411
FZUS52 KCHS 181945
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
344 PM EDT Thu Jul 18 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

AMZ300-190800-
344 PM EDT Thu Jul 18 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will approach our region on Friday and likely stall
to our north and west through the weekend. High pressure will
return next week, with weak troughing inland.

$$

AMZ330-190800-
Charleston Harbor-
344 PM EDT Thu Jul 18 2024

.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight. A slight chance of showers and
tstms late this evening. A chance of showers and tstms after
midnight.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts to
20 kt in the afternoon. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.FRI NIGHT...SW winds 10 kt. Showers and tstms likely.
.SAT...SW winds 10 to 15 kt. Showers and tstms likely.
.SAT NIGHT...S winds 10 to 15 kt. Showers and tstms likely,
mainly in the evening.
.SUN...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. A chance of showers and tstms in the morning, then
showers and tstms likely in the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Showers and tstms likely,
mainly in the evening.
.MON...S winds 10 to 15 kt. Showers and tstms likely.
.MON NIGHT...S winds 10 to 15 kt. A chance of showers and tstms.
.TUE...S winds 10 to 15 kt. Showers and tstms likely.
.TUE NIGHT...S winds 10 to 15 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 87 degrees.

$$

AMZ350-190800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
344 PM EDT Thu Jul 18 2024

.TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt, diminishing
to 10 to 15 kt late. Seas 3 to 4 ft. Wave Detail: S 4 ft at
5 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms late this evening. A chance of showers and tstms after
midnight.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 9 seconds. A chance of tstms. A
chance of showers.
.FRI NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 ft. Wave
Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. Showers and
tstms likely.
.SAT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at
5 seconds and SE 2 ft at 8 seconds. Showers and tstms likely.
.SAT NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 ft. Wave
Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of
showers and tstms.
.SUN...SW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and S
2 ft at 5 seconds. Showers and tstms likely.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms in the evening, then showers and tstms likely
after midnight.
.MON...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-190800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
344 PM EDT Thu Jul 18 2024

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

Winds and seas higher in and near tstms.

$$

AMZ354-190800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
344 PM EDT Thu Jul 18 2024

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 4 seconds and SE 2 ft at 8 seconds. A slight chance of
showers and tstms.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and
S 2 ft at 5 seconds. A chance of tstms. A chance of showers.
.FRI NIGHT...S 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.
.SAT...S 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.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 8 seconds.
A chance of showers and tstms.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds. A chance of showers and tstms in the morning, then
showers and tstms likely in the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely, mainly in the evening.
.MON...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.TUE...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-190800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
344 PM EDT Thu Jul 18 2024

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 4 seconds and SE 3 ft at 8 seconds. A slight chance of
showers and tstms after midnight. A chance of showers and tstms
late.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A chance of tstms. A
chance of showers.
.FRI NIGHT...S winds 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 9 seconds. A
chance of showers and tstms in the evening, then showers and
tstms likely after midnight.
.SAT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds and S 2 ft at 5 seconds. A chance of showers and
tstms.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms.
.SUN...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
8 seconds. A chance of showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.MON...S winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.TUE...S winds 10 to 15 kt. Seas 4 ft. A chance of showers and
tstms.
.TUE NIGHT...S winds 15 kt. Seas 4 ft. A chance of showers and
tstms.

Winds and seas higher in and near tstms.

$$