(1/3)
Latest Coastal Waters Forecast by KBOX
Issued 9/21/2026 4:03 AM America/New_York.
Valid through 9/21/2026 5:00 PM America/New_York.
fzus51 kbox 210803
cwfbox
expires:202609212100;;807586
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt mon sep 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz237-212100-
block island sound-
403 am edt mon sep 21 2026
...small craft advisory in effect from 8 am edt this morning
through this afternoon...
...gale watch in effect from tuesday afternoon through thursday
afternoon...
.today...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: ne 3 ft at 4 seconds and se 2 ft at
10 seconds. a chance of showers this morning.
.tonight...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: ne 3 ft at 5 seconds and sw 1 foot at
5 seconds.
.tue...ne winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: ne 5 ft at 6 seconds and se 1 foot at
9 seconds.
.tue night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail:
ne 5 ft at 5 seconds and se 1 foot at 10 seconds.
.wed and wed night...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 5 to 8 ft. wave detail: e 8 ft at 9 seconds and e 7 ft at
6 seconds.
.thu...ne winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
9 ft. wave detail: se 9 ft at 12 seconds and ne 5 ft at
5 seconds.
.thu night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
6 to 9 ft. a chance of showers.
.fri...n winds 25 to 30 kt with gusts up to 45 kt. seas 7 to
10 ft. a chance of showers.
.fri night...n winds around 30 kt with gusts up to 45 kt. seas
7 to 10 ft. showers likely.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
(2/3)
Latest Coastal Waters Forecast by KBOX
Issued 9/21/2026 4:03 AM America/New_York.
Valid through 9/21/2026 5:00 PM America/New_York.
fzus51 kbox 210803
cwfbox
expires:202609212100;;807580
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt mon sep 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz255-212100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt mon sep 21 2026
...small craft advisory in effect from 8 am edt this morning
through late tonight...
...gale watch in effect from tuesday afternoon through thursday
afternoon...
.today...ne winds 20 to 25 kt. seas 2 to 4 ft. wave detail: ne
4 ft at 5 seconds and se 2 ft at 9 seconds. patchy fog. a chance
of showers this morning with vsby 1 to 3 nm.
.tonight...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: ne 4 ft at 5 seconds and se 2 ft at 8 seconds.
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: n 6 ft at 6 seconds and se 1 foot at
15 seconds.
.tue night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. wave detail: ne 7 ft at 7 seconds and e 5 ft at
13 seconds.
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
9 ft. wave detail: e 8 ft at 8 seconds and n 1 foot at 4 seconds.
.wed night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
8 to 11 ft. wave detail: e 9 ft at 9 seconds and ne 7 ft at
7 seconds.
.thu...ne winds 25 to 30 kt with gusts up to 35 kt. seas 9 to
12 ft.
.thu night...ne winds around 30 kt with gusts up to 40 kt. seas
9 to 12 ft. a chance of showers.
.fri...ne winds 30 to 40 kt with gusts up to 50 kt. seas 9 to
13 ft. showers likely.
.fri night...ne winds 35 to 40 kt with gusts up to 50 kt. seas
9 to 13 ft. showers likely.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
(3/3)
Latest Coastal Waters Forecast by KPHI
Issued 9/21/2026 4:04 AM America/New_York.
Valid through 9/21/2026 5:00 PM America/New_York.
fzus51 kphi 210804
cwfphi
expires:202609212100;;807643
coastal waters forecast for new jersey and delaware
national weather service mount holly nj
401 am edt mon sep 21 2026
sandy hook nj to fenwick island de to 60 nm offshore and delaware
bay
anz450-212100-
coastal waters from sandy hook to manasquan inlet nj out 20 nm-
401 am edt mon sep 21 2026
...small craft advisory in effect from 11 am edt this morning
through tuesday afternoon...
...gale watch in effect from tuesday evening through thursday
afternoon...
.today...n winds 15 to 20 kt, becoming ne 10 to 15 kt this
afternoon. seas 3 to 4 ft. wave detail: ne 4 ft at 8 seconds and
s 1 foot at 5 seconds.
.tonight...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 6 ft at 7 seconds. a chance of showers after
midnight.
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
8 ft. wave detail: e 7 ft at 7 seconds. showers likely, mainly in
the morning.
.tue night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
7 to 9 ft. wave detail: e 9 ft at 9 seconds. a chance of showers
after midnight.
.wed...ne winds 25 to 30 kt. seas 8 to 11 ft. wave detail: e
10 ft at 9 seconds. a chance of showers in the morning.
.wed night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
10 to 11 ft. wave detail: e 11 ft at 10 seconds.
.thu...ne winds 20 to 25 kt. seas 10 to 11 ft.
.thu night...ne winds 25 to 30 kt. seas 10 to 12 ft. a chance of
showers after midnight.
.fri...n winds 25 to 30 kt. seas 10 to 13 ft. a chance of
showers.
.fri night...n winds 25 to 30 kt. seas 10 to 13 ft. a chance of
showers.
$$
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