(1/6)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 5:39 AM America/New_York.
Valid through 3/21/2026 7:00 PM America/New_York.
fzus52 kchs 210939
cwfchs
expires:202603212300;;051929
coastal waters forecast
national weather service charleston sc
539 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
amz350-212300-
waters from south santee river to edisto beach sc out 20 nm-
539 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.
$$
(2/6)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 5:39 AM America/New_York.
Valid through 3/21/2026 7:00 PM America/New_York.
fzus52 kchs 210939
cwfchs
expires:202603212300;;051930
coastal waters forecast
national weather service charleston sc
539 am edt sat mar 21 2026
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz352-212300-
waters from edisto beach sc to savannah ga out 20 nm-
539 am edt sat mar 21 2026
.today...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e
3 ft at 10 seconds and sw 2 ft at 3 seconds.
.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw
3 ft at 4 seconds and e 3 ft at 10 seconds.
.sun...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw 3 ft
at 4 seconds and e 3 ft at 10 seconds.
.sun night...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft.
wave detail: s 3 ft at 4 seconds and e 2 ft at 10 seconds.
.mon...sw winds 15 kt with gusts to 20 kt. seas 3 to 4 ft. wave
detail: sw 3 ft at 5 seconds and e 2 ft at 9 seconds. a slight
chance of showers in the afternoon.
.mon night...w winds 15 to 20 kt, becoming ne 25 to 30 kt after
midnight. seas 2 to 3 ft, building to 3 to 4 ft after midnight.
wave detail: sw 3 ft at 5 seconds and e 1 foot at 9 seconds,
becoming ne 4 ft at 4 seconds and sw 2 ft at 4 seconds. a chance
of tstms in the evening. a chance of showers.
.tue...ne winds 25 to 30 kt. seas 6 to 8 ft. a slight chance of
showers.
.tue night...ne winds 20 to 25 kt. seas 6 to 8 ft. a chance of
showers.
.wed...ne winds 10 to 15 kt. seas 4 to 5 ft. a slight chance of
showers.
.wed night...e winds 5 to 10 kt. seas 3 to 4 ft.
winds and seas higher in and near tstms.
$$
(3/6)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 5:39 AM America/New_York.
Valid through 3/21/2026 7:00 PM America/New_York.
fzus52 kchs 210939
cwfchs
expires:202603212300;;051931
coastal waters forecast
national weather service charleston sc
539 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
amz354-212300-
waters from savannah ga to altamaha sound ga out 20 nm, including
grays reef national marine sanctuary-
539 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.
$$
(4/6)
Latest Coastal Waters Forecast by KCHS
Issued 3/21/2026 5:39 AM America/New_York.
Valid through 3/21/2026 7:00 PM America/New_York.
fzus52 kchs 210939
cwfchs
expires:202603212300;;051932
coastal waters forecast
national weather service charleston sc
539 am edt sat mar 21 2026
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz374-212300-
waters from savannah ga to altamaha sound ga from 20 to 60 nm-
539 am edt sat mar 21 2026
.today...sw winds 10 to 15 kt. seas 4 to 5 ft. wave detail: e
5 ft at 10 seconds.
.tonight...sw winds 10 to 15 kt with gusts to 20 kt. seas 4 to
5 ft. wave detail: e 5 ft at 10 seconds and sw 3 ft at 4 seconds.
.sun...sw winds 10 to 15 kt. seas 4 to 5 ft. wave detail: e 4 ft
at 10 seconds and sw 3 ft at 4 seconds.
.sun night...sw winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. seas 4 to 5 ft. wave detail: sw 4 ft at 5 seconds
and e 3 ft at 9 seconds.
.mon...w winds 15 to 20 kt, becoming sw 10 to 15 kt in the
afternoon. seas 4 to 5 ft, subsiding to 3 to 4 ft in the
afternoon. wave detail: sw 4 ft at 5 seconds and e 2 ft at
9 seconds.
.mon night...sw winds 10 to 15 kt with gusts to 20 kt, becoming
ne 20 to 25 kt with gusts to 35 kt after midnight. seas 3 to
4 ft, building to 4 to 5 ft after midnight. wave detail: sw 3 ft
at 4 seconds and e 2 ft at 9 seconds, becoming n 5 ft at
4 seconds and w 3 ft at 4 seconds. a chance of showers with a
slight chance of tstms.
.tue...ne winds 25 to 30 kt. seas 7 to 9 ft. a slight chance of
showers.
.tue night...e winds 20 to 25 kt. seas 8 to 10 ft. a chance of
showers.
.wed...e winds 10 to 15 kt. seas 5 to 7 ft. a slight chance of
showers.
.wed night...e winds 5 to 10 kt. seas 4 to 6 ft.
winds and seas higher in and near tstms.
$$
(5/6)
Latest Coastal Waters Forecast by KJAX
Issued 3/21/2026 5:36 AM America/New_York.
Valid through 3/21/2026 8:45 PM America/New_York.
fzus52 kjax 210936
cwfjax
expires:202603220045;;051591
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
536 am edt sat mar 21 2026
atlantic coastal waters from altamaha sound ga to flagler beach
fl out to 60 nm.
seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
amz450-452-454-220045-
coastal waters from altamaha sound to fernandina beach fl out
20 nm-
coastal waters from fernandina beach to st. augustine fl out
20 nm-
coastal waters from st. augustine to flagler beach fl out 20 nm-
536 am edt sat mar 21 2026
.today...west winds 10 knots, becoming southwest 5 to 10 knots this
afternoon. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 10 seconds. intracoastal waters light chop.
.tonight...southwest winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 10 seconds
and southwest 2 feet at 3 seconds. intracoastal waters a moderate
chop.
.sunday...west winds 10 to 15 knots, becoming south 5 to 10 knots
in the afternoon. seas 2 to 4 feet, occasionally to 5 feet. wave
detail: east 4 feet at 10 seconds and west 2 feet at 3 seconds.
intracoastal waters a moderate chop.
.sunday night...southwest winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: southwest 3 feet at
4 seconds and east 3 feet at 9 seconds. intracoastal waters a
moderate chop.
.monday...southwest winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: west 3 feet at 3 seconds and
east 2 feet at 9 seconds. intracoastal waters a moderate chop.
.monday night...west winds 10 to 15 knots, becoming north 20 to
25 knots after midnight. seas 2 to 4 feet, occasionally to
5 feet. wave detail: east 3 feet at 4 seconds and southwest
2 feet at 3 seconds. intracoastal waters rough. a slight chance
of showers in the evening.
.tuesday...northeast winds 25 to 30 knots, becoming east 15 to
20 knots. seas 5 to 8 feet, occasionally to 10 feet. intracoastal
waters very rough. a slight chance of showers in the morning. a
slight chance of thunderstorms through the day. a chance of
showers.
.wednesday...east winds 10 to 15 knots, diminishing to 5 to
10 knots. seas 5 to 7 feet, occasionally to 9 feet, subsiding to
4 to 5 feet, occasionally to 6 feet. intracoastal waters a
moderate chop. a slight chance of showers through the day.
winds and waves higher in and near thunderstorms.
$$
(6/6)
Latest Coastal Waters Forecast by KJAX
Issued 3/21/2026 5:36 AM America/New_York.
Valid through 3/21/2026 8:45 PM America/New_York.
fzus52 kjax 210936
cwfjax
expires:202603220045;;051592
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
536 am edt sat mar 21 2026
atlantic coastal waters from altamaha sound ga to flagler beach
fl out to 60 nm.
seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
amz470-472-220045-
waters from altamaha sound ga to fernandina beach fl from 20 to
60 nm-
waters from fernandina beach to st. augustine fl from 20 to 60 nm-
536 am edt sat mar 21 2026
.today...southwest winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: east 5 feet at 10 seconds.
.tonight...southwest winds 10 to 15 knots. seas 4 to 5 feet,
occasionally to 6 feet. wave detail: east 5 feet at 10 seconds
and southwest 3 feet at 3 seconds.
.sunday...west winds 10 to 15 knots, becoming south in the
afternoon. seas 3 to 5 feet, occasionally to 6 feet. wave detail:
east 4 feet at 10 seconds and west 3 feet at 4 seconds.
.sunday night...southwest winds 10 to 15 knots, becoming west
15 to 20 knots after midnight. seas 3 to 5 feet, occasionally to
6 feet. wave detail: southwest 4 feet at 5 seconds and east
3 feet at 9 seconds.
.monday...southwest winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: southwest 4 feet at
5 seconds and east 2 feet at 9 seconds.
.monday night...southwest winds 10 to 15 knots, becoming north
20 to 25 knots after midnight. seas 3 to 5 feet, occasionally to
6 feet. wave detail: northeast 4 feet at 4 seconds and southwest
3 feet at 4 seconds. a slight chance of showers and
thunderstorms.
.tuesday...east winds 20 to 25 knots. seas 5 to 8 feet,
occasionally to 10 feet, building to 7 to 10 feet, occasionally
to 13 feet. a slight chance of thunderstorms through the day. a
chance of showers.
.wednesday...east winds 10 to 15 knots. seas 5 to 8 feet,
occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally
to 8 feet. a chance of showers, mainly in the morning.
winds and seas higher in and near thunderstorms.
$$
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