Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 180716
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
316 AM EDT Sat May 18 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

AMZ300-182030-
316 AM EDT Sat May 18 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A storm system will bring impacts to our area this weekend. High
pressure returns to our region next week.

$$

AMZ330-182030-
Charleston Harbor-
316 AM EDT Sat May 18 2024

.TODAY...S winds 10 to 15 kt. Showers likely with a chance of
tstms this afternoon, mainly late morning and this afternoon.
.TONIGHT...SW winds 5 to 10 kt. A chance of showers and tstms.
.SUN...NW winds 5 to 10 kt. Showers likely with a chance of
tstms.
.SUN NIGHT...NE winds 10 kt. A chance of showers and tstms,
mainly in the evening.
.MON...NE winds 10 to 15 kt. A slight chance of showers and tstms
in the morning.
.MON NIGHT...NE winds 10 kt.
.TUE...NE winds 10 kt.
.TUE NIGHT...E winds 5 to 10 kt.
.WED...E winds 5 to 10 kt.
.WED NIGHT...S winds 5 to 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 77 degrees.

$$

AMZ350-182030-
Waters from South Santee River to Edisto Beach SC out 20 NM-
316 AM EDT Sat May 18 2024

.TODAY...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers
with a slight chance of tstms this morning, then showers likely
with a chance of tstms this afternoon.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 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.
.SUN NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after
midnight. Wave Detail: S 2 ft at 5 seconds and E 2 ft at
8 seconds, becoming NE 3 ft at 6 seconds and S 2 ft at 5 seconds.
Showers likely with a chance of tstms in the evening, then a
chance of showers with a slight chance of tstms after midnight.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 5 seconds and S 1 foot at 5 seconds. A slight chance of tstms.
A slight chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 8 seconds.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-182030-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
316 AM EDT Sat May 18 2024

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

Winds and seas higher in and near tstms.

$$

AMZ354-182030-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
316 AM EDT Sat May 18 2024

.TODAY...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and E 1 foot at 9 seconds. Showers with a chance of
tstms this afternoon, mainly late morning and through the
afternoon.
.TONIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and E 1 foot at 9 seconds. Showers likely with a chance
of tstms.
.SUN...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: SW 2 ft at
5 seconds and E 1 foot at 8 seconds. A chance of tstms. A chance
of showers in the morning, then showers likely in the afternoon.
.SUN NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds and NE 2 ft at 8 seconds. A chance of showers.
A chance of tstms, mainly in the evening.
.MON...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NE 3 ft at 5 seconds and S 1 foot at
5 seconds, becoming NE 3 ft at 5 seconds. A slight chance of
showers and tstms.
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
NE 3 ft at 6 seconds.
.TUE...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-182030-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
316 AM EDT Sat May 18 2024

.TODAY...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 9 seconds. Showers with a
chance of tstms this afternoon, mainly late morning and through
the afternoon.
.TONIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and E 2 ft at 9 seconds. Showers likely with a
chance of tstms.
.SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 3 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.
.SUN NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after
midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight.
Wave Detail: SW 2 ft at 5 seconds and E 2 ft at 8 seconds,
becoming NE 3 ft at 8 seconds and NW 2 ft at 3 seconds. Showers
likely with a chance of tstms in the evening, then a chance of
showers with a slight chance of tstms after midnight.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 5 seconds and S 1 foot at 5 seconds. A slight chance of tstms.
A chance of showers, mainly in the morning.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
NE 4 ft at 7 seconds. A slight chance of showers and tstms.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$