fzus51 kbox 291704
cwfbox
expires:202604300600;;735739

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz231-300600-
cape cod bay-
104 pm edt wed apr 29 2026

.this afternoon...n winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: ne 2 ft at 11 seconds and n 1 foot at 3 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
2 to 3 ft. wave detail: ne 2 ft at 11 seconds and n 1 foot at
3 seconds. patchy fog. a chance of showers after midnight. vsby
1 nm or less. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne 2 ft
at 7 seconds and se 1 foot at 2 seconds. patchy fog. showers.
vsby 1 to 3 nm, decreasing to 1 nm or less in the afternoon. 
.thu night...w winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 3 ft. wave detail: nw
2 ft at 3 seconds and e 1 foot at 6 seconds. patchy fog in the
evening. showers likely in the evening. 
.fri and fri night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: nw 2 ft at 3 seconds and se 2 ft at
5 seconds. 
.sat through sun night...sw winds 5 to 10 kt. seas around 2 ft.
wave detail: s 2 ft at 5 seconds and w 1 foot at 3 seconds.  

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 291704
cwfbox
expires:202604300600;;735743

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz232-300600-
nantucket sound-
104 pm edt wed apr 29 2026

.this afternoon...ne winds around 10 kt. seas 3 to 5 ft. wave
detail: e 3 ft at 5 seconds and e 3 ft at 11 seconds. patchy fog.
a slight chance of showers. vsby 1 nm or less. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
2 to 4 ft. wave detail: e 3 ft at 5 seconds and e 2 ft at
10 seconds. patchy fog. a chance of showers after midnight. vsby
1 nm or less, increasing to 1 to 3 nm after midnight. 
.thu...se winds around 10 kt, becoming s in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 5 seconds and se 2 ft at
11 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 4 ft. wave detail: w 2 ft at 3 seconds and e
2 ft at 5 seconds. patchy fog in the evening. showers likely in
the evening. 
.fri and fri night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: w 2 ft at 3 seconds and se 2 ft at
5 seconds. 
.sat...sw winds around 10 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 5 seconds and e 2 ft at 9 seconds. 
.sat night...w winds 5 to 10 kt. seas 2 to 3 ft. a chance of
showers. 
.sun and sun night...w 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 291704
cwfbox
expires:202604300600;;735744

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz233-300600-
vineyard sound-
104 pm edt wed apr 29 2026

.this afternoon...ne winds around 10 kt. seas 2 to 3 ft. wave
detail: nw 1 foot at 3 seconds and ne 1 foot at 4 seconds. patchy
fog. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
2 to 3 ft. wave detail: n 1 foot at 3 seconds and s 1 foot at
11 seconds. patchy fog. showers likely after midnight. vsby 1 to
3 nm. 
.thu...se winds around 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: nw 1 foot at 3 seconds and se 1 foot at
4 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and
se 1 foot at 5 seconds. a chance of showers in the evening. 
.fri and fri night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: sw 3 ft at 5 seconds and s 1 foot at
10 seconds. 
.sat through sun night...w winds 15 to 20 kt. seas 2 to 3 ft.
wave detail: sw 3 ft at 5 seconds and s 2 ft at 9 seconds.  

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 291704
cwfbox
expires:202604300600;;735745

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz234-300600-
buzzards bay-
104 pm edt wed apr 29 2026

.this afternoon...ne winds around 10 kt. seas around 2 ft. wave
detail: n 1 foot at 3 seconds and se 1 foot at 11 seconds. patchy
fog. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
around 2 ft. wave detail: n 1 foot at 2 seconds and se 1 foot at
11 seconds. patchy fog. showers likely after midnight. vsby 1 to
3 nm. 
.thu...se winds around 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 2 seconds and se 1 foot at
2 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: w 2 ft at 4 seconds and
se 1 foot at 5 seconds. a chance of showers in the evening. 
.fri and fri night...w 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 1 foot
at 10 seconds. 
.sat through sun night...w winds 15 to 20 kt. seas 2 to 3 ft.
wave detail: sw 2 ft at 4 seconds and se 1 foot at 10 seconds.  

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 291704
cwfbox
expires:202604300600;;735746

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz235-300600-
rhode island sound-
104 pm edt wed apr 29 2026

.this afternoon...e winds around 10 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 11 seconds and n 2 ft at 3 seconds. 
.tonight...se winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 10 seconds and e 2 ft at 7 seconds. patchy fog. showers
likely after midnight. vsby 1 to 3 nm. 
.thu...se winds around 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: se 4 ft at 10 seconds and w 2 ft at
5 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 3 to 4 ft. wave detail: se 4 ft at 10 seconds and
w 3 ft at 4 seconds. a chance of showers in the evening. 
.fri and fri night...w winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: sw 3 ft at 5 seconds and se 3 ft at 10 seconds. 
.sat through sun night...w winds 15 to 20 kt. seas 2 to 4 ft.
wave detail: s 4 ft at 9 seconds and sw 3 ft at 5 seconds.  

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 291704
cwfbox
expires:202604300600;;735749

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz236-300600-
narragansett bay-
104 pm edt wed apr 29 2026

.this afternoon...se winds 5 to 10 kt. waves around 2 ft. 
.tonight...se winds 5 to 10 kt. waves around 2 ft. patchy fog.
showers likely after midnight. vsby 1 to 3 nm. 
.thu...se winds around 5 kt, becoming w in the afternoon. waves
around 2 ft. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...nw winds 10 to 15 kt. waves around 2 ft. a chance of
showers in the evening. 
.fri and fri night...w winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.sat through sun night...w winds 10 to 15 kt with gusts up to
20 kt. waves 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 291704
cwfbox
expires:202604300600;;735737

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz250-300600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt wed apr 29 2026

...small craft advisory in effect through friday morning...

.this afternoon...ne winds 5 to 10 kt. seas 5 to 7 ft. wave
detail: e 7 ft at 10 seconds and e 1 foot at 2 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.tonight...e winds 5 to 10 kt, becoming se 10 to 15 kt with gusts
up to 20 kt after midnight. seas 5 to 7 ft. wave detail: e 7 ft
at 10 seconds and nw 1 foot at 2 seconds. patchy fog. a chance of
showers. vsby 1 nm or less. 
.thu...se winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 5 to 7 ft. wave detail: e
7 ft at 10 seconds and s 1 foot at 3 seconds. patchy fog.
showers. vsby 1 to 3 nm, decreasing to 1 nm or less in the
afternoon. 
.thu night...w winds 5 to 10 kt, increasing to around 15 kt with
gusts up to 20 kt after midnight. seas 4 to 6 ft. wave detail: e
6 ft at 10 seconds and w 2 ft at 3 seconds. patchy fog in the
evening. showers likely in the evening with vsby 1 to 3 nm. 
.fri...w winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 4 to 6 ft. wave detail: e 5 ft at 10 seconds and w 3 ft at
4 seconds. 
.fri night...w winds 10 to 15 kt. seas 3 to 5 ft. wave detail: e
4 ft at 9 seconds and w 2 ft at 4 seconds. 
.sat through sun night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 3 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.

$$

fzus51 kbox 291704
cwfbox
expires:202604300600;;735740

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz254-300600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt wed apr 29 2026

...small craft advisory in effect through friday morning...

.this afternoon...ne winds around 10 kt. seas 5 to 8 ft. wave
detail: e 8 ft at 10 seconds and ne 4 ft at 6 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.tonight...se winds 10 to 15 kt. seas 5 to 7 ft. wave detail: e
7 ft at 10 seconds and e 3 ft at 5 seconds. patchy fog. a chance
of showers. vsby 1 nm or less. 
.thu...s winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 5 to 7 ft. wave detail: e 7 ft at 10 seconds and se 3 ft at
5 seconds. patchy fog. showers. vsby 1 nm or less. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and e
3 ft at 5 seconds. patchy fog in the evening. showers likely in
the evening with vsby 1 to 3 nm.
.fri...w winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: e 5 ft at 10 seconds and sw 2 ft at 5 seconds.
.fri night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: e 5 ft at 9 seconds and sw
2 ft at 4 seconds. 
.sat...sw winds around 10 kt. seas 3 to 4 ft. 
.sat night and sun...sw winds 5 to 10 kt, becoming w 10 to 15 kt
with gusts up to 20 kt. seas 3 to 4 ft. a chance of showers. 
.sun night...sw winds 10 to 15 kt with gusts up to 20 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 291704
cwfbox
expires:202604300600;;735741

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed apr 29 2026

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


anz255-300600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt wed apr 29 2026

...small craft advisory in effect through friday morning...

.this afternoon...ne winds around 10 kt. seas 5 to 7 ft. wave
detail: e 7 ft at 10 seconds and ne 4 ft at 4 seconds. patchy
fog. a slight chance of showers. vsby 1 nm or less. 
.tonight...e winds around 10 kt, becoming se after midnight. seas
4 to 6 ft. wave detail: e 6 ft at 10 seconds and e 5 ft at
6 seconds. patchy fog. a chance of showers after midnight. vsby
1 nm or less. 
.thu...se winds around 10 kt, becoming sw in the afternoon. seas
4 to 6 ft. wave detail: se 6 ft at 11 seconds and se 5 ft at
6 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm in the afternoon. 
.thu night...w winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 4 to 6 ft. wave detail: se 5 ft at 10 seconds and
w 4 ft at 5 seconds. patchy fog in the evening. a chance of
showers in the evening. 
.fri and fri night...w winds 15 to 20 kt. seas 4 to 6 ft. wave
detail: sw 6 ft at 6 seconds and se 4 ft at 10 seconds. 
.sat...sw winds around 10 kt. seas 3 to 4 ft. wave detail: w 3 ft
at 5 seconds and e 3 ft at 10 seconds. 
.sat night and sun...w winds 5 to 10 kt, increasing to 15 to
20 kt with gusts up to 25 kt. seas 3 to 4 ft. a chance of
showers. 
.sun night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 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.

$$