fzus51 kbox 210206
cwfbox
expires:202604211500;;720389

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz231-211500-
cape cod bay-
1005 pm edt mon apr 20 2026

.overnight...n winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt. seas 1 foot or less, then around 2 ft. wave
detail: n 1 foot at 4 seconds and s 1 foot at 6 seconds, becoming
n 2 ft at 4 seconds and s 1 foot at 6 seconds. a slight chance of
rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: n
2 ft at 4 seconds and se 1 foot at 7 seconds. 
.tue night...s winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: n 2 ft at 5 seconds and s
1 foot at 5 seconds, becoming s 1 foot at 2 seconds and n 1 foot
at 5 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: s 1 foot at 2 seconds and n 1 foot
at 4 seconds. a chance of showers in the morning. 
.wed night...s winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 3 seconds and ne 1 foot at 4 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 1 foot at 3 seconds and se 1 foot at 4 seconds. 
.fri through sat...ne winds 5 to 10 kt. seas around 2 ft. 
.sat night...se winds around 5 kt. seas around 2 ft. a chance of
showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720393

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz232-211500-
nantucket sound-
1005 pm edt mon apr 20 2026

.overnight...n winds 10 to 15 kt. gusts up to 20 kt. seas around
2 ft. wave detail: n 2 ft at 3 seconds and s 1 foot at 6 seconds.
a slight chance of rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: n
2 ft at 4 seconds and s 1 foot at 6 seconds. 
.tue night...s winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: nw 1 foot at 4 seconds and e
1 foot at 4 seconds, becoming sw 1 foot at 3 seconds and e 1 foot
at 5 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot
at 5 seconds. a chance of showers. 
.wed night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
se 2 ft at 4 seconds and w 1 foot at 5 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: nw 1 foot at 3 seconds and e 1 foot at 4 seconds. 
.fri through sat...ne winds 5 to 10 kt. seas around 2 ft. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720394

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz233-211500-
vineyard sound-
1005 pm edt mon apr 20 2026

.overnight...n winds 10 to 15 kt. gusts up to 20 kt. seas around
2 ft. wave detail: n 2 ft at 3 seconds and w 1 foot at 3 seconds.
a slight chance of rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming sw
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: ne 2 ft at 3 seconds and nw
2 ft at 3 seconds, becoming nw 1 foot at 2 seconds and ne 1 foot
at 3 seconds. 
.tue night...s winds 5 to 10 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: e 1 foot at 3 seconds and sw
1 foot at 4 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot at
5 seconds. a chance of showers. 
.wed night...se winds 5 to 10 kt, becoming e after midnight. seas
around 2 ft. wave detail: se 2 ft at 6 seconds and sw 1 foot at
3 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 7 seconds and nw 1 foot at 3 seconds. 
.fri and fri night...nw winds 5 to 10 kt, becoming s. seas around
2 ft, then 1 foot or less. 
.sat and sat night...e winds 5 to 10 kt. seas 1 foot or less. a
chance of showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720395

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz234-211500-
buzzards bay-
1005 pm edt mon apr 20 2026

.overnight...n winds 10 to 15 kt. gusts up to 20 kt. seas 1 foot
or less, then around 2 ft. wave detail: w 1 foot at 4 seconds and
n 1 foot at 5 seconds, becoming n 1 foot at 4 seconds and sw
1 foot at 5 seconds. a slight chance of rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming s
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: nw 2 ft at 4 seconds and ne
1 foot at 3 seconds, becoming w 1 foot at 3 seconds and ne 1 foot
at 3 seconds. 
.tue night...s winds around 10 kt. seas 1 foot or less. wave
detail: ne 1 foot at 3 seconds and sw 1 foot at 4 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot at
5 seconds. a chance of showers. 
.wed night...se winds 5 to 10 kt, becoming e after midnight. seas
around 2 ft. wave detail: se 2 ft at 6 seconds and w 1 foot at
3 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 7 seconds and e 2 ft at 9 seconds. 
.fri and fri night...n winds 5 to 10 kt, becoming s. seas 1 foot
or less. 
.sat and sat night...e winds 5 to 10 kt. seas 1 foot or less,
then around 2 ft. a chance of showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720396

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz235-211500-
rhode island sound-
1005 pm edt mon apr 20 2026

.overnight...n winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: n 2 ft at 3 seconds and nw 2 ft at
3 seconds. a slight chance of rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming sw
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: ne
2 ft at 3 seconds and nw 1 foot at 3 seconds. 
.tue night...sw winds 10 to 15 kt. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and e 1 foot at 3 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 4 seconds and se 2 ft at 4 seconds.
a chance of showers.
.wed night...se winds 5 to 10 kt, becoming e after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 6 seconds and w 1 foot at
3 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds and e 1 foot at 4 seconds. 
.fri and fri night...w winds 5 to 10 kt, becoming se. seas around
2 ft. 
.sat and sat night...e winds around 10 kt. seas around 2 ft. a
chance of showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720399

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz236-211500-
narragansett bay-
1005 pm edt mon apr 20 2026

.overnight...n winds around 10 kt. waves around 2 ft. a slight
chance of rain. 
.tue...n winds 5 to 10 kt, becoming sw in the afternoon. waves
around 2 ft in the morning, then 1 foot or less. 
.tue night...s winds around 10 kt. waves 1 foot or less. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. a chance of showers. 
.wed night...se winds 5 to 10 kt, becoming ne after midnight.
waves around 2 ft. 
.thu and thu night...nw winds 5 to 10 kt. waves around 2 ft. 
.fri and fri night...nw winds 5 to 10 kt, becoming se. waves
around 2 ft, then 1 foot or less. 
.sat and sat night...e winds 5 to 10 kt. waves 1 foot or less. a
chance of showers.  

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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720387

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz250-211500-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1005 pm edt mon apr 20 2026

.overnight...n winds 10 to 15 kt. gusts up to 20 kt. seas 2 to
4 ft. wave detail: n 3 ft at 4 seconds and e 2 ft at 8 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
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 with gusts up to 20 kt. seas
2 to 3 ft. wave detail: e 2 ft at 6 seconds and nw 1 foot at
3 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and ne 1 foot
at 5 seconds. 
.wed night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e
2 ft at 4 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and e 2 ft at 8 seconds. 
.fri through sat night...s winds 5 to 10 kt. seas 2 to 3 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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720390

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz254-211500-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1005 pm edt mon apr 20 2026

.overnight...n winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt. seas 2 to 3 ft. wave detail: n 2 ft at
5 seconds and e 2 ft at 8 seconds. a slight chance of rain. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n 3 ft
at 4 seconds and e 2 ft at 8 seconds. 
.tue night...se winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: n 2 ft at 5 seconds and e 2 ft at
8 seconds. 
.wed...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: s 2 ft
at 4 seconds and e 2 ft at 6 seconds. 
.wed night...se winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
2 ft at 4 seconds and e 2 ft at 9 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 7 seconds and w 1 foot at 4 seconds. 
.fri through sat night...e winds 5 to 10 kt. seas 2 to 3 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.

$$

fzus51 kbox 210206
cwfbox
expires:202604211500;;720391

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 pm edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz255-211500-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1005 pm edt mon apr 20 2026

.overnight...n winds around 10 kt, increasing to 15 to 20 kt.
seas 2 to 3 ft. wave detail: nw 2 ft at 5 seconds and e 2 ft at
8 seconds. a chance of rain. 
.tue...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: n 3 ft at 4 seconds and
sw 1 foot at 6 seconds. 
.tue night...s winds 5 to 10 kt. seas around 2 ft. wave detail:
nw 1 foot at 3 seconds and sw 1 foot at 5 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 4 ft. wave detail: sw 3 ft at 4 seconds and ne 1 foot
at 5 seconds. a chance of showers.
.wed night...se winds 10 to 15 kt, becoming e 5 to 10 kt after
midnight. seas 3 to 4 ft. wave detail: sw 3 ft at 5 seconds and e
2 ft at 9 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: sw 3 ft at 7 seconds and e 2 ft at 9 seconds. 
.fri through sat...ne winds 5 to 10 kt. seas 2 to 3 ft. 
.sat night...e winds around 10 kt. seas 2 to 3 ft. a chance of
showers.  

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.

$$