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National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 240812
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
312 AM EST Mon Feb 24 2020

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

AMZ300-241930-
312 AM EST Mon Feb 24 2020

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A developing warm front will lift north of the region tonight,
followed by a pair of cold fronts during the middle of the week.
High pressure returns Thursday and Friday, with a weak cold front
expected Saturday.



AMZ330-241930-
Charleston Harbor-
312 AM EST Mon Feb 24 2020

TODAY
Variable winds 5 kt, becoming southeast this afternoon.
A slight chance of showers this morning, then a chance of showers
this afternoon.

TONIGHT
S winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. A chance of showers in the evening, then showers after
midnight.

TUE
SW winds 10 to 15 kt with gusts to 20 kt. Showers.

TUE NIGHT
SW winds 10 kt. Showers likely.

WED
SW winds 10 to 15 kt. A chance of showers, mainly in the
morning.

WED NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft.

THU
W winds 15 kt.

THU NIGHT
W winds 10 to 15 kt.

FRI
W winds 10 to 15 kt.

FRI NIGHT
W winds 15 to 20 kt. Waves 1 to 2 ft. 

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 54 degrees.



AMZ350-241930-
Waters from South Santee River to Edisto Beach SC out 20 NM-
312 AM EST Mon Feb 24 2020

TODAY
Variable winds 5 kt, becoming S this afternoon. Seas 2
to 3 ft. A slight chance of showers this afternoon.

TONIGHT
S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A
chance of showers in the evening, then showers after midnight.

TUE
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
building to 5 to 7 ft in the afternoon. Showers.

TUE NIGHT
SW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Showers likely.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. A chance of showers.

WED NIGHT
W winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. A
slight chance of showers.

THU
NW winds 20 to 25 kt. Seas 3 to 4 ft.

THU NIGHT
W winds 10 to 15 kt. Seas 3 to 4 ft.

FRI
W winds 15 to 20 kt. Seas 3 to 4 ft.

FRI NIGHT
W winds 20 to 25 kt. Seas 3 to 4 ft. 



AMZ352-241930-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
312 AM EST Mon Feb 24 2020

TODAY
Variable winds 5 to 10 kt. Seas 2 to 3 ft. A slight
chance of showers this afternoon.

TONIGHT
S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. A chance of showers in the evening, then showers after
midnight.

TUE
SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 4 to 5 ft, building to 4 to 6 ft in the
afternoon. Showers.

TUE NIGHT
SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers.

WED
SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.

WED NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight. A slight chance of
showers.

THU
NW winds 15 to 20 kt. Seas 3 to 4 ft.

THU NIGHT
NW winds 10 to 15 kt. Seas 3 to 4 ft.

FRI
W winds 10 to 15 kt. Seas 3 to 4 ft.

FRI NIGHT
W winds 15 to 20 kt. Seas 3 to 4 ft. 



AMZ354-241930-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
312 AM EST Mon Feb 24 2020

TODAY
Variable winds 5 to 10 kt. Seas 2 to 3 ft.

TONIGHT
S winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers in the evening, then showers after midnight.

TUE
S winds 10 to 15 kt. Seas 3 to 4 ft. Showers.

TUE NIGHT
SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Showers.

WED
SW winds 10 to 15 kt. Seas 2 ft. A chance of showers,
mainly in the morning.

WED NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight.

THU
NW winds 15 to 20 kt. Seas 3 to 4 ft.

THU NIGHT
NW winds 10 to 15 kt. Seas 3 ft.

FRI
W winds 10 to 15 kt. Seas 3 to 4 ft.

FRI NIGHT
W winds 15 to 20 kt. Seas 3 to 4 ft. 



AMZ374-241930-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
312 AM EST Mon Feb 24 2020

TODAY
SE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt late. Seas 3 to 5 ft.

TONIGHT
S winds 15 to 20 kt. Seas 4 to 5 ft, building to 5 to
6 ft after midnight. A chance of showers in the evening, then
showers after midnight.

TUE
SW winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 7 ft.
Showers.

TUE NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Seas 4 to
6 ft, subsiding to 4 to 5 ft after midnight. Showers.

WED
SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers.

WED NIGHT
W winds 20 to 25 kt with gusts to 30 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. A slight chance of
showers.

THU
NW winds 20 to 25 kt. Seas 5 to 7 ft.

THU NIGHT
NW winds 15 to 20 kt. Seas 4 to 6 ft.

FRI
W winds 15 to 20 kt. Seas 4 to 5 ft.

FRI NIGHT
NW winds 20 to 25 kt. Seas 4 to 6 ft.