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(1/2)
Latest Coastal Waters Forecast by KBOX
Issued 4/20/2026 1:05 PM America/New_York.
Valid through 4/21/2026 2:00 AM America/New_York.
fzus51 kbox 201705
cwfbox
expires:202604210600;;699504
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt mon apr 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz230-210600-
boston harbor-
105 pm edt mon apr 20 2026
.this afternoon...w winds around 10 kt. waves 1 foot or less.
.tonight...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight.
.tue...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less.
.tue night...s winds 10 to 15 kt. waves 1 foot or less.
.wed and wed night...sw winds 5 to 10 kt. waves around 2 ft.
.thu through fri night...e winds 5 to 10 kt. waves 1 foot or
less.
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.
$$
(2/2)
Latest Coastal Waters Forecast by KBOX
Issued 4/20/2026 1:05 PM America/New_York.
Valid through 4/21/2026 2:00 AM America/New_York.
fzus51 kbox 201705
cwfbox
expires:202604210600;;699493
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt mon apr 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz250-210600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 pm edt mon apr 20 2026
.this afternoon...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: w 2 ft at 4 seconds and se 2 ft at 7 seconds.
.tonight...n winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and nw
2 ft at 4 seconds.
.tue...n winds 10 to 15 kt, becoming ne 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: n 3 ft at 5 seconds and e
2 ft at 8 seconds.
.tue night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 4 seconds and se 2 ft at 7 seconds.
.wed and wed night...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and e 2 ft at
9 seconds.
.thu through fri night...nw winds 5 to 10 kt. seas around 2 ft.
wave detail: nw 2 ft at 4 seconds and ne 2 ft at 5 seconds.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
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