fzus51 kbox 121707
cwfbox
expires:202603130600;;552337

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 pm edt thu mar 12 2026

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


anz230-130600-
boston harbor-
106 pm edt thu mar 12 2026

...small craft advisory in effect through late tonight...

.this afternoon...nw winds 10 to 15 kt with gusts up to 25 kt.
waves around 2 ft. rain and snow likely. 
.tonight...nw winds 10 to 15 kt with gusts up to 25 kt. waves
around 2 ft. a chance of snow in the evening. 
.fri...w winds around 10 kt, becoming s 15 to 20 kt in the
afternoon. waves around 2 ft. 
.fri night...s winds 15 to 20 kt with gusts up to 25 kt. waves
around 2 ft. a chance of rain. 
.sat and sat night...w winds 25 to 30 kt with gusts up to 35 kt.
waves around 2 ft. 
.sun...ne winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. 
.sun night...se winds 20 to 25 kt with gusts up to 30 kt. waves
2 to 3 ft. a chance of rain. 
.mon and mon night...s winds 25 to 30 kt with gusts up to 40 kt.
waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
rain. 

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 121707
cwfbox
expires:202603130600;;552326

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 pm edt thu mar 12 2026

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


anz250-130600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
106 pm edt thu mar 12 2026

...small craft advisory in effect through friday morning...

.this afternoon...nw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: w 3 ft at 4 seconds and se 3 ft at
8 seconds. rain likely. 
.tonight...nw winds 20 to 25 kt. seas 4 to 6 ft. wave detail: nw
5 ft at 5 seconds and se 3 ft at 8 seconds. a chance of rain and
snow in the evening. 
.fri...w winds 15 to 20 kt, becoming sw in the afternoon. gusts
up to 25 kt. seas 4 to 6 ft. wave detail: w 5 ft at 4 seconds and
se 3 ft at 9 seconds. 
.fri night...s winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: s 5 ft at 5 seconds and se 2 ft at
10 seconds. a chance of rain after midnight. 
.sat...w winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: sw 5 ft at 6 seconds and se 3 ft at
10 seconds. a chance of rain in the morning. 
.sat night...w winds 20 to 25 kt with gusts up to 35 kt. seas
4 to 6 ft. wave detail: w 5 ft at 5 seconds and s 2 ft at
7 seconds. 
.sun...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. 
.sun night...se winds 20 to 25 kt with gusts up to 35 kt. seas
3 to 5 ft. a chance of rain. 
.mon...s winds 25 to 35 kt with gusts up to 45 kt. seas 7 to
10 ft. rain.
.mon night...s winds 25 to 30 kt with gusts up to 40 kt. seas
8 to 11 ft. rain. 

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.

$$