fzus51 kbox 272005
cwfbox
expires:202604280900;;629638

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt mon apr 27 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz230-280900-
boston harbor-
405 pm edt mon apr 27 2026

.tonight...e winds around 5 kt. waves 1 foot or less. 
.tue...ne winds 5 to 10 kt. waves 1 foot or less, then around
2 ft in the afternoon. 
.tue night...ne winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.wed...ne winds 5 to 10 kt. waves 1 foot or less, except 2 to
4 ft at the outer harbor entrance. 
.wed night...e winds around 10 kt. waves 1 foot or less, then
2 to 3 ft after midnight. at the outer harbor entrance, waves
2 to 4 ft. a chance of showers in the evening, then showers after
midnight. 
.thu and thu night...nw winds 15 to 20 kt. waves 2 to 3 ft.
showers.
.fri and fri night...w winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. waves around 2 ft. 
.sat and sat night...w winds 5 to 10 kt. waves 1 foot or less,
except 2 to 4 ft at the outer harbor entrance. a chance of
showers.  

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 272005
cwfbox
expires:202604280900;;629627

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt mon apr 27 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz250-280900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm edt mon apr 27 2026

...small craft advisory in effect from 2 am edt tuesday through
thursday morning...

.tonight...e winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 10 seconds and ne 2 ft at 4 seconds. patchy fog after
midnight with vsby 1 to 3 nm. 
.tue...ne winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
seas 3 to 5 ft. wave detail: e 5 ft at 9 seconds and ne 2 ft at
2 seconds. patchy fog in the morning with vsby 1 nm or less. 
.tue night...ne winds around 10 kt with gusts up to 20 kt. seas
4 to 6 ft. wave detail: e 6 ft at 10 seconds and ne 1 foot at
2 seconds. 
.wed...ne winds around 10 kt. seas 5 to 7 ft. wave detail: e 7 ft
at 10 seconds and n 1 foot at 3 seconds. a chance of showers. 
.wed night...e winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and
se 2 ft at 4 seconds. a chance of showers in the evening, then
showers likely after midnight. 
.thu and thu night...nw winds 15 to 20 kt. seas 5 to 7 ft. wave
detail: e 7 ft at 10 seconds and w 4 ft at 4 seconds. showers. a
chance of showers after midnight.
.fri through sat...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. 
.sat night...sw winds around 10 kt. seas 3 to 5 ft. a chance of
showers.  

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.

$$