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(1/2)
Latest Coastal Waters Forecast by KBOX
Issued 10/20/2026 4:04 PM America/New_York.
Valid through 10/21/2026 5:00 AM America/New_York.
fzus51 kbox 202004
cwfbox
expires:202610210900;;902091
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz230-210900-
boston harbor-
404 pm edt tue oct 20 2026
...small craft advisory in effect through late wednesday night...
.tonight...ne winds 15 to 20 kt with gusts up to 30 kt. waves
2 to 3 ft.
.wed...ne winds 15 to 20 kt with gusts up to 30 kt. waves 2 to
3 ft.
.wed night...ne winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft.
.thu...n winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves around 2 ft.
.thu night through fri night...nw winds 15 to 20 kt with gusts up
to 25 kt. waves around 2 ft, except 3 to 5 ft at the outer harbor
entrance.
.sat through sun night...sw winds 5 to 10 kt. waves 1 foot or
less, except 2 to 4 ft at the outer harbor entrance.
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.
$$
(2/2)
Latest Coastal Waters Forecast by KBOX
Issued 10/20/2026 4:04 PM America/New_York.
Valid through 10/21/2026 5:00 AM America/New_York.
fzus51 kbox 202004
cwfbox
expires:202610210900;;902080
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz250-210900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt tue oct 20 2026
...small craft advisory in effect through thursday morning...
.tonight...ne winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
8 ft. wave detail: ne 8 ft at 8 seconds and nw 2 ft at 5 seconds.
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 6 to
8 ft. wave detail: ne 8 ft at 8 seconds and nw 2 ft at 5 seconds.
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 7 ft. wave detail: n 7 ft at 6 seconds and e 7 ft at
10 seconds.
.thu...n winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: ne
7 ft at 9 seconds and e 7 ft at 10 seconds.
.thu night through fri night...n winds 20 to 25 kt with gusts up
to 30 kt. seas 5 to 8 ft. wave detail: ne 8 ft at 15 seconds and
e 7 ft at 9 seconds.
.sat...w winds 5 to 10 kt. seas 4 to 6 ft. wave detail: ne 6 ft
at 9 seconds and e 5 ft at 9 seconds.
.sat night through sun night...sw winds 5 to 10 kt. seas 2 to
4 ft.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
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