fzus51 kbox 040803
cwfbox
expires:202604042100;;807488

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-042100-
cape cod bay-
403 am edt sat apr 4 2026

...small craft advisory in effect until 5 am edt early this
morning...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne this afternoon. gusts
up to 20 kt. seas 2 to 3 ft. wave detail: nw 2 ft at 3 seconds
and e 2 ft at 7 seconds. patchy fog this morning with vsby 1 nm
or less. 
.tonight...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: e 2 ft at 4 seconds. patchy fog after
midnight. a chance of showers after midnight with vsby 1 to 3 nm.
.sun...s winds 15 to 20 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 3 to 5 ft. wave detail: sw
4 ft at 4 seconds and ne 2 ft at 6 seconds. patchy fog. a chance
of showers in the morning, then showers in the afternoon. vsby
1 nm or less, increasing to 1 to 3 nm in the afternoon. 
.sun night...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw 3 ft
at 4 seconds and e 2 ft at 7 seconds. patchy fog in the evening.
showers in the evening. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: nw 2 ft at 4 seconds and se 1 foot
at 8 seconds. 
.tue...w winds 5 to 10 kt. seas 1 foot or less. wave detail: nw
1 foot at 4 seconds and se 1 foot at 7 seconds. a chance of
showers. 
.tue night...nw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
showers. 
.wed and wed night...ne winds 10 to 15 kt, becoming s 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 040803
cwfbox
expires:202604042100;;807492

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-042100-
nantucket sound-
403 am edt sat apr 4 2026

...small craft advisory in effect until 5 am edt early this
morning...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne 15 to 20 kt this
afternoon. seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds and
ne 3 ft at 5 seconds. patchy fog this morning with vsby 1 nm or
less. 
.tonight...e winds around 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 5 seconds. patchy fog after
midnight with vsby 1 to 3 nm. 
.sun...s winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: sw 5 ft at 5 seconds and e 3 ft at 7 seconds.
patchy fog. showers likely in the afternoon. vsby 1 nm or less. 
.sun night...sw winds 20 to 25 kt with gusts up to 30 kt,
becoming nw 10 to 15 kt after midnight. seas 4 to 6 ft, subsiding
to 2 to 4 ft after midnight. wave detail: sw 4 ft at 5 seconds
and s 3 ft at 8 seconds, becoming w 2 ft at 4 seconds and s 2 ft
at 8 seconds. showers, mainly in the evening. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon and mon night...w winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: w 3 ft at 4 seconds and s 2 ft at 8 seconds. 
.tue and tue night...w winds 10 to 15 kt, becoming nw 15 to
20 kt. seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se
1 foot at 8 seconds. a chance of showers. 
.wed and wed night...ne winds 10 to 15 kt with gusts up to 20 kt,
becoming s 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 040803
cwfbox
expires:202604042100;;807493

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-042100-
vineyard sound-
403 am edt sat apr 4 2026

...small craft advisory in effect until 5 am edt early this
morning...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne 15 to 20 kt this
afternoon. seas 2 to 4 ft. wave detail: sw 3 ft at 6 seconds and
ne 2 ft at 4 seconds. patchy fog this morning with vsby 1 nm or
less. 
.tonight...e winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds and
sw 2 ft at 6 seconds. patchy fog after midnight with vsby 1 to
3 nm. 
.sun...s winds 20 to 25 kt, becoming sw 25 to 30 kt in the
afternoon. seas 3 to 5 ft, building to 5 to 7 ft in the
afternoon. wave detail: se 4 ft at 6 seconds, becoming s 7 ft at
7 seconds. patchy fog. a chance of showers in the morning, then
showers in the afternoon. vsby 1 nm or less. 
.sun night...sw winds 20 to 25 kt, becoming nw 10 to 15 kt after
midnight. seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight.
wave detail: sw 6 ft at 7 seconds, becoming s 4 ft at 8 seconds
and w 2 ft at 5 seconds. patchy fog in the evening. showers in
the evening with vsby 1 to 3 nm. 
.mon and mon night...w winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 8 seconds and w 2 ft at 5 seconds. 
.tue and tue night...w winds 10 to 15 kt, becoming nw 15 to
20 kt. seas 2 to 3 ft. wave detail: sw 2 ft at 7 seconds. a
chance of showers. 
.wed and wed night...ne winds 10 to 15 kt with gusts up to 20 kt,
becoming s. seas around 2 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 040803
cwfbox
expires:202604042100;;807494

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-042100-
buzzards bay-
403 am edt sat apr 4 2026

...small craft advisory in effect until 5 am edt early this
morning...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne 15 to 20 kt this
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 6 seconds and
ne 2 ft at 3 seconds. patchy fog this morning with vsby 1 nm or
less. 
.tonight...e winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 3 seconds and s
2 ft at 6 seconds. patchy fog after midnight. a chance of showers
after midnight with vsby 1 to 3 nm. 
.sun...sw winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: s 5 ft at 7 seconds. patchy fog. a chance of
showers in the morning, then showers in the afternoon. vsby 1 nm
or less. 
.sun night...sw winds 20 to 25 kt, becoming nw 10 to 15 kt after
midnight. seas 3 to 5 ft. wave detail: sw 5 ft at 7 seconds.
patchy fog in the evening. showers in the evening. 
.mon and mon night...w winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: sw 3 ft at 4 seconds and s 3 ft at 8 seconds. 
.tue and tue night...w winds 10 to 15 kt, becoming nw with gusts
up to 20 kt. seas around 2 ft. wave detail: sw 2 ft at 4 seconds
and s 2 ft at 8 seconds. a chance of showers. 
.wed and wed night...ne winds 10 to 15 kt, becoming s. seas
around 2 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 040803
cwfbox
expires:202604042100;;807495

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-042100-
rhode island sound-
403 am edt sat apr 4 2026

...small craft advisory in effect until 5 am edt early this
morning...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne 15 to 20 kt with gusts
up to 25 kt this afternoon. seas 3 to 4 ft. wave detail: s 4 ft
at 7 seconds. patchy fog this morning with vsby 1 nm or less. 
.tonight...e winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. seas 2 to 4 ft. wave detail: e 4 ft at 5 seconds and s
3 ft at 7 seconds. patchy fog after midnight with vsby 1 to 3 nm.
.sun...sw winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft, building to 6 to 9 ft in the afternoon. wave detail: se
6 ft at 6 seconds, becoming s 9 ft at 8 seconds and sw 8 ft at
7 seconds. patchy fog. a chance of showers in the morning, then
showers in the afternoon. vsby 1 nm or less. 
.sun night...sw winds 20 to 25 kt, becoming nw around 15 kt after
midnight. seas 6 to 9 ft, subsiding to 4 to 6 ft after midnight.
wave detail: s 8 ft at 8 seconds and sw 2 ft at 5 seconds,
becoming s 6 ft at 8 seconds and w 1 foot at 4 seconds. patchy
fog in the evening. showers in the evening with vsby 1 to 3 nm. 
.mon...w winds 15 to 20 kt. seas 3 to 5 ft. wave detail: s 5 ft
at 8 seconds and w 2 ft at 4 seconds. 
.mon night...w winds 15 to 20 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 4 ft. wave detail: s 4 ft at 8 seconds and w
2 ft at 4 seconds. 
.tue...w winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers. 
.tue night through wed night...s winds 15 to 20 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 040803
cwfbox
expires:202604042100;;807498

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-042100-
narragansett bay-
403 am edt sat apr 4 2026

.today...n winds 5 to 10 kt, becoming ne 10 to 15 kt with gusts
up to 20 kt this afternoon. waves 2 to 3 ft. patchy fog this
morning with vsby 1 nm or less. 
.tonight...e winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves 2 to 3 ft. patchy fog after midnight. a chance of showers
after midnight with vsby 1 to 3 nm. 
.sun...s winds 15 to 20 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 30 kt. waves 2 to 4 ft, building to 4 to
6 ft in the afternoon. patchy fog. a chance of showers in the
morning, then showers in the afternoon. vsby 1 nm or less,
increasing to 1 to 3 nm in the afternoon. 
.sun night...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. waves 3 to 5 ft, subsiding to 2 to
3 ft after midnight. patchy fog in the evening. showers in the
evening. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.tue and tue night...w winds 10 to 15 kt, becoming nw. waves
around 2 ft. a chance of showers. 
.wed and wed night...ne winds 5 to 10 kt, becoming s. waves
around 2 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 040803
cwfbox
expires:202604042100;;807486

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-042100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt sat apr 4 2026

...small craft advisory in effect until 7 am edt this morning...

.today...n winds 15 to 20 kt, becoming ne this afternoon. gusts
up to 25 kt. seas 2 to 4 ft. wave detail: ne 4 ft at 6 seconds
and nw 3 ft at 4 seconds. 
.tonight...se winds around 15 kt with gusts up to 20 kt. seas
3 to 5 ft. wave detail: e 5 ft at 7 seconds and sw 1 foot at
4 seconds. patchy fog after midnight. a chance of showers after
midnight. 
.sun...s winds 15 to 20 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: e 6 ft
at 7 seconds and s 4 ft at 5 seconds. patchy fog. a chance of
showers in the morning. showers in the afternoon. vsby 1 nm or
less. 
.sun night...w winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft, subsiding to 3 to 4 ft after midnight. wave detail: sw
4 ft at 5 seconds and se 4 ft at 7 seconds, becoming w 3 ft at
4 seconds and se 3 ft at 7 seconds. patchy fog in the evening.
showers in the evening. 
.mon and mon night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: w 3 ft at 4 seconds and se 2 ft at
8 seconds. 
.tue and tue night...w winds 5 to 10 kt, becoming nw 15 to 20 kt
with gusts up to 25 kt. seas 2 to 4 ft. wave detail: nw 4 ft at
4 seconds and se 2 ft at 8 seconds. a chance of rain and snow
showers. 
.wed and wed night...ne winds 15 to 20 kt, becoming s. seas 3 to
5 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 040803
cwfbox
expires:202604042100;;807489

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-042100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am edt sat apr 4 2026

...small craft advisory in effect until 1 pm edt this afternoon...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 10 to 15 kt, becoming ne 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: ne
5 ft at 7 seconds and w 4 ft at 6 seconds. patchy fog this
morning with vsby 1 nm or less. 
.tonight...e winds around 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: e 5 ft at 7 seconds and sw 2 ft at 6 seconds.
patchy fog after midnight with vsby 1 to 3 nm. 
.sun...s winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
7 ft, building to 6 to 9 ft in the afternoon. wave detail: se
6 ft at 7 seconds, becoming s 7 ft at 6 seconds and e 5 ft at
7 seconds. patchy fog. showers likely in the afternoon. vsby 1 nm
or less. 
.sun night...sw winds 20 to 25 kt with gusts up to 30 kt,
becoming w 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: sw 7 ft at 7 seconds, becoming s 5 ft at 8 seconds and w
2 ft at 4 seconds. showers, mainly in the evening. patchy fog in
the evening with vsby 1 to 3 nm. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 5 ft. wave detail: s 4 ft at 8 seconds and nw 3 ft at
4 seconds. 
.tue and tue night...w winds 5 to 10 kt, becoming nw 15 to 20 kt
with gusts up to 25 kt. seas 2 to 4 ft. wave detail: nw 4 ft at
5 seconds and s 3 ft at 8 seconds. a chance of showers. 
.wed and wed night...ne winds 15 to 20 kt, becoming s 5 to 10 kt.
seas 3 to 5 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 040803
cwfbox
expires:202604042100;;807490

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat apr 4 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-042100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt sat apr 4 2026

...small craft advisory in effect until 1 pm edt this afternoon...
...gale watch in effect from sunday morning through sunday
afternoon...

.today...nw winds 15 to 20 kt, becoming ne this afternoon. seas
4 to 6 ft, subsiding to 3 to 4 ft this afternoon. wave detail: sw
5 ft at 7 seconds and e 2 ft at 7 seconds, becoming sw 4 ft at
7 seconds and ne 3 ft at 7 seconds. patchy fog this morning with
vsby 1 nm or less. 
.tonight...e winds 15 to 20 kt. seas 3 to 4 ft. wave detail: se
4 ft at 7 seconds. patchy fog. vsby 1 to 3 nm after midnight. 
.sun...s winds 20 to 25 kt, becoming sw 25 to 30 kt in the
afternoon. seas 5 to 7 ft, building to 8 to 11 ft in the
afternoon. wave detail: se 7 ft at 7 seconds, becoming se 10 ft
at 8 seconds and sw 8 ft at 7 seconds. patchy fog. showers likely
in the afternoon. vsby 1 nm or less. 
.sun night...sw winds 20 to 25 kt with gusts up to 30 kt,
becoming nw around 15 kt with gusts up to 20 kt after midnight.
seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight. wave
detail: sw 10 ft at 8 seconds and sw 3 ft at 5 seconds, becoming
sw 7 ft at 8 seconds and w 1 foot at 4 seconds. showers, mainly
in the evening. patchy fog in the evening with vsby 1 to 3 nm. 
.mon and mon night...w winds 15 to 20 kt. seas 4 to 6 ft. wave
detail: sw 6 ft at 7 seconds. 
.tue...w winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 7 seconds and se 3 ft at 8 seconds. a chance of showers. 
.tue night...nw winds 20 to 25 kt. seas 2 to 4 ft. 
.wed...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.wed night...s 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.

$$