fzus51 kbox 202303
cwfbox
expires:202608211200;;074971

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz231-211200-
cape cod bay-
703 pm edt thu aug 20 2026

.tonight...w winds 5 to 10 kt, becoming ne with gusts up to 20 kt
after midnight. seas 1 foot or less, then around 2 ft after
midnight. wave detail: sw 1 foot at 2 seconds and e 1 foot at
9 seconds, becoming n 1 foot at 4 seconds. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 2 ft at 4 seconds. rain.
.fri night...ne winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: ne 2 ft at 4 seconds. rain. patchy
drizzle after midnight. 
.sat...e winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas around 2 ft. wave detail: n 2 ft at 4 seconds. a
chance of rain or patchy drizzle in the morning, then showers
likely in the afternoon. 
.sat night...se winds around 5 kt. seas around 2 ft. wave detail:
e 1 foot at 4 seconds and nw 1 foot at 4 seconds. showers likely.
.sun...s winds 5 to 10 kt. seas around 2 ft. wave detail: se
1 foot at 2 seconds and ne 1 foot at 4 seconds. a chance of
showers. 
.sun night...s winds 5 to 10 kt. seas around 2 ft. 
.mon through tue night...sw winds 5 to 10 kt with gusts up to
20 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 202303
cwfbox
expires:202608211200;;074975

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz232-211200-
nantucket sound-
703 pm edt thu aug 20 2026

.tonight...w winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. seas around 2 ft. wave detail: sw 1 foot at 3 seconds
and e 1 foot at 8 seconds. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 2 ft at 4 seconds and sw 1 foot at
3 seconds. rain.
.fri night...ne 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 sw 1 foot at
5 seconds. rain. patchy drizzle after midnight. 
.sat...e winds 10 to 15 kt. seas around 2 ft. wave detail: e 2 ft
at 5 seconds and sw 1 foot at 5 seconds. a chance of rain or
patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night and sun...s winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 3 seconds and e 2 ft at 5 seconds. showers. a
chance of showers in the afternoon. 
.sun night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 4 seconds and e 1 foot at 7 seconds. a chance of showers.
.mon through tue night...sw winds 15 to 20 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 202303
cwfbox
expires:202608211200;;074976

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz233-211200-
vineyard sound-
703 pm edt thu aug 20 2026

.tonight...w winds 5 to 10 kt, becoming ne 10 to 15 kt after
midnight. seas around 2 ft. wave detail: sw 1 foot at 4 seconds
and se 1 foot at 8 seconds. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 2 ft at 3 seconds and s 1 foot at
4 seconds. rain.
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: ne 2 ft at 4 seconds and
sw 1 foot at 5 seconds. rain. patchy drizzle after midnight. 
.sat...ne winds 10 to 15 kt. seas around 2 ft. wave detail: ne
1 foot at 4 seconds and sw 1 foot at 5 seconds. a chance of rain
or patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 5 seconds and ne 1 foot at 5 seconds. showers.
.sun...s winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 4 seconds and se 1 foot at 8 seconds. a chance of showers. 
.sun night...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 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 202303
cwfbox
expires:202608211200;;074977

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz234-211200-
buzzards bay-
703 pm edt thu aug 20 2026

.tonight...nw winds 5 to 10 kt, becoming ne after midnight. seas
around 2 ft. wave detail: sw 1 foot at 3 seconds and se 1 foot at
8 seconds. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 2 ft at 3 seconds and sw 1 foot at
3 seconds. rain.
.fri night...ne winds 10 to 15 kt. seas around 2 ft. wave detail:
ne 2 ft at 3 seconds and sw 1 foot at 5 seconds. rain. patchy
drizzle after midnight. 
.sat...ne winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas around 2 ft. wave detail: ne 1 foot at 3 seconds
and sw 1 foot at 5 seconds. a chance of rain or patchy drizzle in
the morning, then showers likely in the afternoon. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 1 foot at 2 seconds and s 1 foot at 5 seconds. showers.
.sun...s winds 5 to 10 kt. seas around 2 ft. wave detail: se
1 foot at 3 seconds. showers likely in the morning. a chance of
showers in the afternoon. 
.sun night...sw winds 5 to 10 kt. seas around 2 ft. 
.mon through tue 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 202303
cwfbox
expires:202608211200;;074978

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz235-211200-
rhode island sound-
703 pm edt thu aug 20 2026

.tonight...w winds 5 to 10 kt, becoming n 10 to 15 kt with gusts
up to 20 kt after midnight. seas around 2 ft. wave detail: se
2 ft at 8 seconds and sw 1 foot at 3 seconds. rain.
.fri...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 3 ft at 5 seconds and
s 1 foot at 4 seconds. rain.
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: ne 2 ft at 5 seconds and
sw 1 foot at 5 seconds. rain likely. patchy drizzle after
midnight. 
.sat...ne winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne 3 ft
at 5 seconds and sw 1 foot at 5 seconds. a chance of rain or
patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
2 ft at 6 seconds. showers.
.sun...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft at
6 seconds and se 2 ft at 10 seconds. a chance of showers in the
morning. 
.sun night...sw winds 10 to 15 kt. seas 2 to 4 ft.
.mon through tue night...sw winds 15 to 20 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 202303
cwfbox
expires:202608211200;;074981

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz236-211200-
narragansett bay-
703 pm edt thu aug 20 2026

.tonight...nw winds 5 to 10 kt, becoming ne after midnight. waves
around 2 ft. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. rain.
.fri night...ne winds 10 to 15 kt. waves around 2 ft. rain
likely. patchy drizzle after midnight. 
.sat...ne winds 5 to 10 kt. waves around 2 ft. a chance of rain
or patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...ne winds 5 to 10 kt. waves around 2 ft. showers.
.sun...s winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the morning. 
.sun night...sw winds 5 to 10 kt. waves 2 to 3 ft.
.mon through tue night...sw 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 202303
cwfbox
expires:202608211200;;074969

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz250-211200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 pm edt thu aug 20 2026

.tonight...sw winds 5 to 10 kt, becoming n 10 to 15 kt with gusts
up to 20 kt after midnight. seas around 2 ft. wave detail: ne
2 ft at 8 seconds and sw 1 foot at 2 seconds. a chance of rain.
patchy drizzle after midnight. 
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 6 seconds and nw 2 ft at
10 seconds. a chance of rain or patchy drizzle. 
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: n 2 ft at 5 seconds.
rain likely or patchy drizzle. 
.sat...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: e 3 ft at 6 seconds and s 2 ft at
7 seconds. rain likely or patchy drizzle in the morning, then
showers likely in the afternoon. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 3 seconds and e 3 ft at 6 seconds. showers likely. 
.sun...se winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 7 seconds and w 1 foot at 3 seconds. a chance of showers. 
.sun night...s winds 5 to 10 kt. seas 2 to 3 ft. 
.mon through tue night...sw winds 5 to 10 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 202303
cwfbox
expires:202608211200;;074972

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz254-211200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
703 pm edt thu aug 20 2026

.tonight...sw winds 5 to 10 kt, becoming ne 10 to 15 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 8 seconds and
sw 1 foot at 3 seconds. a slight chance of rain this evening,
then a chance of rain or patchy drizzle after midnight. 
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 6 seconds and sw 1 foot at
3 seconds. rain.
.fri night...e winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: e 3 ft at 5 seconds and nw 1 foot at
4 seconds. rain. patchy drizzle after midnight. 
.sat...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: e 3 ft at 6 seconds and w 1 foot at
4 seconds. a chance of rain or patchy drizzle in the morning,
then showers likely in the afternoon. 
.sat night and sun...s winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 6 seconds. showers. a chance of showers in the
afternoon. 
.sun night...s winds 5 to 10 kt. seas 2 to 4 ft. wave detail: sw
4 ft at 6 seconds and se 3 ft at 9 seconds. a chance of showers. 
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 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 202303
cwfbox
expires:202608211200;;074973

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt thu aug 20 2026

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


anz255-211200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 pm edt thu aug 20 2026

.tonight...sw winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 8 seconds and
sw 1 foot at 3 seconds. a chance of rain this evening, then rain
after midnight. 
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 6 seconds and sw 1 foot at
3 seconds. rain.
.fri night...e winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: e 3 ft at 5 seconds and sw
1 foot at 5 seconds. rain. patchy drizzle after midnight. 
.sat...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 3 ft at
6 seconds and sw 1 foot at 5 seconds. a chance of rain or patchy
drizzle in the morning. showers likely in the afternoon. 
.sat night and sun...s winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 7 seconds. showers. a chance of showers in the
afternoon. 
.sun night...sw winds around 10 kt. seas 3 to 5 ft. wave detail:
s 5 ft at 7 seconds and se 1 foot at 12 seconds. a chance of
showers. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 5 ft. 
.tue and tue night...w winds 10 to 15 kt with gusts up to 20 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.

$$