fzus51 kbox 171704
cwfbox
expires:202609180600;;609391

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu sep 17 2026

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


anz230-180600-
boston harbor-
103 pm edt thu sep 17 2026

.this afternoon...se winds 5 to 10 kt. waves 1 foot or less. 
.tonight...s winds 5 to 10 kt, becoming sw after midnight. waves
1 foot or less. patchy fog. showers likely. 
.fri...nw winds 5 to 10 kt. waves around 2 ft. 
.fri night...n winds 10 to 15 kt. waves around 2 ft. 
.sat...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.sat night...se winds 5 to 10 kt. waves 1 foot or less. 
.sun and sun night...se winds 5 to 10 kt with gusts up to 20 kt,
becoming n 10 to 15 kt. waves around 2 ft. showers likely. 
.mon and mon night...ne winds 10 to 15 kt. 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 171704
cwfbox
expires:202609180600;;609380

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu sep 17 2026

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


anz250-180600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt thu sep 17 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: e 2 ft at 8 seconds and s 1 foot at 3 seconds. patchy
fog. vsby 1 nm or less. 
.tonight...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and e 2 ft at 8 seconds.
patchy fog. a chance of showers in the evening, then showers
likely after midnight. vsby 1 to 3 nm. 
.fri...nw winds 5 to 10 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: w 2 ft at 4 seconds and e 2 ft at
8 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...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 6 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: nw 4 ft
at 6 seconds. 
.sat night...se winds around 5 kt, becoming s after midnight.
seas 2 to 3 ft. wave detail: ne 3 ft at 7 seconds and nw 1 foot
at 4 seconds. 
.sun and sun night...se winds 10 to 15 kt, becoming ne. gusts up
to 20 kt. seas 2 to 3 ft. showers likely. 
.mon and mon night...n winds 15 to 20 kt, becoming ne 10 to
15 kt. gusts up to 25 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.

$$