219
FZUS52 KCHS 010550
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
150 AM 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

AMZ300-011815-
150 AM 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 by Wednesday and
could then linger in the vicinity into the weekend.

$$

AMZ330-011815-
Charleston Harbor-
150 AM EDT Tue Jul 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING
THROUGH THIS EVENING...

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

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 85 degrees.

$$

AMZ350-011815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
150 AM EDT Tue Jul 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 4
ft, building to 4 to 5 ft this afternoon. Wave Detail: S 4 ft at
6 seconds and E 2 ft at 9 seconds, becoming SE 4 ft at 7 seconds.
A chance of showers and tstms early this morning, then a slight
chance of showers and tstms late this morning.
.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 8 seconds.
A slight chance of showers and tstms in the evening, then a
chance of showers and tstms after midnight.
.WED...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 7 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. Seas 3 to 4 ft. Wave Detail: S
4 ft at 6 seconds and SE 1 foot at 9 seconds. Showers likely.
Tstms likely, mainly in the evening.
.THU...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: S 3 ft at
7 seconds. A chance of showers and tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. A chance of showers and tstms, mainly in the
evening.
.FRI...NE winds 5 to 10 kt. Seas 2 to 3 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...E 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.

$$

AMZ352-011815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
150 AM EDT Tue Jul 1 2025

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

Winds and seas higher in and near tstms.

$$

AMZ354-011815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
150 AM EDT Tue Jul 1 2025

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

Winds and seas higher in and near tstms.

$$

AMZ374-011815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
150 AM EDT Tue Jul 1 2025

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

$$