643
FZUS52 KCHS 300659
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
259 AM EDT Tue Apr 30 2024

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

AMZ300-301915-
259 AM EDT Tue Apr 30 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through much of the week. A weak
disturbance will move through today and Wednesday, then a weak
cold front will stall in the vicinity this weekend.

$$

AMZ330-301915-
Charleston Harbor-
259 AM EDT Tue Apr 30 2024

.TODAY...S winds 10 kt, increasing to 10 to 15 kt with gusts to 20
kt this afternoon. Waves building to 1 to 2 ft this afternoon.
.TONIGHT...S winds 5 to 10 kt. A chance of showers and tstms
after midnight.
.WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. A chance of showers and tstms, mainly in the morning.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
.THU...N winds 5 to 10 kt, becoming E 10 to 15 kt with gusts to
20 kt in the afternoon.
.THU NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight.
.FRI...E winds 10 to 15 kt.
.FRI NIGHT...SE winds 10 kt.
.SAT...SE winds 10 to 15 kt. A slight chance of showers and
tstms.
.SAT NIGHT...SE winds 10 to 15 kt. A slight chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 71 degrees.

$$

AMZ350-301915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
259 AM EDT Tue Apr 30 2024

.TODAY...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6
seconds and E 2 ft at 9 seconds. A slight chance of showers and
tstms early this afternoon.
.TONIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
6 seconds and E 2 ft at 10 seconds. A chance of showers and tstms
after midnight.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 6 seconds and E 2 ft at 12 seconds. A chance of showers and
tstms in the morning, then a slight chance of showers in the
afternoon.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and E 1 foot at
11 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
10 seconds.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 foot at 10 seconds.
.FRI...E winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 ft.
.SAT NIGHT...SE winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ352-301915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
259 AM EDT Tue Apr 30 2024

.TODAY...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6
seconds and E 2 ft at 9 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds and E 2 ft at 10 seconds. A slight chance of
showers and tstms in the evening, then a chance of showers and
tstms after midnight.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 6 seconds and E 2 ft at 12 seconds. A slight chance of showers
and tstms in the morning.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
12 seconds.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
11 seconds.
.THU NIGHT...E winds 10 kt, diminishing to 5 kt after midnight.
Seas 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
10 seconds.
.FRI...E winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SE winds 10 kt. Seas 2 ft.
.SAT...SE winds 10 kt. Seas 2 ft.
.SAT NIGHT...SE winds 10 kt. Seas 2 ft. A slight chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ354-301915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
259 AM EDT Tue Apr 30 2024

.TODAY...S winds 10 kt, becoming SE 10 to 15 kt late. Seas 2 to 3
ft. Wave Detail: SE 3 ft at 6 seconds and E 2 ft at 9 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds and E 2 ft at 9 seconds. A slight chance of
showers and tstms.
.WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and E 2 ft at
11 seconds.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 6 seconds and E 1 foot at 12 seconds.
.THU...N winds 5 kt, becoming E in the afternoon. Seas 2 ft. Wave
Detail: SE 2 ft at 6 seconds and E 1 foot at 11 seconds.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 foot at 10 seconds.
.FRI...E winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SE winds 10 kt. Seas 2 ft.
.SAT...SE winds 10 kt. Seas 2 ft.
.SAT NIGHT...SE winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-301915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
259 AM EDT Tue Apr 30 2024

.TODAY...S winds 10 kt, becoming SE late. Seas 3 to 4 ft. Wave
Detail: SE 3 ft at 6 seconds and E 2 ft at 9 seconds. A slight
chance of showers and tstms.
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 6 seconds and E 2 ft at 10 seconds. A chance of showers
and tstms after midnight.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 6 seconds and E 2 ft at 12 seconds. A slight chance of showers
and tstms in the morning.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 2 ft
at 6 seconds and E 2 ft at 12 seconds. A slight chance of
showers. A slight chance of tstms after midnight.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
11 seconds.
.THU NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 foot at 10 seconds.
.FRI...E winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SE winds 10 kt. Seas 2 to 3 ft.
.SAT...SE winds 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$