fzus51 kbox 180304
cwfbox
expires:202512181600;;773266

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm est wed dec 17 2025

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


anz230-181600-
boston harbor-
1004 pm est wed dec 17 2025

...gale watch in effect from friday morning through saturday
morning...

.overnight...w winds 15 to 20 kt, diminishing to 10 to 15 kt.
waves around 2 ft. 
.thu...sw winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. waves 1 foot or less, then around 2 ft
in the afternoon. 
.thu night...s winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 30 kt. waves around 2 ft. patchy fog. rain
likely after midnight with vsby 1 to 3 nm. 
.fri...s winds 25 to 30 kt, becoming sw 20 to 25 kt in the
afternoon. gusts up to 40 kt. waves around 2 ft. rain. vsby 1 to
3 nm. 
.fri night...w winds 25 to 30 kt with gusts up to 40 kt. waves
around 2 ft. a chance of rain in the evening. 
.sat and sat night...sw winds 20 to 25 kt with gusts up to 30 kt.
waves around 2 ft. 
.sun through mon 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 180304
cwfbox
expires:202512181600;;773255

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm est wed dec 17 2025

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


anz250-181600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 pm est wed dec 17 2025

...gale warning in effect until 1 am est thursday...
...gale watch in effect from late thursday night through saturday
morning...

.overnight...w winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: w 5 ft at 5 seconds and se 1 foot at
10 seconds. 
.thu...sw winds 5 to 10 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: s 3 ft at
4 seconds and se 1 foot at 10 seconds. 
.thu night...s winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 35 kt. seas 4 to 6 ft. wave detail: s 6 ft
at 6 seconds and se 1 foot at 10 seconds. patchy fog after
midnight. a chance of rain after midnight with vsby 1 nm or less.
.fri...s winds 25 to 35 kt with gusts up to 50 kt. seas 7 to
10 ft. wave detail: se 9 ft at 11 seconds and s 7 ft at
6 seconds. rain. vsby 1 nm or less, increasing to 1 to 3 nm in
the afternoon. 
.fri night...w winds around 30 kt with gusts up to 40 kt. seas
7 to 10 ft. wave detail: w 9 ft at 6 seconds and se 8 ft at
10 seconds. a chance of rain in the evening with vsby 1 to 3 nm. 
.sat...w winds 25 to 30 kt with gusts up to 35 kt, diminishing to
around 15 kt with gusts up to 20 kt in the afternoon. seas 6 to
9 ft, subsiding to 5 to 7 ft in the afternoon. wave detail: w
8 ft at 6 seconds and se 5 ft at 11 seconds, becoming w 5 ft at
6 seconds and se 4 ft at 11 seconds. 
.sat night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. 
.sun...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of rain. 
.sun night...w winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 ft. 
.mon...nw winds 25 to 30 kt. seas 5 to 7 ft. 
.mon night...nw winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 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.

$$