FZUS52 KCHS 250712
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
311 AM EDT Sun May 25 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
AMZ300-252000-
311 AM EDT Sun May 25 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A series of disturbances will move across the area through the
week, then a cold front will sweep through on Saturday.
$$
AMZ330-252000-
Charleston Harbor-
311 AM EDT Sun May 25 2025
.TODAY...E winds 5 to 10 kt, becoming SE 15 kt late. A slight
chance of tstms this morning. A chance of showers. A chance of
tstms this afternoon.
.TONIGHT...SE winds 10 kt, becoming SW after midnight. A chance
of tstms. A chance of showers in the evening, then showers likely
after midnight.
.MON...NW winds 10 kt, becoming NE in the afternoon. A chance of
showers and tstms.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. A chance
of showers and tstms.
.TUE...E winds 10 to 15 kt with gusts to 20 kt. A chance of
showers. A slight chance of tstms in the morning, then a chance
of tstms in the afternoon.
.TUE NIGHT...SE winds 10 to 15 kt with gusts to 20 kt,
diminishing to 5 to 10 kt after midnight. A chance of showers and
tstms in the evening, then showers likely with a slight chance of
tstms after midnight.
.WED...S winds 10 to 15 kt. Showers likely with a chance of
tstms.
.WED NIGHT...S winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
.THU...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-252000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
311 AM EDT Sun May 25 2025
.TODAY...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
5 seconds and SE 1 foot at 9 seconds. A slight chance of tstms.
.TONIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas
2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 9 seconds, becoming S 3 ft at
5 seconds and E 2 ft at 9 seconds. A chance of showers and tstms
in the evening, then showers likely with a chance of tstms after
midnight with vsby 1 to 3 NM.
.MON...W winds 10 to 15 kt, becoming NE in the afternoon. Seas
3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail:
S 3 ft at 5 seconds and E 1 foot at 9 seconds, becoming S 3 ft at
6 seconds and N 1 foot at 2 seconds. Showers likely with a chance
of tstms.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight. Wave Detail: NE 2 ft
at 4 seconds and S 2 ft at 5 seconds, becoming E 3 ft at
4 seconds and S 1 foot at 5 seconds. A chance of showers. A
chance of tstms, mainly in the evening.
.TUE...E winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: SE 3 ft at 5 seconds and SE 2 ft at 9 seconds. A chance
of showers. A slight chance of tstms in the morning, then a
chance of tstms in the afternoon.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
3 ft at 5 seconds and SE 3 ft at 8 seconds. A chance of showers
and tstms in the evening, then showers likely with a slight
chance of tstms after midnight.
.WED...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 3 ft. Showers likely with a
slight chance of tstms.
.THU...SW winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ352-252000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 10 kt. Seas 2 ft. Wave Detail: SE 1 foot at
4 seconds and NE 1 foot at 5 seconds. A chance of showers and
tstms, mainly this morning.
.TONIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas
2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S
2 ft at 4 seconds and NE 1 foot at 5 seconds, becoming S 3 ft at
5 seconds and NE 1 foot at 5 seconds. A chance of showers and
tstms.
.MON...W winds 10 to 15 kt, becoming E 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and
NE 1 foot at 5 seconds. A chance of showers and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.TUE...E winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
5 seconds and SE 1 foot at 9 seconds. Showers likely. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and E 2 ft at 5 seconds. A chance of tstms.
A chance of showers in the evening, then showers likely after
midnight.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 ft. A chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
Winds and seas higher in and near tstms.
$$
AMZ354-252000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and NE 1 foot at 4 seconds. A slight chance of
tstms.
.TONIGHT...S winds 15 kt, becoming SW after midnight. Seas 3 ft.
Wave Detail: S 3 ft at 4 seconds and E 1 foot at 7 seconds. A
chance of showers and tstms, mainly in the evening.
.MON...SW winds 10 to 15 kt, becoming SE 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and
NE 1 foot at 5 seconds. A slight chance of showers and tstms in
the morning, then a chance of showers and tstms in the afternoon.
.MON NIGHT...E winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 1 foot at 9 seconds. Showers likely with a
chance of tstms.
.TUE...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 5 seconds and E 1 foot at 9 seconds. Showers likely. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.TUE NIGHT...SE winds 10 kt, becoming S after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 seconds.
A chance of showers and tstms.
.WED...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and
tstms.
.WED NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
Winds and seas higher in and near tstms.
$$
AMZ374-252000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 5 to 10 kt, increasing to 10 to 15 kt late.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at
5 seconds. A slight chance of showers and tstms early this
morning, then a chance of showers and tstms late this morning.
.TONIGHT...S winds 10 to 15 kt, becoming SW with gusts to 20 kt
after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds
and NE 2 ft at 7 seconds. A chance of showers and tstms.
.MON...SW winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: S 3 ft at 5 seconds and E
1 foot at 9 seconds, becoming S 3 ft at 5 seconds and E 1 foot at
8 seconds. A chance of showers and tstms.
.MON NIGHT...E winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 1 foot at 8 seconds. Showers likely with a
chance of tstms.
.TUE...E winds 10 kt. Seas 3 ft. Wave Detail: E 2 ft at 5 seconds
and E 2 ft at 9 seconds. Showers likely. A slight chance of tstms
in the morning, then a chance of tstms in the afternoon.
.TUE NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds and NE 2 ft at 5 seconds. A chance of tstms. A chance
of showers in the evening, then showers likely after midnight.
.WED...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
311 AM EDT Sun May 25 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
AMZ300-252000-
311 AM EDT Sun May 25 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A series of disturbances will move across the area through the
week, then a cold front will sweep through on Saturday.
$$
AMZ330-252000-
Charleston Harbor-
311 AM EDT Sun May 25 2025
.TODAY...E winds 5 to 10 kt, becoming SE 15 kt late. A slight
chance of tstms this morning. A chance of showers. A chance of
tstms this afternoon.
.TONIGHT...SE winds 10 kt, becoming SW after midnight. A chance
of tstms. A chance of showers in the evening, then showers likely
after midnight.
.MON...NW winds 10 kt, becoming NE in the afternoon. A chance of
showers and tstms.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. A chance
of showers and tstms.
.TUE...E winds 10 to 15 kt with gusts to 20 kt. A chance of
showers. A slight chance of tstms in the morning, then a chance
of tstms in the afternoon.
.TUE NIGHT...SE winds 10 to 15 kt with gusts to 20 kt,
diminishing to 5 to 10 kt after midnight. A chance of showers and
tstms in the evening, then showers likely with a slight chance of
tstms after midnight.
.WED...S winds 10 to 15 kt. Showers likely with a chance of
tstms.
.WED NIGHT...S winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
.THU...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 78 degrees.
$$
AMZ350-252000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
311 AM EDT Sun May 25 2025
.TODAY...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
5 seconds and SE 1 foot at 9 seconds. A slight chance of tstms.
.TONIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas
2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 9 seconds, becoming S 3 ft at
5 seconds and E 2 ft at 9 seconds. A chance of showers and tstms
in the evening, then showers likely with a chance of tstms after
midnight with vsby 1 to 3 NM.
.MON...W winds 10 to 15 kt, becoming NE in the afternoon. Seas
3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail:
S 3 ft at 5 seconds and E 1 foot at 9 seconds, becoming S 3 ft at
6 seconds and N 1 foot at 2 seconds. Showers likely with a chance
of tstms.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight. Wave Detail: NE 2 ft
at 4 seconds and S 2 ft at 5 seconds, becoming E 3 ft at
4 seconds and S 1 foot at 5 seconds. A chance of showers. A
chance of tstms, mainly in the evening.
.TUE...E winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: SE 3 ft at 5 seconds and SE 2 ft at 9 seconds. A chance
of showers. A slight chance of tstms in the morning, then a
chance of tstms in the afternoon.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
3 ft at 5 seconds and SE 3 ft at 8 seconds. A chance of showers
and tstms in the evening, then showers likely with a slight
chance of tstms after midnight.
.WED...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 3 ft. Showers likely with a
slight chance of tstms.
.THU...SW winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ352-252000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 10 kt. Seas 2 ft. Wave Detail: SE 1 foot at
4 seconds and NE 1 foot at 5 seconds. A chance of showers and
tstms, mainly this morning.
.TONIGHT...SE winds 10 to 15 kt, becoming SW after midnight. Seas
2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S
2 ft at 4 seconds and NE 1 foot at 5 seconds, becoming S 3 ft at
5 seconds and NE 1 foot at 5 seconds. A chance of showers and
tstms.
.MON...W winds 10 to 15 kt, becoming E 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and
NE 1 foot at 5 seconds. A chance of showers and tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and E 1 foot at 9 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.TUE...E winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
5 seconds and SE 1 foot at 9 seconds. Showers likely. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and E 2 ft at 5 seconds. A chance of tstms.
A chance of showers in the evening, then showers likely after
midnight.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 ft. A chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
Winds and seas higher in and near tstms.
$$
AMZ354-252000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and NE 1 foot at 4 seconds. A slight chance of
tstms.
.TONIGHT...S winds 15 kt, becoming SW after midnight. Seas 3 ft.
Wave Detail: S 3 ft at 4 seconds and E 1 foot at 7 seconds. A
chance of showers and tstms, mainly in the evening.
.MON...SW winds 10 to 15 kt, becoming SE 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and
NE 1 foot at 5 seconds. A slight chance of showers and tstms in
the morning, then a chance of showers and tstms in the afternoon.
.MON NIGHT...E winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 1 foot at 9 seconds. Showers likely with a
chance of tstms.
.TUE...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 5 seconds and E 1 foot at 9 seconds. Showers likely. A slight
chance of tstms in the morning, then a chance of tstms in the
afternoon.
.TUE NIGHT...SE winds 10 kt, becoming S after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 seconds.
A chance of showers and tstms.
.WED...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and
tstms.
.WED NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
Winds and seas higher in and near tstms.
$$
AMZ374-252000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
311 AM EDT Sun May 25 2025
.TODAY...SE winds 5 to 10 kt, increasing to 10 to 15 kt late.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at
5 seconds. A slight chance of showers and tstms early this
morning, then a chance of showers and tstms late this morning.
.TONIGHT...S winds 10 to 15 kt, becoming SW with gusts to 20 kt
after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds
and NE 2 ft at 7 seconds. A chance of showers and tstms.
.MON...SW winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: S 3 ft at 5 seconds and E
1 foot at 9 seconds, becoming S 3 ft at 5 seconds and E 1 foot at
8 seconds. A chance of showers and tstms.
.MON NIGHT...E winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 1 foot at 8 seconds. Showers likely with a
chance of tstms.
.TUE...E winds 10 kt. Seas 3 ft. Wave Detail: E 2 ft at 5 seconds
and E 2 ft at 9 seconds. Showers likely. A slight chance of tstms
in the morning, then a chance of tstms in the afternoon.
.TUE NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds and NE 2 ft at 5 seconds. A chance of tstms. A chance
of showers in the evening, then showers likely after midnight.
.WED...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
Winds and seas higher in and near tstms.
$$