801
FZUS52 KCHS 200457
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1257 AM EDT Mon May 20 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

AMZ300-201715-
1257 AM EDT Mon May 20 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will build in from the north tonight and persist
through most of this week. A series of upper level disturbances
will impact the area next weekend.

$$

AMZ330-201715-
Charleston Harbor-
1257 AM EDT Mon May 20 2024

.REST OF TONIGHT...NE winds 10 to 15 kt.
.MON...NE winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NE winds 10 kt.
.TUE...NE winds 10 kt, increasing to 15 kt with gusts to 20 kt in
the afternoon.
.TUE NIGHT...E winds 5 to 10 kt.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
.THU...SW winds 5 to 10 kt.
.THU NIGHT...S winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt. A slight chance of showers and tstms.
.FRI NIGHT...S winds 5 to 10 kt. A slight 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 76 degrees.

$$

AMZ350-201715-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1257 AM EDT Mon May 20 2024

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

Winds and seas higher in and near tstms.

$$

AMZ352-201715-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1257 AM EDT Mon May 20 2024

.REST OF TONIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: NE 3 ft at 5 seconds and S 1 foot at 5 seconds. Isolated
showers.
.MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft
at 6 seconds and S 1 foot at 5 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 7 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: E 3 ft at 7 seconds and SE
1 foot at 10 seconds.
.WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 ft.
.THU...SW winds 5 to 10 kt. Seas 2 ft.
.THU NIGHT...S winds 10 kt. Seas 2 ft.
.FRI...S winds 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-201715-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1257 AM EDT Mon May 20 2024

.REST OF TONIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: NE 3 ft at 4 seconds and SE 1 foot at 5 seconds. Scattered
showers, then isolated showers late.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 6 seconds and E 1 foot at 9 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 6 seconds and E 1 foot at 10 seconds.
.TUE...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: E 4 ft at 7 seconds.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds.
.WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 ft.
.THU...S winds 5 to 10 kt. Seas 2 ft.
.THU NIGHT...S winds 10 kt. Seas 2 to 3 ft.
.FRI...S winds 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-201715-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1257 AM EDT Mon May 20 2024

.REST OF TONIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: NE 4 ft at 5 seconds and S 1 foot at 5 seconds. Scattered
showers, then isolated showers late.
.MON...NE 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: NE 5 ft at
5 seconds and E 1 foot at 8 seconds, becoming NE 5 ft at
6 seconds and SE 1 foot at 10 seconds.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail:
NE 5 ft at 7 seconds. A slight chance of showers.
.TUE...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave
Detail: NE 5 ft at 7 seconds. A slight chance of showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: NE 5 ft at 7 seconds and
SE 1 foot at 10 seconds, becoming E 4 ft at 7 seconds and SE
1 foot at 10 seconds.
.WED...NE winds 5 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds
and SE 1 foot at 10 seconds.
.WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.

Winds and seas higher in and near tstms.

$$