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coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

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


anz230-301600-
boston harbor-
1006 pm est mon dec 29 2025

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

.overnight...w winds 20 to 25 kt with gusts up to 30 kt,
increasing to 25 to 30 kt with gusts up to 40 kt. waves around
2 ft. 
.tue...w winds 25 to 30 kt with gusts up to 45 kt. waves around
2 ft. 
.tue night...w winds 20 to 25 kt with gusts up to 35 kt. waves
around 2 ft. 
.wed...sw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves around 2 ft. 
.wed night and thu...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a chance of snow. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves around 2 ft. 
.fri through sat night...nw winds 10 to 15 kt with 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 300306
cwfbox
expires:202512301600;;470666

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

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


anz250-301600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 25 to 30 kt, increasing to 30 to 35 kt. seas
4 to 6 ft, building to 5 to 8 ft. wave detail: w 5 ft at
5 seconds and se 2 ft at 6 seconds, becoming sw 8 ft at 7 seconds
and se 1 foot at 6 seconds. 
.tue...w winds 30 to 35 kt with gusts up to 45 kt. seas 6 to
9 ft. wave detail: w 8 ft at 7 seconds and se 1 foot at
11 seconds. light freezing spray. 
.tue night...w winds 25 to 30 kt. gusts up to 45 kt in the
evening. seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight.
wave detail: w 8 ft at 7 seconds and se 1 foot at 12 seconds,
becoming sw 7 ft at 7 seconds and se 1 foot at 12 seconds. light
freezing spray. 
.wed...w winds 20 to 25 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: w 6 ft
at 5 seconds and s 2 ft at 8 seconds. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: w 4 ft at 4 seconds and s 1 foot at
8 seconds. a chance of snow. vsby 1 to 3 nm after midnight. 
.thu...nw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
5 ft. wave detail: w 4 ft at 5 seconds and e 2 ft at 13 seconds.
a chance of light freezing spray. a chance of snow. vsby 1 to
3 nm in the morning. 
.thu night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of light freezing spray. 
.fri through sat night...nw winds 15 to 20 kt. seas 2 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.

$$