546
FZUS52 KCHS 191048
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
648 AM EDT Sun May 19 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

AMZ300-192315-
648 AM EDT Sun May 19 2024

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will cross through our area later today. High
pressure then prevails for most of this week, followed by another
storm system potentially impacting our area late this week.

$$

AMZ330-192315-
Charleston Harbor-
648 AM EDT Sun May 19 2024

.TODAY...NW winds 5 to 10 kt, becoming NE this afternoon. A
slight chance of showers this morning, then showers and tstms
this afternoon.
.TONIGHT...NE winds 5 to 10 kt. A chance of showers and tstms in
the evening.
.MON...NE winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NE winds 10 kt.
.TUE...NE winds 10 kt, increasing to 15 kt with gusts to 20 kt in
the afternoon.
.TUE NIGHT...E winds 5 to 10 kt.
.WED...E winds 5 to 10 kt.
.WED NIGHT...S winds 5 to 10 kt.
.THU...SW winds 5 to 10 kt.
.THU 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 76 degrees.

$$

AMZ350-192315-
Waters from South Santee River to Edisto Beach SC out 20 NM-
648 AM EDT Sun May 19 2024

.TODAY...W winds 10 kt, becoming NE this afternoon. Seas 2 ft.
Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. A
slight chance of showers this morning, then showers and tstms
likely this afternoon.
.TONIGHT...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: NE 3 ft at 8 seconds and S 2 ft at 5 seconds,
becoming NE 4 ft at 5 seconds and S 1 foot at 5 seconds. A chance
of showers and tstms in the evening, then a slight chance of
showers after midnight. Some tstms may produce heavy rainfall in
the evening.
.MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft
at 6 seconds and S 1 foot at 5 seconds.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 7 seconds and S 1 foot at 6 seconds.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.THU...SW winds 5 to 10 kt. Seas 2 ft.
.THU NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-192315-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
648 AM EDT Sun May 19 2024

.TODAY...W winds 5 to 10 kt, becoming NW early this afternoon,
then becoming NE late. Seas 2 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds. Showers and tstms this
afternoon.
.TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and S
2 ft at 5 seconds. Showers and tstms, mainly in the evening. Some
tstms may produce heavy rainfall in the evening.
.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.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds.
.TUE...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 7 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds.
.WED...E winds 5 to 10 kt. Seas 2 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.THU...SW winds 5 to 10 kt. Seas 2 ft.
.THU NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-192315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
648 AM EDT Sun May 19 2024

.TODAY...W winds 10 to 15 kt, diminishing to 5 to 10 kt late this
morning and early afternoon, then becoming E late. Seas 2 ft.
Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds.
Showers and tstms likely this afternoon.
.TONIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and
SW 2 ft at 5 seconds. Showers and tstms in the evening, then a
chance of showers with a slight chance of tstms after midnight.
Some tstms may produce heavy rainfall in the evening.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 5 seconds and SE 1 foot at 5 seconds. A slight chance of
showers in the morning.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail:
NE 3 ft at 6 seconds.
.TUE...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: E 3 ft at 7 seconds.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.THU...S winds 5 to 10 kt. Seas 2 ft.
.THU NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-192315-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
648 AM EDT Sun May 19 2024

.TODAY...W winds 10 to 15 kt, diminishing to 5 to 10 kt early
this afternoon, then becoming NE late. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of
showers and tstms this afternoon.
.TONIGHT...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: W 2 ft at 5 seconds and E 2 ft at 8 seconds,
becoming NE 3 ft at 8 seconds and S 2 ft at 5 seconds. Showers
and tstms likely in the evening, then a chance of showers with a
slight chance of tstms after midnight. Some tstms may produce
heavy rainfall in the evening.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft.
Wave Detail: NE 5 ft at 5 seconds. A slight chance of tstms in
the morning. A slight chance of showers.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail:
NE 5 ft at 7 seconds. A slight chance of showers.
.TUE...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave
Detail: NE 4 ft at 7 seconds. A slight chance of tstms in the
morning. A slight chance of showers.
.TUE 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.
.WED...NE winds 5 kt. Seas 3 ft.
.WED NIGHT...SE winds 5 to 10 kt. Seas 3 ft.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$