fzus51 kbox 130204
cwfbox
expires:202510131500;;037555

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun oct 12 2025

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


anz230-131500-
boston harbor-
1004 pm edt sun oct 12 2025

...gale warning in effect through monday evening...

.overnight...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. rain.
vsby 1 to 3 nm. 
.mon...ne winds 25 to 30 kt with gusts up to 40 kt. waves 2 to
3 ft, except 5 to 7 ft at the outer harbor entrance. rain. vsby
1 nm or less. 
.mon night...ne winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. waves 2 to 3 ft, except 5 to 7 ft at the outer
harbor entrance. rain. vsby 1 to 3 nm. 
.tue...ne winds 20 to 25 kt, becoming n 15 to 20 kt in the
afternoon. waves 2 to 3 ft, except 4 to 6 ft at the outer harbor
entrance. rain in the morning, then showers likely in the
afternoon. vsby 1 to 3 nm. 
.tue night...n winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves around 2 ft in
the evening, then 1 foot or less. at the outer harbor entrance,
waves 3 to 5 ft. a chance of showers. 
.wed and wed night...nw winds 15 to 20 kt with gusts up to 25 kt.
waves around 2 ft. 
.thu through fri night...nw winds 20 to 25 kt with gusts up to
30 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 130204
cwfbox
expires:202510131500;;037544

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun oct 12 2025

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


anz250-131500-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 pm edt sun oct 12 2025

...gale warning in effect through late monday night...

.overnight...ne winds 25 to 30 kt with gusts up to 40 kt. seas
9 to 12 ft, building to 11 to 15 ft. wave detail: ne 8 ft at
7 seconds and se 8 ft at 12 seconds, becoming e 14 ft at
11 seconds and ne 8 ft at 7 seconds. rain. vsby 1 to 3 nm. 
.mon...ne winds 30 to 35 kt with gusts up to 40 kt. seas 12 to
16 ft. wave detail: e 16 ft at 12 seconds and ne 9 ft at
8 seconds. rain. vsby 1 nm or less, increasing to 1 to 3 nm in
the afternoon. 
.mon night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
11 to 15 ft. wave detail: e 15 ft at 12 seconds and ne 7 ft at
9 seconds. rain. vsby 1 to 3 nm, decreasing to 1 nm or less after
midnight. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 9 to
12 ft. wave detail: e 11 ft at 11 seconds and ne 6 ft at
6 seconds. rain in the morning, then showers in the afternoon.
vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon. 
.tue night...n winds 15 to 20 kt, diminishing to around 10 kt
after midnight. gusts up to 25 kt. seas 7 to 9 ft, subsiding to
5 to 7 ft after midnight. wave detail: e 8 ft at 11 seconds and
ne 4 ft at 6 seconds, becoming se 7 ft at 10 seconds and ne 2 ft
at 5 seconds. showers likely, mainly in the evening with vsby
1 to 3 nm. 
.wed...n winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 5 to
6 ft. wave detail: se 6 ft at 10 seconds and n 3 ft at 4 seconds.
.wed night...n winds 20 to 25 kt with gusts up to 35 kt. seas
5 to 8 ft. a chance of showers after midnight. 
.thu...n winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft. a chance of showers. 
.thu night and fri...n winds 25 to 30 kt with gusts up to 40 kt.
seas 6 to 9 ft. 
.fri night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 7 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.

$$