590
FZUS52 KCHS 120748
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
348 AM 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

AMZ300-122030-
348 AM EDT Sun May 12 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail into Monday. A storm system will
affect the area by the middle of the week. Another system could
arrive later in the week.

$$

AMZ330-122030-
Charleston Harbor-
348 AM EDT Sun May 12 2024

.TODAY...W winds 5 to 10 kt, becoming SW 10 kt in the afternoon.
.TONIGHT...SW winds 5 kt.
.MON...SE winds 5 to 10 kt. A slight chance of showers in the
afternoon.
.MON NIGHT...S winds 10 to 15 kt. A chance of tstms. A chance of
showers in the evening, then showers after midnight.
.TUE...S winds 15 to 20 kt with gusts to 25 kt. Waves 1 to 2 ft.
Showers with a chance of tstms.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. Showers with a chance of tstms.
.WED...SW winds 15 kt. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 kt.
.THU...W winds 10 kt.
.THU NIGHT...S winds 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 75 degrees.

$$

AMZ350-122030-
Waters from South Santee River to Edisto Beach SC out 20 NM-
348 AM EDT Sun May 12 2024

.TODAY...W winds 10 to 15 kt, becoming SW 10 kt in the afternoon.
Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 foot at 3
seconds.
.TONIGHT...SW winds 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 chance of tstms. A chance
of showers in the evening, then showers 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 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 5 to
6 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: S 5 ft
at 7 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.
.WED...SW winds 15 to 20 kt. Seas 4 to 6 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ352-122030-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
348 AM EDT Sun May 12 2024

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

Winds and seas higher in and near tstms.

$$

AMZ354-122030-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
348 AM EDT Sun May 12 2024

.TODAY...SW winds 5 to 10 kt, becoming S 10 kt in the afternoon.
Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and NE 1
foot at 6 seconds.
.TONIGHT...S winds 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
3 seconds and E 2 ft at 8 seconds. A slight chance of showers in
the morning, then 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. A chance of tstms. Showers.
.TUE...S winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: 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 with gusts to 25 kt. Seas 4 to
5 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 9 seconds.
Showers with a chance of tstms.
.WED...SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 10 kt. Seas 2 ft. A slight chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ374-122030-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
348 AM EDT Sun May 12 2024

.TODAY...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at
7 seconds and E 1 foot at 12 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at
8 seconds and SW 1 foot at 2 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
E 2 ft at 8 seconds. A slight chance of showers in the morning,
then a chance of showers with a slight chance of tstms in the
afternoon.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight.
Wave Detail: SE 4 ft at 4 seconds and E 2 ft at 8 seconds,
becoming SE 4 ft at 7 seconds. A chance of tstms. Showers.
.TUE...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft,
building to 5 to 6 ft in the afternoon. Wave Detail: S 4 ft at
6 seconds and E 3 ft at 9 seconds, becoming S 5 ft at 6 seconds
and E 2 ft at 9 seconds. Showers with a chance of tstms.
.TUE NIGHT...SW winds 15 to 20 kt with gusts to 30 kt. Seas 5 to
6 ft. Wave Detail: S 5 ft at 6 seconds and E 4 ft at 9 seconds.
Showers with a chance of tstms.
.WED...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 15 kt. Seas 3 to 4 ft. A slight chance of
showers and tstms.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...SE winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers.

Winds and seas higher in and near tstms.

$$