FZUS52 KCHS 220939
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
539 AM EDT Wed Apr 22 2026
South Santee River SC to Altamaha Sound GA out 60 NM, including
Charleston Harbor and Grays Reef National Marine Sanctuary
AMZ300-222300-
539 AM EDT Wed Apr 22 2026
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will linger over the coastal waters through the
week.
$$
AMZ340-222300-
Charleston Harbor-
539 AM EDT Wed Apr 22 2026
.TODAY...Light and variable winds, becoming S 5 to 10 kt.
.TONIGHT...SW winds 5 to 10 kt.
.THU...SW winds 5 to 10 kt.
.THU NIGHT...SW winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 to 10 kt.
.SAT...SW winds 5 to 10 kt. A slight chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt. Showers likely with a slight
chance of tstms.
.SUN...NE winds 5 to 10 kt. A chance of showers with a slight
chance of tstms.
.SUN NIGHT...NE winds 5 to 10 kt. A chance of showers.
Winds and waves higher in and near tstms.
$$
AMZ360-222300-
Coastal waters from South Santee River to Edisto Beach SC out
20 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 7 seconds.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SW 2 ft at 4 seconds and SE 1 foot at 8 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ362-222300-
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 8 seconds and SE 1 foot at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and S 1 foot at 3 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and E 1 foot at 10 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ364-222300-
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 8 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and E 2 ft at 8 seconds.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds and E
2 ft at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ380-222300-
Waters from South Santee River SC to Edisto Beach SC extending
from 20 to 60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt, becoming SW late. Seas 3 to 4 ft.
Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds and SW 2 ft at 3 seconds.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW
2 ft at 3 seconds and E 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW
3 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
.SUN...N winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ382-222300-
Waters from Edisto Beach SC to Savannah GA extending from 20 to
60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 kt, becoming SW this afternoon. Seas 3 ft.
Wave Detail: NE 3 ft at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: NE 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
8 seconds and E 1 foot at 9 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 4 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ384-222300-
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 kt, becoming W late this morning and early
afternoon, then becoming S 5 kt late. Seas 3 ft. Wave Detail: NE
2 ft at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: NE 2 ft at
8 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and E 2 ft at 8 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 8 seconds and E 2 ft at 9 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
539 AM EDT Wed Apr 22 2026
South Santee River SC to Altamaha Sound GA out 60 NM, including
Charleston Harbor and Grays Reef National Marine Sanctuary
AMZ300-222300-
539 AM EDT Wed Apr 22 2026
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will linger over the coastal waters through the
week.
$$
AMZ340-222300-
Charleston Harbor-
539 AM EDT Wed Apr 22 2026
.TODAY...Light and variable winds, becoming S 5 to 10 kt.
.TONIGHT...SW winds 5 to 10 kt.
.THU...SW winds 5 to 10 kt.
.THU NIGHT...SW winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 to 10 kt.
.SAT...SW winds 5 to 10 kt. A slight chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt. Showers likely with a slight
chance of tstms.
.SUN...NE winds 5 to 10 kt. A chance of showers with a slight
chance of tstms.
.SUN NIGHT...NE winds 5 to 10 kt. A chance of showers.
Winds and waves higher in and near tstms.
$$
AMZ360-222300-
Coastal waters from South Santee River to Edisto Beach SC out
20 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 7 seconds.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SW 2 ft at 4 seconds and SE 1 foot at 8 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ362-222300-
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 8 seconds and SE 1 foot at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and S 1 foot at 3 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and E 1 foot at 10 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ364-222300-
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 8 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: NE 2 ft at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and E 2 ft at 8 seconds.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds and E
2 ft at 8 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$
AMZ380-222300-
Waters from South Santee River SC to Edisto Beach SC extending
from 20 to 60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 to 10 kt, becoming SW late. Seas 3 to 4 ft.
Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds and SW 2 ft at 3 seconds.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW
2 ft at 3 seconds and E 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW
3 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
.SUN...N winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ382-222300-
Waters from Edisto Beach SC to Savannah GA extending from 20 to
60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 kt, becoming SW this afternoon. Seas 3 ft.
Wave Detail: NE 3 ft at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: NE 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.FRI...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
8 seconds and E 1 foot at 9 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 4 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
$$
AMZ384-222300-
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
539 AM EDT Wed Apr 22 2026
.TODAY...S winds 5 kt, becoming W late this morning and early
afternoon, then becoming S 5 kt late. Seas 3 ft. Wave Detail: NE
2 ft at 8 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: NE 2 ft at
8 seconds and SE 2 ft at 8 seconds.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 7 seconds and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and E 2 ft at 8 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 8 seconds and E 2 ft at 9 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT...SW winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.
Winds and seas higher in and near tstms.
$$