fzus51 kbox 201703
cwfbox
expires:202609210600;;772257

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

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


anz230-210600-
boston harbor-
103 pm edt sun sep 20 2026

.this afternoon...se winds 5 to 10 kt. waves around 2 ft. patchy
fog. rain.
.tonight...se winds 5 to 10 kt, becoming ne 10 to 15 kt with
gusts up to 20 kt after midnight. waves around 2 ft. patchy fog.
rain, mainly in the evening. vsby 1 to 3 nm, decreasing to 1 nm
or less after midnight. 
.mon...ne winds 10 to 15 kt with gusts up to 25 kt. waves 2 to
3 ft. patchy fog in the morning. 
.mon night...ne winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. waves 1 foot or less, then 2 to
3 ft after midnight. 
.tue and tue night...ne winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.wed through thu...ne winds 20 to 25 kt with gusts up to 35 kt.
waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. 
.thu night...ne winds 25 to 30 kt with gusts up to 35 kt. waves
2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. 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 201703
cwfbox
expires:202609210600;;772246

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

.this afternoon...se winds around 10 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 4 seconds and se 1 foot at 10 seconds. patchy
fog. rain.
.tonight...se winds around 10 kt, becoming e with gusts up to
20 kt after midnight. seas 2 to 3 ft. wave detail: s 2 ft at
4 seconds and se 1 foot at 10 seconds. patchy fog. rain. vsby
1 to 3 nm, decreasing to 1 nm or less after midnight. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: ne 4 ft at 4 seconds and se 2 ft at 9 seconds.
patchy fog in the morning. a chance of rain in the morning with
vsby 1 to 3 nm. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. seas 2 to 4 ft. wave detail: ne 4 ft at 5 seconds
and se 2 ft at 9 seconds. 
.tue and tue night...ne winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: e 5 ft at 7 seconds and e 5 ft at
14 seconds. 
.wed...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. wave detail: e 7 ft at 9 seconds. 
.wed night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 9 ft. 
.thu...ne winds 25 to 30 kt with gusts up to 40 kt. seas 8 to
11 ft. 
.thu night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
10 to 14 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.

$$