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(1/4)
Latest Coastal Waters Forecast by KBOX
Issued 7/20/2026 10:04 AM America/New_York.
Valid through 7/20/2026 11:00 PM America/New_York.
fzus51 kbox 201404
cwfbox
expires:202607210300;;291419
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt mon jul 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz235-210300-
rhode island sound-
1004 am edt mon jul 20 2026
...gale watch in effect from tuesday afternoon through wednesday
evening...
.this afternoon...w winds around 5 kt, becoming s. seas 2 to
3 ft. wave detail: sw 3 ft at 7 seconds and se 1 foot at
12 seconds.
.tonight...s winds around 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and sw 1 foot at 5 seconds.
.tue...s winds 10 to 15 kt, becoming se 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 6 seconds and se 1 foot at 12 seconds. a chance of
showers and tstms in the afternoon.
.tue night...s winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft, building to 5 to
7 ft after midnight. wave detail: s 5 ft at 7 seconds, becoming
sw 7 ft at 7 seconds and e 1 foot at 11 seconds. showers with a
chance of tstms.
.wed...sw winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
8 ft. wave detail: s 8 ft at 9 seconds and ne 3 ft at 10 seconds.
showers with a chance of tstms in the morning, then a chance of
showers in the afternoon.
.wed night...sw winds 20 to 25 kt with gusts up to 30 kt,
becoming nw 10 to 15 kt with gusts up to 20 kt after midnight.
seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight. wave
detail: s 8 ft at 9 seconds and w 2 ft at 7 seconds, becoming s
6 ft at 9 seconds and w 3 ft at 8 seconds. a chance of showers.
.thu...nw winds 5 to 10 kt. seas 3 to 5 ft.
.thu night through fri night...e winds 5 to 10 kt. seas 2 to
4 ft.
winds and seas higher in and near tstms.
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.
$$
(2/4)
Latest Coastal Waters Forecast by KBOX
Issued 7/20/2026 10:04 AM America/New_York.
Valid through 7/20/2026 11:00 PM America/New_York.
fzus51 kbox 201404
cwfbox
expires:202607210300;;291422
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt mon jul 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz236-210300-
narragansett bay-
1004 am edt mon jul 20 2026
.this afternoon...w winds around 5 kt, becoming s. waves around
2 ft.
.tonight...s winds 5 to 10 kt. waves around 2 ft.
.tue...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. a chance of showers and tstms in the afternoon.
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 4 ft. showers with a chance of tstms.
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. waves 3 to
5 ft. showers likely with a chance of tstms in the morning, then
a chance of showers in the afternoon.
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt,
becoming nw 5 to 10 kt after midnight. waves 2 to 4 ft. a chance
of showers in the evening.
.thu through fri night...s winds 5 to 10 kt. waves 2 to 3 ft.
winds and waves higher in and near tstms.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
(3/4)
Latest Coastal Waters Forecast by KBOX
Issued 7/20/2026 10:04 AM America/New_York.
Valid through 7/20/2026 11:00 PM America/New_York.
fzus51 kbox 201404
cwfbox
expires:202607210300;;291420
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt mon jul 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz237-210300-
block island sound-
1004 am edt mon jul 20 2026
.this afternoon...w winds around 5 kt, becoming s. seas 2 to
3 ft. wave detail: s 3 ft at 8 seconds and w 1 foot at 5 seconds.
.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 8 seconds and sw 1 foot at 3 seconds.
.tue...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 6 seconds and sw 1 foot at
3 seconds. showers likely with a chance of tstms in the
afternoon.
.tue night...s winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft, building to 4 to 6 ft after midnight. wave detail: s
4 ft at 6 seconds, becoming sw 6 ft at 6 seconds and e 1 foot at
10 seconds. showers with a chance of tstms.
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. seas 5 to
7 ft. wave detail: s 7 ft at 9 seconds and sw 2 ft at 5 seconds.
showers with a chance of tstms in the morning, then a chance of
showers in the afternoon.
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt,
becoming nw 5 to 10 kt after midnight. seas 5 to 7 ft, subsiding
to 3 to 5 ft after midnight. wave detail: s 6 ft at 9 seconds and
w 3 ft at 4 seconds, becoming s 5 ft at 9 seconds and w 1 foot at
4 seconds.
.thu through fri night...e winds 5 to 10 kt. seas 2 to 4 ft.
winds and seas higher in and near tstms.
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.
$$
(4/4)
Latest Coastal Waters Forecast by KBOX
Issued 7/20/2026 10:04 AM America/New_York.
Valid through 7/20/2026 11:00 PM America/New_York.
fzus51 kbox 201404
cwfbox
expires:202607210300;;291414
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt mon jul 20 2026
coastal waters from the merrimack river ma to watch hill ri out
to 60 nm
anz255-210300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt mon jul 20 2026
...gale watch in effect from tuesday afternoon through wednesday
evening...
.this afternoon...n winds around 5 kt, becoming s. seas 2 to
4 ft. wave detail: s 4 ft at 8 seconds and w 2 ft at 7 seconds.
.tonight...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and w 1 foot at 8 seconds.
.tue...se winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 6 seconds and se 1 foot at 12 seconds. a chance of
showers in the afternoon.
.tue night...s winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft, building to 5 to 8 ft after midnight. wave detail: sw
5 ft at 7 seconds and e 1 foot at 11 seconds, becoming s 8 ft at
8 seconds and sw 3 ft at 7 seconds. showers with a chance of
tstms.
.wed...sw winds around 25 kt with gusts up to 35 kt. seas 7 to
10 ft. wave detail: s 10 ft at 9 seconds and sw 4 ft at
4 seconds. showers. a chance of tstms in the morning.
.wed night...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 6 to 9 ft. wave detail: sw 9 ft
at 9 seconds and nw 2 ft at 5 seconds. a chance of showers.
.thu...n winds around 10 kt. seas 4 to 6 ft. a chance of showers.
.thu night...e winds 5 to 10 kt. seas 3 to 5 ft. a chance of
showers.
.fri...ne winds 5 to 10 kt. seas 2 to 4 ft. a chance of showers.
.fri night...ne winds 5 to 10 kt. seas 2 to 3 ft.
winds and seas higher in and near tstms.
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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