fzus51 kbox 300503
cwfbox
expires:202510301800;;538857

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-301800-
cape cod bay-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds around 10 kt. seas 2 to 4 ft. wave
detail: n 3 ft at 5 seconds. patchy drizzle. 
.thu...e winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 2 to
4 ft. wave detail: e 3 ft at 4 seconds and n 1 foot at 5 seconds.
a chance of showers in the afternoon. 
.thu night...e winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 4 ft. wave detail: e 4 ft at 4 seconds. patchy fog. showers.
vsby 1 nm or less. 
.fri...sw winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 35 kt. seas 3 to 4 ft, building to 4 to
6 ft in the afternoon. wave detail: e 4 ft at 7 seconds and s
2 ft at 4 seconds, becoming sw 3 ft at 4 seconds and ne 3 ft at
7 seconds. patchy fog in the morning. showers in the morning with
vsby 1 to 3 nm. 
.fri night and sat...w winds 20 to 25 kt with gusts up to 40 kt.
seas 4 to 6 ft. wave detail: w 5 ft at 4 seconds and e 2 ft at
8 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
4 ft. wave detail: nw 4 ft at 5 seconds and se 1 foot at
11 seconds. 
.sun through mon...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. 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 300503
cwfbox
expires:202510301800;;538861

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-301800-
nantucket sound-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds around 15 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 8 seconds. patchy drizzle. 
.thu...e winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: e 5 ft at 7 seconds. a chance of showers in
the afternoon. 
.thu night...e winds 25 to 30 kt. seas 4 to 6 ft. wave detail: e
6 ft at 7 seconds and se 2 ft at 3 seconds. patchy fog. showers.
vsby 1 nm or less. 
.fri...sw winds 20 to 25 kt with gusts up to 30 kt, increasing to
25 to 30 kt with gusts up to 45 kt in the afternoon. seas 5 to
7 ft. wave detail: sw 6 ft at 5 seconds and se 5 ft at
10 seconds. patchy fog in the morning. showers likely in the
morning. 
.fri night and sat...w winds 25 to 35 kt with gusts up to 50 kt.
seas 6 to 9 ft. wave detail: w 7 ft at 6 seconds and se 3 ft at
10 seconds. 
.sat night...w winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 15 to 20 kt after midnight. seas 4 to 6 ft, subsiding to 2 to
4 ft after midnight. wave detail: w 5 ft at 5 seconds and se
1 foot at 11 seconds, becoming w 4 ft at 5 seconds and se 1 foot
at 10 seconds. 
.sun through mon...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. 
.mon night...w winds 20 to 25 kt with gusts up to 30 kt. seas
3 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 300503
cwfbox
expires:202510301800;;538862

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-301800-
vineyard sound-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: ne 2 ft at 5 seconds. patchy drizzle. 
.thu...e winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 2 to 4 ft. wave detail: e 3 ft
at 5 seconds. a chance of showers in the afternoon. 
.thu night...e winds 25 to 30 kt, becoming se 20 to 25 kt after
midnight. seas 3 to 5 ft. wave detail: se 4 ft at 4 seconds.
patchy fog. showers. vsby 1 nm or less. 
.fri...sw winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 40 kt. seas 5 to 8 ft. wave detail: sw
7 ft at 7 seconds and s 4 ft at 8 seconds. patchy fog in the
morning. showers likely in the morning. 
.fri night...w winds 25 to 30 kt with gusts up to 45 kt. seas
8 to 11 ft. wave detail: sw 9 ft at 8 seconds and s 4 ft at
15 seconds. 
.sat...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 6 to 9 ft, subsiding to 5 to
7 ft in the afternoon. wave detail: sw 8 ft at 8 seconds and s
3 ft at 13 seconds, becoming sw 6 ft at 7 seconds and s 2 ft at
12 seconds. 
.sat night...nw winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 4 to 6 ft, subsiding to
2 to 4 ft after midnight. 
.sun through mon...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.mon night...w winds 20 to 25 kt. seas 3 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 300503
cwfbox
expires:202510301800;;538863

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-301800-
buzzards bay-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds 10 to 15 kt. seas around 2 ft. wave
detail: ne 2 ft at 3 seconds. patchy drizzle. 
.thu...e winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
3 ft. wave detail: e 3 ft at 4 seconds. a chance of showers in
the afternoon. 
.thu night...e winds 25 to 30 kt, becoming se 20 to 25 kt after
midnight. seas 3 to 4 ft. wave detail: se 4 ft at 4 seconds.
patchy fog. showers. vsby 1 nm or less. 
.fri...sw winds 20 to 25 kt with gusts up to 30 kt, increasing to
25 to 30 kt with gusts up to 40 kt in the afternoon. seas 4 to
6 ft. wave detail: sw 6 ft at 7 seconds and s 3 ft at 8 seconds.
patchy fog in the morning. showers likely in the morning. 
.fri night...w winds 25 to 30 kt with gusts up to 45 kt. seas
5 to 7 ft. wave detail: sw 7 ft at 8 seconds and s 3 ft at
14 seconds. 
.sat...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 4 to 6 ft. wave detail: sw
6 ft at 8 seconds and s 3 ft at 12 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
4 ft. 
.sun and sun night...nw winds 10 to 15 kt, diminishing to 5 to
10 kt. seas around 2 ft. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.mon night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 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 300503
cwfbox
expires:202510301800;;538864

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-301800-
rhode island sound-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds around 15 kt with gusts up to 20 kt.
seas 3 to 5 ft. wave detail: ne 5 ft at 9 seconds. patchy
drizzle. 
.thu...e winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: e 6 ft
at 6 seconds. showers likely in the afternoon. 
.thu night...e winds 25 to 30 kt, becoming se 20 to 25 kt after
midnight. seas 5 to 7 ft. wave detail: e 7 ft at 7 seconds and se
1 foot at 3 seconds. patchy fog. showers. vsby 1 nm or less,
increasing to 1 to 3 nm after midnight. 
.fri...sw winds 25 to 30 kt with gusts up to 40 kt. seas 5 to
8 ft, building to 7 to 10 ft in the afternoon. wave detail: s
8 ft at 9 seconds and sw 4 ft at 5 seconds, becoming sw 10 ft at
8 seconds and s 8 ft at 13 seconds. patchy fog in the morning. 
.fri night...w winds 25 to 30 kt with gusts up to 45 kt. seas
8 to 11 ft. wave detail: sw 11 ft at 8 seconds and s 9 ft at
12 seconds. 
.sat...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 8 to 11 ft, subsiding to 6 to
9 ft in the afternoon. wave detail: w 10 ft at 8 seconds and s
5 ft at 13 seconds, becoming w 7 ft at 8 seconds and s 3 ft at
12 seconds.
.sat night...nw winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 4 to 6 ft. 
.sun through mon...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.mon night...w winds 20 to 25 kt. seas 3 to 5 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 300503
cwfbox
expires:202510301800;;538867

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-301800-
narragansett bay-
103 am edt thu oct 30 2025

...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds around 10 kt. waves 2 to 3 ft. patchy
drizzle. 
.thu...e winds 15 to 20 kt with gusts up to 30 kt. waves 2 to
4 ft. showers likely in the afternoon. 
.thu night...e winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 30 kt. waves 2 to 4 ft. patchy fog.
showers. vsby 1 nm or less. 
.fri...sw winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 35 kt. waves 4 to 6 ft. patchy fog in the
morning. 
.fri night and sat...w winds 20 to 25 kt with gusts up to 40 kt.
waves 4 to 6 ft. 
.sat night...nw winds 10 to 15 kt. gusts up to 25 kt in the
evening. waves 2 to 3 ft. 
.sun through mon...w winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.mon night...sw winds around 15 kt with gusts up to 20 kt. waves
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 300503
cwfbox
expires:202510301800;;538855

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-301800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds 10 to 15 kt. seas 6 to 8 ft. wave
detail: e 7 ft at 10 seconds. patchy drizzle. 
.thu...e winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 6 to 8 ft. wave detail: e 7 ft
at 11 seconds. 
.thu night...e winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 8 ft. wave detail: e 8 ft at 10 seconds. patchy fog.
showers. vsby 1 nm or less. 
.fri...s winds 15 to 20 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 35 kt. seas 6 to 8 ft. wave detail: e 8 ft
at 10 seconds and sw 4 ft at 4 seconds. patchy fog in the
morning. showers in the morning with vsby 1 to 3 nm. 
.fri night and sat...w winds 25 to 30 kt with gusts up to 45 kt.
seas 6 to 9 ft. wave detail: w 7 ft at 6 seconds and e 7 ft at
10 seconds. 
.sat night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 7 ft, subsiding to 3 to
5 ft after midnight. wave detail: nw 6 ft at 5 seconds and se
3 ft at 11 seconds, becoming nw 4 ft at 5 seconds and se 2 ft at
11 seconds. 
.sun and sun night...nw winds 10 to 15 kt. gusts up to 20 kt.
seas 2 to 4 ft. 
.mon...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. a chance of showers. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 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 300503
cwfbox
expires:202510301800;;538858

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-301800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds 10 to 15 kt. seas 6 to 9 ft. wave
detail: e 8 ft at 10 seconds. patchy drizzle. 
.thu...e winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 6 to 8 ft. wave detail: e 8 ft
at 11 seconds. 
.thu night...e winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 8 ft. wave detail: e 8 ft at 11 seconds. patchy fog.
showers. vsby 1 nm or less. 
.fri...sw winds 20 to 25 kt with gusts up to 30 kt, increasing to
25 to 30 kt with gusts up to 40 kt in the afternoon. seas 6 to
9 ft, building to 8 to 11 ft in the afternoon. wave detail: se
9 ft at 10 seconds and sw 3 ft at 5 seconds, becoming e 9 ft at
10 seconds and sw 7 ft at 6 seconds. patchy fog in the morning.
showers likely in the morning with vsby 1 to 3 nm. 
.fri night and sat...w winds 25 to 30 kt with gusts up to 45 kt.
seas 8 to 11 ft, except 12 to 16 ft s and e of nantucket. wave
detail: w 8 ft at 6 seconds and se 8 ft at 11 seconds. 
.sat night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 8 ft, subsiding to 4 to
6 ft after midnight. wave detail: nw 6 ft at 6 seconds and s 3 ft
at 11 seconds, becoming nw 5 ft at 6 seconds and se 2 ft at
10 seconds. 
.sun...nw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. 
.sun night and mon...nw winds 5 to 10 kt, becoming w 10 to 15 kt
with gusts up to 20 kt. seas 2 to 4 ft. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 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 300503
cwfbox
expires:202510301800;;538859

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt thu oct 30 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-301800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 am edt thu oct 30 2025

...small craft advisory in effect through this evening...
...gale watch in effect from this evening through saturday
evening...

.rest of tonight...ne winds 15 to 20 kt. seas 5 to 8 ft. wave
detail: e 7 ft at 10 seconds. patchy drizzle. 
.thu...e winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 5 to 8 ft. wave detail: e 8 ft
at 9 seconds. a chance of showers in the afternoon. 
.thu night...se winds 25 to 30 kt. seas 6 to 8 ft. wave detail: e
8 ft at 8 seconds. patchy fog. showers. vsby 1 nm or less. 
.fri...sw winds 25 to 35 kt. gusts up to 45 kt in the afternoon.
seas 7 to 10 ft, building to 9 to 13 ft in the afternoon. wave
detail: s 9 ft at 9 seconds and sw 7 ft at 7 seconds, becoming sw
12 ft at 9 seconds and e 7 ft at 11 seconds. patchy fog in the
morning. showers likely in the morning. 
.fri night...w winds 30 to 40 kt with gusts up to 50 kt. seas
12 to 17 ft. wave detail: sw 15 ft at 10 seconds and se 6 ft at
13 seconds. a chance of showers in the evening. 
.sat...w winds 30 to 35 kt, diminishing to 25 to 30 kt in the
afternoon. gusts up to 45 kt. seas 11 to 15 ft, subsiding to 9 to
13 ft in the afternoon. wave detail: w 13 ft at 9 seconds and s
5 ft at 13 seconds, becoming w 11 ft at 9 seconds and s 4 ft at
12 seconds. 
.sat night...nw winds 25 to 30 kt, diminishing to 15 to 20 kt
after midnight. seas 7 to 10 ft, subsiding to 5 to 7 ft after
midnight. 
.sun...nw winds around 15 kt. seas 3 to 5 ft. 
.sun night...nw winds 10 to 15 kt. seas 2 to 3 ft.
.mon...w winds 15 to 20 kt. seas 3 to 5 ft. 
.mon night...w winds 25 to 30 kt. seas 4 to 6 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.

$$