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(1/2)
Latest Coastal Waters Forecast by KBOX
Issued 9/21/2026 4:03 PM America/New_York.
Valid through 9/22/2026 5:00 AM America/New_York.
fzus51 kbox 212003
cwfbox
expires:202609220900;;835038
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt mon sep 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz235-220900-
rhode island sound-
403 pm edt mon sep 21 2026
...small craft advisory in effect until 5 pm edt this afternoon...
...gale watch in effect from tuesday afternoon through thursday
afternoon...
.tonight...ne winds 15 to 20 kt. seas 2 to 4 ft. wave detail: ne
4 ft at 5 seconds and w 1 foot at 5 seconds.
.tue...ne winds 20 to 25 kt. seas 3 to 5 ft. wave detail: ne 5 ft
at 5 seconds and se 1 foot at 12 seconds.
.tue night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: e 5 ft at 7 seconds and n 2 ft at
4 seconds.
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: ne 7 ft at 6 seconds and se 5 ft at 9 seconds.
.wed night and thu...ne winds 25 to 30 kt with gusts up to 40 kt.
seas 5 to 8 ft. wave detail: se 8 ft at 12 seconds and ne 7 ft at
7 seconds.
.thu night...ne winds 25 to 30 kt, increasing to 30 to 35 kt
after midnight. seas 5 to 8 ft. wave detail: ne 8 ft at 6 seconds
and se 7 ft at 13 seconds. a chance of showers.
.fri through sat...n winds 25 to 35 kt with gusts up to 45 kt.
seas 6 to 9 ft. showers likely.
.sat night...n winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 7 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.
$$
(2/2)
Latest Coastal Waters Forecast by KBOX
Issued 9/21/2026 4:03 PM America/New_York.
Valid through 9/22/2026 5:00 AM America/New_York.
fzus51 kbox 212003
cwfbox
expires:202609220900;;835041
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt mon sep 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz236-220900-
narragansett bay-
403 pm edt mon sep 21 2026
.tonight...ne winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft.
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft.
.tue night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. waves 2 to 3 ft.
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. waves 2 to
3 ft.
.wed night and thu...ne winds 20 to 25 kt with gusts up to 35 kt.
waves 2 to 3 ft, except 4 to 6 ft at the bay entrance.
.thu night...ne winds 20 to 25 kt with gusts up to 35 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. a chance of
showers after midnight.
.fri and fri night...n winds 25 to 30 kt with gusts up to 45 kt.
waves around 3 ft, except 4 to 6 ft at the bay entrance. showers
likely.
.sat...n winds 25 to 30 kt with gusts up to 45 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. showers likely.
.sat night...n winds 20 to 25 kt with gusts up to 35 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. showers
likely.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
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