fzus51 kbox 230504
cwfbox
expires:202604231800;;833729

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz231-231800-
cape cod bay-
103 am edt thu apr 23 2026

.rest of tonight...s winds 5 to 10 kt. seas around 2 ft. wave
detail: s 1 foot at 2 seconds and e 1 foot at 6 seconds. patchy
fog. vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt, becoming nw in the afternoon. seas
around 2 ft. wave detail: s 1 foot at 2 seconds and e 1 foot at
7 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.thu night...n winds 5 to 10 kt. seas 1 foot or less. wave
detail: nw 1 foot at 3 seconds and e 1 foot at 7 seconds. 
.fri...n winds around 10 kt, becoming ne in the afternoon. seas
around 2 ft in the morning, then 1 foot or less. wave detail: n
1 foot at 4 seconds, becoming n 1 foot at 5 seconds. 
.fri night...se winds around 5 kt, becoming nw around 5 kt after
midnight. seas 1 foot or less. wave detail: n 1 foot at 5 seconds
and e 1 foot at 15 seconds. 
.sat and sat night...w winds 5 to 10 kt. seas around 2 ft. wave
detail: n 1 foot at 5 seconds and e 1 foot at 16 seconds. 
.sun through mon night...ne 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 230504
cwfbox
expires:202604231800;;833733

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz232-231800-
nantucket sound-
103 am edt thu apr 23 2026

.rest of tonight...se winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 5 seconds and se 1 foot at 12 seconds. patchy
fog. vsby 1 to 3 nm. 
.thu...sw winds 5 to 10 kt, becoming w in the afternoon. seas
around 2 ft. wave detail: sw 1 foot at 5 seconds and e 1 foot at
6 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
nw 1 foot at 5 seconds and e 1 foot at 8 seconds. 
.fri...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 4 seconds and e 1 foot at 7 seconds. 
.fri night...se winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: e 1 foot at 5 seconds and sw
1 foot at 6 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas around 2 ft. wave
detail: ne 1 foot at 6 seconds and w 1 foot at 6 seconds. 
.sun through mon night...ne 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 230504
cwfbox
expires:202604231800;;833734

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz233-231800-
vineyard sound-
103 am edt thu apr 23 2026

.rest of tonight...se winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and se 1 foot at 10 seconds. patchy
fog. vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: e 2 ft at 5 seconds and
sw 2 ft at 6 seconds. patchy fog in the morning with vsby 1 to
3 nm. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 5 seconds and w 2 ft at 7 seconds. 
.fri...n winds 5 to 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: nw 2 ft at 6 seconds and ne 1 foot at
4 seconds. 
.fri night...se winds 5 to 10 kt, becoming w after midnight. seas
1 foot or less. wave detail: e 1 foot at 4 seconds and s 1 foot
at 6 seconds. 
.sat and sat night...se winds 5 to 10 kt. seas 1 foot or less.
wave detail: ne 1 foot at 5 seconds and sw 1 foot at 6 seconds. 
.sun through mon night...ne winds 5 to 10 kt. 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 230504
cwfbox
expires:202604231800;;833735

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz234-231800-
buzzards bay-
103 am edt thu apr 23 2026

.rest of tonight...s winds 5 to 10 kt. seas around 2 ft. wave
detail: se 1 foot at 4 seconds and se 1 foot at 11 seconds.
patchy fog. vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: se 2 ft at 4 seconds
and w 2 ft at 5 seconds. patchy fog in the morning with vsby 1 to
3 nm. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
nw 2 ft at 6 seconds and ne 1 foot at 6 seconds. 
.fri...n winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft in the morning, then 1 foot or less. wave detail: ne
1 foot at 3 seconds and w 1 foot at 6 seconds, becoming ne 1 foot
at 3 seconds and sw 1 foot at 6 seconds. 
.fri night...se winds 5 to 10 kt, becoming w after midnight. seas
1 foot or less. wave detail: e 1 foot at 2 seconds and s 1 foot
at 6 seconds. 
.sat and sat night...se winds 5 to 10 kt. seas 1 foot or less.
wave detail: ne 1 foot at 3 seconds and sw 1 foot at 6 seconds. 
.sun through mon night...ne winds 5 to 10 kt. 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 230504
cwfbox
expires:202604231800;;833736

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz235-231800-
rhode island sound-
103 am edt thu apr 23 2026

.rest of tonight...se winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 6 seconds and se 1 foot at 10 seconds. patchy
fog. vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: se 3 ft at 6 seconds and
se 1 foot at 10 seconds. patchy fog in the morning with vsby 1 to
3 nm. 
.thu night...n winds around 10 kt. seas 2 to 3 ft. wave detail:
nw 3 ft at 7 seconds and se 2 ft at 6 seconds. 
.fri...n winds around 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: ne 2 ft at 5 seconds and sw 2 ft at
7 seconds. 
.fri night through sat night...e winds 5 to 10 kt. seas around
2 ft. wave detail: se 2 ft at 6 seconds and e 1 foot at
17 seconds. 
.sun through mon night...ne winds 5 to 10 kt. seas 2 to 3 ft.
wave detail: ne 3 ft at 4 seconds and s 2 ft at 6 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 230504
cwfbox
expires:202604231800;;833739

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz236-231800-
narragansett bay-
103 am edt thu apr 23 2026

.rest of tonight...s winds around 5 kt. waves around 2 ft. patchy
fog. vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt, becoming nw 10 to 15 kt with gusts up
to 20 kt in the afternoon. waves around 2 ft. patchy fog in the
morning with vsby 1 nm or less. 
.thu night...n winds 5 to 10 kt. waves around 2 ft.
.fri...n winds 5 to 10 kt. waves around 2 ft in the morning, then
1 foot or less. 
.fri night through sat night...se winds 5 to 10 kt. waves 1 foot
or less. 
.sun through mon night...ne winds 5 to 10 kt. 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 230504
cwfbox
expires:202604231800;;833727

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz250-231800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt thu apr 23 2026

.rest of tonight...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 4 seconds and e 2 ft at 9 seconds. patchy fog.
a slight chance of showers. vsby 1 to 3 nm. 
.thu...sw winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. wave detail: s 2 ft at 5 seconds and e 2 ft at
9 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.thu night...n winds around 10 kt. seas 2 to 3 ft. wave detail:
nw 2 ft at 4 seconds and e 2 ft at 8 seconds. 
.fri...n winds 10 to 15 kt, becoming e 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: nw 2 ft at 5 seconds and
ne 2 ft at 6 seconds. 
.fri night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: ne 2 ft at 6 seconds and s 1 foot at
6 seconds. 
.sat and sat night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: e 3 ft at 8 seconds and e 2 ft at 15 seconds. 
.sun through mon night...e 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.

$$

fzus51 kbox 230504
cwfbox
expires:202604231800;;833730

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz254-231800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 am edt thu apr 23 2026

.rest of tonight...se winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: s 3 ft at 5 seconds and e 2 ft at 9 seconds. patchy fog.
a slight chance of showers. vsby 1 to 3 nm. 
.thu...sw winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. wave detail: sw 3 ft at 6 seconds and e 2 ft at
9 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.thu night...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w
3 ft at 6 seconds and e 2 ft at 8 seconds. 
.fri...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 6 seconds and ne 2 ft at 7 seconds. 
.fri night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 6 seconds and s 2 ft at 6 seconds. 
.sat and sat night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: ne 3 ft at 8 seconds and e 3 ft at 14 seconds. 
.sun through mon...ne winds 5 to 10 kt. seas 2 to 3 ft. 
.mon night...ne winds around 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 230504
cwfbox
expires:202604231800;;833731

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu apr 23 2026

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


anz255-231800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 am edt thu apr 23 2026

.rest of tonight...se winds 10 to 15 kt. seas 3 to 4 ft. wave
detail: s 3 ft at 6 seconds and e 2 ft at 10 seconds. patchy fog.
vsby 1 to 3 nm. 
.thu...w winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 3 ft at
6 seconds and e 2 ft at 10 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.thu night...n 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...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w 2 ft at
7 seconds and e 2 ft at 7 seconds. 
.fri night...e winds around 5 kt, becoming nw after midnight.
seas around 2 ft. wave detail: s 2 ft at 6 seconds and e 1 foot
at 6 seconds. 
.sat and sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: e 3 ft at 15 seconds and ne 2 ft at 6 seconds. 
.sun through mon night...ne winds 10 to 15 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.

$$