fzus51 kbox 211703
cwfbox
expires:202609220600;;826036

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt mon sep 21 2026

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


anz230-220600-
boston harbor-
103 pm edt mon sep 21 2026

.this afternoon...ne winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.tonight...ne winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. waves 1 foot or less, then 2 to 3 ft after midnight. 
.tue...ne winds 15 to 20 kt. waves 2 to 3 ft. 
.tue night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. waves 2 to 3 ft. 
.wed and wed night...ne winds 15 to 20 kt with gusts up to 30 kt.
waves 2 to 3 ft. 
.thu and thu night...ne winds 20 to 25 kt with gusts up to 30 kt.
waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. 
.fri...ne winds 25 to 30 kt with gusts up to 40 kt. waves 2 to
3 ft, except 4 to 6 ft at the outer harbor entrance. a chance of
showers. 
.fri night...ne winds 25 to 30 kt with gusts up to 40 kt. waves
2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. showers
likely.  

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 211703
cwfbox
expires:202609220600;;826025

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt mon sep 21 2026

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


anz250-220600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt mon sep 21 2026

.this afternoon...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: ne 4 ft at 5 seconds and w 1 foot at
7 seconds. 
.tonight...ne winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. seas 2 to 4 ft. wave detail: ne
4 ft at 5 seconds and se 2 ft at 9 seconds. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
5 ft. wave detail: n 5 ft at 5 seconds and se 2 ft at 12 seconds.
.tue night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 4 to 5 ft. wave detail: e
5 ft at 7 seconds and se 2 ft at 10 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
8 ft. wave detail: e 8 ft at 9 seconds and n 1 foot at 4 seconds.
.wed night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 7 to 9 ft. wave detail: e
8 ft at 9 seconds. 
.thu and thu night...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 7 to 10 ft. 
.fri...ne winds 25 to 30 kt with gusts up to 45 kt. seas 9 to
12 ft. a chance of showers. 
.fri night...ne winds 25 to 35 kt with gusts up to 45 kt. seas
10 to 13 ft. showers likely.  

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.

$$