kt with gusts to 20 kt, becoming N 5 to
10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 ft in the
afternoon. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
8 seconds, becoming NW 2 ft at 4 seconds and E 1 foot at
8 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft
at 3 seconds and E 1 foot at 8 seconds.
.SAT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers.
.SUN...SW winds 15 to 20 kt. Seas 3 to 4 ft. Showers likely.
.SUN NIGHT...NW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of
showers.

$$