fzus51 kbox 192305
cwfbox
expires:202608201200;;016289

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

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


anz231-201200-
cape cod bay-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. gusts up to 20 kt this evening.
seas around 2 ft this evening, then 1 foot or less. wave detail:
sw 1 foot at 3 seconds and e 1 foot at 4 seconds, becoming sw
1 foot at 2 seconds and s 1 foot at 3 seconds. 
.thu...w winds around 5 kt, becoming n in the afternoon. seas
1 foot or less. wave detail: w 1 foot at 2 seconds and s 1 foot
at 6 seconds. 
.thu night...w winds around 5 kt, becoming nw around 5 kt after
midnight. seas 1 foot or less. wave detail: sw 1 foot at
2 seconds and e 1 foot at 2 seconds. a chance of showers in the
evening. 
.fri...ne winds 5 to 10 kt. seas 1 foot or less, then around 2 ft
in the afternoon. wave detail: n 1 foot at 2 seconds and sw
1 foot at 4 seconds, becoming n 1 foot at 3 seconds and se 1 foot
at 5 seconds. 
.fri night and sat...e winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: e 2 ft at 3 seconds and n 1 foot
at 3 seconds. a chance of showers. 
.sat night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 8 seconds and e 1 foot at 3 seconds. showers likely. 
.sun...s winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.sun night through mon 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 192305
cwfbox
expires:202608201200;;016293

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

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


anz232-201200-
nantucket sound-
705 pm edt wed aug 19 2026

.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 4 seconds and e 1 foot at 4 seconds. patchy
fog after midnight. 
.thu...sw winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 2 seconds and se 1 foot at 6 seconds. 
.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 4 seconds and e 1 foot at 8 seconds, becoming w 1 foot
at 2 seconds and s 1 foot at 5 seconds. a chance of showers in
the evening. 
.fri...ne winds around 10 kt. seas around 2 ft. wave detail: n
1 foot at 3 seconds and s 1 foot at 5 seconds. a chance of
showers. 
.fri night...e winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 4 seconds and nw 1 foot at 3 seconds. a chance of
showers. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: se 2 ft at 4 seconds and nw 1 foot
at 4 seconds. showers likely. 
.sun...s winds 10 to 15 kt. seas around 2 ft. showers likely. 
.sun night...sw winds 10 to 15 kt. seas around 2 ft. a chance of
showers. 
.mon and mon night...w winds 10 to 15 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 192305
cwfbox
expires:202608201200;;016294

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

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


anz233-201200-
vineyard sound-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 3 seconds and e 1 foot at 4 seconds. patchy fog 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 4 seconds and se 1 foot
at 8 seconds, becoming sw 1 foot at 3 seconds and s 1 foot at
7 seconds. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
1 foot or less. wave detail: sw 1 foot at 4 seconds and s 1 foot
at 7 seconds. a chance of showers. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: ne 1 foot at 2 seconds and w 1 foot at
3 seconds. a chance of showers. 
.fri night...e winds around 10 kt. seas around 2 ft. wave detail:
se 1 foot at 4 seconds and nw 1 foot at 5 seconds. a chance of
showers. 
.sat and sat night...se winds 10 to 15 kt. seas around 2 ft. wave
detail: e 2 ft at 9 seconds and e 1 foot at 3 seconds. showers
likely. 
.sun...s winds 10 to 15 kt. seas around 2 ft. showers likely. 
.sun night through mon night...w winds 10 to 15 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 192305
cwfbox
expires:202608201200;;016295

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

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


anz234-201200-
buzzards bay-
705 pm edt wed aug 19 2026

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

$$

fzus51 kbox 192305
cwfbox
expires:202608201200;;016296

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

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


anz235-201200-
rhode island sound-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 7 seconds and sw 1 foot at 3 seconds. 
.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. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: s 2 ft at 8 seconds and sw 1 foot at
3 seconds. a chance of showers.
.fri...ne winds around 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: e 2 ft at 3 seconds and nw 1 foot at
3 seconds. a chance of showers.
.fri night...e winds 10 to 15 kt. seas around 2 ft. wave detail:
e 2 ft at 4 seconds and n 1 foot at 3 seconds. a chance of
showers. 
.sat and sat night...se winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and e 2 ft at 4 seconds. showers
likely. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. showers likely. 
.sun night through mon 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.

$$

fzus51 kbox 192305
cwfbox
expires:202608201200;;016299

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

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


anz236-201200-
narragansett bay-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. waves around 2 ft. 
.thu...w winds 5 to 10 kt. waves around 2 ft in the morning, then
1 foot or less. 
.thu night...w winds 5 to 10 kt, becoming nw after midnight.
waves 1 foot or less. a chance of showers in the evening. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. a chance of showers in the afternoon. 
.fri night...e winds 5 to 10 kt. waves 1 foot or less, then
around 2 ft after midnight. a chance of showers. 
.sat and sat night...e winds 5 to 10 kt. waves around 2 ft.
showers likely. 
.sun and sun night...s winds 5 to 10 kt, becoming sw. waves
around 2 ft. a chance of showers. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 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 192305
cwfbox
expires:202608201200;;016287

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

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


anz250-201200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: se 3 ft at 5 seconds and sw 1 foot
at 3 seconds. 
.thu...w winds 5 to 10 kt, diminishing to around 5 kt in the
afternoon. seas 2 to 3 ft. wave detail: se 2 ft at 7 seconds and
sw 1 foot at 3 seconds. 
.thu night...sw winds around 5 kt, becoming n after midnight.
seas around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot
at 3 seconds. a chance of showers in the evening. 
.fri...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 4 seconds and e 2 ft at 8 seconds. 
.fri night and sat...e 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 s 2 ft at
7 seconds. a chance of showers. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 6 seconds and se 1 foot at 13 seconds. showers likely. 
.sun and sun night...se winds 5 to 10 kt, becoming sw. seas 2 to
3 ft. a chance of showers. 
.mon and mon night...w 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 192305
cwfbox
expires:202608201200;;016290

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

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


anz254-201200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
705 pm edt wed aug 19 2026

.tonight...sw winds 5 to 10 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: se 2 ft at 7 seconds and sw 1 foot
at 3 seconds. patchy fog after midnight with vsby 1 to 3 nm. 
.thu...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 8 seconds and w 1 foot at 3 seconds. patchy fog. vsby 1 to
3 nm, decreasing to 1 nm or less 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 sw 1 foot
at 3 seconds. patchy fog. showers likely in the evening. a chance
of showers and tstms after midnight. vsby 1 nm or less. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 8 seconds and n 1 foot at 3 seconds. a chance of showers in
the morning. 
.fri night...e winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 4 seconds and e 2 ft at 8 seconds. a chance of
showers. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 5 seconds and e 3 ft at
8 seconds. a chance of showers in the morning, then showers
likely. 
.sun...s winds around 10 kt. seas 2 to 3 ft. showers likely. 
.sun night...sw winds 5 to 10 kt. seas 2 to 3 ft. a chance of
showers. 
.mon and mon night...w winds 10 to 15 kt with 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 192305
cwfbox
expires:202608201200;;016291

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

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


anz255-201200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
705 pm edt wed aug 19 2026

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

$$