506
FZUS52 KCHS 240302
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1102 PM EDT Fri May 23 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

AMZ300-241530-
1102 PM EDT Fri May 23 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A weak front to the south slides closer to the area and stalls
through the holiday weekend. This front eventually lifts north
early next week as a cold front brings increasingly unsettled
weather later Monday through Tuesday. Mainly seasonable
conditions return by later next week with weak troughing
stretching across the Southeast.

$$

AMZ330-241530-
Charleston Harbor-
1102 PM EDT Fri May 23 2025

.REST OF TONIGHT...W winds 5 to 10 kt, becoming NW late.
.SAT...NE winds 5 to 10 kt, becoming E in the afternoon.
.SAT NIGHT...SE winds 5 to 10 kt. A slight chance of showers
after midnight.
.SUN...E winds 5 to 10 kt, becoming SE in the afternoon. A chance
of showers. A slight chance of tstms in the morning, then a
chance of tstms in the afternoon.
.SUN NIGHT...S winds 10 kt. Showers likely with a chance of
tstms.
.MON...NW winds 10 kt, becoming NE in the afternoon. Showers
likely with a slight chance of tstms in the morning, then a
chance of showers and tstms in the afternoon.
.MON NIGHT...E winds 10 to 15 kt. A chance of showers with a
slight chance of tstms.
.TUE...E winds 10 to 15 kt. Showers likely with a chance of
tstms.
.TUE NIGHT...S winds 10 kt. Showers likely with a chance of
tstms.
.WED...S winds 10 kt. Showers likely with a chance of tstms.
.WED NIGHT...S winds 5 to 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 78 degrees.

$$

AMZ350-241530-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1102 PM EDT Fri May 23 2025

.REST OF TONIGHT...SW winds 5 to 10 kt, becoming NW late. Seas 2
ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.SAT...NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at
4 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft
at 4 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and NE
1 foot at 4 seconds. A chance of showers. A slight chance of
tstms in the morning, then a chance of tstms in the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.MON...W winds 10 to 15 kt, becoming NE with gusts to 20 kt in
the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds
and NE 2 ft at 3 seconds. Showers likely with a chance of tstms
in the morning, then a chance of showers with a slight chance of
tstms in the afternoon.
.MON NIGHT...E winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. A
chance of showers with a slight chance of tstms.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
.WED...S winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-241530-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1102 PM EDT Fri May 23 2025

.REST OF TONIGHT...SW winds 5 to 10 kt, becoming NW late. Seas
2 ft. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at
9 seconds.
.SAT...NE winds 10 kt, becoming E in the afternoon. Seas 2 ft.
Wave Detail: NE 1 foot at 3 seconds and S 1 foot at 4 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE
1 foot at 4 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms after midnight.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
4 seconds and NE 1 foot at 4 seconds. A chance of showers. A
slight chance of tstms in the morning, then a chance of tstms in
the afternoon.
.SUN NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and NE 1 foot at 5 seconds. A chance of showers. A
chance of tstms, mainly in the evening.
.MON...W winds 10 to 15 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and NE 1 foot at
4 seconds. A chance of showers. A slight chance of tstms in the
morning, then a chance of tstms in the afternoon.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.TUE...SE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with
a chance of tstms.
.TUE NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED...S winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-241530-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1102 PM EDT Fri May 23 2025

.REST OF TONIGHT...S winds 5 to 10 kt, becoming W late. Seas 2
ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at 9 seconds.
.SAT...N winds 10 kt, becoming E in the afternoon. Seas 2 ft.
Wave Detail: S 2 ft at 4 seconds and NE 1 foot at 2 seconds.
.SAT NIGHT...SE winds 10 kt. Seas 2 ft. Wave Detail: E 1 foot at
4 seconds and E 1 foot at 9 seconds.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and NE 1 foot at 4 seconds. A chance of showers. A
chance of tstms in the afternoon.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and NE 1 foot at 5 seconds. A chance of
showers. A chance of tstms, mainly in the evening.
.MON...W winds 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 5 seconds and NE 1 foot at
5 seconds. A chance of showers. A slight chance of tstms in the
afternoon.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.TUE...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.WED...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and
tstms.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-241530-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1102 PM EDT Fri May 23 2025

.REST OF TONIGHT...S winds 5 to 10 kt, becoming SW late. Seas 2
ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at 9 seconds.
.SAT...N winds 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds.
.SAT NIGHT...E winds 10 kt, becoming S after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 9 seconds and NE 1 foot at
3 seconds. A slight chance of showers and tstms after midnight.
.SUN...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
4 seconds and E 2 ft at 8 seconds. A slight chance of showers and
tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds. A chance of showers. A
chance of tstms, mainly in the evening.
.MON...SW winds 10 to 15 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at
9 seconds. A chance of showers with a slight chance of tstms.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. A chance of tstms. A chance of showers
in the evening, then showers likely after midnight.
.TUE...SE winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely
with a chance of tstms.
.WED...S winds 10 kt. Seas 3 to 4 ft. A chance of showers and
tstms.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.

Winds and seas higher in and near tstms.

$$