287
FZUS52 KCHS 091645
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1245 PM EDT Thu May 9 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

AMZ300-100515-
1245 PM EDT Thu May 9 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will approach the area tonight, then move offshore
Friday. High pressure will prevail for the weekend into early
next week. A storm system could affect the area by the middle of
next week.

$$

AMZ330-100515-
Charleston Harbor-
1245 PM EDT Thu May 9 2024

...TORNADO WATCH 218 IN EFFECT UNTIL 7 PM EDT THIS EVENING...

.THIS AFTERNOON...SW winds 15 kt. Showers and tstms. Some tstms
may be severe with damaging winds, large hail, and waterspouts.
.TONIGHT...SW winds 10 to 15 kt. A slight chance of showers and
tstms in the evening. Some tstms may produce damaging winds,
large hail, and waterspouts in the evening.
.FRI...SW winds 10 to 15 kt. A chance of showers and tstms.
.FRI NIGHT...W winds 10 to 15 kt, becoming N after midnight. A
chance of showers and tstms in the evening.
.SAT...N winds 5 to 10 kt.
.SAT NIGHT...W winds 5 to 10 kt.
.SUN...NW winds 5 to 10 kt.
.SUN NIGHT...S winds 5 to 10 kt.
.MON...S winds 5 to 10 kt.
.MON NIGHT...SE winds 10 kt. A chance of showers with a slight
chance of tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 77 degrees.

$$

AMZ350-100515-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1245 PM EDT Thu May 9 2024

...TORNADO WATCH 218 IN EFFECT UNTIL 7 PM EDT THIS EVENING...

.THIS AFTERNOON...SW winds 15 to 20 kt with gusts to 25 kt. Seas
4 to 5 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at
11 seconds. Showers and tstms. Some tstms may be severe with
damaging winds, large hail, and waterspouts.
.TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight.
Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 11 seconds. A
slight chance of showers and tstms in the evening. Some tstms may
produce damaging winds, large hail, and waterspouts in the
evening.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and E 1 foot at 11 seconds. A chance of showers and
tstms.
.FRI NIGHT...W winds 15 to 20 kt, becoming N after midnight. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds. A chance of showers
and tstms.
.SAT...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. Wave Detail: W 4 ft at 6 seconds and NE 2 ft at
8 seconds, becoming NE 2 ft at 5 seconds and SW 2 ft at
6 seconds.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft
at 6 seconds and W 2 ft at 6 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...S winds 10 to 15 kt. Seas 2 ft.
.MON NIGHT...S winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-100515-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1245 PM EDT Thu May 9 2024

...TORNADO WATCH 218 IN EFFECT UNTIL 7 PM EDT THIS EVENING...

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts to 20 kt. Seas
3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 1 foot at
11 seconds. A slight chance of showers and tstms early, then
showers and tstms late. Some tstms may be severe with damaging
winds, large hail, and waterspouts.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 6 seconds and E 1 foot at 11 seconds. A chance of showers
and tstms in the evening. Some tstms may produce damaging winds,
large hail, and waterspouts in the evening.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E
1 foot at 11 seconds. A chance of showers and tstms.
.FRI NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave
Detail: SW 3 ft at 6 seconds, becoming NW 4 ft at 6 seconds and E
1 foot at 7 seconds. A chance of showers and tstms, mainly in the
evening.
.SAT...N winds 10 to 15 kt with gusts to 20 kt, becoming NW 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
5 seconds and NE 2 ft at 9 seconds.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: W 1 foot
at 5 seconds and NE 1 foot at 6 seconds.
.SUN...W winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.MON...S winds 10 kt. Seas 2 ft.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-100515-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1245 PM EDT Thu May 9 2024

...TORNADO WATCH 218 IN EFFECT UNTIL 7 PM EDT THIS EVENING...

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 6 seconds and E 1 foot at 11 seconds. A chance
of showers and tstms early, then showers and tstms late. Some
tstms may be severe with damaging winds, large hail, and
waterspouts.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: S 3 ft at 5 seconds and E
1 foot at 11 seconds, becoming S 3 ft at 6 seconds and E 1 foot
at 11 seconds. A chance of showers and tstms in the evening. Some
tstms may produce damaging winds, large hail, and waterspouts in
the evening.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E
1 foot at 11 seconds. A chance of tstms. A chance of showers in
the morning, then showers likely in the afternoon.
.FRI NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at
11 seconds. A chance of showers and tstms, mainly in the evening.
.SAT...N winds 10 to 15 kt with gusts to 20 kt, becoming NE 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at
5 seconds and E 2 ft at 10 seconds.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot
at 6 seconds and NE 1 foot at 6 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...SE winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-100515-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1245 PM EDT Thu May 9 2024

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: S 3 ft at 6 seconds and E 2 ft at 11 seconds. A slight
chance of showers and tstms early, then showers and tstms late.
Some tstms may be severe with damaging winds, large hail, and
waterspouts.
.TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E
2 ft at 11 seconds. Showers and tstms likely, mainly in the
evening. Some tstms may produce damaging winds, large hail, and
waterspouts in the evening.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and
E 1 foot at 11 seconds. A chance of tstms. A chance of showers in
the morning, then showers likely in the afternoon.
.FRI NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave
Detail: SW 4 ft at 5 seconds and E 1 foot at 11 seconds, becoming
W 4 ft at 5 seconds and E 1 foot at 10 seconds. A chance of
showers and tstms.
.SAT...N winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: NW 3 ft at 4 seconds and E
2 ft at 10 seconds, becoming N 3 ft at 6 seconds and NE 2 ft at
10 seconds.
.SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: N 2 ft at 6 seconds and S 1 foot at
6 seconds.
.SUN...NW winds 5 to 10 kt. Seas 2 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...SE winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.
.MON NIGHT...SE winds 15 to 20 kt. Seas 4 to 5 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$