FZUS52 KCHS 190548
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
1248 AM EST Fri Dec 19 2025
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
AMZ300-191800-
1248 AM EST Fri Dec 19 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will shift across the area early today, resulting in
an influx of drier air and breezy winds. High pressure will then
prevail over the weekend, with another cold front forecast to
impact the area Monday.
$$
AMZ330-191800-
Charleston Harbor-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
.REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 25 kt. A
chance of rain and tstms, then a slight chance of rain and tstms
late. Areas of fog, then patchy fog late. Vsby 1 NM or less,
increasing to 1 to 3 NM late.
.FRI...W winds 10 to 15 kt with gusts to 20 kt.
.FRI NIGHT...NW winds 5 to 10 kt.
.SAT...NE winds 5 to 10 kt.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight.
.SUN...NW winds 5 kt.
.SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight.
.MON...NE winds 10 to 15 kt.
.MON NIGHT...NE winds 10 to 15 kt.
.TUE...E winds 5 kt.
.TUE NIGHT...W winds 5 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 54 degrees.
$$
AMZ350-191800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.REST OF TONIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Seas
7 to 9 ft. Wave Detail: SE 9 ft at 9 seconds. A chance of rain
and tstms. Areas of fog. Patchy fog late. Vsby 1 NM or less.
.FRI...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 7 to 9 ft, subsiding to 6 to 8 ft in the
afternoon. Wave Detail: SE 9 ft at 9 seconds, becoming SE 7 ft at
9 seconds and SW 4 ft at 6 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and
SW 3 ft at 7 seconds, becoming SE 4 ft at 9 seconds and SW 2 ft
at 5 seconds.
.SAT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 9 seconds and SW 1 foot at 5 seconds.
.SAT NIGHT...E winds 5 kt, becoming W after midnight. Seas 3 ft.
Wave Detail: SE 3 ft at 9 seconds and NE 1 foot at 4 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
9 seconds.
.SUN NIGHT...N winds 15 to 20 kt, becoming NE 20 to 25 kt after
midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight.
.MON...NE winds 20 to 25 kt. Seas 5 to 7 ft.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-191800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas
6 to 8 ft. Wave Detail: SE 7 ft at 8 seconds. Rain likely with a
chance of tstms. Areas of dense fog with vsby 1 NM or less.
.FRI...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 6 to 8 ft, subsiding to 5 to 7 ft in the
afternoon. Wave Detail: SE 7 ft at 9 seconds, becoming SE 6 ft at
9 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and W
2 ft at 4 seconds, becoming SE 4 ft at 9 seconds and W 2 ft at
3 seconds.
.SAT...NE winds 10 kt, diminishing to 5 kt in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight. Seas 3 ft.
Wave Detail: SE 3 ft at 9 seconds and NE 1 foot at 3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts to 25 kt after midnight. Seas 2 to 3 ft, building to 4 to
5 ft after midnight.
.MON...NE winds 20 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...NE winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SW winds 5 kt. Seas 3 to 4 ft.
Winds and seas higher in and near tstms.
$$
AMZ354-191800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas
4 to 6 ft. Wave Detail: SE 6 ft at 8 seconds. A chance of rain
and tstms. Areas of dense fog with vsby 1 NM or less.
.FRI...W winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: SE 6 ft at
9 seconds, becoming SE 5 ft at 9 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 4 ft at 9 seconds and NW 2 ft at 3 seconds.
.SAT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and NE 1 foot at
3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft, building to 4 to 5 ft after
midnight.
.MON...NE winds 20 to 25 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 20 to 25 kt. Seas 4 to 6 ft.
.TUE...NE winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SW winds 5 kt. Seas 4 to 5 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-191800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.REST OF TONIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Seas
7 to 9 ft. Wave Detail: SE 8 ft at 8 seconds. Patchy fog. A
chance of rain and tstms, then a slight chance of rain and tstms
late. Vsby 1 NM or less.
.FRI...W winds 15 to 20 kt with gusts to 30 kt. Seas 7 to 9 ft,
subsiding to 5 to 7 ft in the afternoon. Wave Detail: SE 8 ft at
9 seconds and SW 4 ft at 5 seconds, becoming SE 5 ft at 9 seconds
and W 4 ft at 5 seconds.
.FRI NIGHT...NW winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: SE 4 ft at 9 seconds and NW 3 ft at 4 seconds.
.SAT...NE winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: SE 4 ft at 9 seconds and N
2 ft at 4 seconds, becoming E 4 ft at 9 seconds.
.SAT NIGHT...E winds 5 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 1 foot at
3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 20 to 25 kt
after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after
midnight.
.MON...NE winds 20 to 25 kt. Seas 6 to 8 ft. A slight chance of
rain.
.MON NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. A slight chance
of rain.
.TUE...E winds 5 to 10 kt. Seas 5 to 7 ft. A slight chance of
rain.
.TUE NIGHT...SW winds 5 kt. Seas 4 to 6 ft.
Winds and seas higher in and near tstms.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
1248 AM EST Fri Dec 19 2025
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
AMZ300-191800-
1248 AM EST Fri Dec 19 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will shift across the area early today, resulting in
an influx of drier air and breezy winds. High pressure will then
prevail over the weekend, with another cold front forecast to
impact the area Monday.
$$
AMZ330-191800-
Charleston Harbor-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
.REST OF TONIGHT...SW winds 10 to 15 kt with gusts to 25 kt. A
chance of rain and tstms, then a slight chance of rain and tstms
late. Areas of fog, then patchy fog late. Vsby 1 NM or less,
increasing to 1 to 3 NM late.
.FRI...W winds 10 to 15 kt with gusts to 20 kt.
.FRI NIGHT...NW winds 5 to 10 kt.
.SAT...NE winds 5 to 10 kt.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight.
.SUN...NW winds 5 kt.
.SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight.
.MON...NE winds 10 to 15 kt.
.MON NIGHT...NE winds 10 to 15 kt.
.TUE...E winds 5 kt.
.TUE NIGHT...W winds 5 kt.
Winds and waves higher in and near tstms.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 54 degrees.
$$
AMZ350-191800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.REST OF TONIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Seas
7 to 9 ft. Wave Detail: SE 9 ft at 9 seconds. A chance of rain
and tstms. Areas of fog. Patchy fog late. Vsby 1 NM or less.
.FRI...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 7 to 9 ft, subsiding to 6 to 8 ft in the
afternoon. Wave Detail: SE 9 ft at 9 seconds, becoming SE 7 ft at
9 seconds and SW 4 ft at 6 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and
SW 3 ft at 7 seconds, becoming SE 4 ft at 9 seconds and SW 2 ft
at 5 seconds.
.SAT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 9 seconds and SW 1 foot at 5 seconds.
.SAT NIGHT...E winds 5 kt, becoming W after midnight. Seas 3 ft.
Wave Detail: SE 3 ft at 9 seconds and NE 1 foot at 4 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
9 seconds.
.SUN NIGHT...N winds 15 to 20 kt, becoming NE 20 to 25 kt after
midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight.
.MON...NE winds 20 to 25 kt. Seas 5 to 7 ft.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft.
Winds and seas higher in and near tstms.
$$
AMZ352-191800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas
6 to 8 ft. Wave Detail: SE 7 ft at 8 seconds. Rain likely with a
chance of tstms. Areas of dense fog with vsby 1 NM or less.
.FRI...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 6 to 8 ft, subsiding to 5 to 7 ft in the
afternoon. Wave Detail: SE 7 ft at 9 seconds, becoming SE 6 ft at
9 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 4 ft at 9 seconds and W
2 ft at 4 seconds, becoming SE 4 ft at 9 seconds and W 2 ft at
3 seconds.
.SAT...NE winds 10 kt, diminishing to 5 kt in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight. Seas 3 ft.
Wave Detail: SE 3 ft at 9 seconds and NE 1 foot at 3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts to 25 kt after midnight. Seas 2 to 3 ft, building to 4 to
5 ft after midnight.
.MON...NE winds 20 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...NE winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SW winds 5 kt. Seas 3 to 4 ft.
Winds and seas higher in and near tstms.
$$
AMZ354-191800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas
4 to 6 ft. Wave Detail: SE 6 ft at 8 seconds. A chance of rain
and tstms. Areas of dense fog with vsby 1 NM or less.
.FRI...W winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: SE 6 ft at
9 seconds, becoming SE 5 ft at 9 seconds.
.FRI NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
SE 4 ft at 9 seconds and NW 2 ft at 3 seconds.
.SAT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 9 seconds.
.SAT NIGHT...NE winds 5 kt, becoming W after midnight. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and NE 1 foot at
3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft, building to 4 to 5 ft after
midnight.
.MON...NE winds 20 to 25 kt. Seas 4 to 6 ft.
.MON NIGHT...NE winds 20 to 25 kt. Seas 4 to 6 ft.
.TUE...NE winds 5 to 10 kt. Seas 4 to 5 ft.
.TUE NIGHT...SW winds 5 kt. Seas 4 to 5 ft.
Winds and seas higher in and near tstms.
$$
AMZ374-191800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1248 AM EST Fri Dec 19 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...
.REST OF TONIGHT...SW winds 20 to 25 kt with gusts to 30 kt. Seas
7 to 9 ft. Wave Detail: SE 8 ft at 8 seconds. Patchy fog. A
chance of rain and tstms, then a slight chance of rain and tstms
late. Vsby 1 NM or less.
.FRI...W winds 15 to 20 kt with gusts to 30 kt. Seas 7 to 9 ft,
subsiding to 5 to 7 ft in the afternoon. Wave Detail: SE 8 ft at
9 seconds and SW 4 ft at 5 seconds, becoming SE 5 ft at 9 seconds
and W 4 ft at 5 seconds.
.FRI NIGHT...NW winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: SE 4 ft at 9 seconds and NW 3 ft at 4 seconds.
.SAT...NE winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: SE 4 ft at 9 seconds and N
2 ft at 4 seconds, becoming E 4 ft at 9 seconds.
.SAT NIGHT...E winds 5 kt, becoming W after midnight. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 1 foot at
3 seconds.
.SUN...NW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
9 seconds.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 20 to 25 kt
after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after
midnight.
.MON...NE winds 20 to 25 kt. Seas 6 to 8 ft. A slight chance of
rain.
.MON NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft. A slight chance
of rain.
.TUE...E winds 5 to 10 kt. Seas 5 to 7 ft. A slight chance of
rain.
.TUE NIGHT...SW winds 5 kt. Seas 4 to 6 ft.
Winds and seas higher in and near tstms.
$$