176
FZUS52 KCHS 180644
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
244 AM 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

AMZ300-181915-
244 AM EDT Thu Jul 18 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. A cold front will approach the region Friday and likely
stall nearby, before high pressure returns next week.

$$

AMZ330-181915-
Charleston Harbor-
244 AM EDT Thu Jul 18 2024

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

$$

AMZ350-181915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
244 AM EDT Thu Jul 18 2024

.TODAY...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 slight chance of
showers and tstms early this morning, then a chance of showers and
tstms late this morning and early afternoon. A slight chance of
showers and tstms late.
.TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. 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 and tstms likely, mainly in the morning.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 6 seconds and SE 2 ft at 9 seconds. Showers and tstms
likely.
.SAT...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. Showers and tstms likely.
.SAT 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 9 seconds. A
chance of showers and tstms.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. 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...SW 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.

Winds and seas higher in and near tstms.

$$

AMZ352-181915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
244 AM EDT Thu Jul 18 2024

.TODAY...SW winds 10 to 15 kt, becoming S with gusts to 20 kt
late. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE
2 ft at 8 seconds. A slight chance of showers and tstms until
late afternoon, then a chance of showers and tstms late.
.TONIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. 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 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. A chance of showers and tstms.
.FRI NIGHT...S 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.
.SAT...S winds 10 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. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. A chance of showers and tstms.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. 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.

Winds and seas higher in and near tstms.

$$

AMZ354-181915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
244 AM EDT Thu Jul 18 2024

.TODAY...SW winds 10 to 15 kt, becoming S late. Seas 2 to 3 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms until late afternoon, then a
chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 5 seconds and SE 2 ft at 8 seconds. Showers and tstms
likely, mainly in the evening.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. 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.
.FRI NIGHT...S 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 3 ft at 9 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 2 ft at 8 seconds. A chance of showers and
tstms.
.SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. A chance of showers and tstms.
.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. A chance of showers
and tstms.
.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.

Winds and seas higher in and near tstms.

$$

AMZ374-181915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
244 AM EDT Thu Jul 18 2024

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

Winds and seas higher in and near tstms.

$$