293
FZUS52 KCHS 020012
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
812 PM EDT Tue Jul 1 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

AMZ300-021315-
812 PM EDT Tue Jul 1 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front is expected to move into the area Wednesday and
Wednesday night and could then linger along or just off the coast
through the weekend.

$$

AMZ330-021315-
Charleston Harbor-
812 PM EDT Tue Jul 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.TONIGHT...S winds 15 to 20 kt with gusts to 25 kt, becoming SW
10 to 15 kt with gusts to 20 kt late this evening. Waves 1 to
2 ft. A slight chance of showers and tstms late this evening.
.WED...SW winds 10 to 15 kt. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt,
diminishing to 5 to 10 kt after midnight. Showers likely. Tstms
likely, mainly in the evening.
.THU...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 5 kt, becoming W after midnight. A chance
of showers and tstms, mainly in the evening.
.FRI...NE winds 5 to 10 kt. A slight chance of showers and tstms.
.FRI NIGHT...E winds 5 to 10 kt.
.SAT...E winds 10 to 15 kt. A slight chance of showers and tstms.
.SAT NIGHT...E winds 5 to 10 kt. A slight chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 86 degrees.

$$

AMZ350-021315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
812 PM EDT Tue Jul 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.TONIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 9 seconds.
A chance of showers and tstms late this evening.
.WED...SW winds 15 to 20 kt. Seas 4 ft. Wave Detail: SE 4 ft at
7 seconds. A chance of showers and tstms.
.WED NIGHT...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 7 seconds.
Showers. Tstms likely, mainly in the evening.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds. Showers likely with a chance of tstms.
.THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of
showers. A chance of tstms, mainly in the evening.
.FRI...NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.FRI NIGHT...E winds 10 kt. Seas 2 to 3 ft.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers and tstms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance
of showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-021315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
812 PM EDT Tue Jul 1 2025

.TONIGHT...S winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail:
S 4 ft at 5 seconds and SE 2 ft at 9 seconds. A slight chance of
showers and tstms early this evening, then a chance of showers and
tstms late this evening. A slight chance of showers and tstms
late.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
chance of showers and tstms.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 5 seconds and E 1 foot at 8 seconds. Showers. Tstms likely,
mainly in the evening.
.THU...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of tstms.
Showers likely, mainly in the morning.
.THU NIGHT...SW winds 5 kt, becoming W after midnight. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of showers. A
chance of tstms, mainly in the evening.
.FRI...NE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.FRI NIGHT...E winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. A chance of showers
with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-021315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
812 PM EDT Tue Jul 1 2025

.TONIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 5 seconds. A chance of showers and tstms early this
evening, then a slight chance of showers and tstms late this
evening.
.WED...S winds 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 5 seconds
and E 2 ft at 8 seconds. A chance of showers with a slight chance
of tstms in the morning, then showers and tstms likely in the
afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 5 seconds and E 2 ft at 8 seconds. Showers with tstms likely
in the evening, then showers likely with a chance of tstms after
midnight.
.THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers with
a slight chance of tstms in the morning, then showers likely with
a chance of tstms in the afternoon.
.THU NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds. Showers likely with
a chance of tstms in the evening, then a chance of showers after
midnight.
.FRI...NE winds 5 to 10 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.FRI NIGHT...E winds 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. A chance of showers
with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-021315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
812 PM EDT Tue Jul 1 2025

.TONIGHT...S winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail:
S 4 ft at 6 seconds. A slight chance of showers and tstms early
this evening, then a chance of showers and tstms late this
evening.
.WED...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds. A chance of
tstms. A chance of showers in the morning, then showers likely in
the afternoon.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: S 4 ft at 7 seconds and SE 2 ft at 8 seconds.
Showers. Tstms likely, mainly in the evening.
.THU...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds. Showers likely with a chance of tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. A chance of showers. A chance of tstms, mainly
in the evening.
.FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...E winds 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$