fzus51 kbox 250804
cwfbox
expires:202605252100;;612315

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz231-252100-
cape cod bay-
404 am edt mon may 25 2026

.today...s winds 5 to 10 kt, becoming sw this afternoon. seas
around 2 ft. wave detail: se 1 foot at 3 seconds. patchy fog.
showers. vsby 1 nm or less. 
.tonight...sw winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: sw 1 foot at 2 seconds and e 1 foot at
5 seconds. patchy fog. vsby 1 to 3 nm. 
.tue...n winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: sw 1 foot at 2 seconds and e 1 foot at
6 seconds. patchy fog in the morning. 
.tue night...sw winds around 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 6 seconds. 
.wed...sw winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 2 seconds and se 1 foot at 7 seconds. a chance of
showers in the afternoon. 
.wed night...w winds 5 to 10 kt, becoming n after midnight. seas
1 foot or less, then around 2 ft after midnight. wave detail: w
1 foot at 2 seconds and se 1 foot at 6 seconds, becoming nw
1 foot at 3 seconds and e 1 foot at 8 seconds. a chance of
showers in the evening. 
.thu through fri...ne winds 5 to 10 kt. seas around 2 ft. 
.fri night...sw winds 5 to 10 kt. seas around 2 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 250804
cwfbox
expires:202605252100;;612319

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz232-252100-
nantucket sound-
404 am edt mon may 25 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...s winds 10 to 15 kt, becoming sw this afternoon. gusts
up to 20 kt. seas 2 to 4 ft. wave detail: se 3 ft at 7 seconds.
patchy fog. showers likely, mainly this morning. vsby 1 nm or
less. 
.tonight...w winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 2 to 4 ft. wave detail: sw 2 ft at 4 seconds and e
2 ft at 8 seconds. patchy fog. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.tue...n winds around 5 kt, becoming s in the afternoon. seas
2 to 3 ft. wave detail: e 2 ft at 7 seconds and sw 1 foot at
7 seconds. 
.tue night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail:
sw 2 ft at 4 seconds and e 1 foot at 7 seconds. 
.wed...sw 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 7 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n after midnight. seas 2 to 3 ft. wave detail: w 2 ft at
4 seconds and se 1 foot at 7 seconds. a chance of showers in the
evening. 
.thu through fri...n winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.fri night...sw winds 10 to 15 kt. seas around 2 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 250804
cwfbox
expires:202605252100;;612320

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz233-252100-
vineyard sound-
404 am edt mon may 25 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...sw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: s
3 ft at 7 seconds. patchy fog. showers. vsby 1 nm or less. 
.tonight...sw winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds.
patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: s 2 ft at 7 seconds. 
.tue night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds. 
.wed...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n after midnight. seas 2 to 3 ft. wave detail: sw 3 ft at
6 seconds and se 1 foot at 7 seconds. a chance of showers in the
evening. 
.thu through fri...w winds 10 to 15 kt. seas around 2 ft. 
.fri night...sw winds 10 to 15 kt. seas around 2 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 250804
cwfbox
expires:202605252100;;612321

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz234-252100-
buzzards bay-
404 am edt mon may 25 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...s winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts
up to 20 kt this afternoon. seas 2 to 3 ft. wave detail: s 2 ft
at 7 seconds. patchy fog. showers. vsby 1 nm or less. 
.tonight...sw winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: sw 2 ft at 4 seconds and se 2 ft at
7 seconds. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: s 2 ft at 6 seconds. 
.tue night...sw winds 10 to 15 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and se 1 foot at 8 seconds. 
.wed...sw 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 s 1 foot at
7 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n 5 to 10 kt after midnight. seas around 2 ft. wave detail: s
2 ft at 6 seconds. 
.thu through fri...w winds 10 to 15 kt. seas around 2 ft. 
.fri night...sw winds 10 to 15 kt. seas around 2 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 250804
cwfbox
expires:202605252100;;612322

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz235-252100-
rhode island sound-
404 am edt mon may 25 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...sw winds 10 to 15 kt. seas 4 to 6 ft. wave detail: se
6 ft at 9 seconds and sw 3 ft at 7 seconds. patchy fog. a chance
of showers this morning, then showers this afternoon. vsby 1 nm
or less. 
.tonight...sw winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 3 to 5 ft. wave detail: se 5 ft at 8 seconds and
sw 3 ft at 11 seconds. patchy fog. vsby 1 to 3 nm. 
.tue...n winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas 2 to 4 ft. wave detail: se 4 ft at 8 seconds and
s 2 ft at 7 seconds. 
.tue night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail:
sw 3 ft at 7 seconds and se 3 ft at 8 seconds. 
.wed...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw after midnight. seas 2 to 3 ft. wave detail: s 3 ft at
7 seconds. a chance of showers in the evening. 
.thu and thu night...n winds 10 to 15 kt, diminishing to 5 to
10 kt. seas 2 to 3 ft. a chance of showers. 
.fri...w winds 10 to 15 kt. seas around 2 ft. 
.fri night...sw winds 10 to 15 kt. seas 2 to 3 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 250804
cwfbox
expires:202605252100;;612325

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz236-252100-
narragansett bay-
404 am edt mon may 25 2026

.today...s winds 5 to 10 kt, becoming sw this afternoon. waves
2 to 4 ft. patchy fog. a chance of showers this morning, then
showers likely this afternoon. vsby 1 nm or less. 
.tonight...sw winds 5 to 10 kt, becoming nw after midnight. waves
2 to 3 ft. patchy fog. vsby 1 to 3 nm. 
.tue...n winds around 5 kt, becoming s 10 to 15 kt in the
afternoon. waves around 2 ft. 
.tue night...sw winds around 10 kt. waves around 2 ft. 
.wed...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves around 2 ft. 
.wed night...w winds 5 to 10 kt, becoming nw after midnight.
waves around 2 ft. 
.thu and thu night...n winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.fri...w winds 5 to 10 kt. waves around 2 ft. 
.fri night...sw winds around 10 kt. waves around 2 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 250804
cwfbox
expires:202605252100;;612313

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz250-252100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am edt mon may 25 2026

...small craft advisory in effect through late tonight...

.today...s winds 5 to 10 kt, becoming w this afternoon. seas 4 to
6 ft. wave detail: se 6 ft at 8 seconds and s 1 foot at
4 seconds. patchy fog. showers. vsby 1 nm or less. 
.tonight...sw winds around 5 kt, becoming nw after midnight. seas
3 to 5 ft. wave detail: se 5 ft at 8 seconds and sw 1 foot at
4 seconds. patchy fog. vsby 1 nm or less, increasing to 1 to 3 nm
after midnight. 
.tue...nw winds around 5 kt, becoming s 10 to 15 kt in the
afternoon. seas 2 to 4 ft. wave detail: se 4 ft at 8 seconds. 
.tue night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: se 3 ft at 8 seconds and s 2 ft at
3 seconds. 
.wed...sw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and
se 2 ft at 7 seconds. 
.wed night...nw winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: nw 2 ft at 3 seconds and se 2 ft at
7 seconds. 
.thu through fri...ne winds 5 to 10 kt. seas around 2 ft. 
.fri night...sw winds 10 to 15 kt. seas around 2 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 250804
cwfbox
expires:202605252100;;612316

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz254-252100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 am edt mon may 25 2026

...small craft advisory in effect through late tonight...

.today...s winds 10 to 15 kt, becoming sw this afternoon. gusts
up to 20 kt. seas 5 to 7 ft. wave detail: se 7 ft at 8 seconds
and s 1 foot at 8 seconds. patchy fog. showers likely. a slight
chance of tstms this morning. vsby 1 nm or less. 
.tonight...sw winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 4 to 6 ft. wave detail: se 5 ft at 8 seconds and
sw 1 foot at 5 seconds. patchy fog. vsby 1 nm or less. 
.tue...n winds around 5 kt, becoming sw in the afternoon. seas
3 to 4 ft. wave detail: s 4 ft at 7 seconds. patchy fog. vsby
1 nm or less. 
.tue night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 4 ft. wave detail: sw 3 ft at 5 seconds and se 3 ft at
8 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: sw 3 ft at 6 seconds and se 3 ft at 7 seconds.
.wed night...w winds 10 to 15 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: w 3 ft at 6 seconds and se 2 ft at
7 seconds. a chance of showers in the evening. 
.thu through fri...n winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.fri night...sw winds 10 to 15 kt. seas 2 to 3 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 250804
cwfbox
expires:202605252100;;612317

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt mon may 25 2026

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


anz255-252100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 am edt mon may 25 2026

...small craft advisory in effect through late tonight...

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

$$