fzus51 kbox 250505
cwfbox
expires:202605251800;;603178

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

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


anz231-251800-
cape cod bay-
105 am edt mon may 25 2026

...small craft advisory in effect until 2 am edt early this
morning...

.rest of tonight...se winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 4 seconds. patchy fog. a
chance of showers. vsby 1 nm or less. 
.mon...s winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: se 2 ft at 6 seconds and se 1 foot at
3 seconds. patchy fog. showers. vsby 1 nm or less. 
.mon night...sw winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: sw 2 ft at 3 seconds and se 2 ft
at 8 seconds. patchy fog. vsby 1 to 3 nm. 
.tue...n winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: e 2 ft at 9 seconds and ne 1 foot at
5 seconds. patchy fog in the morning. 
.tue night...sw winds around 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 3 seconds and e 1 foot at 5 seconds. 
.wed...sw winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 3 seconds and se 1 foot at 8 seconds. a chance of
showers in the afternoon. 
.wed night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft in the evening, then 1 foot or less.
.thu and thu night...n winds 5 to 10 kt. seas around 2 ft, then
1 foot or less. 
.fri and fri night...w winds 5 to 10 kt. seas 1 foot or less,
then 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 250505
cwfbox
expires:202605251800;;603182

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

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


anz232-251800-
nantucket sound-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 15 to 20 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 6 seconds and s 2 ft at 8 seconds. patchy fog.
a chance of showers with a slight chance of tstms. vsby 1 nm or
less. 
.mon...s winds 10 to 15 kt, becoming sw in the afternoon. gusts
up to 20 kt. seas 2 to 4 ft. wave detail: e 3 ft at 9 seconds and
w 2 ft at 3 seconds. patchy fog. showers likely, mainly in the
morning. vsby 1 nm or less. 
.mon night...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 6 seconds and e
2 ft at 8 seconds. patchy fog. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
2 to 3 ft. wave detail: e 2 ft at 8 seconds and e 1 foot at
4 seconds. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot at
4 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
3 seconds and se 2 ft at 7 seconds. 
.thu through fri...w winds 10 to 15 kt. seas around 2 ft. 
.fri night...w winds around 10 kt. seas around 2 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 250505
cwfbox
expires:202605251800;;603183

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

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


anz233-251800-
vineyard sound-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 10 to 15 kt. seas 3 to 5 ft. wave
detail: se 5 ft at 8 seconds and s 2 ft at 9 seconds. patchy fog.
a chance of showers with a slight chance of tstms. vsby 1 nm or
less. 
.mon...sw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: s 4 ft
at 7 seconds and w 1 foot at 2 seconds. patchy fog. showers. vsby
1 nm or less. 
.mon night...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 and sw
1 foot at 4 seconds. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 9 seconds and sw 2 ft at
7 seconds. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 3 ft at 6 seconds and sw 2 ft at
3 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw 3 ft
at 6 seconds and w 1 foot at 3 seconds. 
.thu through fri night...w winds 10 to 15 kt. seas around 2 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 250505
cwfbox
expires:202605251800;;603184

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

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


anz234-251800-
buzzards bay-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 7 seconds and e 2 ft at 3 seconds. patchy fog.
a chance of showers. vsby 1 nm or less. 
.mon...s 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: s 3 ft at
7 seconds and sw 2 ft at 2 seconds. patchy fog. showers. vsby
1 nm or less. 
.mon night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and e 1 foot at
5 seconds. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and se 2 ft at
10 seconds. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and e 1 foot at
4 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: sw
2 ft at 5 seconds and w 1 foot at 3 seconds. 
.thu through fri night...w 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 250505
cwfbox
expires:202605251800;;603185

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

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


anz235-251800-
rhode island sound-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 10 to 15 kt. seas 5 to 7 ft. wave
detail: se 7 ft at 9 seconds and ne 2 ft at 4 seconds. patchy
fog. a chance of showers with a slight chance of tstms. vsby 1 nm
or less. 
.mon...sw winds 10 to 15 kt. seas 4 to 6 ft. wave detail: se 6 ft
at 9 seconds and sw 4 ft at 10 seconds. patchy fog. a chance of
showers in the morning, then showers in the afternoon. vsby 1 nm
or less. 
.mon night...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 9 seconds and s
4 ft at 11 seconds. patchy fog. vsby 1 to 3 nm. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
2 to 4 ft. wave detail: se 4 ft at 7 seconds. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds and se 3 ft at
8 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: se 3 ft at
7 seconds and w 1 foot at 3 seconds. 
.thu through fri night...w winds 10 to 15 kt. seas 2 to 3 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 250505
cwfbox
expires:202605251800;;603188

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

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


anz236-251800-
narragansett bay-
105 am edt mon may 25 2026

.rest of tonight...se winds around 5 kt. waves 2 to 4 ft. patchy
fog. a chance of showers. vsby 1 nm or less.
.mon...s winds 5 to 10 kt, becoming sw in the afternoon. waves
2 to 4 ft. patchy fog. a chance of showers in the morning, then
showers likely in the afternoon. vsby 1 nm or less. 
.mon night...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 in the afternoon. waves
around 2 ft. 
.tue night and wed...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.wed night...w winds 5 to 10 kt, becoming n after midnight. waves
around 2 ft. 
.thu through fri night...w 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 250505
cwfbox
expires:202605251800;;603176

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

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


anz250-251800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 10 to 15 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: se 5 ft at 6 seconds. patchy fog.
showers likely. vsby 1 nm or less. 
.mon...s winds 5 to 10 kt, becoming w in the afternoon. seas 4 to
6 ft. wave detail: se 5 ft at 8 seconds and e 2 ft at 5 seconds.
patchy fog. showers. vsby 1 nm or less. 
.mon night...sw winds around 5 kt, becoming nw after midnight.
seas 3 to 5 ft. wave detail: se 5 ft at 9 seconds and s 2 ft at
7 seconds. patchy fog. vsby 1 nm or less, increasing to 1 to 3 nm
after midnight. 
.tue...nw winds around 5 kt, becoming s in the afternoon. seas
2 to 4 ft. wave detail: e 4 ft at 7 seconds. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
3 seconds. 
.wed night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: se 2 ft at 7 seconds and n 1 foot at
3 seconds. 
.thu and thu night...n winds 5 to 10 kt. seas around 2 ft. 
.fri...w winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.fri night...w winds 10 to 15 kt with gusts up to 20 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 250505
cwfbox
expires:202605251800;;603179

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

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


anz254-251800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
105 am edt mon may 25 2026

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

.rest of tonight...se winds 15 to 20 kt with gusts up to 25 kt.
seas 5 to 7 ft. wave detail: se 7 ft at 9 seconds and e 1 foot at
3 seconds. patchy fog. a chance of showers with a slight chance
of tstms. vsby 1 nm or less. 
.mon...s winds 10 to 15 kt, becoming sw in the afternoon. gusts
up to 20 kt. seas 5 to 7 ft. wave detail: se 7 ft at 9 seconds
and w 1 foot at 2 seconds. patchy fog. showers likely. vsby 1 nm
or less. 
.mon night...sw winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 4 to 6 ft. wave detail: se 6 ft at 8 seconds and s
4 ft at 10 seconds. patchy fog. vsby 1 nm or less. 
.tue...ne winds around 5 kt, becoming s in the afternoon. seas
3 to 4 ft. wave detail: se 4 ft at 8 seconds and sw 2 ft at
8 seconds. patchy fog in the morning with vsby 1 nm or less. 
.tue night and wed...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: se 3 ft at 6 seconds and w 2 ft at
3 seconds. 
.wed night...w winds 10 to 15 kt, becoming n after midnight. seas
2 to 4 ft. wave detail: s 3 ft at 7 seconds and n 1 foot at
2 seconds. 
.thu through fri...w winds 10 to 15 kt. seas 2 to 3 ft. 
.fri night...w winds 10 to 15 kt. seas 2 to 4 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 250505
cwfbox
expires:202605251800;;603180

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

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


anz255-251800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
105 am edt mon may 25 2026

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

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

$$