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(1/6)
Latest Coastal Waters Forecast by KCHS
Issued 9/18/2025 1:23 AM America/New_York.
Valid through 9/18/2025 2:30 PM America/New_York.
fzus52 kchs 180523
cwfchs
expires:202509181830;;173181
coastal waters forecast
national weather service charleston sc
123 am edt thu sep 18 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
amz350-181830-
waters from south santee river to edisto beach sc out 20 nm-
123 am edt thu sep 18 2025
.rest of tonight...sw winds 5 to 10 kt. seas 1 to 2 ft. wave
detail: sw 2 ft at 3 seconds and e 2 ft at 8 seconds.
.thu...w winds 5 kt, becoming s 5 to 10 kt in the afternoon. seas
1 to 2 ft. wave detail: e 2 ft at 8 seconds and sw 1 foot at 3
seconds.
.thu night...se winds 5 to 10 kt, diminishing to 5 kt after
midnight. seas 1 to 2 ft. wave detail: e 2 ft at 8 seconds and sw
1 foot at 3 seconds.
.fri...ne winds 5 kt, becoming e in the afternoon. seas 2 ft.
wave detail: e 2 ft at 9 seconds and s 1 foot at 4 seconds.
.fri night...e winds 5 to 10 kt. seas 2 ft. wave detail: se 2 ft
at 5 seconds and e 2 ft at 8 seconds.
.sat...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. wave detail: e 3 ft at 8 seconds, becoming e 4 ft at
8 seconds. a slight chance of showers in the afternoon.
.sat night...ne winds 15 to 20 kt. seas 4 to 5 ft. a slight
chance of showers. a slight chance of tstms after midnight.
.sun...ne winds 20 to 25 kt. seas 4 to 6 ft. a slight chance of
showers and tstms.
.sun night...ne winds 15 to 20 kt. seas 5 to 6 ft. a slight
chance of showers and tstms.
.mon...ne winds 15 to 20 kt. seas 4 to 6 ft. a chance of showers
and tstms.
.mon night...e winds 10 to 15 kt. seas 4 to 5 ft. a chance of
showers and tstms.
winds and seas higher in and near tstms.
$$
(2/6)
Latest Coastal Waters Forecast by KCHS
Issued 9/18/2025 1:23 AM America/New_York.
Valid through 9/18/2025 2:30 PM America/New_York.
fzus52 kchs 180523
cwfchs
expires:202509181830;;173182
coastal waters forecast
national weather service charleston sc
123 am edt thu sep 18 2025
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz352-181830-
waters from edisto beach sc to savannah ga out 20 nm-
123 am edt thu sep 18 2025
.rest of tonight...sw winds 5 to 10 kt. seas 1 to 2 ft. wave
detail: e 2 ft at 8 seconds and sw 1 foot at 3 seconds.
.thu...w winds 5 kt, becoming s 5 to 10 kt in the afternoon. seas
1 to 2 ft. wave detail: e 2 ft at 8 seconds and sw 1 foot at 3
seconds.
.thu night...se winds 5 to 10 kt. seas 1 to 2 ft. wave detail: e
2 ft at 8 seconds and s 1 foot at 2 seconds.
.fri...ne winds 5 to 10 kt. seas 2 ft. wave detail: e 2 ft at
8 seconds and s 1 foot at 4 seconds.
.fri night...e winds 5 to 10 kt. seas 2 ft. wave detail: se 2 ft
at 8 seconds.
.sat...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. wave detail: e 3 ft at 8 seconds, becoming e 4 ft at
8 seconds. a slight chance of showers and tstms in the afternoon.
.sat night...ne winds 15 to 20 kt. seas 3 to 4 ft. a slight
chance of showers and tstms.
.sun...ne winds 20 to 25 kt. seas 4 to 6 ft. a slight chance of
showers and tstms.
.sun night...ne winds 15 to 20 kt. seas 4 to 6 ft. a slight
chance of showers and tstms.
.mon...ne winds 15 to 20 kt. seas 4 to 5 ft. a chance of showers
and tstms.
.mon night...e winds 10 to 15 kt. seas 4 to 5 ft. a chance of
showers and tstms.
winds and seas higher in and near tstms.
$$
(3/6)
Latest Coastal Waters Forecast by KCHS
Issued 9/18/2025 1:23 AM America/New_York.
Valid through 9/18/2025 2:30 PM America/New_York.
fzus52 kchs 180523
cwfchs
expires:202509181830;;173183
coastal waters forecast
national weather service charleston sc
123 am edt thu sep 18 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
amz354-181830-
waters from savannah ga to altamaha sound ga out 20 nm, including
grays reef national marine sanctuary-
123 am edt thu sep 18 2025
.rest of tonight...s winds 5 to 10 kt. seas 1 to 2 ft. wave
detail: e 2 ft at 8 seconds and sw 1 foot at 3 seconds.
.thu...w winds 5 kt, becoming e 5 to 10 kt in the afternoon. seas
1 to 2 ft. wave detail: e 2 ft at 8 seconds and sw 1 foot at 3
seconds.
.thu night...se winds 5 to 10 kt. seas 1 to 2 ft. wave detail: e
2 ft at 8 seconds and se 1 foot at 3 seconds.
.fri...ne winds 5 to 10 kt. seas 2 ft. wave detail: e 2 ft at
8 seconds and se 1 foot at 4 seconds.
.fri night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
2 ft at 8 seconds.
.sat...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. wave detail: e 3 ft at 8 seconds, becoming e 4 ft at
8 seconds. a slight chance of showers and tstms in the afternoon.
.sat night...ne winds 15 to 20 kt. seas 4 ft. a slight chance of
showers and tstms.
.sun...ne winds 20 to 25 kt. seas 4 to 5 ft. a slight chance of
showers and tstms.
.sun night...ne winds 15 to 20 kt. seas 4 to 5 ft. a slight
chance of showers and tstms.
.mon...ne winds 15 to 20 kt. seas 4 to 5 ft. a chance of showers
and tstms.
.mon night...e winds 10 to 15 kt. seas 3 to 4 ft. a slight chance
of showers and tstms.
winds and seas higher in and near tstms.
$$
(4/6)
Latest Coastal Waters Forecast by KCHS
Issued 9/18/2025 1:23 AM America/New_York.
Valid through 9/18/2025 2:30 PM America/New_York.
fzus52 kchs 180523
cwfchs
expires:202509181830;;173184
coastal waters forecast
national weather service charleston sc
123 am edt thu sep 18 2025
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz374-181830-
waters from savannah ga to altamaha sound ga from 20 to 60 nm-
123 am edt thu sep 18 2025
.rest of tonight...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: e 2 ft at 8 seconds.
.thu...w winds 5 kt, becoming ne in the afternoon. seas 2 ft.
wave detail: e 2 ft at 8 seconds.
.thu night...e winds 5 to 10 kt. seas 2 ft. wave detail: e 2 ft
at 8 seconds.
.fri...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 8 seconds and se 1 foot at 4 seconds. a slight chance of
showers and tstms.
.fri night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
3 ft at 8 seconds. a slight chance of showers. a slight chance of
tstms after midnight.
.sat...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. wave detail: e 4 ft at 8 seconds. a slight chance of
tstms. a slight chance of showers in the morning, then a chance
of showers in the afternoon.
.sat night...ne winds 15 to 20 kt. seas 4 to 5 ft. a chance of
showers with a slight chance of tstms.
.sun...ne winds 20 to 25 kt. seas 5 to 6 ft. a chance of showers
with a slight chance of tstms.
.sun night...ne winds 15 to 20 kt. seas 5 to 6 ft. a chance of
showers and tstms.
.mon...ne winds 15 kt. seas 5 ft. a chance of showers and tstms.
.mon night...e winds 10 to 15 kt. seas 4 to 5 ft. a chance of
showers and tstms.
winds and seas higher in and near tstms.
$$
(5/6)
Latest Coastal Waters Forecast by KJAX
Issued 9/18/2025 12:55 AM America/New_York.
Valid through 9/18/2025 3:00 PM America/New_York.
fzus52 kjax 180455
cwfjax
expires:202509181900;;171330
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
1255 am edt thu sep 18 2025
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.
amz450-452-454-181900-
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-
1255 am edt thu sep 18 2025
.rest of tonight...southeast winds 5 to 10 knots. seas 2 to
3 feet. wave detail: east 3 feet at 9 seconds and southeast
2 feet at 5 seconds. intracoastal waters light chop. a slight
chance of showers late this evening.
.thursday...northeast winds 5 to 10 knots, becoming east 10 to
15 knots in the afternoon. seas 2 to 3 feet. wave detail: east
2 feet at 8 seconds. intracoastal waters a moderate chop. a
slight chance of showers. a slight chance of thunderstorms in the
afternoon.
.thursday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas 2 to 3 feet. wave detail: southeast
2 feet at 5 seconds and east 2 feet at 8 seconds. intracoastal
waters a moderate chop. a slight chance of showers after
midnight.
.friday...northeast winds 10 to 15 knots. seas 2 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 5 seconds and
east 2 feet at 8 seconds. intracoastal waters a moderate chop. a
slight chance of showers. a slight chance of thunderstorms in the
afternoon.
.friday night...northeast winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 5 seconds and
east 3 feet at 8 seconds. intracoastal waters a moderate chop. a
slight chance of showers. a slight chance of thunderstorms after
midnight.
.saturday...northeast winds 15 to 20 knots. seas 3 to 5 feet,
occasionally to 6 feet. wave detail: northeast 4 feet at
5 seconds and east 4 feet at 8 seconds. intracoastal waters
choppy. a chance of showers. a slight chance of thunderstorms in
the morning, then a chance of thunderstorms in the afternoon.
.saturday night...northeast winds 15 to 20 knots. seas 4 to
5 feet, occasionally to 6 feet. intracoastal waters choppy. a
slight chance of showers and thunderstorms.
.sunday...northeast winds 15 to 20 knots. seas 4 to 6 feet,
occasionally to 8 feet. intracoastal waters choppy. a slight
chance of thunderstorms in the morning. a chance of showers
through the day. a chance of thunderstorms in the afternoon. a
slight chance of showers and thunderstorms through the night.
.monday...east winds 10 to 15 knots. seas 3 to 5 feet,
occasionally to 6 feet. intracoastal waters a moderate chop. a
slight chance of thunderstorms in the morning. a chance of
showers through the day. a chance of thunderstorms in the
afternoon, then a slight chance of showers in the evening. a
slight chance of thunderstorms through the night. a chance of
showers after midnight.
winds and waves higher in and near thunderstorms.
$$
(6/6)
Latest Coastal Waters Forecast by KJAX
Issued 9/18/2025 12:55 AM America/New_York.
Valid through 9/18/2025 3:00 PM America/New_York.
fzus52 kjax 180455
cwfjax
expires:202509181900;;171331
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
1255 am edt thu sep 18 2025
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.
amz470-472-474-181900-
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-
waters from st. augustine to flagler beach fl from 20 to 60 nm-
1255 am edt thu sep 18 2025
.rest of tonight...southeast winds 5 to 10 knots. seas around
3 feet. wave detail: northeast 3 feet at 9 seconds and southeast
2 feet at 5 seconds. a chance of showers with a slight chance of
thunderstorms.
.thursday...east winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. seas around 3 feet. wave detail: east
3 feet at 8 seconds and southeast 2 feet at 5 seconds. a slight
chance of thunderstorms. a slight chance of showers in the
morning, then a chance of showers in the afternoon.
.thursday night...east winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. seas around 3 feet. wave detail: east
3 feet at 8 seconds and southeast 2 feet at 5 seconds. a slight
chance of thunderstorms. a slight chance of showers in the
evening, then a chance of showers after midnight.
.friday...northeast winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 7 seconds. a
chance of showers. a slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.friday night...northeast winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 7 seconds. a
slight chance of thunderstorms. a slight chance of showers in the
evening, then a chance of showers after midnight.
.saturday and saturday night...northeast winds 15 to 20 knots.
seas 4 to 5 feet, occasionally to 6 feet. wave detail: east
5 feet at 7 seconds. a chance of showers and thunderstorms.
.sunday through monday...east winds 15 to 20 knots. seas 4 to
6 feet, occasionally to 8 feet. a chance of showers and
thunderstorms.
winds and seas higher in and near thunderstorms.
$$
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