407
FZUS52 KCHS 122253
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
653 PM EDT Sun May 12 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

AMZ300-131130-
653 PM EDT Sun May 12 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will exit the coast early Monday with a storm
system approaching from the west. An active weather pattern will
start on Monday with multiple rounds of showers and thunderstorms
possible through Wednesday.

$$

AMZ330-131130-
Charleston Harbor-
653 PM EDT Sun May 12 2024

.TONIGHT...S winds 10 to 15 kt, becoming light and variable.
.MON...SE winds 5 kt, becoming S in the afternoon. A chance of
showers in the afternoon.
.MON NIGHT...S winds 10 kt, increasing to 15 kt with gusts to
20 kt after midnight. A slight chance of tstms. A chance of
showers in the evening, then showers likely after midnight.
.TUE...S winds 15 kt with gusts to 20 kt. Showers with a chance
of tstms.
.TUE NIGHT...SW winds 15 kt with gusts to 20 kt. A chance of
tstms. Showers.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. A chance of
showers and tstms.
.WED NIGHT...W winds 10 to 15 kt. A slight chance of showers and
tstms in the evening.
.THU...NW winds 10 kt.
.THU NIGHT...SE winds 5 to 10 kt.
.FRI...SE winds 5 to 10 kt. A chance of showers and tstms.
.FRI NIGHT...S winds 10 kt. A chance of showers and tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 77 degrees.

$$

AMZ350-131130-
Waters from South Santee River to Edisto Beach SC out 20 NM-
653 PM EDT Sun May 12 2024

.TONIGHT...S winds 10 to 15 kt, becoming SE 5 to 10 kt. Seas 2
ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds.
.MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds and SW 1 foot at 3 seconds. A slight chance of showers
in the afternoon.
.MON NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 2 ft
at 4 seconds and E 1 foot at 9 seconds, becoming S 4 ft at
5 seconds and E 1 foot at 9 seconds. A slight chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft,
building to 4 to 6 ft in the afternoon. Wave Detail: S 4 ft at
6 seconds and E 1 foot at 9 seconds, becoming S 6 ft at 7 seconds
and E 1 foot at 9 seconds. Showers with a chance of tstms.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 6 ft after midnight. Wave Detail: S 6 ft
at 7 seconds and E 1 foot at 9 seconds, becoming S 6 ft at
8 seconds and E 1 foot at 9 seconds. A chance of tstms. Showers.
.WED...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 6 ft at
8 seconds and E 1 foot at 9 seconds, becoming S 5 ft at 8 seconds
and E 1 foot at 9 seconds. A chance of tstms. Showers likely,
mainly in the morning.
.WED NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.
A slight chance of showers and tstms in the evening.
.THU...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ352-131130-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
653 PM EDT Sun May 12 2024

.TONIGHT...S 10 to 15 kt, becoming SW 5 to 10 kt. Seas 2 ft. Wave
Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds.
.MON...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds and S 1 foot at 3 seconds. A chance of showers in the
afternoon.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight.
Wave Detail: S 3 ft at 4 seconds and E 1 foot at 8 seconds,
becoming S 4 ft at 5 seconds and E 1 foot at 8 seconds. A slight
chance of tstms. A chance of showers in the evening, then showers
likely after midnight.
.TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft
at 6 seconds and E 1 foot at 9 seconds. Showers with a chance of
tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S
5 ft at 7 seconds and E 1 foot at 8 seconds. A chance of tstms.
Showers.
.WED...SW winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave
Detail: S 5 ft at 7 seconds. A chance of tstms. Showers likely,
mainly in the morning.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance
of showers and tstms in the evening.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
.FRI...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-131130-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
653 PM EDT Sun May 12 2024

.TONIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 2
ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 8 seconds. A chance of showers with a
slight chance of tstms in the afternoon.
.MON NIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 5 seconds and E 1 foot at
8 seconds. Showers likely with a slight chance of tstms.
.TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft,
subsiding to 3 to 4 ft in the afternoon. Wave Detail: S 4 ft at
5 seconds and E 1 foot at 9 seconds, becoming SE 4 ft at
6 seconds and E 1 foot at 9 seconds. Showers with a chance of
tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: S
4 ft at 6 seconds. A chance of tstms. Showers.
.WED...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: S 4 ft at 7 seconds. A chance of tstms. Showers likely,
mainly in the morning.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms in the evening.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft.
.FRI...S winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-131130-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
653 PM EDT Sun May 12 2024

.TONIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at
8 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and
NE 2 ft at 8 seconds. A chance of showers in the afternoon.
.MON NIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 3 ft
at 5 seconds and E 2 ft at 8 seconds, becoming E 4 ft at
7 seconds. Showers likely with a slight chance of tstms.
.TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft.
Wave Detail: S 5 ft at 6 seconds and E 1 foot at 9 seconds.
Showers with a chance of tstms.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 6 ft after midnight. Wave Detail: S 5 ft
at 7 seconds and E 1 foot at 9 seconds, becoming S 5 ft at
7 seconds and SW 3 ft at 4 seconds. A chance of tstms. Showers.
.WED...SW winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to 4 to
5 ft in the afternoon. Wave Detail: S 5 ft at 6 seconds and E
1 foot at 9 seconds, becoming S 5 ft at 7 seconds and E 1 foot at
9 seconds. A chance of showers and tstms.
.WED NIGHT...W winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft,
subsiding to 3 to 4 ft after midnight. A slight chance of showers
and tstms.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.FRI...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and
tstms.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$