Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 182320
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
720 PM EDT Mon Mar 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

AMZ300-191215-
720 PM EDT Mon Mar 18 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will build over the area tonight and prevail into
Thursday. A storm system could impact the area Friday and
Saturday, before high pressure returns early next week.

$$

AMZ330-191215-
Charleston Harbor-
720 PM EDT Mon Mar 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT TUESDAY...

.TONIGHT...W winds 20 to 25 kt early, becoming NW 20 to 25 kt
with gusts to 30 kt. Waves 1 to 2 ft early, building to 2 to 3 ft.
.TUE...NW winds 15 kt early, diminishing to 10 kt.
.TUE NIGHT...SW winds 10 kt.
.WED...W winds 10 kt.
.WED NIGHT...SW winds 10 kt, becoming W after midnight.
.THU...N winds 10 to 15 kt, becoming E with gusts to 20 kt in the
afternoon.
.THU NIGHT...E winds 10 to 15 kt with gusts to 20 kt. A chance of
showers after midnight.
.FRI...E winds 10 to 15 kt. Showers likely with a slight chance
of tstms.
.FRI NIGHT...NE winds 15 kt. Showers likely with a slight chance
of tstms.
.SAT...N winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers.
.SAT NIGHT...N winds 15 to 20 kt. Waves 1 to 2 ft. A slight
chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 63 degrees.

$$

AMZ350-191215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
720 PM EDT Mon Mar 18 2024

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt, becoming NW
25 to 30 kt with gusts to 40 kt late this evening. Seas 3 to
4 ft, building to 4 to 5 ft after midnight.
.TUE...N winds 20 to 25 kt, becoming NW 5 to 10 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon.
.TUE NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight.
.WED...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to
4 ft.
.THU...N winds 10 to 15 kt, becoming NE in the afternoon. Seas
2 to 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. A chance of showers
after midnight.
.FRI...E winds 15 kt. Seas 4 to 6 ft. Showers with a slight
chance of tstms.
.FRI NIGHT...NE winds 15 kt. Seas 6 to 8 ft. Showers likely with
a slight chance of tstms.
.SAT...N winds 15 to 20 kt. Seas 6 to 8 ft. A chance of showers.
.SAT NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$

AMZ352-191215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
720 PM EDT Mon Mar 18 2024

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...W winds 15 kt with gusts to 20 kt, becoming NW 25 to
30 kt with gusts to 35 kt late this evening. Seas 3 to 4 ft,
building to 4 to 5 ft after midnight.
.TUE...N winds 15 to 20 kt with gusts to 25 kt, becoming NW 5 to
10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in
the afternoon.
.TUE NIGHT...SW winds 10 to 15 kt, becoming W 15 to 20 kt after
midnight. Seas 2 to 3 ft.
.WED...W winds 10 to 15 kt. Seas 2 to 3 ft.
.WED NIGHT...SW winds 10 to 15 kt, becoming W after midnight.
Seas 2 to 3 ft.
.THU...N winds 10 kt, becoming NE in the afternoon. Seas 2 to
3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers after midnight.
.FRI...E winds 15 kt. Seas 4 to 5 ft. Showers likely with a
slight chance of tstms.
.FRI NIGHT...NE winds 15 kt. Seas 4 to 6 ft. Showers likely with
a slight chance of tstms.
.SAT...N winds 15 kt. Seas 5 to 7 ft. A slight chance of showers.
.SAT NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$

AMZ354-191215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
720 PM EDT Mon Mar 18 2024

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt, becoming NW
25 to 30 kt with gusts to 40 kt late this evening. Seas 2 to
3 ft, building to 4 to 5 ft after midnight.
.TUE...N winds 15 to 20 kt with gusts to 25 kt, becoming NW 5 to
10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in
the afternoon.
.TUE NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.WED...W winds 10 to 15 kt. Seas 2 ft.
.WED NIGHT...SW winds 10 kt, becoming W after midnight. Seas
2 ft.
.THU...N winds 5 to 10 kt, becoming NE 10 to 15 kt in the
afternoon. Seas 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers after midnight.
.FRI...SE winds 10 to 15 kt. Seas 4 to 5 ft. Showers likely with
a slight chance of tstms.
.FRI NIGHT...NE winds 15 kt. Seas 4 to 5 ft. A chance of showers
with a slight chance of tstms.
.SAT...N winds 15 kt. Seas 4 to 6 ft. A slight chance of showers.
.SAT NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-191215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
720 PM EDT Mon Mar 18 2024

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...W winds 10 to 15 kt with gusts to 20 kt, becoming NW
25 to 30 kt with gusts to 40 kt late this evening. Seas 3 to
4 ft, building to 5 to 7 ft after midnight.
.TUE...N winds 20 to 25 kt with gusts to 30 kt, becoming NW 10 to
15 kt in the afternoon. Seas 5 to 7 ft, subsiding to 3 to 4 ft in
the afternoon.
.TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.WED...W winds 10 to 15 kt. Seas 2 to 3 ft.
.WED NIGHT...SW winds 10 to 15 kt, becoming W after midnight.
Seas 2 to 3 ft.
.THU...N winds 10 kt, becoming NE in the afternoon. Seas 2 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft, building to 3 to
4 ft after midnight. A chance of showers after midnight.
.FRI...SE winds 15 kt. Seas 4 to 6 ft. Showers with a slight
chance of tstms.
.FRI NIGHT...NE winds 15 kt. Seas 6 to 8 ft. Showers likely with
a slight chance of tstms.
.SAT...N winds 15 to 20 kt. Seas 5 to 7 ft. A slight chance of
showers.
.SAT NIGHT...N winds 15 to 20 kt. Seas 6 to 8 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$


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