fzus51 kbox 180504
cwfbox
expires:202610181800;;289663

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz231-181800-
cape cod bay-
104 am edt sun oct 18 2026

...small craft advisory in effect until 2 am edt early this
morning...

.rest of tonight...n winds 10 to 15 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: n 4 ft at 6 seconds and se 1 foot at
9 seconds. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 3 ft
at 5 seconds and se 1 foot at 9 seconds. 
.sun night...e winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 4 seconds and se 1 foot at 9 seconds. 
.mon...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: e 3 ft at 10 seconds and se 3 ft at
11 seconds. 
.mon night and tue...n winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: e 5 ft at 9 seconds and e 5 ft at
11 seconds. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. wave detail: n 6 ft at 5 seconds and e 6 ft at
9 seconds. 
.wed and wed night...ne winds 25 to 30 kt, diminishing to 20 to
25 kt. seas 4 to 6 ft. 
.thu...ne winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of showers. 
.thu night...n winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 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 180504
cwfbox
expires:202610181800;;289667

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz232-181800-
nantucket sound-
104 am edt sun oct 18 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: n 3 ft at 4 seconds and s 1 foot at
8 seconds. 
.sun...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: n 3 ft
at 5 seconds and ne 2 ft at 11 seconds. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: e 2 ft at 5 seconds and n 2 ft at
6 seconds. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: e 4 ft at 11 seconds and ne 3 ft at 5 seconds.
.mon night...ne winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. seas 4 to 6 ft. wave detail: n 5 ft at 5 seconds
and e 4 ft at 11 seconds. a chance of showers. 
.tue and tue night...ne winds 25 to 35 kt with gusts up to 40 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 5 seconds and e 4 ft at
11 seconds. 
.wed...ne winds 25 to 35 kt with gusts up to 40 kt. seas 5 to
7 ft. 
.wed night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 7 ft. a chance of showers. 
.thu and thu night...ne winds 25 to 30 kt with gusts up to 35 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.

$$

fzus51 kbox 180504
cwfbox
expires:202610181800;;289668

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz233-181800-
vineyard sound-
104 am edt sun oct 18 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: n 2 ft at 4 seconds and s 1 foot
at 7 seconds. 
.sun...n winds 15 to 20 kt with gusts up to 25 kt, becoming ne
around 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and s 1 foot at 8 seconds. 
.sun night...e winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 12 seconds and ne 1 foot at 4 seconds. 
.mon...ne winds 15 to 20 kt. seas 2 to 4 ft. wave detail: ne 2 ft
at 4 seconds and se 2 ft at 15 seconds. 
.mon night through tue night...ne winds 25 to 30 kt with gusts up
to 35 kt. seas 3 to 5 ft. wave detail: ne 5 ft at 5 seconds and
se 3 ft at 12 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: ne 5 ft at 5 seconds and se 1 foot at
10 seconds. 
.wed night through thu night...n winds 25 to 30 kt with gusts up
to 35 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 180504
cwfbox
expires:202610181800;;289669

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz234-181800-
buzzards bay-
104 am edt sun oct 18 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and s 1 foot at
7 seconds. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and s 1 foot at 7 seconds. 
.sun night...e winds 5 to 10 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: ne 1 foot at 3 seconds and se
1 foot at 9 seconds, becoming ne 1 foot at 3 seconds and e 1 foot
at 10 seconds. 
.mon...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds and
se 2 ft at 8 seconds. 
.mon night...ne winds 15 to 20 kt, becoming n 20 to 25 kt after
midnight. seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and e
2 ft at 9 seconds. 
.tue and tue night...ne winds 25 to 30 kt. seas 3 to 5 ft. wave
detail: n 5 ft at 5 seconds and e 2 ft at 12 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. 
.wed night through thu night...n winds 25 to 30 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 180504
cwfbox
expires:202610181800;;289670

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz235-181800-
rhode island sound-
104 am edt sun oct 18 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: n 3 ft at 4 seconds and s 1 foot
at 8 seconds. 
.sun...n winds 15 to 20 kt, becoming ne around 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: n 3 ft at 4 seconds and s
1 foot at 8 seconds. 
.sun night...ne winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: ne 2 ft at 4 seconds and
e 1 foot at 9 seconds. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: ne 4 ft at 5 seconds and se 4 ft at
12 seconds. 
.mon night through tue night...ne winds 25 to 30 kt with gusts up
to 35 kt. seas 5 to 7 ft. wave detail: se 7 ft at 13 seconds and
n 6 ft at 5 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: n 6 ft at 5 seconds and e 6 ft at 10 seconds. 
.wed night and thu...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 5 to 7 ft. a chance of showers.
.thu night...n winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 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 180504
cwfbox
expires:202610181800;;289673

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz236-181800-
narragansett bay-
104 am edt sun oct 18 2026

.rest of tonight...n winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. waves 2 to 3 ft. 
.sun night...ne winds 5 to 10 kt. waves 1 foot or less. 
.mon...ne winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves 2 to 3 ft. 
.mon night through tue night...ne winds 20 to 25 kt with gusts up
to 30 kt. waves 2 to 3 ft. 
.wed through thu night...n winds 20 to 25 kt with gusts up to
30 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 180504
cwfbox
expires:202610181800;;289661

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz250-181800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt sun oct 18 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...n winds 10 to 15 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: n 4 ft at 5 seconds and se 1 foot at
8 seconds. 
.sun...n winds 5 to 10 kt with gusts up to 20 kt, diminishing to
around 5 kt in the afternoon. seas 2 to 4 ft. wave detail: n 3 ft
at 5 seconds and se 1 foot at 8 seconds. 
.sun night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
n 2 ft at 4 seconds and e 2 ft at 8 seconds. 
.mon...e winds 5 to 10 kt. seas 2 to 4 ft, building to 4 to 6 ft
in the afternoon. wave detail: e 3 ft at 10 seconds and e 2 ft at
6 seconds, becoming e 5 ft at 10 seconds and e 2 ft at 7 seconds.
.mon night through tue night...ne winds 20 to 25 kt with gusts up
to 30 kt. seas 6 to 9 ft. wave detail: e 9 ft at 11 seconds and
ne 8 ft at 6 seconds. 
.wed through thu night...n winds 20 to 25 kt with gusts up to
30 kt. seas 6 to 9 ft. wave detail: ne 9 ft at 8 seconds and nw
2 ft at 5 seconds.  

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 180504
cwfbox
expires:202610181800;;289664

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz254-181800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 am edt sun oct 18 2026

...small craft advisory in effect until 11 am edt this morning...
...gale watch in effect from monday evening through wednesday
morning...

.rest of tonight...n winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: ne 5 ft at 7 seconds and s 1 foot at
8 seconds. 
.sun...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: n 5 ft
at 7 seconds and ne 3 ft at 12 seconds. 
.sun night...e winds 10 to 15 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: e 4 ft at 8 seconds and e 3 ft at
11 seconds. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: e 7 ft at 10 seconds and e 4 ft at 6 seconds. 
.mon night and tue...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 7 to 10 ft. wave detail: e 10 ft at 11 seconds and n 7 ft at
5 seconds. a chance of showers. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
7 to 10 ft. wave detail: ne 10 ft at 10 seconds and n 7 ft at
7 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 40 kt. seas 8 to
11 ft. 
.wed night and thu...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 9 to 12 ft. a chance of showers. 
.thu night...n winds 25 to 30 kt with gusts up to 35 kt. seas
7 to 10 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 180504
cwfbox
expires:202610181800;;289665

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt sun oct 18 2026

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


anz255-181800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 am edt sun oct 18 2026

...small craft advisory in effect until 11 am edt this morning...
...gale watch in effect from monday evening through wednesday
morning...

.rest of tonight...n winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: n 5 ft at 5 seconds and ne 3 ft at
8 seconds. 
.sun...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: n 4 ft at 5 seconds and ne 4 ft at 10 seconds.
.sun night...ne winds 10 to 15 kt, becoming e 15 to 20 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: e 5 ft
at 9 seconds and e 4 ft at 6 seconds. 
.mon...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft, building to 5 to 8 ft in the afternoon. wave detail: e 6 ft
at 9 seconds and e 5 ft at 9 seconds, becoming e 8 ft at
10 seconds and n 4 ft at 5 seconds. a chance of showers in the
afternoon. 
.mon night and tue...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 7 to 10 ft. wave detail: e 10 ft at 12 seconds and n 8 ft at
6 seconds. a chance of showers. 
.tue night...ne winds 30 to 35 kt with gusts up to 40 kt. seas
7 to 10 ft. wave detail: e 10 ft at 10 seconds and n 8 ft at
6 seconds. 
.wed...ne winds 30 to 40 kt. seas 8 to 11 ft. 
.wed night and thu...ne winds 30 to 35 kt, becoming 25 to 35 kt.
seas 8 to 11 ft. a chance of showers. 
.thu night...n winds 25 to 35 kt with gusts up to 40 kt. seas
6 to 9 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.

$$