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(1/4)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 2:39 AM America/New_York.
Valid through 3/21/2026 4:00 PM America/New_York.
fzus52 kchs 210639
cwfchs
expires:202603212000;;045151
coastal waters forecast
national weather service charleston sc
239 am edt sat mar 21 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
amz350-212000-
waters from south santee river to edisto beach sc out 20 nm-
239 am edt sat mar 21 2026
.today...w winds 15 to 20 kt, becoming sw 10 to 15 kt with gusts
to 20 kt this afternoon. seas 4 to 5 ft. wave detail: sw 3 ft at
4 seconds and e 3 ft at 10 seconds.
.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw
3 ft at 4 seconds and e 3 ft at 10 seconds.
.sun...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw 3 ft
at 5 seconds and e 2 ft at 9 seconds.
.sun night...sw winds 15 to 20 kt. seas 3 to 4 ft. wave detail:
sw 4 ft at 5 seconds and e 2 ft at 9 seconds.
.mon...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft. wave
detail: sw 4 ft at 6 seconds and e 2 ft at 9 seconds. a slight
chance of showers in the afternoon.
.mon night...nw winds 15 to 20 kt, becoming ne 25 to 30 kt after
midnight. seas 3 to 4 ft, building to 4 to 6 ft after midnight.
wave detail: sw 4 ft at 6 seconds and e 1 foot at 9 seconds,
becoming ne 5 ft at 5 seconds and sw 2 ft at 5 seconds. a slight
chance of tstms in the evening. a slight chance of showers.
.tue...ne winds 25 to 30 kt. seas 7 to 9 ft.
.tue night...ne winds 20 to 25 kt. seas 5 to 7 ft. a slight
chance of showers.
.wed...ne winds 10 to 15 kt. seas 4 to 5 ft. a slight chance of
showers.
.wed night...se winds 5 to 10 kt. seas 3 to 4 ft.
winds and seas higher in and near tstms.
$$
(2/4)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 2:39 AM America/New_York.
Valid through 3/21/2026 4:00 PM America/New_York.
fzus52 kchs 210639
cwfchs
expires:202603212000;;045152
coastal waters forecast
national weather service charleston sc
239 am edt sat mar 21 2026
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz352-212000-
waters from edisto beach sc to savannah ga out 20 nm-
239 am edt sat mar 21 2026
.today...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e
3 ft at 10 seconds and sw 2 ft at 3 seconds.
.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw
3 ft at 4 seconds and e 3 ft at 10 seconds.
.sun...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw 3 ft
at 4 seconds and e 3 ft at 10 seconds.
.sun night...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft.
wave detail: s 3 ft at 4 seconds and e 2 ft at 10 seconds.
.mon...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft. wave
detail: sw 3 ft at 5 seconds and e 2 ft at 9 seconds. a slight
chance of showers in the afternoon.
.mon night...w winds 15 to 20 kt, becoming ne 25 to 30 kt after
midnight. seas 2 to 3 ft, building to 3 to 4 ft after midnight.
wave detail: sw 3 ft at 5 seconds and e 1 foot at 9 seconds,
becoming ne 4 ft at 4 seconds and sw 2 ft at 4 seconds. a chance
of tstms in the evening. a chance of showers.
.tue...ne winds 25 to 30 kt. seas 6 to 8 ft. a slight chance of
showers.
.tue night...ne winds 20 to 25 kt. seas 6 to 8 ft. a chance of
showers.
.wed...ne winds 10 to 15 kt. seas 4 to 5 ft. a slight chance of
showers.
.wed night...e winds 5 to 10 kt. seas 3 to 4 ft.
winds and seas higher in and near tstms.
$$
(3/4)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 2:39 AM America/New_York.
Valid through 3/21/2026 4:00 PM America/New_York.
fzus52 kchs 210639
cwfchs
expires:202603212000;;045153
coastal waters forecast
national weather service charleston sc
239 am edt sat mar 21 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
amz354-212000-
waters from savannah ga to altamaha sound ga out 20 nm, including
grays reef national marine sanctuary-
239 am edt sat mar 21 2026
.today...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e
3 ft at 10 seconds and sw 2 ft at 3 seconds.
.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e
3 ft at 10 seconds and sw 2 ft at 3 seconds.
.sun...w winds 10 to 15 kt, becoming sw in the afternoon. seas
3 to 4 ft. wave detail: e 3 ft at 10 seconds and sw 2 ft at
4 seconds.
.sun night...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft.
wave detail: s 3 ft at 4 seconds and e 3 ft at 10 seconds.
.mon...sw winds 10 to 15 kt. seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. wave detail: sw 3 ft at 4 seconds and e
2 ft at 9 seconds.
.mon night...w winds 10 to 15 kt, becoming ne 25 to 30 kt after
midnight. seas 2 to 3 ft, building to 3 to 4 ft after midnight.
wave detail: sw 2 ft at 4 seconds and e 2 ft at 9 seconds,
becoming ne 4 ft at 4 seconds and sw 2 ft at 4 seconds. a chance
of showers with a slight chance of tstms.
.tue...ne winds 25 to 30 kt. seas 6 to 8 ft. a slight chance of
showers.
.tue night...ne winds 20 to 25 kt. seas 6 to 8 ft. a chance of
showers.
.wed...ne winds 10 to 15 kt. seas 4 to 6 ft. a slight chance of
showers.
.wed night...e winds 5 to 10 kt. seas 4 to 5 ft.
winds and seas higher in and near tstms.
$$
(4/4)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 2:39 AM America/New_York.
Valid through 3/21/2026 4:00 PM America/New_York.
fzus52 kchs 210639
cwfchs
expires:202603212000;;045154
coastal waters forecast
national weather service charleston sc
239 am edt sat mar 21 2026
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz374-212000-
waters from savannah ga to altamaha sound ga from 20 to 60 nm-
239 am edt sat mar 21 2026
.today...sw winds 10 to 15 kt. seas 4 to 5 ft. wave detail: e
5 ft at 10 seconds.
.tonight...sw winds 10 to 15 kt with gusts to 20 kt. seas 4 to
5 ft. wave detail: e 5 ft at 10 seconds and sw 3 ft at 4 seconds.
.sun...sw winds 10 to 15 kt. seas 4 to 5 ft. wave detail: e 4 ft
at 10 seconds and sw 3 ft at 4 seconds.
.sun night...sw winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. seas 4 to 5 ft. wave detail: sw 4 ft at 5 seconds
and e 3 ft at 9 seconds.
.mon...w winds 15 to 20 kt, becoming sw 10 to 15 kt in the
afternoon. seas 4 to 5 ft, subsiding to 3 to 4 ft in the
afternoon. wave detail: sw 4 ft at 5 seconds and e 2 ft at
9 seconds.
.mon night...sw winds 10 to 15 kt with gusts to 20 kt, becoming
ne 20 to 25 kt with gusts to 35 kt after midnight. seas 3 to
4 ft, building to 4 to 5 ft after midnight. wave detail: sw 3 ft
at 4 seconds and e 2 ft at 9 seconds, becoming n 5 ft at
4 seconds and w 3 ft at 4 seconds. a chance of showers with a
slight chance of tstms.
.tue...ne winds 25 to 30 kt. seas 7 to 9 ft. a slight chance of
showers.
.tue night...e winds 20 to 25 kt. seas 8 to 10 ft. a chance of
showers.
.wed...e winds 10 to 15 kt. seas 5 to 7 ft. a slight chance of
showers.
.wed night...e winds 5 to 10 kt. seas 4 to 6 ft.
winds and seas higher in and near tstms.
$$
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