FZUS52 KCHS 151042
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
642 AM EDT Tue Apr 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
AMZ300-152315-
642 AM EDT Tue Apr 15 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A dry cold front will move through the region today. High
pressure will then build into the southeastern states on
Wednesday and prevail into the weekend.
$$
AMZ330-152315-
Charleston Harbor-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 10 to 15 kt with gusts to 20 kt, becoming W 15
to 20 kt with gusts to 25 kt this morning. Waves 1 to 2 ft.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 10
to 15 kt early this evening.
.WED...N winds 10 kt, becoming W in the afternoon.
.WED NIGHT...SW winds 10 kt, becoming W after midnight.
.THU...NE winds 5 to 10 kt, becoming E in the afternoon.
.THU NIGHT...SE winds 10 kt.
.FRI...SE winds 10 to 15 kt.
.FRI NIGHT...S winds 10 kt.
.SAT...S winds 10 to 15 kt.
.SAT NIGHT...S winds 10 to 15 kt.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 68 degrees.
$$
AMZ350-152315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 30 kt, becoming W
late. Seas 3 to 5 ft, building to 4 to 6 ft. Wave Detail: SW 5 ft
at 6 seconds and E 1 foot at 8 seconds.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 10
to 15 kt with gusts to 20 kt early this evening. Seas 3 to 4 ft,
subsiding to 2 to 3 ft after midnight. Wave Detail: SW 4 ft at 6
seconds and SE 1 foot at 8 seconds, becoming NW 3 ft at 5 seconds
and SE 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming SW 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
4 seconds and E 2 ft at 8 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at
3 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 6 seconds and E 1 foot at 3 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
$$
AMZ352-152315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt, becoming W
late. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1
foot at 8 seconds.
.TONIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: W
3 ft at 5 seconds and SE 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming W 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
4 seconds and E 1 foot at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail:
SW 1 foot at 3 seconds and E 1 foot at 7 seconds, becoming NE
1 foot at 3 seconds and E 1 foot at 8 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
1 foot at 3 seconds and SE 1 foot at 8 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.
.SAT...S winds 10 kt. Seas 2 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$
AMZ354-152315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
642 AM EDT Tue Apr 15 2025
.TODAY...SW winds 15 to 20 kt, becoming W late morning. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 8 seconds.
.TONIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW
3 ft at 4 seconds and E 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming E 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at
5 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 ft in the evening, then 1 foot or less. Wave Detail: NE 2 ft at
6 seconds and SW 1 foot at 2 seconds, becoming SW 1 foot at
2 seconds and E 1 foot at 7 seconds.
.THU...N winds 5 kt, becoming E in the afternoon. Seas 1 foot or
less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at
7 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
1 foot at 3 seconds and E 1 foot at 8 seconds.
.FRI...SE winds 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.
.SAT...S winds 10 kt. Seas 2 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$
AMZ374-152315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt, becoming W late
morning. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E
2 ft at 8 seconds.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 15
to 20 kt this evening. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5
seconds and SE 1 foot at 8 seconds.
.WED...N winds 15 to 20 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 2 ft at
8 seconds, becoming NW 3 ft at 5 seconds and E 2 ft at 8 seconds.
.WED NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 ft.
Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 7 seconds.
.THU...NE winds 5 kt, becoming E in the afternoon. Seas 2 ft.
Wave Detail: E 2 ft at 7 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft.
.SAT...S winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
642 AM EDT Tue Apr 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
AMZ300-152315-
642 AM EDT Tue Apr 15 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A dry cold front will move through the region today. High
pressure will then build into the southeastern states on
Wednesday and prevail into the weekend.
$$
AMZ330-152315-
Charleston Harbor-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 10 to 15 kt with gusts to 20 kt, becoming W 15
to 20 kt with gusts to 25 kt this morning. Waves 1 to 2 ft.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 10
to 15 kt early this evening.
.WED...N winds 10 kt, becoming W in the afternoon.
.WED NIGHT...SW winds 10 kt, becoming W after midnight.
.THU...NE winds 5 to 10 kt, becoming E in the afternoon.
.THU NIGHT...SE winds 10 kt.
.FRI...SE winds 10 to 15 kt.
.FRI NIGHT...S winds 10 kt.
.SAT...S winds 10 to 15 kt.
.SAT NIGHT...S winds 10 to 15 kt.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 68 degrees.
$$
AMZ350-152315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 30 kt, becoming W
late. Seas 3 to 5 ft, building to 4 to 6 ft. Wave Detail: SW 5 ft
at 6 seconds and E 1 foot at 8 seconds.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 10
to 15 kt with gusts to 20 kt early this evening. Seas 3 to 4 ft,
subsiding to 2 to 3 ft after midnight. Wave Detail: SW 4 ft at 6
seconds and SE 1 foot at 8 seconds, becoming NW 3 ft at 5 seconds
and SE 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming SW 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
4 seconds and E 2 ft at 8 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 foot at
3 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 6 seconds and E 1 foot at 3 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
$$
AMZ352-152315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt, becoming W
late. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1
foot at 8 seconds.
.TONIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: W
3 ft at 5 seconds and SE 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming W 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
4 seconds and E 1 foot at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail:
SW 1 foot at 3 seconds and E 1 foot at 7 seconds, becoming NE
1 foot at 3 seconds and E 1 foot at 8 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
1 foot at 3 seconds and SE 1 foot at 8 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.
.SAT...S winds 10 kt. Seas 2 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$
AMZ354-152315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
642 AM EDT Tue Apr 15 2025
.TODAY...SW winds 15 to 20 kt, becoming W late morning. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at 8 seconds.
.TONIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW
3 ft at 4 seconds and E 1 foot at 8 seconds.
.WED...N winds 10 to 15 kt with gusts to 20 kt, becoming E 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at
5 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 ft in the evening, then 1 foot or less. Wave Detail: NE 2 ft at
6 seconds and SW 1 foot at 2 seconds, becoming SW 1 foot at
2 seconds and E 1 foot at 7 seconds.
.THU...N winds 5 kt, becoming E in the afternoon. Seas 1 foot or
less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at
7 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
1 foot at 3 seconds and E 1 foot at 8 seconds.
.FRI...SE winds 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.
.SAT...S winds 10 kt. Seas 2 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$
AMZ374-152315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
642 AM EDT Tue Apr 15 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.TODAY...SW winds 15 to 20 kt with gusts to 25 kt, becoming W late
morning. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E
2 ft at 8 seconds.
.TONIGHT...W winds 15 to 20 kt with gusts to 25 kt, becoming NW 15
to 20 kt this evening. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5
seconds and SE 1 foot at 8 seconds.
.WED...N winds 15 to 20 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 2 ft at
8 seconds, becoming NW 3 ft at 5 seconds and E 2 ft at 8 seconds.
.WED NIGHT...S winds 5 kt, becoming W after midnight. Seas 2 ft.
Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 7 seconds.
.THU...NE winds 5 kt, becoming E in the afternoon. Seas 2 ft.
Wave Detail: E 2 ft at 7 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft.
.SAT...S winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft.
$$