fzus51 kbox 232003
cwfbox
expires:202609240900;;940869

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt wed sep 23 2026

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


anz230-240900-
boston harbor-
403 pm edt wed sep 23 2026

...small craft advisory in effect through friday morning...
...gale warning in effect from friday morning through saturday
evening...

.tonight...ne winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. 
.thu...ne winds 15 to 20 kt with gusts up to 30 kt. waves 2 to
3 ft. 
.thu night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. waves 2 to 3 ft, except 4 to
6 ft at the outer harbor entrance. 
.fri...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 45 kt. waves 2 to 3 ft. at the outer
harbor entrance, waves 4 to 6 ft, building to 5 to 8 ft in the
afternoon. a chance of rain in the afternoon. 
.fri night and sat...n winds 25 to 30 kt with gusts up to 45 kt.
waves 2 to 3 ft, except 6 to 9 ft at the outer harbor entrance.
rain.
.sat night...n winds 25 to 30 kt with gusts up to 40 kt. waves
around 2 ft, except 5 to 8 ft at the outer harbor entrance. rain
in the evening, then showers after midnight. 
.sun...n winds 25 to 30 kt with gusts up to 40 kt. waves 2 to
3 ft, except 5 to 7 ft at the outer harbor entrance. showers.
.sun night and mon...ne winds 25 to 30 kt with gusts up to 35 kt,
becoming n 15 to 20 kt with gusts up to 25 kt. waves 2 to 3 ft,
except 4 to 6 ft at the outer harbor entrance. showers.
.mon night...n winds 5 to 10 kt. waves around 2 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.

$$

fzus51 kbox 232003
cwfbox
expires:202609240900;;940858

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt wed sep 23 2026

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


anz250-240900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 pm edt wed sep 23 2026

...small craft advisory in effect through late thursday night...
...gale warning in effect from late thursday night through friday
morning...
...storm watch in effect from friday morning through saturday
evening...

.tonight...ne winds 15 to 20 kt with gusts up to 30 kt. seas 6 to
7 ft. wave detail: e 7 ft at 10 seconds and n 1 foot at
4 seconds. 
.thu...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 6 to 9 ft. wave detail: e 9 ft
at 10 seconds. 
.thu night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 35 kt. seas 7 to 9 ft, building to
8 to 11 ft after midnight. wave detail: e 9 ft at 11 seconds and
n 1 foot at 4 seconds, becoming e 11 ft at 11 seconds and ne 7 ft
at 10 seconds. 
.fri...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
15 ft, building to 13 to 18 ft in the afternoon. wave detail: e
13 ft at 12 seconds and n 8 ft at 6 seconds, becoming e 14 ft at
12 seconds and n 9 ft at 7 seconds. a chance of rain in the
afternoon. 
.fri night...ne winds 30 to 35 kt with gusts up to 50 kt. seas
16 to 20 ft. wave detail: e 17 ft at 11 seconds and ne 12 ft at
9 seconds. rain likely. 
.sat...n winds 30 to 35 kt with gusts up to 50 kt. seas 17 to
22 ft, subsiding to 16 to 20 ft in the afternoon. wave detail: ne
17 ft at 11 seconds and ne 11 ft at 11 seconds, becoming e 16 ft
at 11 seconds and ne 15 ft at 10 seconds. rain.
.sat night...n winds around 30 kt with gusts up to 45 kt. seas
14 to 18 ft. rain in the evening. showers after midnight. 
.sun...ne winds 25 to 30 kt with gusts up to 40 kt. seas 12 to
16 ft. showers.
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
9 to 12 ft. showers.
.mon...n winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
8 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
4 to 6 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.

$$