421
FZUS52 KCHS 170401
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1201 AM EDT Wed Jul 17 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

AMZ300-171715-
1201 AM EDT Wed Jul 17 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will persist offshore, while a weak trough resides
inland through mid week. A cold front will approach the region
late week and likely stall nearby, before high pressure returns
next week.

$$

AMZ330-171715-
Charleston Harbor-
1201 AM EDT Wed Jul 17 2024

.REST OF TONIGHT...SW winds 5 to 10 kt.
.WED...SW winds 10 to 15 kt. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. A chance
of showers and tstms.
.THU...SW winds 10 to 15 kt. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.THU NIGHT...SW winds 10 to 15 kt. Showers and tstms likely.
.FRI...SW winds 5 to 10 kt. Tstms likely. Showers.
.FRI NIGHT...S winds 10 kt. Showers with tstms likely.
.SAT...SW winds 5 to 10 kt. Showers and tstms likely.
.SAT NIGHT...SW winds 5 to 10 kt. Showers and tstms likely.
.SUN...SW winds 5 to 10 kt. Showers and tstms likely.
.SUN NIGHT...S winds 5 to 10 kt. Showers and tstms likely.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 87 degrees.

$$

AMZ350-171715-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1201 AM EDT Wed Jul 17 2024

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: SW 4 ft at 5 seconds and SE 2 ft at 8 seconds. A slight
chance of showers and tstms.
.WED...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 5 seconds and SE 2 ft at 9 seconds. A chance of showers and
tstms.
.WED NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft, subsiding to 3 to 4 ft after midnight. Wave Detail: S 4 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and
tstms.
.THU...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 6 seconds and SE 2 ft at 9 seconds. Showers and tstms likely.
.THU NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 5 seconds and SE 2 ft at 9 seconds. Showers and tstms
likely.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds. Showers with tstms likely.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers with
tstms likely.
.SAT...SW winds 10 kt. Seas 3 to 4 ft. Showers and tstms likely.
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 ft. Showers and tstms
likely.
.SUN...SW winds 5 to 10 kt. Seas 3 ft. Showers and tstms likely.
.SUN NIGHT...S winds 10 kt. Seas 3 ft. Showers and tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ352-171715-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1201 AM EDT Wed Jul 17 2024

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
chance of showers and tstms.
.WED NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: S 4 ft at 5 seconds and SE
3 ft at 8 seconds. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds. A
chance of showers and tstms in the morning, then showers and
tstms likely in the afternoon.
.THU NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds.
Showers and tstms likely.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. Showers and tstms likely.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and
tstms likely.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.SAT NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.SUN NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.

Winds and seas higher in and near tstms.

$$

AMZ354-171715-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1201 AM EDT Wed Jul 17 2024

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and
tstms.
.WED NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft,
subsiding to 2 to 3 ft after midnight. Wave Detail: S 4 ft at
5 seconds and SE 3 ft at 8 seconds, becoming S 3 ft at 5 seconds
and SE 3 ft at 8 seconds. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and
tstms in the morning, then showers and tstms likely in the
afternoon.
.THU NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 8 seconds.
Showers and tstms likely.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A chance of showers and
tstms in the morning, then showers and tstms likely in the
afternoon.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft. Showers and tstms
likely.
.SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.SUN NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers and tstms
likely.

Winds and seas higher in and near tstms.

$$

AMZ374-171715-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1201 AM EDT Wed Jul 17 2024

.REST OF TONIGHT...SW winds 15 kt with gusts to 20 kt. Seas 4 ft.
Wave Detail: S 4 ft at 5 seconds and E 3 ft at 8 seconds. A
slight chance of showers and tstms.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A chance of showers and
tstms.
.WED NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 4 ft at 5 seconds and SE 3 ft at 8 seconds. A
chance of showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and
tstms.
.THU NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 4 ft at 5 seconds and SE 3 ft at 8 seconds.
Showers and tstms likely.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. Showers and tstms likely.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and
tstms likely.
.SAT...S winds 10 kt. Seas 3 ft. Showers and tstms likely.
.SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft. Showers and tstms
likely.
.SUN...S winds 5 to 10 kt. Seas 3 to 4 ft. Showers and tstms
likely.
.SUN NIGHT...S winds 10 kt. Seas 3 to 4 ft. Showers and tstms
likely.

Winds and seas higher in and near tstms.

$$