FZUS52 KCHS 130403
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
Issued by National Weather Service Columbia SC
1203 AM EDT Tue May 13 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
AMZ300-131715-
1203 AM EDT Tue May 13 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A front will remain stalled near the area, before lifting north
of the region by midweek. High pressure is expected to return
late week.
$$
AMZ330-131715-
Charleston Harbor-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt late. A
slight chance of showers and tstms this morning.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. A slight chance of tstms. A slight chance of showers in
the evening, then a chance of showers after midnight.
.WED...SW winds 5 kt, increasing to 10 kt in the afternoon. A
chance of showers. A chance of tstms in the afternoon.
.WED NIGHT...SW winds 5 to 10 kt. A chance of showers. A chance
of tstms, mainly in the evening.
.THU...SW winds 10 kt. A chance of showers in the morning.
.THU NIGHT...SW winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 to 10 kt.
.SAT...SW winds 10 kt.
.SAT NIGHT...SW winds 5 to 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 75 degrees.
$$
AMZ350-131715-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to 4 to
5 ft this afternoon. Wave Detail: SE 6 ft at 8 seconds, becoming
SE 5 ft at 8 seconds. A slight chance of showers and tstms this
morning.
.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 5 ft at 8 seconds,
becoming SE 4 ft at 8 seconds. A slight chance of tstms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds. A chance of showers. A slight chance of tstms in
the morning, then a chance of tstms in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds. A chance of showers with a slight chance of
tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds.
.FRI...SW winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ352-131715-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft this afternoon. Wave Detail: SE 5 ft at 8 seconds, becoming
SE 4 ft at 8 seconds. A slight chance of showers and tstms early
this morning.
.TONIGHT...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds. A chance of showers. A chance of tstms, mainly in
the evening.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of
showers. A slight chance of tstms in the afternoon.
.WED NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds and S 1 foot at 4 seconds. A slight chance of tstms. A
chance of showers, mainly in the evening.
.THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ354-131715-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 kt, becoming S late. Seas 4 to 5 ft,
subsiding to 3 to 4 ft this afternoon. Wave Detail: SE 5 ft at
8 seconds, becoming SE 4 ft at 8 seconds. A slight chance of
showers and tstms late.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of showers and
tstms, mainly in the evening.
.WED...W winds 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and S 1 foot at
4 seconds. A slight chance of showers and tstms in the afternoon.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and S 2 ft at 4 seconds. A slight chance of tstms in
the evening. A slight chance of showers.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 4 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-131715-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt, becoming S late. Seas 4 to 6 ft,
subsiding to 4 to 5 ft this afternoon. Wave Detail: SE 6 ft at
8 seconds, becoming SE 5 ft at 8 seconds. A slight chance of
showers early this morning.
.TONIGHT...SW winds 10 to 15 kt. Seas 4 ft. Wave Detail: SE 4 ft
at 8 seconds. A chance of showers. A chance of tstms, mainly in
the evening.
.WED...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
8 seconds and SW 2 ft at 4 seconds. A chance of showers in the
morning.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 8 seconds and SW 2 ft at 4 seconds. A slight chance of
showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and SW 2 ft at 4 seconds. A slight chance of showers
in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
Issued by National Weather Service Columbia SC
1203 AM EDT Tue May 13 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
AMZ300-131715-
1203 AM EDT Tue May 13 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A front will remain stalled near the area, before lifting north
of the region by midweek. High pressure is expected to return
late week.
$$
AMZ330-131715-
Charleston Harbor-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 5 to 10 kt, becoming S 10 to 15 kt late. A
slight chance of showers and tstms this morning.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. A slight chance of tstms. A slight chance of showers in
the evening, then a chance of showers after midnight.
.WED...SW winds 5 kt, increasing to 10 kt in the afternoon. A
chance of showers. A chance of tstms in the afternoon.
.WED NIGHT...SW winds 5 to 10 kt. A chance of showers. A chance
of tstms, mainly in the evening.
.THU...SW winds 10 kt. A chance of showers in the morning.
.THU NIGHT...SW winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 to 10 kt.
.SAT...SW winds 10 kt.
.SAT NIGHT...SW winds 5 to 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 75 degrees.
$$
AMZ350-131715-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to 4 to
5 ft this afternoon. Wave Detail: SE 6 ft at 8 seconds, becoming
SE 5 ft at 8 seconds. A slight chance of showers and tstms this
morning.
.TONIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 5 ft at 8 seconds,
becoming SE 4 ft at 8 seconds. A slight chance of tstms. A slight
chance of showers in the evening, then a chance of showers after
midnight.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds. A chance of showers. A slight chance of tstms in
the morning, then a chance of tstms in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds. A chance of showers with a slight chance of
tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds.
.FRI...SW winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ352-131715-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft this afternoon. Wave Detail: SE 5 ft at 8 seconds, becoming
SE 4 ft at 8 seconds. A slight chance of showers and tstms early
this morning.
.TONIGHT...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds. A chance of showers. A chance of tstms, mainly in
the evening.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of
showers. A slight chance of tstms in the afternoon.
.WED NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds and S 1 foot at 4 seconds. A slight chance of tstms. A
chance of showers, mainly in the evening.
.THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ354-131715-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 kt, becoming S late. Seas 4 to 5 ft,
subsiding to 3 to 4 ft this afternoon. Wave Detail: SE 5 ft at
8 seconds, becoming SE 4 ft at 8 seconds. A slight chance of
showers and tstms late.
.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of showers and
tstms, mainly in the evening.
.WED...W winds 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and S 1 foot at
4 seconds. A slight chance of showers and tstms in the afternoon.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and S 2 ft at 4 seconds. A slight chance of tstms in
the evening. A slight chance of showers.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 4 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 kt. Seas 2 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-131715-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1203 AM EDT Tue May 13 2025
.TODAY...SW winds 10 to 15 kt, becoming S late. Seas 4 to 6 ft,
subsiding to 4 to 5 ft this afternoon. Wave Detail: SE 6 ft at
8 seconds, becoming SE 5 ft at 8 seconds. A slight chance of
showers early this morning.
.TONIGHT...SW winds 10 to 15 kt. Seas 4 ft. Wave Detail: SE 4 ft
at 8 seconds. A chance of showers. A chance of tstms, mainly in
the evening.
.WED...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
8 seconds and SW 2 ft at 4 seconds. A chance of showers in the
morning.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 8 seconds and SW 2 ft at 4 seconds. A slight chance of
showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and SW 2 ft at 4 seconds. A slight chance of showers
in the morning.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$