FZUS52 KCHS 231031
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
631 AM EDT Wed Apr 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
AMZ300-232330-
631 AM EDT Wed Apr 23 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will become stationary over or near the area today
into Thursday, lifting north by Friday. A cold front will move
through Saturday night or Sunday, with high pressure to build
from the north early next week.
$$
AMZ330-232330-
Charleston Harbor-
631 AM EDT Wed Apr 23 2025
.TODAY...NW winds around 5 kt, becoming S 5 kt late this morning,
then increasing to 5 to 10 kt this afternoon. A chance of showers
and tstms this afternoon.
.TONIGHT...E winds 5 kt. A chance of showers with a slight chance
of tstms in the evening.
.THU...E winds 5 kt, increasing to 10 kt in the afternoon. A
chance of showers. A slight chance of tstms in the morning, then
a chance of tstms in the afternoon.
.THU NIGHT...E winds 5 to 10 kt. A chance of showers and tstms in
the evening.
.FRI...SE winds 5 to 10 kt.
.FRI NIGHT...S winds 5 kt.
.SAT...SW winds 5 to 10 kt. A chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
.SUN...NE winds 10 kt. A slight chance of showers.
.SUN NIGHT...NE winds 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 71 degrees.
$$
AMZ350-232330-
Waters from South Santee River to Edisto Beach SC out 20 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...NW winds 5 to 10 kt, becoming S late this morning. Seas
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms late.
.TONIGHT...E winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds. A chance of showers with a slight chance of tstms.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds. A slight chance of showers and tstms in the
evening.
.FRI...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
9 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-232330-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...SW winds 5 to 10 kt becoming SE. Seas 2 ft. Wave Detail:
SE 2 ft at 8 seconds and SW 1 foot at 4 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and SE 1 foot at 5 seconds. A slight chance of showers.
A slight chance of tstms in the afternoon.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 1 foot at 5 seconds. A slight chance of
showers and tstms in the evening.
.FRI...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds and SE 1 foot at 5 seconds.
.FRI NIGHT...S winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ354-232330-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
631 AM EDT Wed Apr 23 2025
.TODAY...Variable winds 5 to 10 kt, becoming SE this afternoon.
Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8
seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
5 seconds and E 2 ft at 8 seconds. A slight chance of showers.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 1 foot at 5 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 9 seconds and SE 1 foot at 5 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ374-232330-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...S winds 5 to 10 kt, becoming E early this afternoon,
then becoming SE late. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9
seconds and SE 2 ft at 4 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and SE 1 foot at 5 seconds.
.FRI...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
9 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 3 ft.
.SAT NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers with
a slight chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.
.SUN NIGHT...NE winds 15 kt. Seas 4 to 6 ft. A slight chance of
showers.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
631 AM EDT Wed Apr 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
AMZ300-232330-
631 AM EDT Wed Apr 23 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will become stationary over or near the area today
into Thursday, lifting north by Friday. A cold front will move
through Saturday night or Sunday, with high pressure to build
from the north early next week.
$$
AMZ330-232330-
Charleston Harbor-
631 AM EDT Wed Apr 23 2025
.TODAY...NW winds around 5 kt, becoming S 5 kt late this morning,
then increasing to 5 to 10 kt this afternoon. A chance of showers
and tstms this afternoon.
.TONIGHT...E winds 5 kt. A chance of showers with a slight chance
of tstms in the evening.
.THU...E winds 5 kt, increasing to 10 kt in the afternoon. A
chance of showers. A slight chance of tstms in the morning, then
a chance of tstms in the afternoon.
.THU NIGHT...E winds 5 to 10 kt. A chance of showers and tstms in
the evening.
.FRI...SE winds 5 to 10 kt.
.FRI NIGHT...S winds 5 kt.
.SAT...SW winds 5 to 10 kt. A chance of showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
.SUN...NE winds 10 kt. A slight chance of showers.
.SUN NIGHT...NE winds 10 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 71 degrees.
$$
AMZ350-232330-
Waters from South Santee River to Edisto Beach SC out 20 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...NW winds 5 to 10 kt, becoming S late this morning. Seas
2 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms late.
.TONIGHT...E winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds. A chance of showers with a slight chance of tstms.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds. A slight chance of showers and tstms in the
evening.
.FRI...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
9 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-232330-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...SW winds 5 to 10 kt becoming SE. Seas 2 ft. Wave Detail:
SE 2 ft at 8 seconds and SW 1 foot at 4 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and SE 1 foot at 5 seconds. A slight chance of showers.
A slight chance of tstms in the afternoon.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 1 foot at 5 seconds. A slight chance of
showers and tstms in the evening.
.FRI...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds and SE 1 foot at 5 seconds.
.FRI NIGHT...S winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ354-232330-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
631 AM EDT Wed Apr 23 2025
.TODAY...Variable winds 5 to 10 kt, becoming SE this afternoon.
Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8
seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
5 seconds and E 2 ft at 8 seconds. A slight chance of showers.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 1 foot at 5 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 9 seconds and SE 1 foot at 5 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A slight
chance of showers.
Winds and seas higher in and near tstms.
$$
AMZ374-232330-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
631 AM EDT Wed Apr 23 2025
.TODAY...S winds 5 to 10 kt, becoming E early this afternoon,
then becoming SE late. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9
seconds and SE 2 ft at 4 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and SE 1 foot at 5 seconds.
.FRI...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
9 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 9 seconds.
.SAT...SW winds 5 to 10 kt. Seas 3 ft.
.SAT NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers with
a slight chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of
showers and tstms.
.SUN NIGHT...NE winds 15 kt. Seas 4 to 6 ft. A slight chance of
showers.
Winds and seas higher in and near tstms.
$$