fzus51 kbox 131704
cwfbox
expires:202605140600;;497537

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz231-140600-
cape cod bay-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: s 2 ft at 3 seconds and ne 1 foot
at 4 seconds. 
.tonight...s winds 10 to 15 kt with gusts up to 20 kt. seas
around 3 ft. wave detail: s 2 ft at 3 seconds and e 2 ft at
7 seconds. 
.thu...e winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: e 3 ft at 6 seconds and se 2 ft at 3 seconds.
patchy fog. showers. vsby 1 to 3 nm in the afternoon. 
.thu night...e winds 5 to 10 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: se 2 ft at 5 seconds and
e 1 foot at 11 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 10 seconds and s 2 ft at 10 seconds. showers likely. patchy
fog in the morning with vsby 1 to 3 nm. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: s 2 ft at 10 seconds and e 2 ft at
12 seconds. a chance of showers in the evening. 
.sat and sat night...sw winds 10 to 15 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.sun and sun night...w 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 131704
cwfbox
expires:202605140600;;497541

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz232-140600-
nantucket sound-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: s 3 ft at 4 seconds and e 1 foot
at 7 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas
around 3 ft. wave detail: s 3 ft at 4 seconds and e 2 ft at
7 seconds. 
.thu...e winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: s 2 ft at 6 seconds and se 1 foot at
11 seconds. patchy fog. showers. vsby 1 to 3 nm in the afternoon.
.thu night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: e 2 ft at 4 seconds and s
2 ft at 7 seconds. patchy fog. showers likely. vsby 1 to 3 nm. 
.fri...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 5 seconds and e 2 ft at 10 seconds. showers likely, mainly in
the morning. patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: ne 2 ft at 5 seconds and e 2 ft at
10 seconds. 
.sat through sun night...w 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 131704
cwfbox
expires:202605140600;;497542

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz233-140600-
vineyard sound-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: sw 4 ft at 5 seconds and ne 1 foot
at 7 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas
around 3 ft. wave detail: sw 3 ft at 6 seconds and s 3 ft at
10 seconds. 
.thu...se winds 15 to 20 kt, becoming e 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds and
se 1 foot at 11 seconds. patchy fog. showers. a chance of tstms
in the afternoon with vsby 1 to 3 nm. 
.thu night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 6 seconds and s 2 ft at 9 seconds. patchy fog. showers
likely in the evening. a chance of showers after midnight. vsby
1 to 3 nm. 
.fri...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 10 seconds and se 3 ft at 10 seconds. showers likely. patchy
fog in the morning with vsby 1 to 3 nm. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: e 2 ft at 10 seconds and s 2 ft at
10 seconds. 
.sat and sat night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.sun and sun night...w winds 10 to 15 kt. gusts up to 20 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 131704
cwfbox
expires:202605140600;;497543

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz234-140600-
buzzards bay-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds around 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 3 ft at 5 seconds and ne 1 foot at
8 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 3 ft at 5 seconds and se 3 ft at 11 seconds.
.thu...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 3 ft at 6 seconds and se 1 foot at
11 seconds. patchy fog. showers. a chance of tstms in the
afternoon with vsby 1 to 3 nm. 
.thu night...e winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 7 seconds and e 1 foot at 3 seconds. patchy fog. showers
likely in the evening. a chance of showers after midnight. vsby
1 to 3 nm. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 11 seconds and ne 1 foot at 2 seconds. showers likely.
patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: e 2 ft at 11 seconds and ne 1 foot at
3 seconds. 
.sat and sat night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.sun and sun night...w winds 10 to 15 kt. gusts up to 20 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 131704
cwfbox
expires:202605140600;;497544

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz235-140600-
rhode island sound-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds around 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: se 4 ft at 7 seconds and se 1 foot
at 10 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: sw 4 ft at 6 seconds and se 4 ft at 7 seconds.
.thu...se winds 15 to 20 kt, becoming e 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas around 3 ft. wave detail: s
3 ft at 6 seconds and se 1 foot at 10 seconds. patchy fog. a
chance of showers in the morning. showers in the afternoon. vsby
1 to 3 nm. 
.thu night...e winds 5 to 10 kt. seas around 3 ft. wave detail:
se 3 ft at 9 seconds and sw 2 ft at 8 seconds. patchy fog.
showers likely in the evening with vsby 1 to 3 nm. 
.fri...ne winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 4 ft
at 9 seconds and e 4 ft at 10 seconds. showers likely. patchy fog
in the morning. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 4 ft. wave detail: se 4 ft at 10 seconds and s 4 ft at
10 seconds. 
.sat through sun night...sw 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 131704
cwfbox
expires:202605140600;;497547

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz236-140600-
narragansett bay-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 30 kt.
waves around 3 ft. 
.tonight...s winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 25 kt. waves 2 to 4 ft.
.thu...se winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. waves 2 to 3 ft. patchy fog. a
chance of showers in the morning. showers in the afternoon. vsby
1 to 3 nm. 
.thu night...ne winds 5 to 10 kt. waves 2 to 3 ft. patchy fog.
showers likely, mainly in the evening with vsby 1 to 3 nm. 
.fri...n winds 5 to 10 kt. waves 2 to 3 ft. showers likely.
patchy fog in the morning. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. waves
2 to 3 ft. 
.sat through sun night...w 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 131704
cwfbox
expires:202605140600;;497535

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz250-140600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 4 ft at 4 seconds and e 2 ft at
7 seconds. a slight chance of showers. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 4 ft at 6 seconds and e 1 foot at
11 seconds. 
.thu...se winds around 15 kt with gusts up to 25 kt. seas around
3 ft. wave detail: s 3 ft at 5 seconds and e 1 foot at
11 seconds. a chance of showers in the morning, then showers in
the afternoon. patchy fog in the afternoon with vsby 1 to 3 nm. 
.thu night...e winds 10 to 15 kt with gusts up to 25 kt. seas
3 to 4 ft. wave detail: e 4 ft at 10 seconds and s 1 foot at
4 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.fri...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 4 ft. wave detail: s 4 ft at 9 seconds and e 4 ft at
11 seconds. showers. patchy fog in the morning with vsby 1 to
3 nm. 
.fri night...n winds 5 to 10 kt, becoming w after midnight. seas
3 to 4 ft. wave detail: se 4 ft at 10 seconds and e 4 ft at
10 seconds. a chance of showers in the evening. 
.sat through sun night...nw 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 131704
cwfbox
expires:202605140600;;497538

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz254-140600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: s 3 ft at 4 seconds and e 2 ft at
7 seconds. 
.tonight...s winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. seas 3 to 4 ft. wave detail: se 3 ft at 6 seconds and
ne 1 foot at 4 seconds. 
.thu...e winds around 15 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 4 ft at 6 seconds and e 1 foot at
11 seconds. patchy fog. showers. vsby 1 nm or less in the
afternoon. 
.thu night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. gusts up to 20 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 9 seconds and e 2 ft at 5 seconds. patchy fog. showers, mainly
in the evening. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.fri...e winds 5 to 10 kt, becoming ne in the afternoon. seas
3 to 5 ft. wave detail: s 5 ft at 10 seconds and se 5 ft at
10 seconds. showers likely. patchy fog in the morning with vsby
1 to 3 nm. 
.fri night...n winds around 10 kt, becoming nw after midnight.
seas 4 to 5 ft. wave detail: e 5 ft at 5 seconds and e 5 ft at
10 seconds. a chance of showers in the evening. 
.sat through sun night...w winds 15 to 20 kt with gusts up to
25 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 131704
cwfbox
expires:202605140600;;497539

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz255-140600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds around 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 4 ft at 5 seconds and e 1 foot at
7 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: se 4 ft at 7 seconds and se 1 foot at
12 seconds. 
.thu...se winds 15 to 20 kt, becoming e 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 4 ft. wave detail: se
4 ft at 5 seconds and sw 3 ft at 6 seconds. patchy fog. showers.
vsby 1 to 3 nm in the afternoon. 
.thu night...e winds 10 to 15 kt, becoming se 5 to 10 kt after
midnight. seas 3 to 5 ft. wave detail: se 5 ft at 9 seconds and
sw 4 ft at 7 seconds. patchy fog. showers likely, mainly in the
evening. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.fri...ne winds 5 to 10 kt, becoming n in the afternoon. seas
3 to 5 ft. wave detail: s 5 ft at 9 seconds and se 5 ft at
10 seconds. a chance of showers. patchy fog in the morning with
vsby 1 to 3 nm. 
.fri night...n winds around 10 kt, becoming nw after midnight.
seas 3 to 5 ft. wave detail: s 5 ft at 10 seconds and e 5 ft at
10 seconds. 
.sat through sun night...w winds 15 to 20 kt with gusts up to
25 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.

$$