(1/4)
Latest Coastal Waters Forecast by KCHS
Issued 2/20/2026 12:19 PM America/New_York.
Valid through 2/21/2026 2:30 AM America/New_York.
fzus52 kchs 201719
cwfchs
expires:202602210730;;967356
coastal waters forecast
national weather service charleston sc
1219 pm est fri feb 20 2026
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
amz350-210730-
waters from south santee river to edisto beach sc out 20 nm-
1219 pm est fri feb 20 2026
...dense fog advisory in effect until 5 pm est this afternoon...
...small craft advisory in effect until 7 pm est this evening...
.this afternoon...sw winds 15 to 20 kt with gusts to 25 kt. seas
3 to 5 ft. wave detail: sw 5 ft at 6 seconds and e 1 foot at 12
seconds. dense fog with vsby 1/2 nm or less. a slight chance of
showers late.
.tonight...sw winds 10 to 15 kt. seas 3 to 5 ft, subsiding to 2
to 3 ft after midnight. wave detail: s 4 ft at 6 seconds and e 1
foot at 12 seconds, becoming s 3 ft at 6 seconds and e 1 foot at
12 seconds. a chance of showers. a slight chance of tstms in the
evening, then a chance of tstms after midnight. patchy fog after
midnight.
.sat...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 6 seconds and e 1 foot at 11 seconds. a slight chance of
tstms. a chance of showers in the morning, then showers likely in
the afternoon.
.sat night...sw winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds and e
1 foot at 10 seconds. showers with a chance of tstms.
.sun...w winds 15 to 20 kt, becoming nw 20 to 25 kt in the
afternoon. seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. wave detail: sw 4 ft at 5 seconds and e 1 foot at
9 seconds, becoming w 5 ft at 5 seconds and e 1 foot at
9 seconds. showers likely, mainly in the morning.
.sun night...nw winds 25 to 30 kt. seas 4 to 6 ft. wave detail: w
6 ft at 5 seconds and e 1 foot at 9 seconds. a slight chance of
showers in the evening.
.mon...nw winds 20 to 25 kt. seas 4 to 6 ft.
.mon night...nw winds 20 to 25 kt. seas 3 to 4 ft.
.tue...nw winds 15 to 20 kt. seas 2 to 3 ft.
.tue night...sw winds 10 to 15 kt. seas 2 ft.
winds and seas higher in and near tstms.
$$
(2/4)
Latest Coastal Waters Forecast by KCHS
Issued 2/20/2026 12:19 PM America/New_York.
Valid through 2/21/2026 2:30 AM America/New_York.
fzus52 kchs 201719
cwfchs
expires:202602210730;;967357
coastal waters forecast
national weather service charleston sc
1219 pm est fri feb 20 2026
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
amz352-210730-
waters from edisto beach sc to savannah ga out 20 nm-
1219 pm est fri feb 20 2026
...dense fog advisory in effect until 5 pm est this afternoon...
.this afternoon...sw winds 15 to 20 kt with gusts to 25 kt,
diminishing to 10 to 15 kt late. seas 3 to 4 ft. wave detail: s 4
ft at 5 seconds and e 1 foot at 12 seconds. dense fog with vsby
1/2 nm or less. a slight chance of showers early, then a chance
of showers late.
.tonight...sw winds 10 kt. seas 2 to 3 ft. wave detail: s 3 ft at
5 seconds and se 1 foot at 8 seconds. a chance of showers with a
slight chance of tstms. patchy fog after midnight with vsby 1 to
3 nm.
.sat...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 5 seconds and se 1 foot at 8 seconds. patchy fog in the
morning. a chance of showers in the morning, then showers likely
with a slight chance of tstms in the afternoon. vsby 1 nm or
less.
.sat night...sw winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: s 2 ft at 5 seconds and e
1 foot at 10 seconds. showers with a chance of tstms in the
evening, then showers with a slight chance of tstms after
midnight.
.sun...w winds 15 to 20 kt, becoming nw 20 to 25 kt in the
afternoon. seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. wave detail: sw 3 ft at 5 seconds and e 1 foot at
9 seconds, becoming w 4 ft at 4 seconds and e 1 foot at
9 seconds. showers likely, mainly in the morning.
.sun night...nw winds 25 to 30 kt. seas 4 to 6 ft. wave detail:
nw 6 ft at 5 seconds and e 1 foot at 10 seconds.
.mon...nw winds 20 to 25 kt. seas 4 to 6 ft.
.mon night...nw winds 20 to 25 kt. seas 3 to 4 ft.
.tue...nw winds 10 to 15 kt. seas 2 to 3 ft.
.tue night...sw winds 10 to 15 kt. seas 2 ft.
winds and seas higher in and near tstms.
$$
(3/4)
Latest Coastal Waters Forecast by KCHS
Issued 2/20/2026 12:19 PM America/New_York.
Valid through 2/21/2026 2:30 AM America/New_York.
fzus52 kchs 201719
cwfchs
expires:202602210730;;967358
coastal waters forecast
national weather service charleston sc
1219 pm est fri feb 20 2026
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
amz354-210730-
waters from savannah ga to altamaha sound ga out 20 nm, including
grays reef national marine sanctuary-
1219 pm est fri feb 20 2026
...dense fog advisory in effect until 5 pm est this afternoon...
.this afternoon...sw winds 10 to 15 kt. seas 3 to 4 ft. wave
detail: se 3 ft at 6 seconds and e 1 foot at 13 seconds. dense fog
with vsby 1/2 nm or less. a slight chance of showers late.
.tonight...sw winds 10 kt. seas 2 to 3 ft. wave detail: s 2 ft at
5 seconds and se 1 foot at 8 seconds. a chance of showers, mainly
in the evening.
.sat...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 5 seconds and e 1 foot at 12 seconds. a chance of showers with
a slight chance of tstms in the afternoon.
.sat night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 4 seconds and se 1 foot at 8 seconds. showers with a
slight chance of tstms.
.sun...w winds 15 to 20 kt, becoming nw 20 to 25 kt in the
afternoon. seas 2 to 3 ft, building to 4 to 5 ft in the
afternoon. wave detail: w 3 ft at 4 seconds and e 1 foot at
10 seconds, becoming w 4 ft at 4 seconds and e 1 foot at
10 seconds. showers likely in the morning.
.sun night...nw winds 25 to 30 kt. seas 4 to 6 ft. wave detail:
nw 5 ft at 5 seconds and e 1 foot at 10 seconds.
.mon...nw winds 20 to 25 kt. seas 4 to 5 ft.
.mon night...nw winds 20 to 25 kt. seas 3 to 4 ft.
.tue...nw winds 10 to 15 kt. seas 2 to 3 ft.
.tue night...sw winds 5 to 10 kt. seas 2 ft.
winds and seas higher in and near tstms.
$$
(4/4)
Latest Coastal Waters Forecast by KCHS
Issued 2/20/2026 12:19 PM America/New_York.
Valid through 2/21/2026 2:30 AM America/New_York.
fzus52 kchs 201719
cwfchs
expires:202602210730;;967359
coastal waters forecast
national weather service charleston sc
1219 pm est fri feb 20 2026
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
amz374-210730-
waters from savannah ga to altamaha sound ga from 20 to 60 nm-
1219 pm est fri feb 20 2026
...dense fog advisory in effect until 5 pm est this afternoon...
...small craft advisory in effect until 5 pm est this afternoon...
.this afternoon...sw winds 15 to 20 kt with gusts to 25 kt,
diminishing to 10 to 15 kt late. seas 3 to 4 ft. wave detail: s 4
ft at 6 seconds and e 2 ft at 12 seconds. areas of dense fog with
vsby 1 nm or less, mainly w portions. a slight chance of showers
late.
.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: s
3 ft at 5 seconds and se 2 ft at 8 seconds. a slight chance of
showers.
.sat...sw winds 10 to 15 kt with gusts to 20 kt. seas 3 ft. wave
detail: s 3 ft at 6 seconds and e 1 foot at 12 seconds. a slight
chance of showers.
.sat night...sw winds 10 to 15 kt with gusts to 20 kt. seas 2 to
3 ft, building to 3 to 4 ft after midnight. wave detail: se 3 ft
at 6 seconds and e 1 foot at 11 seconds, becoming s 3 ft at
5 seconds and e 1 foot at 11 seconds. a slight chance of tstms.
showers.
.sun...w winds 20 to 25 kt, becoming nw 25 to 30 kt in the
afternoon. seas 4 to 5 ft, building to 5 to 7 ft in the
afternoon. wave detail: w 5 ft at 5 seconds and e 1 foot at
10 seconds, becoming w 7 ft at 5 seconds and e 1 foot at
9 seconds. showers likely in the morning.
.sun night...nw winds 30 to 35 kt with gusts to 40 kt. seas 7 to
9 ft. wave detail: nw 9 ft at 6 seconds and e 1 foot at 10
seconds.
.mon...nw winds 25 to 30 kt. seas 6 to 8 ft.
.mon night...nw winds 20 to 25 kt. seas 5 to 7 ft.
.tue...nw winds 15 to 20 kt. seas 3 to 4 ft.
.tue night...sw winds 5 to 10 kt. seas 2 to 3 ft.
winds and seas higher in and near tstms.
$$
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