fzus51 kbox 250203
cwfbox
expires:202609251500;;007341

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz231-251500-
cape cod bay-
1003 pm edt thu sep 24 2026

...storm warning in effect from 8 am edt friday through saturday
evening...

.overnight...ne winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: n 4 ft at 4 seconds. 
.fri...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 45 kt. seas 5 to 7 ft. wave detail: n 6 ft
at 5 seconds. rain likely in the afternoon. 
.fri night...ne winds 25 to 30 kt with gusts up to 55 kt. seas
8 to 11 ft. wave detail: n 8 ft at 7 seconds. rain likely. 
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 8 to
11 ft. wave detail: n 8 ft at 7 seconds. rain.
.sat night...ne winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 50 kt. seas 8 to 11 ft, subsiding to
6 to 9 ft after midnight. wave detail: n 7 ft at 7 seconds,
becoming ne 7 ft at 7 seconds and n 4 ft at 8 seconds. rain.
.sun...ne winds 15 to 20 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: n 6 ft at 7 seconds. rain.
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 5 to 7 ft. rain in the evening. showers after midnight. 
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. showers likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of showers. 
.tue and tue night...n winds 10 to 15 kt with gusts up to 20 kt,
becoming nw around 5 kt. seas 2 to 3 ft.  

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 250203
cwfbox
expires:202609251500;;007345

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz232-251500-
nantucket sound-
1003 pm edt thu sep 24 2026

...storm warning in effect from 2 am edt friday through saturday
evening...

.overnight...ne winds 20 to 25 kt with gusts up to 35 kt. seas
5 to 7 ft. wave detail: e 5 ft at 7 seconds and n 2 ft at
4 seconds. 
.fri...ne winds 25 to 30 kt. gusts up to 40 kt, increasing to
50 kt in the afternoon. seas 5 to 8 ft. wave detail: n 7 ft at
6 seconds. a chance of rain in the morning, then rain likely in
the afternoon. 
.fri night...ne winds 30 to 35 kt with gusts up to 55 kt. seas
7 to 10 ft. wave detail: n 8 ft at 6 seconds. rain likely. 
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 6 to
9 ft. wave detail: n 8 ft at 7 seconds. rain.
.sat night and sun...ne winds 20 to 25 kt with gusts up to 45 kt.
seas 5 to 7 ft. wave detail: ne 6 ft at 8 seconds and n 4 ft at
7 seconds. rain.
.sun night...ne winds 25 to 30 kt with gusts up to 35 kt,
diminishing to 20 to 25 kt after midnight. seas 4 to 6 ft. wave
detail: e 5 ft at 6 seconds and sw 1 foot at 7 seconds. rain in
the evening. showers likely after midnight. 
.mon...ne winds 15 to 20 kt. seas 3 to 5 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. a chance of showers. 
.tue and tue night...nw winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. seas 2 to 3 ft.  

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 250203
cwfbox
expires:202609251500;;007346

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz233-251500-
vineyard sound-
1003 pm edt thu sep 24 2026

...storm warning in effect from 2 am edt friday through saturday
evening...

.overnight...ne winds 20 to 25 kt with gusts up to 35 kt. seas
4 to 6 ft. wave detail: ne 4 ft at 5 seconds. 
.fri...ne winds 25 to 30 kt. gusts up to 40 kt, increasing to
50 kt in the afternoon. seas 5 to 7 ft. wave detail: n 6 ft at
6 seconds. a chance of rain in the morning, then rain likely in
the afternoon. 
.fri night...ne winds 30 to 35 kt with gusts up to 55 kt. seas
5 to 8 ft. wave detail: n 7 ft at 6 seconds. rain likely. 
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 5 to
7 ft. wave detail: n 5 ft at 7 seconds. rain.
.sat night and sun...ne winds 25 to 30 kt with gusts up to 55 kt.
seas 4 to 6 ft. wave detail: n 5 ft at 6 seconds. rain.
.sun night...ne winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
seas 3 to 5 ft. wave detail: ne 4 ft at 5 seconds and nw 2 ft at
6 seconds. rain in the evening. showers likely after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 5 to 10 kt.
seas around 2 ft, then 1 foot or less.  

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 250203
cwfbox
expires:202609251500;;007347

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz234-251500-
buzzards bay-
1003 pm edt thu sep 24 2026

...storm warning in effect from 2 am edt friday through saturday
evening...

.overnight...ne winds 15 to 20 kt with gusts up to 35 kt. seas
3 to 5 ft. wave detail: ne 3 ft at 4 seconds. 
.fri...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 45 kt. seas 4 to 6 ft. wave detail: n 5 ft
at 5 seconds. a chance of rain in the morning, then rain likely
in the afternoon. 
.fri night...ne winds 25 to 30 kt with gusts up to 55 kt. seas
4 to 6 ft. wave detail: n 6 ft at 8 seconds and ne 5 ft at
5 seconds. rain likely. 
.sat...n winds 25 to 30 kt with gusts up to 55 kt. seas 4 to
6 ft. wave detail: ne 4 ft at 5 seconds and n 4 ft at 8 seconds.
rain.
.sat night and sun...ne winds 20 to 25 kt with gusts up to 50 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 7 seconds and ne 4 ft at
4 seconds. rain.
.sun night...ne winds 20 to 25 kt. gusts up to 35 kt in the
evening. seas 3 to 5 ft. wave detail: nw 5 ft at 7 seconds and ne
3 ft at 4 seconds. rain in the evening. showers after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.tue and tue night...nw winds around 10 kt, becoming w. seas
around 2 ft, then 1 foot or less.  

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 250203
cwfbox
expires:202609251500;;007348

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz235-251500-
rhode island sound-
1003 pm edt thu sep 24 2026

...storm warning in effect from 2 am edt friday through saturday
evening...

.overnight...ne winds 20 to 25 kt with gusts up to 35 kt. seas
5 to 7 ft. wave detail: ne 7 ft at 10 seconds and n 2 ft at
4 seconds. 
.fri...ne winds 25 to 35 kt. gusts up to 40 kt, increasing to
50 kt in the afternoon. seas 5 to 8 ft, building to 7 to 10 ft in
the afternoon. wave detail: ne 8 ft at 9 seconds and n 4 ft at
5 seconds, becoming ne 9 ft at 9 seconds and n 5 ft at 5 seconds.
a chance of rain in the morning, then rain likely in the
afternoon.
.fri night...ne winds 30 to 40 kt with gusts up to 55 kt. seas
8 to 11 ft. wave detail: ne 10 ft at 9 seconds and n 5 ft at
5 seconds. rain likely. 
.sat...n winds 25 to 35 kt with gusts up to 60 kt. seas 8 to
11 ft. wave detail: ne 9 ft at 8 seconds and n 4 ft at 7 seconds.
rain.
.sat night...n winds 25 to 30 kt, becoming ne 20 to 25 kt after
midnight. gusts up to 55 kt. seas 6 to 9 ft, subsiding to 5 to
7 ft after midnight. wave detail: n 8 ft at 6 seconds, becoming n
7 ft at 7 seconds. rain.
.sun...ne winds 20 to 25 kt with gusts up to 45 kt. seas 5 to
8 ft. wave detail: n 6 ft at 6 seconds. rain.
.sun night...ne winds 20 to 25 kt. gusts up to 40 kt in the
evening. seas 4 to 6 ft. rain in the evening. showers likely
after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 5 to 10 kt.
seas around 2 ft.  

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 250203
cwfbox
expires:202609251500;;007351

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz236-251500-
narragansett bay-
1003 pm edt thu sep 24 2026

...storm warning in effect from friday afternoon through saturday
evening...

.overnight...ne winds 15 to 20 kt with gusts up to 30 kt. waves
around 3 ft. 
.fri...ne winds 15 to 20 kt, becoming n 20 to 25 kt in the
afternoon. gusts up to 40 kt. waves around 3 ft, except 4 to 6 ft
at the bay entrance. a chance of rain in the afternoon. 
.fri night...n winds 25 to 30 kt with gusts up to 50 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. rain likely. 
.sat...n winds 20 to 25 kt with gusts up to 55 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. rain.
.sat night and sun...ne winds 20 to 25 kt with gusts up to 50 kt.
waves around 3 ft, except 4 to 6 ft at the bay entrance. rain.
.sun night...ne winds 15 to 20 kt. gusts up to 35 kt, decreasing
to 25 kt after midnight. waves 2 to 3 ft. rain in the evening.
showers after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft. a chance of showers. 
.tue and tue night...nw winds 5 to 10 kt, becoming w. waves
1 foot or less.  

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 250203
cwfbox
expires:202609251500;;007339

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz250-251500-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 pm edt thu sep 24 2026

...storm warning in effect from friday morning through saturday
evening...

.overnight...ne winds 15 to 20 kt, increasing to 20 to 25 kt.
gusts up to 30 kt. seas 8 to 11 ft. wave detail: e 10 ft at
11 seconds and n 1 foot at 4 seconds. 
.fri...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 40 kt. seas 10 to 14 ft. wave detail: e
13 ft at 11 seconds and n 2 ft at 4 seconds. a chance of rain in
the afternoon. 
.fri night...ne winds 25 to 35 kt, becoming 30 to 35 kt after
midnight. gusts up to 60 kt. seas 13 to 18 ft, building to 16 to
21 ft after midnight. wave detail: e 15 ft at 11 seconds and nw
3 ft at 6 seconds, becoming e 16 ft at 11 seconds and nw 3 ft at
6 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.sat...ne winds 30 to 35 kt with gusts up to 60 kt. seas 18 to
23 ft. wave detail: e 17 ft at 11 seconds and nw 3 ft at
7 seconds. rain.
.sat night...ne winds 25 to 30 kt with gusts up to 50 kt. seas
17 to 22 ft, subsiding to 14 to 19 ft after midnight. wave
detail: ne 16 ft at 11 seconds and nw 3 ft at 7 seconds, becoming
ne 14 ft at 10 seconds and nw 3 ft at 7 seconds. rain.
.sun...ne winds 25 to 30 kt with gusts up to 50 kt. seas 12 to
16 ft, subsiding to 9 to 13 ft in the afternoon. wave detail: ne
12 ft at 9 seconds and nw 2 ft at 7 seconds, becoming ne 10 ft at
8 seconds and nw 2 ft at 7 seconds. rain.
.sun night...ne winds 25 to 30 kt with gusts up to 45 kt,
diminishing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 9 to 13 ft. rain in the evening. showers after midnight. 
.mon...ne winds 20 to 25 kt with gusts up to 30 kt. seas 7 to
10 ft. showers.
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 7 ft. showers likely. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. a chance of showers. 
.tue night...nw winds around 5 kt. seas 3 to 4 ft.  

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 250203
cwfbox
expires:202609251500;;007342

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz254-251500-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1003 pm edt thu sep 24 2026

...storm warning in effect from 8 am edt friday through saturday
evening...

.overnight...ne winds 20 to 25 kt with gusts up to 35 kt. seas
9 to 13 ft. wave detail: e 12 ft at 11 seconds and n 1 foot at
4 seconds. 
.fri...ne winds 25 to 35 kt with gusts up to 50 kt. seas 12 to
16 ft. s and e of nantucket, seas 13 to 18 ft, building to 15 to
20 ft in the afternoon. wave detail: e 15 ft at 11 seconds and n
3 ft at 5 seconds. a chance of rain in the morning, then rain
likely in the afternoon. 
.fri night...ne winds 30 to 35 kt with gusts up to 60 kt. seas
15 to 20 ft, building to 17 to 22 ft after midnight. wave detail:
e 17 ft at 11 seconds and n 3 ft at 5 seconds, becoming e 18 ft
at 11 seconds and n 3 ft at 5 seconds. rain.
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 16 to
21 ft. wave detail: e 17 ft at 11 seconds and n 3 ft at
5 seconds. rain.
.sat night...e winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 50 kt. seas 12 to 17 ft, subsiding to
11 to 15 ft after midnight. wave detail: e 15 ft at 11 seconds
and nw 3 ft at 7 seconds, becoming ne 13 ft at 10 seconds and nw
3 ft at 10 seconds. rain.
.sun...e winds 15 to 20 kt with gusts up to 45 kt. seas 9 to
12 ft, subsiding to 7 to 10 ft in the afternoon. wave detail: ne
10 ft at 9 seconds and nw 1 foot at 9 seconds, becoming e 8 ft at
9 seconds and nw 2 ft at 7 seconds. rain.
.sun night...ne winds 20 to 25 kt with gusts up to 40 kt,
diminishing to 15 to 20 kt with gusts up to 30 kt after midnight.
seas 7 to 10 ft. rain in the evening. showers likely after
midnight. 
.mon...ne winds 10 to 15 kt with gusts up to 25 kt. seas 6 to
9 ft. a chance of showers. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
4 to 6 ft. a chance of showers. 
.tue and tue night...nw winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. seas 3 to 5 ft.  

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 250203
cwfbox
expires:202609251500;;007343

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt thu sep 24 2026

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


anz255-251500-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 pm edt thu sep 24 2026

...storm warning in effect from 2 am edt friday through saturday
evening...

.overnight...ne winds 25 to 30 kt with gusts up to 35 kt. seas
9 to 13 ft. wave detail: e 11 ft at 11 seconds and n 2 ft at
4 seconds. a slight chance of rain. 
.fri...ne winds 25 to 35 kt with gusts up to 45 kt, increasing to
30 to 40 kt with gusts up to 55 kt in the afternoon. seas 11 to
15 ft. s and e of nantucket, seas 13 to 18 ft, building to 15 to
20 ft in the afternoon. wave detail: ne 13 ft at 11 seconds and n
6 ft at 6 seconds. a chance of rain in the morning, then rain in
the afternoon. 
.fri night...ne winds 30 to 40 kt with gusts up to 60 kt. seas
13 to 18 ft, except 19 to 24 ft s and e of nantucket. wave
detail: ne 14 ft at 11 seconds and n 6 ft at 6 seconds. rain
likely. 
.sat...ne winds 25 to 35 kt. gusts up to 60 kt, decreasing to
50 kt in the afternoon. seas 13 to 18 ft, subsiding to 11 to
15 ft in the afternoon. s and e of nantucket, seas 18 to 23 ft,
subsiding to 14 to 19 ft in the afternoon. wave detail: ne 14 ft
at 10 seconds and n 5 ft at 6 seconds, becoming ne 12 ft at
10 seconds and n 5 ft at 6 seconds. rain.
.sat night...ne winds 20 to 25 kt, becoming e 15 to 20 kt after
midnight. gusts up to 50 kt. seas 9 to 12 ft, except 12 to 16 ft
s and e of nantucket. wave detail: ne 10 ft at 10 seconds and n
4 ft at 5 seconds. rain.
.sun...e winds 15 to 20 kt. gusts up to 45 kt, decreasing to
35 kt in the afternoon. seas 7 to 10 ft. s and e of nantucket,
seas 10 to 14 ft, subsiding to 8 to 11 ft in the afternoon. wave
detail: e 7 ft at 9 seconds and nw 6 ft at 7 seconds. rain.
.sun night...ne winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
seas 5 to 7 ft. rain likely in the evening. showers likely after
midnight. 
.mon...ne winds 15 to 20 kt. seas 4 to 6 ft. a chance of showers.
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. a chance of showers. 
.tue and tue night...nw winds 10 to 15 kt, diminishing to 5 to
10 kt. seas 2 to 4 ft.  

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.

$$