fzus51 kbox 250504
cwfbox
expires:202608251800;;315965

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz231-251800-
cape cod bay-
104 am edt tue aug 25 2026

.rest of tonight...sw winds around 5 kt. seas around 2 ft. wave
detail: sw 1 foot at 2 seconds and se 1 foot at 5 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...sw winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: se 2 ft at 6 seconds and w 1 foot
at 2 seconds. 
.tue night...sw winds 5 to 10 kt with gusts up to 20 kt, becoming
w after midnight. seas around 2 ft in the evening, then 1 foot or
less. wave detail: sw 1 foot at 2 seconds and se 1 foot at
6 seconds, becoming w 1 foot at 2 seconds and se 1 foot at
6 seconds. 
.wed...nw winds 5 to 10 kt, becoming e in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
nw 1 foot at 3 seconds and se 1 foot at 6 seconds, becoming nw
1 foot at 3 seconds and s 1 foot at 6 seconds. 
.wed night and thu...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 1 foot at 4 seconds and e 1 foot
at 13 seconds. 
.thu night...s winds 5 to 10 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: s 1 foot at 3 seconds and
e 1 foot at 11 seconds. a chance of showers. 
.fri...s winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.fri night through sat night...sw 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 250504
cwfbox
expires:202608251800;;315969

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz232-251800-
nantucket sound-
104 am edt tue aug 25 2026

.rest of tonight...sw winds around 5 kt. seas around 2 ft. wave
detail: sw 1 foot at 3 seconds and se 1 foot at 6 seconds. 
.tue...w winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 4 seconds and se 2 ft at 6 seconds. 
.tue night...w winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and se 2 ft at 6 seconds. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 3 seconds and se 1 foot at
6 seconds. 
.wed night and thu...s winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 4 seconds and e 1 foot at 10 seconds. 
.thu night...s winds 10 to 15 kt. seas around 2 ft. wave detail:
s 2 ft at 4 seconds and se 1 foot at 9 seconds. a chance of
showers in the evening. showers likely after midnight. 
.fri...s winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers. 
.fri night through sat 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 250504
cwfbox
expires:202608251800;;315970

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz233-251800-
vineyard sound-
104 am edt tue aug 25 2026

...small craft advisory in effect from 11 am edt this morning
through this evening...

.rest of tonight...w winds around 5 kt. seas around 2 ft. wave
detail: se 2 ft at 6 seconds and sw 1 foot at 2 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 5 seconds and se 1 foot at 11 seconds. 
.tue night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: s 3 ft
at 5 seconds and se 1 foot at 11 seconds. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and se 1 foot at
10 seconds. 
.wed night and thu...s winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 4 seconds and se 1 foot at 9 seconds. 
.thu night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 5 seconds and se 2 ft at 10 seconds. a chance of showers
in the evening. showers likely after midnight. 
.fri...sw winds around 10 kt. seas 2 to 3 ft. showers likely. 
.fri night through sat 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 250504
cwfbox
expires:202608251800;;315971

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz234-251800-
buzzards bay-
104 am edt tue aug 25 2026

...small craft advisory in effect from 11 am edt this morning
through this evening...

.rest of tonight...w winds around 5 kt. seas around 2 ft. wave
detail: sw 1 foot at 4 seconds and s 1 foot at 7 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 5 seconds and se 1 foot at 11 seconds. 
.tue night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: s 2 ft
at 5 seconds and se 1 foot at 11 seconds. 
.wed...nw winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: sw 1 foot at 5 seconds and se 1 foot at
10 seconds, becoming sw 1 foot at 5 seconds and e 1 foot at
6 seconds. 
.wed night and thu...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 4 seconds and se 1 foot
at 9 seconds. 
.thu night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: s 2 ft at 6 seconds and
se 1 foot at 9 seconds. a chance of showers in the evening.
showers likely after midnight. 
.fri...sw winds around 10 kt. seas around 2 ft. showers likely. 
.fri night through sat night...sw 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 250504
cwfbox
expires:202608251800;;315972

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz235-251800-
rhode island sound-
104 am edt tue aug 25 2026

.rest of tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 7 seconds and w 1 foot at 3 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 4 seconds and s 3 ft at 7 seconds. 
.tue night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw
3 ft at 5 seconds and se 1 foot at 11 seconds. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 5 seconds and se 2 ft at
10 seconds. 
.wed night and thu...s winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: e 3 ft at 5 seconds and se 3 ft at 9 seconds. 
.thu night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
3 ft at 5 seconds and sw 3 ft at 6 seconds. a chance of showers
and tstms in the evening, then showers likely after midnight. 
.fri...sw winds around 10 kt. seas 2 to 3 ft. showers likely. 
.fri night through sat night...sw winds 5 to 10 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 250504
cwfbox
expires:202608251800;;315975

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz236-251800-
narragansett bay-
104 am edt tue aug 25 2026

.rest of tonight...w winds around 5 kt. waves around 2 ft. 
.tue...w winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
waves 2 to 3 ft. 
.tue night...w winds 5 to 10 kt. gusts up to 20 kt in the
evening. waves around 2 ft. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. waves
1 foot or less, then around 2 ft in the afternoon. 
.wed night and thu...s winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.thu night...s winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening. showers likely after midnight. 
.fri...sw winds 5 to 10 kt. waves around 2 ft. showers likely. 
.fri night through sat night...w winds 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 250504
cwfbox
expires:202608251800;;315963

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz250-251800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt tue aug 25 2026

.rest of tonight...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 6 seconds and sw 1 foot at 3 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds and sw 1 foot at 3 seconds. patchy fog in the
morning with vsby 1 to 3 nm. 
.tue night...sw winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: se 2 ft at 6 seconds and sw 1 foot
at 3 seconds. 
.wed...nw winds 5 to 10 kt, becoming s in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 10 seconds and w 1 foot at
3 seconds. 
.wed night and thu...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 4 seconds and se 3 ft at
10 seconds. 
.thu night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: s 3 ft at 4 seconds and se 3 ft at
9 seconds. a chance of showers.
.fri...s winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.fri night through sat 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 250504
cwfbox
expires:202608251800;;315966

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz254-251800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 am edt tue aug 25 2026

.rest of tonight...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 6 seconds and w 1 foot at 3 seconds. patchy
fog. 
.tue...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and s 2 ft at 6 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.tue night...sw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and s 2 ft at 6 seconds. 
.wed...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 10 seconds and se 2 ft at
6 seconds. 
.wed night and thu...s winds 5 to 10 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 9 seconds and s 2 ft at
6 seconds. 
.thu night...s winds around 10 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 9 seconds and s 2 ft at 4 seconds. a chance of
showers. 
.fri...s winds around 10 kt. seas 2 to 4 ft. a chance of showers.
.fri night through sat night...sw winds 5 to 10 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 250504
cwfbox
expires:202608251800;;315967

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt tue aug 25 2026

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


anz255-251800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 am edt tue aug 25 2026

.rest of tonight...sw winds around 5 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 6 seconds and sw 1 foot at 2 seconds. patchy
fog. vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 5 seconds and se 1 foot at 11 seconds. 
.tue night...w winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 5 seconds and se 1 foot at 6 seconds. 
.wed...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds and s 2 ft at 6 seconds. 
.wed night and thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 9 seconds and s 2 ft at 5 seconds. 
.thu night...s winds 10 to 15 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 5 seconds and se 2 ft at 9 seconds. a chance of tstms. a
chance of showers in the evening, then showers likely after
midnight. 
.fri...s winds around 10 kt. seas 3 to 4 ft. showers likely. 
.fri night through sat night...s winds 5 to 10 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.

$$