fzus51 kbox 201704
cwfbox
expires:202610210600;;893134

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

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


anz230-210600-
boston harbor-
103 pm edt tue oct 20 2026

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

.this afternoon...ne winds 15 to 20 kt with gusts up to 30 kt.
waves 2 to 3 ft. 
.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 2 to
3 ft. 
.wed night...ne winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. 
.thu and thu night...n winds 15 to 20 kt with gusts up to 25 kt.
waves around 2 ft. 
.fri through sat night...w winds 15 to 20 kt with gusts up to
25 kt. waves around 2 ft, except 3 to 5 ft at the outer harbor
entrance.  

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 201704
cwfbox
expires:202610210600;;893123

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

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


anz250-210600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt tue oct 20 2026

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

.this afternoon...ne winds 15 to 20 kt with gusts up to 30 kt.
seas 7 to 8 ft. wave detail: e 8 ft at 10 seconds and n 7 ft at
6 seconds. 
.tonight...ne winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
8 ft. wave detail: n 8 ft at 6 seconds and e 8 ft at 10 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 6 to
8 ft. wave detail: e 8 ft at 9 seconds and n 7 ft at 6 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
9 seconds. 
.thu and thu night...n winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 8 ft. wave detail: n 7 ft at 6 seconds and e 7 ft at
9 seconds. 
.fri and fri night...n winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt. seas 5 to
8 ft. wave detail: n 8 ft at 7 seconds and e 8 ft at 9 seconds. 
.sat...w winds 5 to 10 kt. seas 4 to 6 ft. 
.sat night...w winds 5 to 10 kt. seas 3 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.

$$