fzus51 kbox 202004
cwfbox
expires:202610210900;;902082

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz231-210900-
cape cod bay-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 20 to 25 kt with gusts up to 40 kt. seas 4 to
6 ft. wave detail: e 6 ft at 10 seconds and n 5 ft at 5 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: e 6 ft at 9 seconds and n 5 ft at 5 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 35 kt. seas
3 to 5 ft. wave detail: n 5 ft at 5 seconds and e 5 ft at
10 seconds. a chance of showers. 
.thu...n winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. seas 3 to 5 ft. wave detail: n 5 ft at 5 seconds and e
5 ft at 10 seconds. 
.thu night and fri...n winds 25 to 30 kt with gusts up to 35 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 6 seconds and e 5 ft at
9 seconds. 
.fri night...n winds 10 to 15 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: n 5 ft at 7 seconds and e 2 ft at
13 seconds. 
.sat and sat night...nw winds 5 to 10 kt, becoming w. seas 2 to
4 ft. 
.sun and sun 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 202004
cwfbox
expires:202610210900;;902086

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz232-210900-
nantucket sound-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 20 to 25 kt with gusts up to 40 kt. seas 5 to
7 ft. wave detail: n 5 ft at 5 seconds and e 4 ft at 10 seconds. 
.wed...ne winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 5 to 7 ft. wave detail: nw
6 ft at 8 seconds and ne 5 ft at 5 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 35 kt. seas
4 to 6 ft. wave detail: n 6 ft at 6 seconds and e 4 ft at
10 seconds. a chance of showers. 
.thu...n winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. seas 4 to 6 ft. wave detail: n 5 ft at 5 seconds and e
4 ft at 10 seconds. 
.thu night and fri...n winds 25 to 30 kt. seas 4 to 6 ft. wave
detail: n 5 ft at 5 seconds and e 3 ft at 9 seconds. 
.fri night...n winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. seas 3 to 5 ft. wave
detail: n 4 ft at 4 seconds and e 2 ft at 10 seconds. 
.sat through sun night...sw winds 10 to 15 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 202004
cwfbox
expires:202610210900;;902087

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz233-210900-
vineyard sound-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: n 5 ft at 5 seconds and se 2 ft at 10 seconds.
.wed...ne winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: n 4 ft at 8 seconds and ne 3 ft at 4 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: n 5 ft at 5 seconds and se 2 ft at
10 seconds. a chance of showers. 
.thu...n winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. seas 3 to 5 ft. wave detail: n 5 ft at 5 seconds and
se 2 ft at 10 seconds. 
.thu night through fri night...n winds 20 to 25 kt. seas 2 to
4 ft. wave detail: n 4 ft at 4 seconds and se 2 ft at 10 seconds.
.sat through sun night...sw winds 5 to 10 kt. seas around 2 ft.
wave detail: sw 2 ft at 4 seconds and e 2 ft at 6 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 202004
cwfbox
expires:202610210900;;902088

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz234-210900-
buzzards bay-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: n 5 ft at 5 seconds and e 2 ft at 10 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: n 4 ft at 7 seconds and ne 3 ft at 4 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: n 5 ft at 5 seconds and e 2 ft at
10 seconds. 
.thu...n winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft, subsiding to 2 to 3 ft in the afternoon. wave detail: n
5 ft at 5 seconds and e 1 foot at 10 seconds, becoming n 3 ft at
4 seconds and e 2 ft at 10 seconds.
.thu night through fri night...n winds 20 to 25 kt. seas 2 to
3 ft. wave detail: n 3 ft at 4 seconds and se 1 foot at
10 seconds. 
.sat through sun night...sw winds 5 to 10 kt. seas around 2 ft.
wave detail: n 1 foot at 2 seconds and e 1 foot at 9 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 202004
cwfbox
expires:202610210900;;902089

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz235-210900-
rhode island sound-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. seas 5 to 7 ft. wave detail: n 5 ft at 5 seconds and e
5 ft at 10 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: n 5 ft at 5 seconds and se 5 ft at 10 seconds.
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. wave detail: n 5 ft at 5 seconds and se 5 ft at
11 seconds. 
.thu...n winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: n 6 ft at 6 seconds and se 5 ft at 10 seconds.
.thu night and fri...n winds 20 to 25 kt. seas 3 to 5 ft. wave
detail: n 4 ft at 4 seconds and se 3 ft at 10 seconds. 
.fri night...n winds 10 to 15 kt. seas 2 to 4 ft. wave detail: n
2 ft at 4 seconds and se 1 foot at 10 seconds. 
.sat through sun 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 202004
cwfbox
expires:202610210900;;902092

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz236-210900-
narragansett bay-
404 pm edt tue oct 20 2026

...small craft advisory in effect through late wednesday night...

.tonight...ne winds 15 to 20 kt with gusts up to 30 kt. waves
2 to 3 ft. 
.wed...ne winds 15 to 20 kt with gusts up to 30 kt. waves around
3 ft. 
.wed night...n winds 15 to 20 kt with gusts up to 30 kt. waves
around 3 ft. 
.thu...n winds 15 to 20 kt with gusts up to 30 kt, diminishing to
10 to 15 kt with gusts up to 20 kt in the afternoon. waves 2 to
3 ft. 
.thu night through fri night...n winds 15 to 20 kt. waves 2 to
3 ft. 
.sat through sun night...sw 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 202004
cwfbox
expires:202610210900;;902080

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz250-210900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt tue oct 20 2026

...small craft advisory in effect through thursday morning...

.tonight...ne winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
8 ft. wave detail: ne 8 ft at 8 seconds and nw 2 ft at 5 seconds.
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 6 to
8 ft. wave detail: ne 8 ft at 8 seconds and nw 2 ft at 5 seconds.
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 7 ft. wave detail: n 7 ft at 6 seconds and e 7 ft at
10 seconds. 
.thu...n winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: ne
7 ft at 9 seconds and e 7 ft at 10 seconds. 
.thu night through fri night...n winds 20 to 25 kt with gusts up
to 30 kt. seas 5 to 8 ft. wave detail: ne 8 ft at 15 seconds and
e 7 ft at 9 seconds. 
.sat...w winds 5 to 10 kt. seas 4 to 6 ft. wave detail: ne 6 ft
at 9 seconds and e 5 ft at 9 seconds. 
.sat night through sun 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 202004
cwfbox
expires:202610210900;;902083

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz254-210900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

.tonight...ne winds 25 to 30 kt with gusts up to 40 kt. seas 7 to
10 ft. wave detail: e 10 ft at 10 seconds and ne 7 ft at
7 seconds. 
.wed...ne winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 8 to 11 ft. wave detail: e
11 ft at 10 seconds and ne 7 ft at 8 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 35 kt. seas
7 to 10 ft. wave detail: e 10 ft at 10 seconds and n 5 ft at
5 seconds. a chance of showers. 
.thu...n winds 25 to 30 kt with gusts up to 40 kt. seas 7 to
10 ft. wave detail: e 10 ft at 10 seconds and ne 8 ft at
8 seconds. a chance of showers in the morning. 
.thu night and fri...n winds 25 to 30 kt with gusts up to 35 kt.
seas 7 to 10 ft. wave detail: ne 10 ft at 9 seconds and e 7 ft at
10 seconds. 
.fri night...n winds 20 to 25 kt, diminishing to 10 to 15 kt
after midnight. seas 6 to 9 ft. wave detail: ne 9 ft at 9 seconds
and e 8 ft at 9 seconds. 
.sat...nw winds 10 to 15 kt. seas 5 to 8 ft. 
.sat night and sun...w winds 5 to 10 kt. seas 4 to 6 ft. 
.sun 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 202004
cwfbox
expires:202610210900;;902084

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt tue oct 20 2026

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


anz255-210900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 pm edt tue oct 20 2026

...gale warning in effect through thursday morning...

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

$$