FZUS52 KCHS 301920
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
320 PM EDT Wed Apr 30 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
AMZ300-010815-
320 PM EDT Wed Apr 30 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through the end of the week. A cold
front will affect the area over the weekend, then potentially
linger nearby into early next week.
$$
AMZ330-010815-
Charleston Harbor-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 15 kt with gusts to 20 kt early, becoming SW 5
to 10 kt late. Waves 1 to 2 ft early.
.THU...S winds 10 kt.
.THU NIGHT...S winds 5 to 10 kt.
.FRI...S winds 5 to 10 kt.
.FRI NIGHT...S winds 5 to 10 kt.
.SAT...S winds 10 kt. A chance of showers in the afternoon.
.SAT NIGHT...S winds 5 to 10 kt. A chance of showers and tstms.
.SUN...NE winds 5 to 10 kt. A chance of showers and tstms.
.SUN NIGHT...NE winds 10 kt. A chance of showers.
.MON...NE winds 10 kt. A chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. A chance of showers.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 75 degrees.
$$
AMZ350-010815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and S 2 ft at 3 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds and E 2 ft at 8 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds. A chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SUN...NE winds 10 kt. Seas 4 to 5 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ352-010815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
E 3 ft at 8 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds.
.FRI...S winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds
and S 2 ft at 5 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds.
.SAT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at
7 seconds. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft after midnight. A chance of showers and tstms.
.SUN...NE winds 10 kt. Seas 3 to 4 ft. A chance of showers and
tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ354-010815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
320 PM EDT Wed Apr 30 2025
.TONIGHT...SE winds 10 kt, becoming S 10 to 15 kt late this
evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2
ft at 3 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. Wave Detail: S 3 ft at 4 seconds and E
3 ft at 8 seconds, becoming S 3 ft at 5 seconds and E 2 ft at
8 seconds.
.FRI...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
8 seconds and S 2 ft at 5 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds. A slight chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. A chance of showers and tstms.
.SUN...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ374-010815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at
5 seconds and E 3 ft at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds. A slight chance of
showers after midnight.
.SAT...S winds 10 to 15 kt. Seas 4 ft. Wave Detail: SE 3 ft at
7 seconds. A slight chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
tstms. A chance of showers in the evening, then showers likely
after midnight.
.SUN...NE winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Showers likely.
.MON...NE winds 10 to 15 kt. Seas 7 to 9 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
320 PM EDT Wed Apr 30 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
AMZ300-010815-
320 PM EDT Wed Apr 30 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through the end of the week. A cold
front will affect the area over the weekend, then potentially
linger nearby into early next week.
$$
AMZ330-010815-
Charleston Harbor-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 15 kt with gusts to 20 kt early, becoming SW 5
to 10 kt late. Waves 1 to 2 ft early.
.THU...S winds 10 kt.
.THU NIGHT...S winds 5 to 10 kt.
.FRI...S winds 5 to 10 kt.
.FRI NIGHT...S winds 5 to 10 kt.
.SAT...S winds 10 kt. A chance of showers in the afternoon.
.SAT NIGHT...S winds 5 to 10 kt. A chance of showers and tstms.
.SUN...NE winds 5 to 10 kt. A chance of showers and tstms.
.SUN NIGHT...NE winds 10 kt. A chance of showers.
.MON...NE winds 10 kt. A chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. A chance of showers.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 75 degrees.
$$
AMZ350-010815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and S 2 ft at 3 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds and E 2 ft at 8 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds. A chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SUN...NE winds 10 kt. Seas 4 to 5 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ352-010815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
E 3 ft at 8 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds.
.FRI...S winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds
and S 2 ft at 5 seconds.
.FRI NIGHT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds.
.SAT...S winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at
7 seconds. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft after midnight. A chance of showers and tstms.
.SUN...NE winds 10 kt. Seas 3 to 4 ft. A chance of showers and
tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ354-010815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
320 PM EDT Wed Apr 30 2025
.TONIGHT...SE winds 10 kt, becoming S 10 to 15 kt late this
evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2
ft at 3 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. Wave Detail: S 3 ft at 4 seconds and E
3 ft at 8 seconds, becoming S 3 ft at 5 seconds and E 2 ft at
8 seconds.
.FRI...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
8 seconds and S 2 ft at 5 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds. A slight chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. A chance of showers and tstms.
.SUN...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ374-010815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
320 PM EDT Wed Apr 30 2025
.TONIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds.
.FRI...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at
5 seconds and E 3 ft at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 8 seconds. A slight chance of
showers after midnight.
.SAT...S winds 10 to 15 kt. Seas 4 ft. Wave Detail: SE 3 ft at
7 seconds. A slight chance of showers.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
tstms. A chance of showers in the evening, then showers likely
after midnight.
.SUN...NE winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Showers likely.
.MON...NE winds 10 to 15 kt. Seas 7 to 9 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 7 to 9 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$