fzus51 kbox 042004
cwfbox
expires:202604050900;;835416

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

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


anz231-050900-
cape cod bay-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: e 3 ft at 4 seconds. patchy drizzle. isolated
showers after midnight. 
.sun...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: sw 3 ft at 4 seconds and ne 3 ft at 7 seconds.
patchy drizzle in the morning, then showers in the afternoon. 
.sun night...w winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 2 ft at 4 seconds and e 2 ft at
7 seconds. showers in the evening. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt, diminishing to
around 10 kt in the afternoon. seas 2 to 3 ft. wave detail: nw
2 ft at 4 seconds and se 1 foot at 7 seconds. 
.mon night...w winds 5 to 10 kt. seas around 2 ft. wave detail: w
1 foot at 4 seconds and se 1 foot at 8 seconds. 
.tue and tue night...nw winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: n 3 ft at 5 seconds. a chance of showers. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 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 042004
cwfbox
expires:202604050900;;835420

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

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


anz232-050900-
nantucket sound-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt. seas 2 to 3 ft. wave detail: e
3 ft at 4 seconds and sw 1 foot at 6 seconds. patchy drizzle.
isolated showers after midnight. 
.sun...s winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: sw 4 ft at 5 seconds and e 3 ft at 7 seconds.
patchy drizzle in the morning, then showers in the afternoon. 
.sun night...sw winds 15 to 20 kt, becoming nw 10 to 15 kt after
midnight. gusts up to 25 kt. seas 4 to 6 ft, subsiding to 2 to
4 ft after midnight. wave detail: sw 3 ft at 4 seconds and se
3 ft at 8 seconds, becoming w 2 ft at 3 seconds and s 2 ft at
8 seconds. showers, mainly in the evening. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas around
3 ft. wave detail: w 2 ft at 4 seconds and s 2 ft at 8 seconds. 
.mon night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: w 2 ft at 4 seconds and s 2 ft at 8 seconds. 
.tue...w 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 se 1 foot
at 8 seconds. a chance of showers.
.tue night...nw winds 15 to 20 kt. seas 2 to 3 ft. 
.wed through thu night...s winds 10 to 15 kt with gusts up to
20 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 042004
cwfbox
expires:202604050900;;835421

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

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


anz233-050900-
vineyard sound-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: e 2 ft
at 4 seconds and sw 2 ft at 6 seconds. patchy drizzle. isolated
showers after midnight. 
.sun...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. wave detail: se
3 ft at 5 seconds, becoming s 5 ft at 7 seconds. patchy drizzle
in the morning, then showers in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming nw after midnight.
gusts up to 25 kt. seas 5 to 7 ft, subsiding to 3 to 5 ft after
midnight. wave detail: s 5 ft at 8 seconds and sw 3 ft at
7 seconds, becoming sw 4 ft at 7 seconds. showers in the evening.
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 4 ft at 8 seconds and w 2 ft at 5 seconds. 
.mon night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: s 3 ft at 8 seconds and sw 2 ft at 5 seconds. 
.tue...sw winds 10 to 15 kt, becoming w 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds. a
chance of showers. 
.tue night...nw winds 15 to 20 kt. seas 2 to 3 ft. 
.wed and wed night...ne winds 10 to 15 kt with gusts up to 20 kt,
becoming s 5 to 10 kt. seas around 2 ft. 
.thu and thu night...s 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.

$$

fzus51 kbox 042004
cwfbox
expires:202604050900;;835422

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

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


anz234-050900-
buzzards bay-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 3 seconds and
sw 2 ft at 6 seconds. patchy drizzle. isolated showers after
midnight. 
.sun...sw winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: s 4 ft at 7 seconds. patchy drizzle in the
morning, then showers in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming nw after midnight.
gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw 4 ft at
7 seconds. showers in the evening. 
.mon...w winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: s 3 ft at 8 seconds and w 2 ft at 5 seconds. 
.mon night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: sw 2 ft at 5 seconds and s 2 ft at 8 seconds. 
.tue...w winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and s 2 ft at
7 seconds. a chance of showers. 
.tue night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. 
.wed and wed night...ne winds 10 to 15 kt, becoming s 5 to 10 kt.
seas around 2 ft. 
.thu and thu night...s winds 10 to 15 kt. gusts up to 20 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 042004
cwfbox
expires:202604050900;;835423

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

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


anz235-050900-
rhode island sound-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: e 4 ft at 6 seconds and s 3 ft at 6 seconds.
patchy drizzle. 
.sun...sw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft, building to 6 to 9 ft in the afternoon. wave detail: se
5 ft at 6 seconds, becoming s 7 ft at 7 seconds. patchy drizzle
in the morning, then showers in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming nw after midnight.
gusts up to 25 kt. seas 6 to 9 ft, subsiding to 4 to 6 ft after
midnight. wave detail: sw 6 ft at 7 seconds, becoming s 6 ft at
8 seconds and w 1 foot at 4 seconds. showers in the evening. 
.mon...w winds 15 to 20 kt with gusts up to 25 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 10 to 15 kt with gusts up 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, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds. a
chance of showers. 
.tue night...nw winds 15 to 20 kt. seas 2 to 3 ft. 
.wed and wed night...ne winds 15 to 20 kt, becoming s around
10 kt. seas 2 to 3 ft. 
.thu and thu night...s 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 042004
cwfbox
expires:202604050900;;835426

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

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


anz236-050900-
narragansett bay-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 10 to 15 kt. gusts up to 25 kt this evening.
waves 2 to 3 ft. patchy drizzle. isolated showers after midnight.
.sun...s winds 10 to 15 kt with gusts up to 25 kt. waves 3 to
5 ft. patchy drizzle in the morning, then showers in the
afternoon. 
.sun night...w winds around 10 kt, becoming nw after midnight.
gusts up to 20 kt. waves 2 to 4 ft. showers in the evening. 
.mon...w winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. 
.mon night...w winds 10 to 15 kt, diminishing to around 5 kt
after midnight. waves 2 to 3 ft. 
.tue...w winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. a chance of showers. 
.tue night...nw winds 10 to 15 kt. waves around 2 ft. 
.wed through thu night...sw 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 042004
cwfbox
expires:202604050900;;835414

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

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


anz250-050900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: e 5 ft at 7 seconds. patchy drizzle. isolated
showers after midnight. 
.sun...s winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: e 6 ft at 8 seconds and s 3 ft at 5 seconds.
showers in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming w 15 to 20 kt after
midnight. gusts up to 25 kt. seas 4 to 6 ft, subsiding to 3 to
4 ft after midnight. wave detail: e 5 ft at 8 seconds and sw 3 ft
at 4 seconds, becoming w 3 ft at 4 seconds and e 3 ft at
8 seconds. showers in the evening. 
.mon...w winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 4 ft
at 4 seconds and se 2 ft at 8 seconds. 
.mon night...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w
2 ft at 4 seconds and se 2 ft at 8 seconds. 
.tue...nw winds around 10 kt, becoming ne with gusts up to 20 kt
in the afternoon. seas 2 to 3 ft. wave detail: ne 3 ft at
8 seconds and nw 2 ft at 3 seconds. a chance of rain and snow
showers. 
.tue night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of rain in the evening. 
.wed and wed night...n winds 15 to 20 kt, becoming s. seas 3 to
5 ft. 
.thu and thu night...s 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.

$$

fzus51 kbox 042004
cwfbox
expires:202604050900;;835417

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

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


anz254-050900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: e 5 ft at 7 seconds and sw 2 ft at 6 seconds.
patchy drizzle. 
.sun...s winds 15 to 20 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 30 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 6 ft at 6 seconds and e 5 ft at 7 seconds. patchy
drizzle in the morning, then showers in the afternoon. 
.sun night...sw winds 15 to 20 kt, becoming w after midnight.
gusts up to 30 kt. seas 5 to 8 ft, subsiding to 4 to 6 ft after
midnight. wave detail: sw 6 ft at 7 seconds, becoming s 5 ft at
8 seconds and w 2 ft at 4 seconds. showers, mainly in the
evening. 
.mon...w winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: s 4 ft
at 8 seconds and nw 3 ft at 4 seconds. 
.mon night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 3 to 5 ft. wave
detail: s 4 ft at 8 seconds and w 2 ft at 5 seconds. 
.tue and tue night...n winds 20 to 25 kt. seas 2 to 4 ft. wave
detail: nw 4 ft at 4 seconds and s 3 ft at 8 seconds. a chance of
showers. 
.wed and wed night...n winds 15 to 20 kt, becoming s 5 to 10 kt.
seas 3 to 5 ft. 
.thu and thu night...s winds 10 to 15 kt with gusts up to 20 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.

$$

fzus51 kbox 042004
cwfbox
expires:202604050900;;835418

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

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


anz255-050900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 pm edt sat apr 4 2026

...small craft advisory in effect through sunday evening...

.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: e 4 ft at 5 seconds and s 3 ft at 7 seconds.
patchy drizzle. 
.sun...s winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft, building to 8 to 11 ft in the afternoon. wave detail: se
5 ft at 7 seconds, becoming e 8 ft at 7 seconds and sw 7 ft at
7 seconds. patchy drizzle in the morning, then showers in the
afternoon. 
.sun night...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 30 kt. seas 7 to 10 ft, subsiding to 5 to
8 ft after midnight. wave detail: sw 8 ft at 7 seconds, becoming
s 6 ft at 8 seconds and w 1 foot at 4 seconds. showers, mainly in
the evening. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 8 seconds and nw 2 ft at 4 seconds.
.mon night...w winds 15 to 20 kt, diminishing to 5 to 10 kt after
midnight. seas 4 to 6 ft, subsiding to 3 to 4 ft after midnight.
wave detail: s 6 ft at 8 seconds and sw 5 ft at 7 seconds,
becoming sw 4 ft at 7 seconds and s 4 ft at 8 seconds. 
.tue...sw winds 10 to 15 kt, becoming w 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds and
se 2 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...se winds 5 to 10 kt. seas 2 to 4 ft. 
.thu and thu night...s winds 10 to 15 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.

$$