fzus51 kbox 190804
cwfbox
expires:202608192100;;980807

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz231-192100-
cape cod bay-
404 am edt wed aug 19 2026

.today...sw winds around 5 kt, becoming s 10 to 15 kt with gusts
up to 20 kt this afternoon. seas around 2 ft. wave detail: sw
1 foot at 2 seconds and ne 1 foot at 3 seconds. patchy fog this
morning. 
.tonight...sw winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas around 2 ft in the evening, then 1 foot or less. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 6 seconds,
becoming sw 1 foot at 2 seconds and se 1 foot at 7 seconds. 
.thu...sw winds around 5 kt, becoming n in the afternoon. seas
1 foot or less. wave detail: sw 1 foot at 2 seconds and e 1 foot
at 8 seconds. patchy fog in the morning. a chance of showers in
the afternoon. 
.thu night...w winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: sw 1 foot at 2 seconds and e
1 foot at 7 seconds. 
.fri and fri night...e winds 5 to 10 kt. seas around 2 ft. wave
detail: nw 1 foot at 3 seconds and ne 1 foot at 8 seconds. 
.sat and sat night...e winds 5 to 10 kt. seas around 2 ft. wave
detail: e 1 foot at 2 seconds and sw 1 foot at 4 seconds. a
chance of showers. 
.sun and sun night...se winds 5 to 10 kt, becoming sw. 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 190804
cwfbox
expires:202608192100;;980811

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz232-192100-
nantucket sound-
404 am edt wed aug 19 2026

.today...sw winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and se 1 foot at 7 seconds. 
.tonight...sw winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas around 2 ft. wave
detail: sw 2 ft at 3 seconds and se 1 foot at 6 seconds. patchy
fog. vsby 1 to 3 nm, decreasing to 1 nm or less after midnight. 
.thu...sw winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: sw 1 foot at 3 seconds and se 1 foot
at 7 seconds, becoming sw 1 foot at 2 seconds and se 1 foot at
7 seconds. patchy fog in the morning. a chance of showers in the
afternoon. vsby 1 nm or less in the morning. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft in the evening, then 1 foot or less. wave detail: w
1 foot at 3 seconds and se 1 foot at 7 seconds, becoming w 1 foot
at 3 seconds and se 1 foot at 8 seconds. 
.fri...ne winds around 10 kt. seas 1 foot or less, then around
2 ft in the afternoon. wave detail: nw 1 foot at 3 seconds and ne
1 foot at 8 seconds, becoming ne 1 foot at 3 seconds and nw
1 foot at 4 seconds. 
.fri night...ne winds around 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: ne 1 foot at 3 seconds
and nw 1 foot at 4 seconds, becoming e 1 foot at 3 seconds and w
1 foot at 6 seconds. a chance of showers after midnight. 
.sat and sat night...e winds 10 to 15 kt. gusts up to 20 kt. seas
around 2 ft. showers likely. 
.sun...s winds 10 to 15 kt. seas around 2 ft. a chance of
showers. 
.sun 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 190804
cwfbox
expires:202608192100;;980812

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz233-192100-
vineyard sound-
404 am edt wed aug 19 2026

.today...sw winds around 5 kt, increasing to around 10 kt this
afternoon. seas around 2 ft. wave detail: se 2 ft at 7 seconds
and sw 1 foot at 4 seconds. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 7 seconds and sw 1 foot at 4 seconds. patchy fog after
midnight with vsby 1 nm or less. 
.thu...sw winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: sw 1 foot at 4 seconds and se 1 foot
at 7 seconds, becoming sw 1 foot at 3 seconds and se 1 foot at
7 seconds. patchy fog in the morning with vsby 1 nm or less. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft in the evening, then 1 foot or less. wave detail: sw
1 foot at 3 seconds and se 1 foot at 7 seconds, becoming w 1 foot
at 3 seconds and se 1 foot at 8 seconds. 
.fri...ne winds 5 to 10 kt. seas 1 foot or less. wave detail: w
1 foot at 3 seconds and ne 1 foot at 7 seconds. 
.fri night...e winds 5 to 10 kt. seas 1 foot or less. wave
detail: ne 1 foot at 3 seconds and nw 1 foot at 6 seconds. a
chance of showers after midnight. 
.sat and sat night...e winds 10 to 15 kt. seas around 2 ft.
showers likely. 
.sun and sun night...se winds 5 to 10 kt, becoming sw 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 190804
cwfbox
expires:202608192100;;980813

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz234-192100-
buzzards bay-
404 am edt wed aug 19 2026

.today...sw winds around 5 kt, increasing to around 10 kt with
gusts up to 20 kt this afternoon. seas around 2 ft. wave detail:
sw 1 foot at 4 seconds and se 1 foot at 7 seconds. 
.tonight...sw winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas around 2 ft. wave detail: sw 1 foot at 3 seconds and se
1 foot at 6 seconds. patchy fog after midnight with vsby 1 nm or
less. 
.thu...sw winds 5 to 10 kt. seas 1 foot or less. wave detail: sw
1 foot at 3 seconds and se 1 foot at 7 seconds. patchy fog in the
morning. a chance of showers in the afternoon. vsby 1 nm or less
in the morning. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
1 foot or less. wave detail: sw 1 foot at 3 seconds and se 1 foot
at 7 seconds. 
.fri...ne winds 5 to 10 kt. seas 1 foot or less. wave detail: nw
1 foot at 3 seconds and ne 1 foot at 6 seconds. 
.fri night...e winds 5 to 10 kt. seas 1 foot or less. wave
detail: ne 1 foot at 2 seconds and nw 1 foot at 5 seconds. a
chance of showers after midnight. 
.sat and sat night...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. seas around 2 ft. showers likely. 
.sun and sun night...se winds 10 to 15 kt, becoming sw. gusts up
to 20 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 190804
cwfbox
expires:202608192100;;980814

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz235-192100-
rhode island sound-
404 am edt wed aug 19 2026

.today...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 7 seconds and e 1 foot at 9 seconds. patchy fog this morning. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: sw
2 ft at 3 seconds and se 2 ft at 7 seconds. patchy fog after
midnight with vsby 1 nm or less. 
.thu...sw winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 7 seconds and sw 1 foot at 3 seconds. patchy fog in the
morning with vsby 1 nm or less. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: se 2 ft at 7 seconds and sw 1 foot at
3 seconds. 
.fri...n winds around 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 3 seconds and ne 1 foot at
7 seconds. 
.fri night...e winds around 10 kt. seas around 2 ft. wave detail:
e 2 ft at 3 seconds and nw 1 foot at 7 seconds. a chance of
showers after midnight. 
.sat and sat night...e winds 10 to 15 kt. gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.sun...se winds around 10 kt. seas 2 to 3 ft. a chance of
showers. 
.sun night...sw winds 10 to 15 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 190804
cwfbox
expires:202608192100;;980817

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz236-192100-
narragansett bay-
404 am edt wed aug 19 2026

.today...sw winds 5 to 10 kt. waves around 2 ft. 
.tonight...sw winds 5 to 10 kt. waves around 2 ft. patchy fog
after midnight with vsby 1 nm or less. 
.thu...w winds 5 to 10 kt. waves 1 foot or less. patchy fog in
the morning. a chance of showers in the afternoon. vsby 1 to 3 nm
in the morning. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight.
waves 1 foot or less. 
.fri and fri night...ne winds 5 to 10 kt. waves 1 foot or less. 
.sat and sat night...e winds 10 to 15 kt, diminishing to 5 to
10 kt. waves around 2 ft. a chance of showers. 
.sun and sun night...se winds 5 to 10 kt, becoming sw. 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 190804
cwfbox
expires:202608192100;;980805

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz250-192100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am edt wed aug 19 2026

.today...s winds 5 to 10 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 8 seconds. patchy fog this morning
with vsby 1 to 3 nm. 
.tonight...sw winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and s 2 ft at
3 seconds. 
.thu...w winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 8 seconds and se 2 ft at 8 seconds. a chance of showers in the
afternoon. 
.thu night...sw winds around 5 kt, becoming n after midnight.
seas around 2 ft. wave detail: e 2 ft at 8 seconds and sw 1 foot
at 2 seconds. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 8 seconds and n 1 foot at 4 seconds. 
.fri night...e winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 8 seconds and n 1 foot at 4 seconds. 
.sat...e winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.sat night...e winds 5 to 10 kt. seas around 2 ft. a chance of
showers. 
.sun and sun night...e winds 5 to 10 kt, becoming sw. 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 190804
cwfbox
expires:202608192100;;980808

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz254-192100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 am edt wed aug 19 2026

.today...sw winds 5 to 10 kt. gusts up to 20 kt this afternoon.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and sw 1 foot
at 2 seconds. patchy fog this morning with vsby 1 to 3 nm. 
.tonight...sw winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and sw 2 ft at
3 seconds. patchy fog. vsby 1 to 3 nm, decreasing to 1 nm or less
after midnight. 
.thu...sw winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 8 seconds and se 2 ft at 8 seconds. patchy fog. vsby 1 nm or
less, increasing to 1 to 3 nm in the afternoon. 
.thu night...sw winds around 5 kt, becoming nw after midnight.
seas around 2 ft. wave detail: se 2 ft at 8 seconds and w 1 foot
at 3 seconds. 
.fri and fri night...ne winds 5 to 10 kt. seas around 2 ft. wave
detail: e 2 ft at 7 seconds and nw 1 foot at 3 seconds. a chance
of showers in the morning. a chance of showers after midnight. 
.sat and sat night...e winds 10 to 15 kt, becoming se 5 to 10 kt.
seas 2 to 3 ft. wave detail: e 3 ft at 5 seconds and se 2 ft at
8 seconds. showers likely. 
.sun...s winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.sun night...sw winds around 10 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 190804
cwfbox
expires:202608192100;;980809

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt wed aug 19 2026

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


anz255-192100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 am edt wed aug 19 2026

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

$$