355
FZUS52 KCHS 092005
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
405 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

AMZ300-100915-
405 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.

$$

AMZ330-100915-
Charleston Harbor-
405 PM EDT Thu May 9 2024

.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. A slight
chance of showers and tstms this evening.
.FRI...SW winds 10 to 15 kt. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.FRI NIGHT...W winds 10 to 15 kt, becoming N after midnight. A
chance of showers and tstms in the evening.
.SAT...N winds 10 to 15 kt with gusts to 20 kt, becoming NW in
the afternoon.
.SAT NIGHT...W winds 5 to 10 kt.
.SUN...NW winds 5 to 10 kt, becoming W in the afternoon.
.SUN NIGHT...S winds 5 to 10 kt.
.MON...SE winds 10 to 15 kt. A slight chance of showers and
tstms.
.MON NIGHT...SE winds 10 to 15 kt. Showers and tstms likely.
.TUE...S winds 10 to 15 kt. Showers and tstms.
.TUE NIGHT...SW winds 15 kt. Showers and tstms likely.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 77 degrees.

$$

AMZ350-100915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
405 PM EDT Thu May 9 2024

.TONIGHT...SW winds 15 to 20 kt. 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 this
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 in the morning, then showers and tstms likely in the
afternoon.
.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, 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 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
9 seconds, becoming W 2 ft at 5 seconds and NE 2 ft at 6 seconds.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W
2 ft at 5 seconds and NE 2 ft at 6 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at
7 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...SE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers and
tstms likely.
.TUE...S winds 15 kt. Seas 4 to 5 ft. Showers and tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers and
tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-100915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
405 PM EDT Thu May 9 2024

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

.TONIGHT...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 chance of showers and tstms early this evening,
then a slight chance of showers and tstms late this evening. Some
tstms may produce damaging winds, large hail, and waterspouts
early this 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 in the
morning, then showers and tstms in the afternoon.
.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, 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 4 seconds and NE 1 foot at 6 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 ft. Wave Detail: NW 1 foot at 3 seconds and NE 1 foot at
7 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. Showers and
tstms likely.
.TUE...S winds 15 kt. Seas 4 to 5 ft. Showers and tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ354-100915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
405 PM EDT Thu May 9 2024

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

.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. Showers and tstms likely early this evening, then
a slight chance of showers and tstms late this evening. Some
tstms may produce damaging winds, large hail, and waterspouts
early this evening.
.FRI...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. Wave Detail: S 3 ft at 6 seconds and E 1 foot at
11 seconds, becoming SW 3 ft at 6 seconds and E 1 foot at
11 seconds. Showers and tstms.
.FRI NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave
Detail: SW 4 ft at 5 seconds and E 1 foot at 11 seconds, becoming
NW 3 ft at 5 seconds and E 1 foot at 10 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 2 ft at
4 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, becoming S in the afternoon. Seas
2 ft. Wave Detail: NW 1 foot at 2 seconds and NE 1 foot at
6 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight.
.MON...SE winds 10 to 15 kt. Seas 2 ft. A chance of showers and
tstms.
.MON NIGHT...SE winds 15 to 20 kt. Seas 3 to 4 ft. Showers and
tstms likely.
.TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. Showers and tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. Showers and
tstms likely.

Winds and seas higher in and near tstms.

$$

AMZ374-100915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
405 PM EDT Thu May 9 2024

.TONIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt late.
Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds and E 2 ft at
11 seconds. Showers and tstms likely early this evening, then a
chance of showers and tstms late this evening. A slight chance of
showers and tstms after midnight.
.FRI...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: SW 4 ft at 6 seconds and E 1 foot at 11 seconds.
Showers and tstms.
.FRI NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. Wave
Detail: SW 5 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, mainly in the evening.
.SAT...N winds 15 kt with gusts to 20 kt, diminishing to 5 to
10 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in
the afternoon. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at
9 seconds, becoming N 2 ft at 6 seconds and E 2 ft at 10 seconds.
.SAT NIGHT...W winds 5 to 10 kt. 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. Wave Detail: NW 2 ft at
3 seconds and NE 2 ft at 7 seconds.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.MON...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.MON NIGHT...SE winds 15 to 20 kt. Seas 4 to 5 ft. Showers and
tstms likely.
.TUE...S winds 15 to 20 kt. Seas 5 to 6 ft. Showers and tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers and
tstms.

Winds and seas higher in and near tstms.

$$