fzus51 kbox 300805
cwfbox
expires:202605302100;;883755

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz231-302100-
cape cod bay-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...n winds 20 to 25 kt with gusts up to 40 kt, becoming ne
25 to 30 kt with gusts up to 50 kt this afternoon. seas 2 to
4 ft, building to 5 to 7 ft this afternoon. wave detail: nw 3 ft
at 4 seconds and ne 1 foot at 5 seconds, becoming n 7 ft at
6 seconds and ne 7 ft at 9 seconds. patchy fog. a slight chance
of showers this morning. showers this afternoon. vsby 1 to 3 nm. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 10 to 15 kt with gusts up to 25 kt after midnight.
seas 5 to 7 ft. wave detail: ne 7 ft at 9 seconds and nw 6 ft at
10 seconds. a chance of showers in the evening. 
.sun...nw winds 5 to 10 kt, becoming ne in the afternoon. seas
2 to 4 ft. wave detail: n 4 ft at 7 seconds and e 2 ft at
15 seconds. 
.sun night...s winds around 5 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: e 3 ft at 15 seconds and ne 2 ft at
8 seconds. a chance of showers. 
.mon...ne winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 9 seconds and sw 1 foot at 2 seconds. a chance of showers in
the morning. 
.mon night...ne winds 5 to 10 kt, diminishing to around 5 kt
after midnight. seas around 2 ft. wave detail: se 2 ft at
12 seconds and n 1 foot at 3 seconds. 
.tue through wed night...n winds 10 to 15 kt with gusts up to
25 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 300805
cwfbox
expires:202605302100;;883759

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz232-302100-
nantucket sound-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...nw winds 10 to 15 kt with gusts up to 25 kt, becoming n
30 to 35 kt with gusts up to 45 kt this afternoon. seas 2 to
3 ft, building to 3 to 5 ft this afternoon. wave detail: w 2 ft
at 4 seconds and e 1 foot at 4 seconds, becoming n 4 ft at
5 seconds and s 1 foot at 7 seconds. a chance of showers this
morning, then showers this afternoon. patchy fog this afternoon
with vsby 1 to 3 nm. 
.tonight...n winds 25 to 30 kt with gusts up to 45 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
seas 4 to 6 ft. wave detail: n 5 ft at 6 seconds and e 3 ft at
10 seconds. a chance of showers in the evening. 
.sun...nw winds 10 to 15 kt, becoming w 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: e 3 ft at 5 seconds and e
2 ft at 10 seconds. 
.sun night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 3 seconds and e 2 ft at 5 seconds. a chance of showers. 
.mon...n winds 5 to 10 kt, becoming ne in the afternoon. seas
2 to 3 ft. wave detail: e 2 ft at 9 seconds and e 1 foot at
5 seconds. a chance of showers. 
.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 and tue night...ne winds 5 to 10 kt, increasing to 10 to
15 kt. seas around 2 ft. 
.wed and wed night...n winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. a chance of showers.  

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 300805
cwfbox
expires:202605302100;;883760

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz233-302100-
vineyard sound-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...nw winds 15 to 20 kt with gusts up to 30 kt, becoming n
30 to 35 kt with gusts up to 50 kt this afternoon. seas 2 to
4 ft, building to 4 to 6 ft this afternoon. wave detail: sw 4 ft
at 7 seconds and ne 1 foot at 4 seconds, becoming n 4 ft at
5 seconds and s 3 ft at 7 seconds. a chance of showers this
morning, then showers likely this afternoon. patchy fog this
afternoon with vsby 1 to 3 nm. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 10 to 15 kt with gusts up to 25 kt after midnight.
seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. wave
detail: n 4 ft at 5 seconds and ne 2 ft at 10 seconds, becoming n
2 ft at 4 seconds and e 2 ft at 11 seconds. a chance of showers
in the evening. 
.sun...nw winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: sw 2 ft
at 3 seconds and ne 1 foot at 4 seconds. 
.sun night...sw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e
1 foot at 5 seconds. a chance of showers. 
.mon...n winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 5 seconds and e 1 foot at
5 seconds. a chance of showers. 
.mon night...ne winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 6 seconds and e 1 foot at 3 seconds. 
.tue and tue night...ne winds 5 to 10 kt, becoming e 10 to 15 kt.
seas around 2 ft. 
.wed and wed night...n winds 15 to 20 kt with gusts up to 25 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 300805
cwfbox
expires:202605302100;;883761

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz234-302100-
buzzards bay-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...nw winds 10 to 15 kt with gusts up to 30 kt, becoming n
25 to 35 kt with gusts up to 50 kt this afternoon. seas 2 to
3 ft, building to 4 to 6 ft this afternoon. wave detail: n 3 ft
at 5 seconds and s 2 ft at 7 seconds, becoming n 5 ft at
6 seconds and s 2 ft at 7 seconds. a chance of showers this
morning, then showers likely this afternoon. patchy fog this
afternoon with vsby 1 to 3 nm. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 10 to 15 kt with gusts up to 25 kt after midnight.
seas 3 to 5 ft, subsiding to 2 ft after midnight. wave detail: nw
5 ft at 8 seconds and ne 4 ft at 4 seconds, becoming ne 2 ft at
4 seconds and se 2 ft at 12 seconds. a chance of showers in the
evening. 
.sun...nw winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 1 foot or less, then around 2 ft
in the afternoon. wave detail: n 1 foot at 3 seconds and se
1 foot at 7 seconds, becoming sw 2 ft at 3 seconds and ne 1 foot
at 5 seconds. 
.sun night...sw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 4 seconds and
e 1 foot at 5 seconds. a chance of showers. 
.mon...n winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 10 seconds and e 1 foot at
4 seconds. a chance of showers. 
.mon night...ne winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: s 2 ft at 13 seconds
and e 1 foot at 2 seconds, becoming ne 1 foot at 2 seconds and sw
1 foot at 5 seconds. 
.tue and tue night...e winds 5 to 10 kt. seas around 2 ft. 
.wed and wed night...ne winds 15 to 20 kt, becoming n 10 to
15 kt. gusts up to 25 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 300805
cwfbox
expires:202605302100;;883762

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz235-302100-
rhode island sound-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...nw winds 20 to 25 kt with gusts up to 40 kt, becoming n
25 to 35 kt with gusts up to 50 kt this afternoon. seas 4 to
6 ft. wave detail: n 6 ft at 5 seconds and sw 4 ft at 7 seconds.
a slight chance of showers this morning, then showers likely this
afternoon. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 10 to 15 kt with gusts up to 25 kt after midnight.
seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. wave
detail: n 5 ft at 5 seconds and s 1 foot at 7 seconds, becoming
ne 3 ft at 5 seconds and nw 2 ft at 4 seconds. 
.sun...nw winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 2 ft at 11 seconds. 
.sun night...sw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and
se 2 ft at 10 seconds. a chance of showers after midnight. 
.mon...n winds 5 to 10 kt, becoming ne 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds and
se 2 ft at 11 seconds. a chance of showers. 
.mon night...ne winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds
and s 2 ft at 9 seconds. 
.tue through wed night...n winds 15 to 20 kt with gusts up to
25 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 300805
cwfbox
expires:202605302100;;883765

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz236-302100-
narragansett bay-
405 am edt sat may 30 2026

...gale warning in effect through this evening...

.today...nw winds 20 to 25 kt, becoming n 25 to 30 kt this
afternoon. gusts up to 45 kt. waves 2 to 3 ft. a slight chance of
showers this morning, then showers likely this afternoon. patchy
fog this afternoon with vsby 1 to 3 nm. 
.tonight...n winds 20 to 25 kt with gusts up to 35 kt, becoming
nw 5 to 10 kt with gusts up to 20 kt after midnight. waves 2 to
3 ft. 
.sun...nw winds 5 to 10 kt, becoming w in the afternoon. waves
1 foot or less, then around 2 ft in the afternoon. 
.sun night...sw winds 5 to 10 kt, becoming w after midnight.
waves around 2 ft. a chance of showers. 
.mon...n winds 5 to 10 kt, becoming ne in the afternoon. waves
around 2 ft. showers likely, mainly in the morning. 
.mon night...ne winds 5 to 10 kt. waves around 2 ft. 
.tue through wed night...n 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 300805
cwfbox
expires:202605302100;;883753

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz250-302100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...ne winds 30 to 35 kt, becoming 25 to 35 kt this
afternoon. gusts up to 50 kt. seas 7 to 10 ft, building to 9 to
13 ft this afternoon. wave detail: ne 10 ft at 9 seconds and se
9 ft at 7 seconds, becoming ne 13 ft at 8 seconds and nw 5 ft at
10 seconds. patchy fog. a chance of showers with a slight chance
of tstms this morning. showers this afternoon. vsby 1 to 3 nm. 
.tonight...ne winds 20 to 25 kt with gusts up to 40 kt, becoming
n 10 to 15 kt with gusts up to 25 kt after midnight. seas 8 to
11 ft, subsiding to 5 to 8 ft after midnight. wave detail: ne
11 ft at 9 seconds and ne 6 ft at 3 seconds, becoming e 8 ft at
9 seconds and n 2 ft at 5 seconds. a chance of showers in the
evening. 
.sun...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
4 to 6 ft. wave detail: e 6 ft at 9 seconds and n 3 ft at
6 seconds. a chance of showers in the afternoon. 
.sun night...s winds around 5 kt, becoming w after midnight. seas
3 to 4 ft. wave detail: e 4 ft at 9 seconds and e 2 ft at
6 seconds. a chance of showers. 
.mon...ne winds 5 to 10 kt. seas around 3 ft. wave detail: ne
3 ft at 3 seconds and s 3 ft at 8 seconds. a chance of showers in
the morning. 
.mon night...e winds around 5 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: ne 3 ft at 4 seconds and e 3 ft at
8 seconds. 
.tue and tue night...se winds 5 to 10 kt. seas 2 to 3 ft. 
.wed...ne winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. 
.wed night...n winds 10 to 15 kt with gusts up to 20 kt. seas
4 to 6 ft.  

winds and seas higher in and near tstms.

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 300805
cwfbox
expires:202605302100;;883756

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz254-302100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...n winds 15 to 20 kt with gusts up to 30 kt, becoming ne
25 to 30 kt with gusts up to 45 kt this afternoon. seas 4 to
6 ft, building to 7 to 10 ft this afternoon. wave detail: w 3 ft
at 4 seconds and s 3 ft at 7 seconds, becoming ne 10 ft at
10 seconds and n 8 ft at 6 seconds. patchy fog. a chance of
showers with a slight chance of tstms this morning. showers this
afternoon. vsby 1 to 3 nm. 
.tonight...n winds 25 to 30 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 9 to 12 ft, subsiding to 7 to 10 ft after midnight. wave
detail: ne 12 ft at 8 seconds and nw 7 ft at 5 seconds, becoming
ne 10 ft at 9 seconds and n 4 ft at 6 seconds. patchy fog in the
evening. a chance of showers in the evening with vsby 1 to 3 nm. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 5 to 8 ft, subsiding to 4 to
6 ft in the afternoon. wave detail: ne 8 ft at 9 seconds and e
4 ft at 5 seconds, becoming e 6 ft at 10 seconds and se 4 ft at
7 seconds. 
.sun night...sw winds 5 to 10 kt. seas 3 to 5 ft. wave detail: e
5 ft at 9 seconds and e 2 ft at 5 seconds. a chance of showers. 
.mon...ne winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds and ne 2 ft at 5 seconds. a chance of showers in the
morning. 
.mon night...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
3 ft at 8 seconds and ne 1 foot at 4 seconds. 
.tue and tue night...ne winds 5 to 10 kt, becoming e 10 to 15 kt.
seas 2 to 4 ft. 
.wed...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. a chance of showers. 
.wed night...n winds 15 to 20 kt. seas 5 to 7 ft. a chance of
showers.  

winds and seas higher in and near tstms.

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 300805
cwfbox
expires:202605302100;;883757

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sat may 30 2026

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


anz255-302100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt sat may 30 2026

...storm warning in effect through this evening...

.today...nw winds 15 to 20 kt with gusts up to 30 kt, becoming n
35 to 40 kt with gusts up to 45 kt this afternoon. seas 5 to
7 ft. wave detail: n 6 ft at 5 seconds and w 6 ft at 7 seconds. a
slight chance of showers this morning, then showers likely this
afternoon. patchy fog this afternoon with vsby 1 to 3 nm. 
.tonight...n winds 25 to 35 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 6 to 9 ft. wave detail: n 7 ft at 7 seconds and e 7 ft at
10 seconds. a chance of showers in the evening. 
.sun...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w in
the afternoon. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds
and nw 3 ft at 4 seconds. 
.sun night...sw winds 10 to 15 kt. seas 3 to 5 ft. wave detail: e
5 ft at 10 seconds and w 3 ft at 4 seconds. a chance of showers. 
.mon...nw winds 5 to 10 kt, becoming ne 10 to 15 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 3 ft at 6 seconds and
e 3 ft at 9 seconds. a chance of showers in the morning. 
.mon night...ne winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. seas 2 to 4 ft. wave detail: e 3 ft at 9 seconds
and sw 2 ft at 6 seconds. 
.tue and tue night...ne winds 5 to 10 kt, increasing to 10 to
15 kt. seas 2 to 4 ft. 
.wed...ne winds 20 to 25 kt. seas 3 to 5 ft. a chance of showers.
.wed night...n winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. a chance of showers.  

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.

$$