FZUS52 KCHS 231132
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
732 AM EDT Fri May 23 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
AMZ300-240015-
732 AM EDT Fri May 23 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through tonight. A weak front to the
south slides closer to the area and stalls through the holiday
weekend. This front eventually lifts north early next week as a
cold front brings increasingly unsettled weather later Monday
through Tuesday. Mainly seasonable conditions return by later
next week with weak troughing stretching across the Southeast.
$$
AMZ330-240015-
Charleston Harbor-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 to 15 kt, becoming SW 10 to 15 kt this
afternoon.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon.
.SAT NIGHT...SE winds 5 to 10 kt. A slight chance of showers and
tstms after midnight.
.SUN...SE winds 5 to 10 kt. A chance of showers and tstms.
.SUN NIGHT...S winds 10 kt. A chance of showers and tstms.
.MON...NE winds 10 to 15 kt. A chance of showers and tstms.
.MON NIGHT...E winds 10 kt. Showers likely with a chance of
tstms.
.TUE...SE winds 10 kt. Showers and tstms likely.
.TUE NIGHT...S winds 10 kt. Showers likely with a chance of
tstms.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-240015-
Waters from South Santee River to Edisto Beach SC out 20 NM-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 to 15 kt, becoming SW early this afternoon,
then becoming S late. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4
seconds and SE 2 ft at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Seas
2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.SAT...NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 2 ft at 9 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and SE
2 ft at 7 seconds. A chance of showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. Showers likely with
a chance of tstms.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms
likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ352-240015-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 kt, becoming SE this afternoon. Seas 2 to 3
ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 9 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 ft. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at
8 seconds.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 8 seconds and S 1 foot at
4 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and SE 2 ft at 7 seconds. A chance of showers. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.TUE...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ354-240015-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
732 AM EDT Fri May 23 2025
.TODAY...W winds 10 kt, becoming SE this afternoon. Seas 2 ft.
Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 8 seconds.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and SE 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 7 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 ft. A chance of showers
and tstms.
.TUE...S winds 10 to 15 kt. Seas 2 ft. Showers and tstms likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ374-240015-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
732 AM EDT Fri May 23 2025
.TODAY...W winds 10 to 15 kt, becoming E 10 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and SE 2 ft at 9
seconds.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT...N winds 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds.
.SAT NIGHT...E winds 10 kt, becoming SE after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at
4 seconds. A slight chance of showers and tstms after midnight.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 2 ft at 8 seconds. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.TUE...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
732 AM EDT Fri May 23 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
AMZ300-240015-
732 AM EDT Fri May 23 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through tonight. A weak front to the
south slides closer to the area and stalls through the holiday
weekend. This front eventually lifts north early next week as a
cold front brings increasingly unsettled weather later Monday
through Tuesday. Mainly seasonable conditions return by later
next week with weak troughing stretching across the Southeast.
$$
AMZ330-240015-
Charleston Harbor-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 to 15 kt, becoming SW 10 to 15 kt this
afternoon.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon.
.SAT NIGHT...SE winds 5 to 10 kt. A slight chance of showers and
tstms after midnight.
.SUN...SE winds 5 to 10 kt. A chance of showers and tstms.
.SUN NIGHT...S winds 10 kt. A chance of showers and tstms.
.MON...NE winds 10 to 15 kt. A chance of showers and tstms.
.MON NIGHT...E winds 10 kt. Showers likely with a chance of
tstms.
.TUE...SE winds 10 kt. Showers and tstms likely.
.TUE NIGHT...S winds 10 kt. Showers likely with a chance of
tstms.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-240015-
Waters from South Santee River to Edisto Beach SC out 20 NM-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 to 15 kt, becoming SW early this afternoon,
then becoming S late. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4
seconds and SE 2 ft at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt, becoming NW after midnight. Seas
2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.SAT...NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 2 ft at 9 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and SE
2 ft at 7 seconds. A chance of showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 ft. Showers likely with
a chance of tstms.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. Showers and tstms
likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ352-240015-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
732 AM EDT Fri May 23 2025
.TODAY...NW winds 10 kt, becoming SE this afternoon. Seas 2 to 3
ft. Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 9 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 ft. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at
8 seconds.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 8 seconds and S 1 foot at
4 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and SE 2 ft at 7 seconds. A chance of showers. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.TUE...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ354-240015-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
732 AM EDT Fri May 23 2025
.TODAY...W winds 10 kt, becoming SE this afternoon. Seas 2 ft.
Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 8 seconds.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 8 seconds.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and SE 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 7 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 ft. A chance of showers
and tstms.
.TUE...S winds 10 to 15 kt. Seas 2 ft. Showers and tstms likely.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ374-240015-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
732 AM EDT Fri May 23 2025
.TODAY...W winds 10 to 15 kt, becoming E 10 kt this afternoon.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and SE 2 ft at 9
seconds.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT...N winds 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds.
.SAT NIGHT...E winds 10 kt, becoming SE after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 foot at
4 seconds. A slight chance of showers and tstms after midnight.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 2 ft at 8 seconds. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers
and tstms.
.MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.TUE...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
Winds and seas higher in and near tstms.
$$