fzus51 kbox 310805
cwfbox
expires:202605312100;;939067

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz231-312100-
cape cod bay-
405 am edt sun may 31 2026

...small craft advisory in effect until 11 am edt this morning...

.today...nw winds 10 to 15 kt, becoming sw 5 to 10 kt this
afternoon. seas 2 to 4 ft. wave detail: n 4 ft at 7 seconds and
se 1 foot at 10 seconds. showers likely this afternoon. 
.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 7 seconds and sw 1 foot at 3 seconds. a chance of
showers. 
.mon...ne winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: n 1 foot at 3 seconds and se 1 foot at
9 seconds. 
.mon night...ne winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: n 1 foot at 4 seconds and se
1 foot at 8 seconds. 
.tue...sw winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: e 2 ft at 12 seconds and ne 1 foot at
4 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 1 foot at 2 seconds and e 1 foot at 3 seconds. 
.wed through thu night...sw 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 310805
cwfbox
expires:202605312100;;939071

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz232-312100-
nantucket sound-
405 am edt sun may 31 2026

...small craft advisory in effect until 11 am edt this morning...

.today...nw winds 10 to 15 kt, becoming sw this afternoon. gusts
up to 20 kt. seas 3 to 5 ft. wave detail: e 3 ft at 5 seconds and
e 3 ft at 10 seconds. a chance of showers this afternoon. 
.tonight...sw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 4 ft. wave detail: sw 2 ft at 3 seconds and e
2 ft at 5 seconds. a chance of showers. 
.mon...n winds 10 to 15 kt, becoming ne with gusts up to 20 kt in
the afternoon. seas 2 to 3 ft. wave detail: e 2 ft at 5 seconds
and e 2 ft at 9 seconds. 
.mon night...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 4 seconds and e 2 ft at 9 seconds. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: se 2 ft at 9 seconds and se 2 ft at
12 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 1 foot at 3 seconds and e 1 foot at 5 seconds. 
.wed through thu night...sw 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 310805
cwfbox
expires:202605312100;;939072

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz233-312100-
vineyard sound-
405 am edt sun may 31 2026

.today...nw winds 10 to 15 kt, becoming sw with gusts up to 20 kt
this afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds
and e 2 ft at 9 seconds. a chance of showers this afternoon. 
.tonight...sw winds 10 to 15 kt with gusts up to 20 kt, becoming
w 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds and e 2 ft at 10 seconds. a chance of showers. 
.mon...n winds 5 to 10 kt, becoming ne 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: w 2 ft
at 5 seconds and ne 1 foot at 5 seconds. 
.mon night...ne winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 1 foot at 3 seconds and sw 1 foot at 5 seconds. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 5 seconds and e 1 foot at
9 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 2 ft at 4 seconds and s 1 foot at 8 seconds. 
.wed through thu night...sw winds 10 to 15 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 310805
cwfbox
expires:202605312100;;939073

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz234-312100-
buzzards bay-
405 am edt sun may 31 2026

.today...nw winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts
up to 20 kt this afternoon. seas around 2 ft. wave detail: sw
2 ft at 3 seconds and e 2 ft at 9 seconds. a chance of showers
this afternoon. 
.tonight...w winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas around 2 ft. wave detail: s 2 ft at 5 seconds and e 2 ft at
9 seconds. a chance of showers. 
.mon...n winds 10 to 15 kt, becoming ne with gusts up to 20 kt in
the afternoon. seas around 2 ft. wave detail: e 2 ft at
10 seconds and w 1 foot at 5 seconds. 
.mon night...ne winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: ne 1 foot at 3 seconds
and sw 1 foot at 5 seconds. 
.tue...n winds around 5 kt, becoming s in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
ne 1 foot at 4 seconds and sw 1 foot at 5 seconds, becoming se
1 foot at 5 seconds and se 1 foot at 10 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: sw 1 foot at 3 seconds
and se 1 foot at 4 seconds, becoming se 1 foot at 3 seconds and
sw 1 foot at 3 seconds. 
.wed through thu night...sw winds 10 to 15 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 310805
cwfbox
expires:202605312100;;939074

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz235-312100-
rhode island sound-
405 am edt sun may 31 2026

.today...nw winds 10 to 15 kt, becoming sw with gusts up to 20 kt
this afternoon. seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds
and se 3 ft at 10 seconds. a chance of showers this afternoon. 
.tonight...w winds 10 to 15 kt. gusts up to 20 kt in the evening.
seas 2 to 4 ft. wave detail: se 4 ft at 11 seconds and sw 3 ft at
4 seconds. a chance of showers. 
.mon...n winds around 10 kt, becoming ne with gusts up to 20 kt
in the afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at
3 seconds and sw 2 ft at 5 seconds. 
.mon night...ne winds 10 to 15 kt, diminishing to around 5 kt
after midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds
and sw 2 ft at 5 seconds. 
.tue...ne winds 5 to 10 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 4 seconds and e 2 ft at
10 seconds. 
.tue night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: s 2 ft at 3 seconds and se 2 ft at
10 seconds. 
.wed through thu night...sw 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 310805
cwfbox
expires:202605312100;;939077

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz236-312100-
narragansett bay-
405 am edt sun may 31 2026

.today...nw winds 5 to 10 kt, becoming sw with gusts up to 20 kt
this afternoon. waves around 2 ft. a chance of showers this
afternoon. 
.tonight...w winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.mon...n winds 5 to 10 kt, becoming ne in the afternoon. waves
around 2 ft. 
.mon night...e winds 5 to 10 kt, becoming n after midnight. waves
around 2 ft. 
.tue...nw winds around 5 kt, becoming s in the afternoon. waves
1 foot or less, then around 2 ft in the afternoon. 
.tue night...sw winds 5 to 10 kt, becoming w after midnight.
waves around 2 ft. 
.wed through thu night...sw winds 10 to 15 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 310805
cwfbox
expires:202605312100;;939065

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz250-312100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 am edt sun may 31 2026

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

.today...nw winds 5 to 10 kt, becoming sw this afternoon. seas
4 to 6 ft. wave detail: e 5 ft at 9 seconds and n 3 ft at
6 seconds. a chance of showers this afternoon. 
.tonight...sw winds 5 to 10 kt, becoming nw after midnight. seas
3 to 5 ft. wave detail: e 5 ft at 9 seconds and ne 2 ft at
6 seconds. a chance of showers.
.mon...ne winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds and ne 3 ft at 4 seconds. 
.mon night...se winds around 5 kt, becoming w around 5 kt after
midnight. seas 3 to 4 ft. wave detail: e 4 ft at 9 seconds and ne
2 ft at 6 seconds. 
.tue...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 10 seconds and ne 2 ft at 4 seconds. 
.tue night...s winds around 10 kt, becoming w after midnight.
seas 2 to 3 ft. wave detail: e 2 ft at 9 seconds and se 1 foot at
4 seconds. 
.wed through thu night...sw 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 310805
cwfbox
expires:202605312100;;939068

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz254-312100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 am edt sun may 31 2026

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

.today...nw winds 15 to 20 kt with gusts up to 25 kt, becoming sw
10 to 15 kt this afternoon. seas 5 to 8 ft. wave detail: ne 8 ft
at 9 seconds and n 4 ft at 5 seconds. a chance of showers this
afternoon. 
.tonight...w winds 5 to 10 kt. seas 4 to 6 ft. wave detail: e
6 ft at 9 seconds and ne 2 ft at 6 seconds. a chance of showers. 
.mon...n winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds and e 3 ft at 5 seconds. 
.mon night...ne winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 9 seconds and ne 2 ft at 3 seconds. 
.tue...e winds around 5 kt, becoming s in the afternoon. seas
3 to 4 ft. wave detail: e 4 ft at 9 seconds and ne 2 ft at
5 seconds. 
.tue night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
3 ft at 10 seconds and sw 1 foot at 4 seconds. 
.wed through thu...s winds 5 to 10 kt. seas 2 to 4 ft. 
.thu night...sw 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 310805
cwfbox
expires:202605312100;;939069

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun may 31 2026

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


anz255-312100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt sun may 31 2026

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

.today...nw winds 10 to 15 kt, becoming w this afternoon. gusts
up to 25 kt. seas 5 to 7 ft. wave detail: e 7 ft at 10 seconds
and n 4 ft at 5 seconds. 
.tonight...sw winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 4 to 6 ft. wave detail: e 5 ft at 10 seconds and w
3 ft at 4 seconds. a chance of showers. 
.mon...nw winds 10 to 15 kt, becoming ne with gusts up to 20 kt
in the afternoon. seas 3 to 4 ft. wave detail: e 4 ft at
9 seconds and ne 2 ft at 4 seconds. 
.mon night...ne winds 10 to 15 kt, diminishing to around 5 kt
after midnight. seas 2 to 4 ft. wave detail: e 4 ft at 10 seconds
and ne 3 ft at 4 seconds. 
.tue...ne winds around 5 kt, becoming se in the afternoon. seas
2 to 4 ft. wave detail: e 3 ft at 9 seconds and e 2 ft at
5 seconds. 
.tue night...s winds 5 to 10 kt, becoming sw after midnight. seas
2 to 3 ft. wave detail: e 3 ft at 10 seconds and se 2 ft at
13 seconds. 
.wed through thu night...sw 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.

$$