fzus51 kbox 182004
cwfbox
expires:202610190900;;326355

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt sun oct 18 2026

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


anz230-190900-
boston harbor-
404 pm edt sun oct 18 2026

.tonight...se winds 5 to 10 kt, becoming s after midnight. waves
1 foot or less. 
.mon...ne winds 5 to 10 kt. waves 1 foot or less. 
.mon night...ne winds 10 to 15 kt. gusts up to 20 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight. 
.tue...n winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft, except 3 to 5 ft at the outer harbor entrance. 
.tue night through wed night...n 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. 
.thu through fri night...n winds 15 to 20 kt with gusts up to
25 kt. waves around 2 ft, except 3 to 5 ft at the outer harbor
entrance.  

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 182004
cwfbox
expires:202610190900;;326344

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt sun oct 18 2026

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


anz250-190900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt sun oct 18 2026

.tonight...se winds 5 to 10 kt. seas around 2 ft. wave detail: ne
2 ft at 5 seconds and nw 1 foot at 3 seconds. 
.mon...e winds 5 to 10 kt. seas 2 to 3 ft, building to 3 to 5 ft
in the afternoon. wave detail: e 3 ft at 9 seconds and e 2 ft at
6 seconds, becoming e 4 ft at 9 seconds and e 3 ft at 6 seconds. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 4 to 6 ft, building to
5 to 8 ft after midnight. wave detail: se 6 ft at 10 seconds and
e 2 ft at 7 seconds, becoming e 8 ft at 11 seconds and n 3 ft at
4 seconds.
.tue...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 6 to 9 ft. wave detail: e 9 ft
at 10 seconds and ne 6 ft at 7 seconds. 
.tue night through wed night...ne winds 20 to 25 kt with gusts up
to 30 kt. seas 7 to 9 ft. wave detail: e 9 ft at 9 seconds and n
7 ft at 6 seconds. 
.thu through fri night...n winds 20 to 25 kt with gusts up to
30 kt. seas 5 to 8 ft. wave detail: n 8 ft at 6 seconds and e
8 ft at 10 seconds.  

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.

$$