fzus51 kbox 171405
cwfbox
expires:202604180300;;523953

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt fri apr 17 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz230-180300-
boston harbor-
1005 am edt fri apr 17 2026

.this afternoon...ne winds 5 to 10 kt, increasing to 10 to 15 kt.
waves 1 foot or less, then around 2 ft. patchy fog. a slight
chance of rain. vsby 1 to 3 nm, decreasing to 1 nm or less. 
.tonight...ne winds 5 to 10 kt. waves 1 foot or less. patchy fog.
vsby 1 to 3 nm. 
.sat...ne winds around 10 kt. waves 1 foot or less, then around
2 ft in the afternoon. patchy fog in the morning with vsby 1 to
3 nm. 
.sat night...e winds 5 to 10 kt, becoming se after midnight.
waves 1 foot or less. patchy fog in the evening. 
.sun and sun night...w winds 15 to 20 kt. waves around 2 ft.
showers.
.mon through tue night...s winds 10 to 15 kt with gusts up to
20 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 171405
cwfbox
expires:202604180300;;523942

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt fri apr 17 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-180300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1005 am edt fri apr 17 2026

.this afternoon...n winds 5 to 10 kt, becoming ne 10 to 15 kt.
seas around 2 ft. wave detail: ne 2 ft at 5 seconds and se 2 ft
at 8 seconds. patchy fog. a slight chance of rain. vsby 1 nm or
less. 
.tonight...ne winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. seas around 2 ft. wave detail: n 2 ft at 4 seconds and
se 2 ft at 8 seconds. patchy fog. vsby 1 to 3 nm. 
.sat...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: ne 3 ft at 4 seconds and se 2 ft at
8 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
2 to 4 ft. wave detail: e 4 ft at 7 seconds and n 1 foot at
3 seconds. patchy fog in the evening. 
.sun...s winds 10 to 15 kt, becoming sw with gusts up to 20 kt in
the afternoon. seas 3 to 4 ft. wave detail: se 4 ft at 7 seconds
and sw 2 ft at 3 seconds. a chance of showers in the morning,
then showers in the afternoon. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 5 ft. wave detail: nw 4 ft at 4 seconds and e 3 ft at
8 seconds. showers likely, mainly in the evening. 
.mon and mon night...nw winds 15 to 20 kt. seas 3 to 5 ft. 
.tue and tue night...n winds 10 to 15 kt, becoming s 15 to 20 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.

$$