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fzus52 kchs 170520
cwfchs
expires:202512171800;;719004

coastal waters forecast
national weather service charleston sc
1219 am est wed dec 17 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


amz330-171800-
charleston harbor-
1220 am est wed dec 17 2025

.rest of tonight...light and variable winds, becoming nw 5 kt
late. 
.wed...nw winds 5 kt, becoming sw in the afternoon. 
.wed night...e winds 5 kt. a chance of rain after midnight. 
.thu...e winds 5 kt, becoming s in the afternoon. a chance of
showers in the morning, then showers with a chance of tstms in
the afternoon. 
.thu night...s winds 5 to 10 kt, becoming sw 10 to 15 kt with
gusts to 20 kt after midnight. showers with a chance of tstms in
the evening, then a chance of showers after midnight. 
.fri...w winds 10 to 15 kt. a slight chance of showers in the
morning. 
.fri night...nw winds 5 kt. 
.sat...e winds 5 kt. 
.sat night...sw winds 5 kt. 
.sun...w winds 5 kt. 
.sun night...n 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 53 degrees. 

$$
fzus52 kchs 170520
cwfchs
expires:202512171800;;719005

coastal waters forecast
national weather service charleston sc
1219 am est wed dec 17 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


amz350-171800-
waters from south santee river to edisto beach sc out 20 nm-
1220 am est wed dec 17 2025

.rest of tonight...w winds 5 kt. seas 2 to 3 ft. wave detail: e
2 ft at 10 seconds. 
.wed...nw winds 5 kt. seas 2 to 3 ft. wave detail: se 2 ft at
10 seconds. 
.wed night...e winds 5 kt, increasing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: se 2 ft at 10 seconds and
se 1 foot at 4 seconds. a slight chance of rain after midnight. 
.thu...se winds 5 to 10 kt, becoming s in the afternoon. seas
2 to 3 ft, building to 3 to 4 ft in the afternoon. wave detail:
se 3 ft at 5 seconds and se 2 ft at 9 seconds, becoming se 4 ft
at 9 seconds and se 3 ft at 5 seconds. showers likely in the
morning, then showers with a chance of tstms in the afternoon. 
.thu night...s winds 10 to 15 kt, becoming sw 15 to 20 kt after
midnight. seas 4 to 5 ft, building to 4 to 6 ft after midnight.
wave detail: se 5 ft at 7 seconds, becoming se 6 ft at 8 seconds.
showers with a chance of tstms in the evening, then showers
likely after midnight. 
.fri...w winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 5 to 7 ft. wave detail: se 7 ft at 9 seconds and
sw 4 ft at 8 seconds. a slight chance of showers in the morning. 
.fri night...nw winds 5 to 10 kt. seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. 
.sat night...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.sun...w winds 5 to 10 kt. seas 2 to 3 ft. 
.sun night...n winds 10 to 15 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

$$
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