Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 201055
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
655 AM EDT Fri Apr 20 2018

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

AMZ300-202215-
655 AM EDT Fri Apr 20 2018

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Cool and dry high pressure will build into the region today
through Saturday. A low pressure system will approach the area
late Sunday and will then slowly move up the coast through the
middle of next week. Weak high pressure will return late next
week.

$$

AMZ330-202215-
Charleston Harbor-
655 AM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...

.TODAY...NE winds 15 to 20 kt with gusts to 25 kt, becoming E
10 to 15 kt late. Waves 1 to 2 ft.
.TONIGHT...E winds 10 kt.
.SAT...E winds 10 to 15 kt.
.SAT NIGHT...E winds 5 to 10 kt.
.SUN...E winds 5 to 10 kt, increasing to 15 kt in the afternoon.
A slight chance of showers in the afternoon.
.SUN NIGHT...E winds 10 to 15 kt. Showers likely.
.MON...E winds 15 to 20 kt. Waves 1 to 2 ft. Showers.
.MON NIGHT...E winds 15 to 20 kt. Waves 1 to 2 ft. Showers likely
with a slight chance of tstms.
.TUE...S winds 10 kt. A chance of showers.
.TUE NIGHT...SW winds 5 to 10 kt. A chance of showers.

Mariners are reminded that winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 65 degrees.

$$

AMZ350-202215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
655 AM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds 20 to 25 kt with gusts to 30 kt, diminishing to
15 to 20 kt with gusts to 25 kt this afternoon. Seas 4 to 6 ft,
subsiding to 3 to 5 ft this afternoon.
.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft.
.SAT...NE winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. A slight chance of showers in the afternoon.
.SUN NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. A chance of showers.
.MON...E winds 20 to 25 kt. Seas 7 to 9 ft. Showers.
.MON NIGHT...E winds 20 to 25 kt. Seas 9 to 11 ft. Showers likely
with a slight chance of tstms.
.TUE...S winds 15 to 20 kt. Seas 7 to 9 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. A chance of
showers.

Mariners are reminded that winds and seas higher in and near tstms.

$$

AMZ352-202215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
655 AM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.TODAY...NE winds 20 to 25 kt with gusts to 30 kt, diminishing to
15 to 20 kt late. Seas 4 to 6 ft, subsiding to 3 to 5 ft late.
.TONIGHT...E winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.SUN NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. Showers likely.
.MON...E winds 20 to 25 kt. Seas 7 to 9 ft. Showers.
.MON NIGHT...SE winds 20 to 25 kt. Seas 7 to 9 ft. Showers likely
with a slight chance of tstms.
.TUE...S winds 10 to 15 kt. Seas 5 to 7 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 to 6 ft. A chance of
showers.

Mariners are reminded that winds and seas higher in and near tstms.

$$

AMZ354-202215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
655 AM EDT Fri Apr 20 2018

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

.TODAY...NE winds 20 to 25 kt with gusts to 30 kt. Seas 4 to
6 ft.
.TONIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft.
.SAT...E winds 15 to 20 kt. Seas 4 to 5 ft.
.SAT NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 4 to 5 ft.
.SUN...E winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. A slight chance of showers in the morning, then a
chance of showers in the afternoon.
.SUN NIGHT...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft, building to 5 to 7 ft after midnight. Showers likely.
.MON...E winds 20 to 25 kt. Seas 6 to 8 ft. Showers.
.MON NIGHT...SE winds 15 to 20 kt. Seas 6 to 8 ft. Showers likely
with a slight chance of tstms.
.TUE...SW winds 10 kt. Seas 4 to 6 ft. A chance of showers.
.TUE NIGHT...SW winds 10 kt. Seas 4 to 5 ft. A slight chance of
showers.

Mariners are reminded that winds and seas higher in and near tstms.

$$

AMZ374-202215-
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
655 AM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

.TODAY...NE winds 20 to 25 kt with gusts to 30 kt. Seas 7 to
9 ft, subsiding to 6 to 8 ft this afternoon.
.TONIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to
7 ft, subsiding to 4 to 6 ft after midnight.
.SAT...E winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
building to 5 to 6 ft in the afternoon.
.SAT NIGHT...E winds 15 to 20 kt. Seas 5 ft.
.SUN...E winds 15 to 20 kt. Seas 5 ft. A slight chance of showers
in the morning, then a chance of showers in the afternoon.
.SUN NIGHT...E winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Seas 5 to 7 ft, building to 6 to 8 ft after midnight.
Showers likely.
.MON...E winds 20 to 25 kt. Seas 9 to 11 ft. Showers.
.MON NIGHT...SE winds 20 to 25 kt. Seas 9 to 11 ft. Showers
likely with a slight chance of tstms.
.TUE...SW winds 10 to 15 kt. Seas 7 to 9 ft. A chance of showers.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 5 to 7 ft. A slight
chance of showers.

Mariners are reminded that winds and seas higher in and near tstms.

$$



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