fzus51 kbox 300806
cwfbox
expires:202603302100;;526666

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am edt mon mar 30 2026

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


anz230-302100-
boston harbor-
406 am edt mon mar 30 2026

...small craft advisory in effect through this evening...

.today...sw winds 15 to 20 kt with gusts up to 25 kt. waves
around 2 ft. a slight chance of rain this afternoon. 
.tonight...sw winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. waves around 2 ft in the evening, then 1 foot or less.
a chance of rain after midnight. 
.tue...se winds 5 to 10 kt. waves 1 foot or less. rain likely,
mainly in the morning. 
.tue night...se winds 10 to 15 kt, becoming sw 20 to 25 kt after
midnight. waves around 2 ft. a chance of rain. 
.wed...sw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. waves around 2 ft. a chance of rain in the morning,
then rain likely in the afternoon. 
.wed night...n winds 10 to 15 kt, becoming ne after midnight.
gusts up to 20 kt. waves around 2 ft in the evening, then 1 foot
or less. a chance of rain. 
.thu through fri night...w winds 15 to 20 kt. waves 2 to 3 ft. a
chance of 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 300806
cwfbox
expires:202603302100;;526655

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 am edt mon mar 30 2026

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


anz250-302100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
406 am edt mon mar 30 2026

...small craft advisory in effect through this evening...

.today...sw winds 15 to 20 kt, increasing to 20 to 25 kt this
afternoon. gusts up to 30 kt. seas 3 to 5 ft. wave detail: s 4 ft
at 5 seconds and e 1 foot at 8 seconds. a slight chance of rain
this afternoon. 
.tonight...sw winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: s 4 ft
at 6 seconds and e 1 foot at 8 seconds. a chance of rain after
midnight. 
.tue...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and se 2 ft at
7 seconds. rain likely, mainly in the morning. 
.tue night...s winds 15 to 20 kt, becoming sw 20 to 25 kt after
midnight. gusts up to 30 kt. seas 2 to 4 ft, building to 4 to
6 ft after midnight. wave detail: s 3 ft at 5 seconds, becoming s
5 ft at 6 seconds and ne 2 ft at 6 seconds. a chance of rain
after midnight. 
.wed...sw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: s 5 ft
at 6 seconds and ne 2 ft at 6 seconds. a chance of rain. 
.wed night...nw winds 15 to 20 kt, becoming ne after midnight.
seas 3 to 5 ft. wave detail: n 3 ft at 4 seconds and se 3 ft at
7 seconds. a chance of rain. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 3 to 5 ft. a chance of 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.

$$