(1/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011728
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz231-220100-
cape cod bay-
705 am est sat feb 21 2026
...storm watch in effect from monday morning through monday
evening...
.today...n winds 10 to 15 kt. gusts up to 20 kt this morning.
seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and s 2 ft at
7 seconds. a chance of snow showers this morning.
.tonight...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: n
3 ft at 5 seconds and s 1 foot at 8 seconds.
.sun...ne winds 5 to 10 kt, becoming e 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft at
5 seconds and e 2 ft at 8 seconds.
.sun night...e winds 25 to 30 kt, becoming ne 30 to 40 kt with
gusts up to 45 kt after midnight. seas 3 to 5 ft, building to
5 to 7 ft after midnight. wave detail: ne 4 ft at 4 seconds and e
2 ft at 9 seconds, becoming ne 7 ft at 5 seconds and e 7 ft at
8 seconds. snow.
.mon...ne winds 40 to 50 kt with gusts up to 55 kt. seas 7 to
10 ft, building to 9 to 13 ft in the afternoon. wave detail: n
10 ft at 5 seconds and e 10 ft at 10 seconds, becoming ne 13 ft
at 10 seconds and n 10 ft at 6 seconds. snow.
.mon night...n winds 40 to 50 kt, becoming nw 25 to 35 kt after
midnight. seas 9 to 13 ft, subsiding to 8 to 11 ft after
midnight. wave detail: ne 13 ft at 11 seconds and n 9 ft at
7 seconds, becoming ne 11 ft at 11 seconds and n 10 ft at
7 seconds. snow, mainly in the evening. a chance of light
freezing spray after midnight.
.tue...nw winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. a chance of light freezing spray.
.tue night...w winds 10 to 15 kt. seas 2 to 4 ft.
.wed...sw winds 10 to 15 kt. seas around 2 ft. a chance of snow
and rain.
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. a chance of rain.
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.
$$
(2/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011732
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz232-220100-
nantucket sound-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
evening...
.today...n winds around 10 kt. seas 2 to 3 ft. wave detail: e
2 ft at 6 seconds and n 1 foot at 3 seconds. a chance of snow
showers this morning.
.tonight...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 7 seconds and nw 1 foot at 4 seconds.
.sun...ne winds 5 to 10 kt, becoming e 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: e 2 ft at 8 seconds and w
1 foot at 6 seconds.
.sun night...e winds 25 to 30 kt with gusts up to 35 kt, becoming
ne 35 to 45 kt with gusts up to 50 kt after midnight. seas 3 to
5 ft, building to 5 to 7 ft after midnight. wave detail: e 5 ft
at 5 seconds and s 1 foot at 7 seconds, becoming e 7 ft at
7 seconds. snow. rain after midnight.
.mon...ne winds 40 to 45 kt with gusts up to 55 kt. seas 7 to
10 ft. wave detail: e 10 ft at 9 seconds and ne 9 ft at
6 seconds. snow. rain in the morning.
.mon night...n winds 35 to 45 kt with gusts up to 50 kt, becoming
nw 25 to 30 kt with gusts up to 35 kt after midnight. seas 7 to
10 ft, subsiding to 5 to 7 ft after midnight. wave detail: n 6 ft
at 6 seconds and e 5 ft at 11 seconds, becoming n 6 ft at
6 seconds and e 4 ft at 12 seconds. snow likely, mainly in the
evening. a chance of light freezing spray after midnight.
.tue...nw winds 15 to 20 kt. seas 4 to 6 ft. a chance of light
freezing spray.
.tue night...w winds 10 to 15 kt. seas 2 to 4 ft.
.wed...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of rain.
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. a chance of rain.
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.
$$
(3/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011733
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz233-220100-
vineyard sound-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
evening...
.today...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 7 seconds and nw 1 foot at 3 seconds. a chance of snow showers
this morning.
.tonight...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 8 seconds and ne 1 foot at 5 seconds.
.sun...ne winds 10 to 15 kt, becoming e 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 3 seconds and
sw 2 ft at 8 seconds. a chance of snow in the afternoon.
.sun night...ne winds 25 to 30 kt with gusts up to 35 kt,
increasing to 35 to 45 kt with gusts up to 50 kt after midnight.
seas 4 to 6 ft. wave detail: ne 6 ft at 5 seconds and e 6 ft at
8 seconds. snow.
.mon...n winds 35 to 45 kt with gusts up to 55 kt. seas 5 to
7 ft, building to 6 to 9 ft in the afternoon. wave detail: e 7 ft
at 9 seconds and ne 6 ft at 5 seconds, becoming e 7 ft at
11 seconds and n 6 ft at 6 seconds. snow.
.mon night...nw winds 35 to 45 kt, diminishing to 25 to 30 kt
after midnight. seas 5 to 8 ft, subsiding to 3 to 5 ft after
midnight. wave detail: n 5 ft at 6 seconds and e 5 ft at
11 seconds, becoming n 4 ft at 5 seconds and e 3 ft at
11 seconds. snow likely, mainly in the evening. a chance of light
freezing spray after midnight.
.tue...nw winds 15 to 20 kt. seas 2 to 4 ft. a chance of light
freezing spray.
.tue night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft.
.wed...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of rain and
snow.
.wed night...sw winds 15 to 20 kt. seas 3 to 5 ft. a chance of
rain.
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.
$$
(4/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011734
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz234-220100-
buzzards bay-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
evening...
.today...n winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 7 seconds and n 1 foot at 4 seconds. a chance of snow
showers this morning.
.tonight...ne winds 5 to 10 kt. seas around 2 ft. wave detail: sw
2 ft at 8 seconds and w 1 foot at 4 seconds.
.sun...ne winds 5 to 10 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 3 seconds and
sw 1 foot at 5 seconds. a chance of snow in the afternoon.
.sun night...ne winds 25 to 30 kt with gusts up to 35 kt,
increasing to 30 to 40 kt with gusts up to 45 kt after midnight.
seas 4 to 6 ft. wave detail: ne 6 ft at 5 seconds and e 6 ft at
8 seconds. snow likely in the evening, then snow after midnight.
.mon...n winds 35 to 45 kt with gusts up to 50 kt. seas 5 to
7 ft. wave detail: n 7 ft at 6 seconds and e 7 ft at 10 seconds.
snow.
.mon night...nw winds 30 to 40 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 4 to 6 ft, subsiding to 3 ft after midnight. wave detail: e
6 ft at 11 seconds and n 5 ft at 5 seconds, becoming n 3 ft at
5 seconds and e 3 ft at 11 seconds. snow likely, mainly in the
evening. a chance of light freezing spray after midnight.
.tue and tue night...nw winds 15 to 20 kt, becoming w 10 to
15 kt. seas 2 to 3 ft.
.wed...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of snow and
rain.
.wed night...sw winds 15 to 20 kt. seas 2 to 4 ft. a chance of
rain.
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.
$$
(5/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011735
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz235-220100-
rhode island sound-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
afternoon...
.today...n winds around 10 kt, becoming ne this afternoon. seas
3 to 4 ft. wave detail: se 4 ft at 7 seconds and n 2 ft at
5 seconds. a chance of snow showers this morning.
.tonight...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and e 2 ft at 6 seconds.
.sun...ne winds 10 to 15 kt, becoming e 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: e 3 ft at
4 seconds and s 2 ft at 8 seconds. a chance of snow in the
afternoon.
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt,
increasing to 35 to 45 kt with gusts up to 50 kt after midnight.
seas 4 to 6 ft, building to 5 to 8 ft after midnight. wave
detail: e 6 ft at 5 seconds and s 1 foot at 7 seconds, becoming e
8 ft at 7 seconds and se 4 ft at 8 seconds. snow likely in the
evening, then snow after midnight.
.mon...n winds 35 to 45 kt with gusts up to 55 kt. seas 8 to
11 ft. wave detail: n 9 ft at 6 seconds and e 9 ft at 10 seconds.
snow.
.mon night...nw winds 30 to 40 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 7 to 10 ft, subsiding to 4 to 6 ft after midnight. wave
detail: n 7 ft at 6 seconds and s 7 ft at 12 seconds, becoming nw
6 ft at 5 seconds and s 4 ft at 11 seconds. snow likely in the
evening. a chance of light freezing spray after midnight.
.tue...nw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. a chance of light freezing spray.
.tue night...w winds 15 to 20 kt. seas 2 to 4 ft.
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of rain and snow.
.wed night...sw winds 15 to 20 kt. seas 4 to 6 ft. a chance of
rain.
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.
$$
(6/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011738
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz236-220100-
narragansett bay-
705 am est sat feb 21 2026
...storm watch in effect from monday morning through monday
afternoon...
.today...n winds 5 to 10 kt. waves 2 to 3 ft. a chance of snow
showers this morning.
.tonight...ne winds around 5 kt. waves around 2 ft.
.sun...ne winds 5 to 10 kt, becoming e 15 to 20 kt in the
afternoon. waves 2 to 3 ft. a chance of snow in the afternoon.
.sun night...ne winds 20 to 25 kt with gusts up to 35 kt,
increasing to 25 to 35 kt with gusts up to 45 kt after midnight.
waves 2 to 3 ft. at the bay entrance, waves 3 to 4 ft, building
to 4 to 6 ft after midnight. snow likely in the evening, then
snow after midnight.
.mon...n winds 30 to 40 kt with gusts up to 50 kt. waves around
3 ft, except 5 to 7 ft at the bay entrance. snow.
.mon night...nw winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
waves 2 to 3 ft. at the bay entrance, waves 5 to 7 ft, subsiding
to 3 to 4 ft after midnight. snow likely in the evening.
.tue and tue night...w winds 10 to 15 kt. gusts up to 20 kt.
waves 2 to 3 ft.
.wed...sw winds 10 to 15 kt. waves around 2 ft. a chance of snow
and rain.
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 4 ft. a chance of rain.
seas are reported as significant wave height, which is the
average of the highest third of the waves. individual wave
heights may be more than twice the significant wave height.
$$
(7/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011726
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz250-220100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
705 am est sat feb 21 2026
...storm watch in effect from monday morning through monday
evening...
.today...n winds 15 to 20 kt with gusts up to 25 kt, diminishing
to 10 to 15 kt this afternoon. seas 4 to 6 ft. wave detail: ne
6 ft at 7 seconds and se 2 ft at 7 seconds. a chance of snow
showers this morning.
.tonight...ne winds around 10 kt. seas 4 to 5 ft. wave detail: e
5 ft at 7 seconds.
.sun...ne winds 10 to 15 kt, becoming e 15 to 20 kt in the
afternoon. seas 3 to 4 ft. wave detail: ne 3 ft at 8 seconds and
se 1 foot at 9 seconds.
.sun night...e winds 25 to 30 kt, becoming ne 30 to 40 kt with
gusts up to 45 kt after midnight. seas 5 to 7 ft, building to
9 to 12 ft after midnight. wave detail: ne 7 ft at 6 seconds and
e 1 foot at 9 seconds, becoming e 12 ft at 8 seconds. a chance of
snow in the evening, then snow likely after midnight.
.mon...ne winds 40 to 45 kt with gusts up to 60 kt. seas 14 to
19 ft, building to 17 to 22 ft in the afternoon. wave detail: e
19 ft at 10 seconds and ne 5 ft at 7 seconds, becoming ne 22 ft
at 11 seconds and n 3 ft at 6 seconds. snow.
.mon night...n winds 35 to 45 kt with gusts up to 55 kt, becoming
nw 25 to 35 kt with gusts up to 40 kt after midnight. seas 17 to
22 ft, subsiding to 12 to 17 ft after midnight. wave detail: ne
22 ft at 11 seconds and n 6 ft at 8 seconds, becoming ne 17 ft at
11 seconds and n 8 ft at 8 seconds. snow, mainly in the evening.
.tue...nw winds 20 to 25 kt. seas 7 to 10 ft.
.tue night...w winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft.
.wed and wed night...sw winds 10 to 15 kt, increasing to 15 to
20 kt. seas 2 to 4 ft. a chance of rain and snow.
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.
$$
(8/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011729
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz254-220100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
evening...
.today...n winds 10 to 15 kt. gusts up to 20 kt this morning.
seas 4 to 5 ft. wave detail: se 5 ft at 7 seconds and nw 1 foot
at 3 seconds. a chance of snow and rain showers this morning.
.tonight...n winds 5 to 10 kt. seas 4 to 5 ft. wave detail: ne
5 ft at 8 seconds and s 2 ft at 8 seconds.
.sun...ne winds 5 to 10 kt, becoming e 15 to 20 kt in the
afternoon. seas 3 to 5 ft. wave detail: ne 4 ft at 8 seconds and
s 2 ft at 8 seconds.
.sun night...e winds 25 to 30 kt with gusts up to 35 kt, becoming
ne 35 to 45 kt with gusts up to 50 kt after midnight. seas 5 to
7 ft, building to 9 to 13 ft after midnight. wave detail: ne 7 ft
at 6 seconds and e 2 ft at 9 seconds, becoming e 13 ft at
8 seconds. rain. a chance of snow in the evening, then snow
likely after midnight.
.mon...ne winds 40 to 50 kt with gusts up to 55 kt. seas 14 to
19 ft, building to 17 to 22 ft in the afternoon. wave detail: e
19 ft at 11 seconds and ne 4 ft at 6 seconds, becoming ne 22 ft
at 11 seconds and s 5 ft at 12 seconds. rain and snow.
.mon night...nw winds 35 to 45 kt. gusts up to 55 kt in the
evening. seas 16 to 21 ft, subsiding to 13 to 18 ft after
midnight. wave detail: ne 21 ft at 11 seconds and s 8 ft at
14 seconds, becoming ne 18 ft at 11 seconds and nw 6 ft at
7 seconds. snow likely, mainly in the evening.
.tue...nw winds 20 to 25 kt. seas 8 to 11 ft.
.tue night...w winds 10 to 15 kt with gusts up to 20 kt. seas
4 to 6 ft.
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. a chance of rain.
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. a chance of rain.
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.
$$
(9/9)
Latest Coastal Waters Forecast by KBOX
Issued 2/21/2026 7:06 AM America/New_York.
Valid through 2/21/2026 8:00 PM America/New_York.
fzus51 kbox 211206
cwfbox
expires:202602220100;;011730
coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 am est sat feb 21 2026
coastal waters from the merrimack river ma to watch hill ri out
to 25 nm
anz255-220100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
705 am est sat feb 21 2026
...storm watch in effect from late sunday night through monday
evening...
.today...n winds 10 to 15 kt. gusts up to 20 kt this morning.
seas 3 to 5 ft. wave detail: se 4 ft at 7 seconds and nw 2 ft at
3 seconds. a slight chance of snow showers this morning.
.tonight...ne winds 5 to 10 kt. seas 3 to 4 ft. wave detail: ne
3 ft at 7 seconds and sw 3 ft at 8 seconds.
.sun...ne winds 10 to 15 kt, becoming e 20 to 25 kt in the
afternoon. seas 3 to 5 ft. wave detail: e 4 ft at 4 seconds and e
3 ft at 8 seconds.
.sun night...e winds 25 to 35 kt with gusts up to 40 kt, becoming
ne 35 to 45 kt with gusts up to 55 kt after midnight. seas 5 to
7 ft, building to 9 to 12 ft after midnight. wave detail: e 7 ft
at 6 seconds and e 2 ft at 9 seconds, becoming e 12 ft at
8 seconds. rain and snow.
.mon...ne winds 45 to 50 kt with gusts up to 55 kt. seas 12 to
16 ft, building to 13 to 18 ft in the afternoon. s and e of
nantucket, seas 15 to 20 ft, building to 18 to 23 ft in the
afternoon. wave detail: e 16 ft at 10 seconds and ne 7 ft at
7 seconds, becoming e 17 ft at 11 seconds and s 10 ft at
12 seconds. rain and snow.
.mon night...nw winds 40 to 50 kt with gusts up to 55 kt,
diminishing to 25 to 35 kt with gusts up to 40 kt after midnight.
seas 12 to 16 ft, subsiding to 9 to 12 ft after midnight. s and e
of nantucket, seas 16 to 21 ft, subsiding to 12 to 17 ft after
midnight. wave detail: n 11 ft at 7 seconds and e 11 ft at
11 seconds, becoming nw 11 ft at 7 seconds and e 8 ft at
11 seconds. snow likely, mainly in the evening. a chance of light
freezing spray after midnight.
.tue...nw winds 20 to 25 kt. seas 6 to 9 ft. a chance of light
freezing spray.
.tue night...w winds 15 to 20 kt. seas 4 to 6 ft.
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. a chance of rain.
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. a chance of rain.
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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