525
FZUS52 KCHS 252311
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
711 PM EDT Wed Sep 25 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

AMZ300-261215-
711 PM EDT Wed Sep 25 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Hurricane Helene is forecast to track northward across the Gulf
of Mexico tonight, then move inland across portions of Florida
and Georgia Thursday into Friday. Multiple impacts are expected
across our area Thursday and Thursday night. Drier weather then
arrives later Friday and persists into the weekend. Refer to the
latest
advisory on Helene issued by the National Hurricane Center.

$$

AMZ330-261215-
Charleston Harbor-
711 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT SHOULD REMAIN IN PORT...

.TONIGHT...SE winds 10 to 15 kt. A slight chance of showers.
.THU...SE winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
to 25 kt in the afternoon. Waves 1 to 2 ft. A chance of showers
in the morning. A chance of tstms. Showers in the afternoon.
.THU NIGHT...Tropical storm conditions possible. SE winds 25 to
30 kt. Gusts to 45 kt after midnight. Waves 2 to 4 ft. Showers
with a slight chance of tstms.
.FRI...Tropical storm conditions possible. S winds 20 to 25 kt.
Gusts to 40 kt, decreasing to 30 kt in the afternoon. Waves 2 to
3 ft. Showers likely in the morning. A slight chance of tstms. A
chance of showers in the afternoon.
.FRI NIGHT...SW winds 10 to 15 kt. A slight chance of showers
early in the evening.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon.
.SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt,
diminishing to 5 to 10 kt after midnight.
.SUN...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon.
.SUN NIGHT...W winds 5 to 10 kt.
.MON...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. A slight chance of showers and tstms in the afternoon.
.MON NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. A slight chance of showers and tstms early in the
evening.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 81 degrees.

$$

AMZ350-261215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
711 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT SHOULD REMAIN IN PORT...

.TONIGHT...SE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 6 seconds and E 2 ft at 10 seconds. A slight chance of showers.
.THU...Tropical storm conditions possible. SE winds 15 to 20 kt,
increasing to 20 to 25 kt in the afternoon. Seas 4 to 5 ft,
building to 5 to 7 ft in the afternoon. Wave Detail: SE 6 ft at
7 seconds and E 2 ft at 10 seconds. A chance of showers in the
morning. A chance of tstms. Showers in the afternoon.
.THU NIGHT...Tropical storm conditions expected. SE winds 25 to
35 kt, increasing to 30 to 40 kt after midnight. Seas 8 to 10 ft,
building to 10 to 14 ft after midnight. Wave Detail: SE 12 ft at
9 seconds and E 2 ft at 10 seconds. Showers with a slight chance
of tstms.
.FRI...Tropical storm conditions possible. S winds 25 to 30 kt,
diminishing to 20 to 25 kt in the afternoon. Seas 10 to 14 ft,
subsiding to 8 to 10 ft in the afternoon. Wave Detail: S 14 ft at
10 seconds. Showers likely in the morning. A slight chance of
tstms. A chance of showers in the afternoon.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 6 to 8 ft, subsiding to 4 to 6 ft after midnight.
Wave Detail: S 8 ft at 9 seconds and E 2 ft at 11 seconds. A
slight chance of showers early in the evening.
.SAT...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds and E
2 ft at 11 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers and tstms after midnight.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms early in the morning.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.MON...W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms until late afternoon.
.MON NIGHT...W winds 10 kt, becoming NW after midnight. Seas 2 to
3 ft. A slight chance of showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-261215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
711 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT SHOULD REMAIN IN PORT...

.TONIGHT...SE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. Wave Detail: SE 4 ft
at 6 seconds and E 2 ft at 10 seconds. A chance of showers.
.THU...Tropical storm conditions possible. SE winds 15 to 20 kt,
increasing to 20 to 25 kt in the afternoon. Seas 4 to 5 ft,
building to 5 to 7 ft in the afternoon. Wave Detail: SE 6 ft at
7 seconds and E 1 foot at 10 seconds. Showers likely in the
morning. A chance of tstms. Showers in the afternoon.
.THU NIGHT...Tropical storm conditions expected. SE winds 25 to
35 kt, becoming S 30 to 40 kt after midnight. Seas 8 to 10 ft,
building to 11 to 15 ft after midnight. Wave Detail: SE 14 ft at
9 seconds. Showers with a slight chance of tstms.
.FRI...Tropical storm conditions possible. S winds 25 to 30 kt,
diminishing to 20 to 25 kt in the afternoon. Seas 9 to 13 ft,
subsiding to 7 to 9 ft in the afternoon. Wave Detail: SE 13 ft at
10 seconds. A chance of showers with a slight chance of tstms
early in the morning, then a slight chance of showers in the late
morning and early afternoon.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 5 to 7 ft, subsiding to 4 to 6 ft after midnight.
Wave Detail: SE 7 ft at 9 seconds.
.SAT...SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: SE 4 ft at 7 seconds and E
1 foot at 11 seconds.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms after midnight.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms early in the morning.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.MON...W winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms until late afternoon.
.MON NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 ft. A slight chance of showers and tstms in the late
evening and overnight.

Winds and seas higher in and near tstms.

$$

AMZ354-261215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
711 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT SHOULD REMAIN IN PORT...

.TONIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to
5 ft after midnight. Wave Detail: SE 5 ft at 6 seconds and E 2 ft
at 10 seconds. A chance of showers and tstms after midnight.
.THU...Tropical storm conditions possible. SE winds 20 to 25 kt,
increasing to 25 to 30 kt in the afternoon. Seas 4 to 6 ft,
building to 6 to 8 ft in the afternoon. Wave Detail: SE 7 ft at
7 seconds and E 2 ft at 10 seconds. Showers with a chance of
tstms until late afternoon, then showers with a slight chance of
tstms late.
.THU NIGHT...Tropical storm conditions expected. SE winds 30 to
40 kt with gusts to 50 kt. Seas 9 to 11 ft, building to 10 to
14 ft after midnight. Wave Detail: SE 14 ft at 9 seconds. A
slight chance of tstms. Showers.
.FRI...Tropical storm conditions possible. S winds 25 to 30 kt,
diminishing to 20 to 25 kt in the afternoon. Seas 8 to 10 ft,
subsiding to 6 to 8 ft in the afternoon. Wave Detail: SE 10 ft at
9 seconds. A chance of showers with a slight chance of tstms
early in the morning, then a slight chance of showers in the late
morning and early afternoon.
.FRI NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: SE 5 ft at 8 seconds and E 5 ft at 10 seconds.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: SE 3 ft at 7 seconds and E
2 ft at 12 seconds.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms late.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.MON...W winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms early in the morning. A slight chance of showers and
tstms in the afternoon.
.MON NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 ft. A slight chance of showers and tstms early in the
evening. A slight chance of showers and tstms after midnight.

Winds and seas higher in and near tstms.

$$

AMZ374-261215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
711 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT SHOULD REMAIN IN PORT...

.TONIGHT...SE winds 15 to 20 kt. Seas 4 to 6 ft, building to 5 to
6 ft after midnight. Wave Detail: SE 6 ft at 6 seconds and E 3 ft
at 10 seconds. A chance of showers and tstms after midnight.
.THU...Tropical storm conditions possible. SE winds 20 to 25 kt,
increasing to 25 to 30 kt in the afternoon. Seas 5 to 7 ft,
building to 7 to 9 ft in the afternoon. Wave Detail: SE 8 ft at
7 seconds and E 2 ft at 10 seconds. Showers with a chance of
tstms until late afternoon, then showers with a slight chance of
tstms late.
.THU NIGHT...Tropical storm conditions expected. SE winds 25 to
35 kt, becoming S 30 to 40 kt after midnight. Seas 10 to 14 ft,
building to 14 to 17 ft after midnight. Wave Detail: SE 16 ft at
9 seconds. A slight chance of tstms. Showers.
.FRI...Tropical storm conditions possible. S winds 25 to 30 kt,
diminishing to 20 to 25 kt in the afternoon. Seas 11 to 15 ft,
subsiding to 8 to 10 ft in the afternoon. Wave Detail: S 15 ft at
9 seconds. A chance of showers early in the morning. A slight
chance of tstms until late afternoon. A slight chance of showers
in the late morning and afternoon.
.FRI NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 6 to
8 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: S 7 ft
at 8 seconds and E 3 ft at 12 seconds. A slight chance of
showers.
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds and E
3 ft at 12 seconds. A slight chance of showers early in the
morning.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers and tstms.
.SUN...W winds 5 to 10 kt. Seas 3 ft. A slight chance of showers
and tstms until late afternoon.
.SUN NIGHT...W winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.MON...W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.

Winds and seas higher in and near tstms.

$$