fzus51 kbox 310204
cwfbox
expires:202510311500;;588566

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt thu oct 30 2025

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


anz230-311500-
boston harbor-
1004 pm edt thu oct 30 2025

...gale warning in effect from friday afternoon through saturday
morning...

.overnight...e winds 20 to 25 kt with gusts up to 35 kt. waves
2 to 3 ft. patchy fog. showers with a slight chance of tstms.
vsby 1 nm or less. 
.fri...sw winds 15 to 20 kt with gusts up to 25 kt, increasing to
20 to 25 kt with gusts up to 35 kt in the afternoon. waves 2 to
3 ft, except 3 to 5 ft at the outer harbor entrance. a chance of
showers in the morning with vsby 1 to 3 nm. 
.fri night...w winds 25 to 30 kt with gusts up to 40 kt. waves
around 2 ft, except 3 to 5 ft at the outer harbor entrance. 
.sat...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. waves around 2 ft. 
.sat night through sun night...w winds 10 to 15 kt with gusts up
to 20 kt. waves around 2 ft. 
.mon...sw winds 10 to 15 kt. waves around 2 ft. 
.mon night and tue...w winds 15 to 20 kt with gusts up to 25 kt.
waves around 2 ft. a chance of showers. 
.tue night...w winds 15 to 20 kt with gusts up to 25 kt. waves
around 2 ft.  

winds and waves higher in and near tstms.

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 310204
cwfbox
expires:202510311500;;588555

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt thu oct 30 2025

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


anz250-311500-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 pm edt thu oct 30 2025

...storm warning in effect from friday afternoon through late
friday night...

.overnight...e winds 20 to 25 kt with gusts up to 40 kt. seas
6 to 9 ft. wave detail: e 9 ft at 9 seconds. patchy fog. showers.
a slight chance of tstms. vsby 1 nm or less. 
.fri...s winds 20 to 25 kt with gusts up to 30 kt, becoming sw
25 to 30 kt with gusts up to 40 kt in the afternoon. seas 7 to
9 ft. wave detail: e 9 ft at 10 seconds and sw 6 ft at 5 seconds.
patchy fog in the morning. a chance of showers in the morning
with vsby 1 nm or less. 
.fri night...w winds 30 to 35 kt, becoming 25 to 35 kt after
midnight. gusts up to 50 kt. seas 6 to 9 ft. wave detail: w 9 ft
at 7 seconds and e 8 ft at 10 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 40 kt, diminishing to
20 to 25 kt with gusts up to 30 kt in the afternoon. seas 5 to
8 ft. wave detail: w 8 ft at 6 seconds and e 3 ft at 11 seconds. 
.sat night...nw winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 5 to 7 ft, subsiding to
3 to 5 ft after midnight. wave detail: nw 5 ft at 5 seconds and
se 3 ft at 11 seconds, becoming nw 4 ft at 5 seconds and e 2 ft
at 11 seconds. 
.sun...nw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: nw 3 ft
at 4 seconds and e 2 ft at 10 seconds. 
.sun night...w winds around 10 kt. seas around 2 ft. 
.mon...sw winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. 
.mon night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
2 to 4 ft. a chance of showers. 
.tue...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of showers. 
.tue night...w winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 5 ft.  

winds and seas higher in and near tstms.

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.

$$