fzus51 kbox 182303
cwfbox
expires:202609191200;;679575

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt fri sep 18 2026

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


anz230-191200-
boston harbor-
703 pm edt fri sep 18 2026

.tonight...n winds 10 to 15 kt with gusts up to 25 kt. waves
around 2 ft. 
.sat...n winds around 10 kt with gusts up to 20 kt, becoming e in
the afternoon. waves around 2 ft in the morning, then 1 foot or
less. 
.sat night...se winds 5 to 10 kt. waves 1 foot or less. 
.sun...se winds 5 to 10 kt. waves 1 foot or less. showers likely
in the afternoon. 
.sun night...se winds 5 to 10 kt, becoming ne 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight.
showers.
.mon...ne winds 10 to 15 kt with gusts up to 25 kt. waves around
2 ft. a chance of showers in the morning. 
.mon night...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 through wed night...ne winds 20 to 25 kt with gusts up to
30 kt. waves 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 182303
cwfbox
expires:202609191200;;679564

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt fri sep 18 2026

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


anz250-191200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 pm edt fri sep 18 2026

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

.tonight...n winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: n 4 ft
at 5 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 25 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: ne 4 ft
at 6 seconds and w 2 ft at 5 seconds. 
.sat night...se winds around 5 kt. seas 2 to 3 ft. wave detail:
ne 3 ft at 7 seconds and nw 1 foot at 4 seconds. 
.sun...s winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 3 seconds and e 2 ft at 7 seconds. a chance of showers in the
afternoon. 
.sun night...se winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas around 2 ft. wave detail: e 2 ft at 6 seconds and
s 1 foot at 3 seconds. showers.
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 3 seconds and ne 3 ft at 5 seconds.
a chance of showers in the morning. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. 
.tue night...ne winds 15 to 20 kt with gusts up to 30 kt. seas
5 to 7 ft. 
.wed and wed night...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 6 to 9 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.

$$