fzus51 kbox 190503
cwfbox
expires:202609191800;;690819

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz231-191800-
cape cod bay-
102 am edt sat sep 19 2026

...small craft advisory in effect until noon edt today...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: n 3 ft at 4 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 25 kt, diminishing
to 5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n
3 ft at 5 seconds. 
.sat night...e winds around 5 kt. seas around 2 ft. wave detail:
n 2 ft at 6 seconds. 
.sun...se winds 5 to 10 kt. seas around 2 ft. wave detail: ne
2 ft at 5 seconds and se 1 foot at 4 seconds. patchy fog in the
afternoon. showers in the afternoon.
.sun night...se winds 5 to 10 kt, becoming e after midnight. seas
1 foot or less, then around 2 ft after midnight. wave detail: se
1 foot at 2 seconds and ne 1 foot at 5 seconds, becoming e 1 foot
at 3 seconds. showers. patchy fog in the evening. vsby 1 to 3 nm.
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
4 ft. wave detail: n 3 ft at 4 seconds. a chance of showers in
the morning. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. 
.tue through wed...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 3 to 5 ft. 
.wed night...e winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 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 190503
cwfbox
expires:202609191800;;690823

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz232-191800-
nantucket sound-
102 am edt sat sep 19 2026

...small craft advisory in effect until noon edt today...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: ne 3 ft at 4 seconds and sw 1 foot
at 5 seconds. 
.sat...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 4 seconds and w 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 6 seconds and nw 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
1 foot at 3 seconds and e 1 foot at 6 seconds. showers likely in
the afternoon. 
.sun night...se winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 4 seconds. showers.
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 4 seconds and nw 2 ft at 5 seconds.
showers likely in the morning. 
.mon night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 2 to 4 ft. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. 
.wed and wed night...ne winds 25 to 35 kt with gusts up to 40 kt.
seas 5 to 7 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 190503
cwfbox
expires:202609191800;;690824

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz233-191800-
vineyard sound-
102 am edt sat sep 19 2026

.rest of tonight...ne winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: ne 2 ft at 4 seconds and sw 1 foot
at 5 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne
2 ft at 3 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas 1 foot or less. wave
detail: nw 1 foot at 5 seconds and ne 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
1 foot at 3 seconds and e 1 foot at 10 seconds. patchy fog in the
afternoon. showers likely in the afternoon. 
.sun night...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: se 1 foot at 3 seconds
and se 1 foot at 8 seconds. showers. patchy fog in the evening. 
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
4 ft. wave detail: ne 3 ft at 3 seconds and s 1 foot at
4 seconds. showers likely in the morning. 
.mon night...ne winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. 
.tue and tue night...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. 
.wed and wed night...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 4 to 6 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 190503
cwfbox
expires:202609191800;;690825

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz234-191800-
buzzards bay-
102 am edt sat sep 19 2026

.rest of tonight...n winds around 15 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: ne 2 ft at 3 seconds and sw 1 foot
at 5 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne
2 ft at 3 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas 1 foot or less. wave
detail: ne 1 foot at 3 seconds and w 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
1 foot at 2 seconds and e 1 foot at 10 seconds. patchy fog in the
afternoon. showers likely in the afternoon. 
.sun night...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: se 1 foot at 2 seconds
and se 1 foot at 7 seconds. showers. patchy fog in the evening
with vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
4 ft. wave detail: ne 2 ft at 3 seconds and s 1 foot at
4 seconds. showers likely in the morning. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. 
.tue and tue night...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. 
.wed night...ne winds 20 to 25 kt with gusts up to 30 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 190503
cwfbox
expires:202609191800;;690826

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz235-191800-
rhode island sound-
102 am edt sat sep 19 2026

.rest of tonight...ne winds 15 to 20 kt. seas around 3 ft. wave
detail: ne 3 ft at 6 seconds and sw 2 ft at 5 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne
3 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 6 seconds and w 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
2 ft at 5 seconds and se 2 ft at 10 seconds. patchy fog in the
afternoon. showers likely in the afternoon. 
.sun night...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 4 seconds and
se 2 ft at 10 seconds. showers. patchy fog in the evening with
vsby 1 to 3 nm. 
.mon...ne winds 20 to 25 kt. seas 2 to 4 ft. wave detail: ne 4 ft
at 5 seconds and s 2 ft at 5 seconds. showers likely in the
morning. 
.mon night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 3 to 5 ft. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. 
.tue night through wed night...ne winds 25 to 30 kt with gusts up
to 40 kt. seas 5 to 8 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 190503
cwfbox
expires:202609191800;;690829

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz236-191800-
narragansett bay-
102 am edt sat sep 19 2026

.rest of tonight...n winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. waves 2 to 3 ft. 
.sat night...e winds 5 to 10 kt. waves 1 foot or less.
.sun...se winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. patchy fog in the afternoon. showers likely in the
afternoon. 
.sun night...se winds 5 to 10 kt, becoming e 10 to 15 kt with
gusts up to 20 kt after midnight. waves around 2 ft. showers.
patchy fog in the evening with vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. a chance of showers in the morning. 
.mon night...ne winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. 
.tue through wed night...ne winds 20 to 25 kt with gusts up to
35 kt. waves 2 to 3 ft, except 4 to 6 ft at the bay entrance.  

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 190503
cwfbox
expires:202609191800;;690817

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz250-191800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
102 am edt sat sep 19 2026

...small craft advisory in effect until noon edt today...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: n 4 ft at 5 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 25 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: ne 4 ft
at 6 seconds and w 2 ft at 5 seconds. 
.sat night...se winds around 5 kt. seas 2 to 3 ft. wave detail:
ne 3 ft at 7 seconds and nw 1 foot at 4 seconds. 
.sun...se winds around 10 kt. seas around 2 ft. wave detail: s
2 ft at 3 seconds and e 2 ft at 7 seconds. showers in the
afternoon. 
.sun night...se winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas around 2 ft. wave detail: e 2 ft at 6 seconds and
s 1 foot at 3 seconds. showers. patchy fog in the evening. vsby
1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 3 seconds and ne 3 ft at 5 seconds.
a chance of showers in the morning. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. 
.tue night...ne winds 15 to 20 kt with gusts up to 30 kt. seas
5 to 7 ft. 
.wed and wed night...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 6 to 9 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 190503
cwfbox
expires:202609191800;;690820

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz254-191800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
102 am edt sat sep 19 2026

...small craft advisory in effect until noon edt today...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: n 4 ft at 5 seconds and sw 1 foot at
5 seconds. 
.sat...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 4 ft. wave detail: ne
4 ft at 6 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas 2 to 4 ft. wave detail: n
3 ft at 6 seconds. 
.sun...se winds around 10 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 7 seconds and s 1 foot at 4 seconds. a chance of showers
in the afternoon. 
.sun night...e winds around 10 kt. seas around 2 ft. wave detail:
e 2 ft at 6 seconds and sw 1 foot at 3 seconds. showers. patchy
fog in the evening. vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: n 3 ft at 6 seconds. a chance of showers in
the morning. 
.mon night...ne winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.tue night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 9 ft. 
.wed and wed night...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 7 to 10 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 190503
cwfbox
expires:202609191800;;690821

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt sat sep 19 2026

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


anz255-191800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
102 am edt sat sep 19 2026

...small craft advisory in effect until noon edt today...

.rest of tonight...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: ne 4 ft at 6 seconds and sw 2 ft at
5 seconds. 
.sat...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: ne
4 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 7 seconds and nw 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds. a chance of showers in the afternoon. 
.sun night...se winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 5 seconds. showers. patchy fog in the evening. 
.mon...ne winds 20 to 25 kt. seas 2 to 4 ft. wave detail: se 4 ft
at 5 seconds. a chance of showers. 
.mon night...ne winds 20 to 25 kt. seas 3 to 5 ft. a chance of
showers after midnight. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 ft. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. 
.wed night...ne winds 25 to 35 kt with gusts up to 40 kt. seas
7 to 10 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.

$$