665
FZUS52 KCHS 201418
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1018 AM EDT Thu Jun 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

AMZ300-210245-
1018 AM EDT Thu Jun 20 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the region today. A tropical
wave will impact the Southeast U.S coast tonight into Friday.
High pressure will return over the weekend.

$$

AMZ330-210245-
Charleston Harbor-
1018 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.REST OF TODAY...E winds 15 to 20 kt with gusts to 25 kt. Waves
1 to 2 ft. A slight chance of showers late this morning.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. A chance of showers with a slight chance of tstms after
midnight.
.FRI...E winds 10 to 15 kt. A chance of showers and tstms.
.FRI NIGHT...E winds 10 kt, becoming SE after midnight. A chance
of showers and tstms.
.SAT...SE winds 5 kt, increasing to 10 kt in the afternoon. A
chance of showers and tstms.
.SAT NIGHT...S winds 10 kt. A chance of showers and tstms.
.SUN...S winds 10 to 15 kt. A chance of showers and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms.
.MON...SW winds 10 to 15 kt. Showers and tstms likely.
.MON NIGHT...SW 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 82 degrees.

$$

AMZ350-210245-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1018 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TODAY...E winds 15 to 20 kt with gusts to 25 kt. Seas
5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of
showers late this morning.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft. Wave Detail: E 6 ft at 9 seconds. A slight chance of tstms.
A slight chance of showers in the evening, then a chance of
showers after midnight.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft, subsiding to 4 to
6 ft in the afternoon. Wave Detail: E 6 ft at 9 seconds. A chance
of tstms. Showers likely, mainly in the morning.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: E 5 ft at 9 seconds,
becoming E 4 ft at 9 seconds. A chance of showers and tstms.
.SAT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. A chance of showers and tstms.
.SAT NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A chance of showers and tstms.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.MON NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ352-210245-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1018 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Seas
5 to 6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of
showers late this morning and early afternoon.
.TONIGHT...NE winds 20 kt with gusts to 25 kt. Seas 5 to 6 ft,
building to 5 to 7 ft after midnight. Wave Detail: E 6 ft at
9 seconds. A slight chance of tstms. A slight chance of showers
in the evening, then a chance of showers after midnight.
.FRI...E winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 5 to 6 ft, subsiding to 4 to 6 ft in the
afternoon. Wave Detail: E 6 ft at 9 seconds. A chance of tstms.
Showers likely, mainly in the morning.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: E 5 ft at 9 seconds,
becoming E 4 ft at 9 seconds. A chance of showers and tstms.
.SAT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. A chance of showers and tstms.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds. A chance of showers and tstms.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ354-210245-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1018 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TODAY...NE winds 20 kt with gusts to 25 kt. Seas 5 to
6 ft. Wave Detail: E 6 ft at 8 seconds. A slight chance of
showers late this morning and early afternoon.
.TONIGHT...NE winds 20 to 25 kt. Seas 5 to 6 ft, building to 5 to
7 ft after midnight. Wave Detail: E 6 ft at 8 seconds, becoming E
6 ft at 9 seconds. A chance of showers with a slight chance of
tstms.
.FRI...E winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft,
subsiding to 4 to 6 ft in the afternoon. Wave Detail: E 6 ft at
9 seconds. Showers likely with a chance of tstms.
.FRI NIGHT...E winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.
Wave Detail: E 5 ft at 9 seconds, becoming E 4 ft at 9 seconds.
Showers likely with a chance of tstms.
.SAT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds. Showers likely with a chance of tstms.
.SAT NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A chance of showers and tstms.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers and tstms
likely.
.MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ374-210245-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1018 AM EDT Thu Jun 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TODAY...NE winds 20 kt with gusts to 25 kt. Seas 6 to
7 ft, building to 6 to 8 ft this afternoon. Wave Detail: E 7 ft
at 8 seconds. A slight chance of showers.
.TONIGHT...NE winds 20 kt with gusts to 25 kt. Seas 6 to 8 ft,
building to 7 to 9 ft after midnight. Wave Detail: E 7 ft at
9 seconds. A slight chance of tstms. A chance of showers in the
evening, then showers likely after midnight.
.FRI...E winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 6 to 8 ft, subsiding to 6 to 7 ft in the
afternoon. Wave Detail: E 7 ft at 9 seconds. A chance of tstms.
Showers.
.FRI NIGHT...SE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 5 to 6 ft, subsiding to 4 to 5 ft after
midnight. Wave Detail: E 6 ft at 9 seconds, becoming E 5 ft at
9 seconds. Showers likely with a chance of tstms.
.SAT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. Showers likely with a chance of tstms.
.SAT NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 8 seconds. A chance of showers and tstms.
.SUN...S winds 10 kt. Seas 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 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.MON NIGHT...SW winds 15 kt. Seas 3 ft. Showers and tstms likely.


Winds and seas higher in and near tstms.

$$