fzus51 kbox 211104
cwfbox
expires:202603220000;;054415

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz231-220000-
cape cod bay-
703 am edt sat mar 21 2026

.today...w winds around 10 kt, becoming n this afternoon. gusts
up to 25 kt. seas 2 to 3 ft. wave detail: se 2 ft at 9 seconds
and w 1 foot at 3 seconds. patchy fog this morning. 
.tonight...n winds 5 to 10 kt, becoming e after midnight. seas
around 2 ft. wave detail: nw 1 foot at 4 seconds and e 1 foot at
7 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and ne 1 foot at
6 seconds. a chance of rain. patchy fog in the afternoon with
vsby 1 to 3 nm. 
.sun night...w winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas 2 to 3 ft. wave detail: sw 2 ft at
3 seconds and e 2 ft at 6 seconds. rain. patchy fog in the
evening with vsby 1 nm or less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: n 4 ft at 5 seconds. rain with a chance of
snow in the morning, then a chance of rain in the afternoon. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: n 4 ft at 6 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. 
.tue night through wed night...w winds 15 to 20 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 211104
cwfbox
expires:202603220000;;054419

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz232-220000-
nantucket sound-
703 am edt sat mar 21 2026

.today...w winds 10 to 15 kt, becoming n this afternoon. gusts up
to 25 kt. seas 2 to 4 ft. wave detail: sw 3 ft at 5 seconds and e
2 ft at 9 seconds. patchy fog this morning with vsby 1 nm or
less. 
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
2 to 3 ft. wave detail: w 2 ft at 6 seconds and ne 1 foot at
8 seconds. 
.sun...s winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 3 ft at 4 seconds and
se 1 foot at 8 seconds. patchy fog in the afternoon. a chance of
rain in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas 2 to 3 ft. wave detail: sw 3 ft at
5 seconds and e 1 foot at 8 seconds. rain. patchy fog in the
evening with vsby 1 nm or less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: ne 3 ft at 5 seconds and sw 2 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 15 to 20 kt. seas 2 to 4 ft. wave detail: n
3 ft at 5 seconds. 
.tue through wed night...w winds 15 to 20 kt with gusts up to
25 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.

$$

fzus51 kbox 211104
cwfbox
expires:202603220000;;054420

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz233-220000-
vineyard sound-
703 am edt sat mar 21 2026

.today...w winds 10 to 15 kt, becoming nw this afternoon. gusts
up to 20 kt. seas 3 to 5 ft. wave detail: sw 4 ft at 8 seconds
and se 2 ft at 9 seconds. patchy fog this morning. 
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
2 to 3 ft. wave detail: sw 2 ft at 7 seconds and se 2 ft at
8 seconds. 
.sun...s winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and
se 1 foot at 8 seconds. patchy fog in the afternoon. a chance of
rain in the afternoon with vsby 1 to 3 nm. 
.sun night...w winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas 2 to 3 ft. wave detail: s 3 ft at
7 seconds. rain. patchy fog in the evening with vsby 1 nm or
less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: ne 3 ft at 4 seconds and sw 2 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 5 seconds
and nw 2 ft at 6 seconds. 
.tue through wed night...nw winds 15 to 20 kt with gusts up to
25 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.

$$

fzus51 kbox 211104
cwfbox
expires:202603220000;;054421

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz234-220000-
buzzards bay-
703 am edt sat mar 21 2026

.today...w winds 10 to 15 kt, becoming nw 5 to 10 kt this
afternoon. gusts up to 20 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 8 seconds and se 2 ft at 8 seconds. patchy fog this
morning. 
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
around 2 ft. wave detail: sw 2 ft at 7 seconds and e 1 foot at
7 seconds. 
.sun...s winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and
se 1 foot at 8 seconds. patchy fog in the afternoon. a chance of
rain in the afternoon with vsby 1 to 3 nm. 
.sun night...sw winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas around 2 ft. wave detail: sw 2 ft at
6 seconds and se 2 ft at 8 seconds. rain. areas of fog in the
evening with vsby 1 nm or less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: ne 2 ft at 3 seconds and sw 2 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: n 2 ft at 5 seconds. 
.tue...nw winds 10 to 15 kt. seas around 2 ft. 
.tue night through wed night...w winds 15 to 20 kt with gusts up
to 25 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.

$$

fzus51 kbox 211104
cwfbox
expires:202603220000;;054422

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz235-220000-
rhode island sound-
703 am edt sat mar 21 2026

.today...w winds 10 to 15 kt, becoming nw this afternoon. gusts
up to 20 kt. seas 4 to 6 ft. wave detail: s 6 ft at 8 seconds and
s 5 ft at 8 seconds. patchy fog this morning with vsby 1 to 3 nm.
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
2 to 4 ft. wave detail: s 4 ft at 7 seconds and se 3 ft at
8 seconds. 
.sun...s winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 2 to 4 ft. wave detail: s 4 ft at 7 seconds.
patchy fog. a chance of rain in the afternoon. vsby 1 nm or less,
increasing to 1 to 3 nm in the afternoon. 
.sun night...w winds 10 to 15 kt, becoming n after midnight.
gusts up to 20 kt. seas 3 to 4 ft. wave detail: s 4 ft at
7 seconds. rain. patchy fog in the evening with vsby 1 nm or
less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: ne 5 ft at 7 seconds and sw 3 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 15 to 20 kt. seas 2 to 4 ft. wave detail: n
4 ft at 6 seconds. 
.tue through wed night...w winds 15 to 20 kt with gusts up to
25 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 211104
cwfbox
expires:202603220000;;054425

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz236-220000-
narragansett bay-
703 am edt sat mar 21 2026

.today...nw winds 5 to 10 kt with gusts up to 20 kt. waves 2 to
4 ft. 
.tonight...n winds 5 to 10 kt, becoming se after midnight. waves
2 to 3 ft. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. patchy fog. a chance of rain in the afternoon. vsby 1 to
3 nm. 
.sun night...w winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. waves 2 to 3 ft. rain. patchy
fog in the evening with vsby 1 nm or less. 
.mon...n winds around 15 kt with gusts up to 20 kt. waves 2 to
3 ft. a chance of snow. rain in the morning, then a chance of
rain in the afternoon. 
.mon night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves 2 to 3 ft. 
.tue through wed night...w winds 10 to 15 kt with gusts up to
20 kt. waves 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 211104
cwfbox
expires:202603220000;;054413

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz250-220000-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 am edt sat mar 21 2026

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

.today...nw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: se 4 ft at 8 seconds and w 2 ft at 4 seconds. 
.tonight...n winds around 10 kt, becoming ne after midnight. seas
2 to 4 ft. wave detail: e 3 ft at 8 seconds and nw 2 ft at
4 seconds. 
.sun...s winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: s 4 ft
at 5 seconds and se 3 ft at 8 seconds. patchy fog. a chance of
rain and snow in the morning. rain likely in the afternoon. vsby
1 to 3 nm. 
.sun night...w winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: e 5 ft
at 8 seconds and sw 3 ft at 4 seconds. rain likely. patchy fog in
the evening with vsby 1 nm or less. 
.mon...n winds around 20 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: n 7 ft at 6 seconds. a chance of snow. rain
likely in the morning. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
6 to 7 ft. wave detail: ne 7 ft at 8 seconds. 
.tue...n winds 15 to 20 kt. seas 5 to 7 ft. 
.tue night and wed...sw winds 20 to 25 kt. seas 3 to 5 ft. 
.wed night...nw winds 20 to 25 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.

$$

fzus51 kbox 211104
cwfbox
expires:202603220000;;054416

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz254-220000-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
703 am edt sat mar 21 2026

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

.today...w winds 10 to 15 kt, becoming nw 15 to 20 kt this
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: sw
4 ft at 7 seconds and se 4 ft at 8 seconds. patchy fog this
morning. a slight chance of rain this morning with vsby 1 nm or
less. 
.tonight...n winds 5 to 10 kt with gusts up to 20 kt, becoming e
after midnight. seas 2 to 4 ft. wave detail: nw 3 ft at 6 seconds
and se 3 ft at 8 seconds. 
.sun...s winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: s 4 ft
at 6 seconds. patchy fog in the afternoon. a chance of rain in
the afternoon with vsby 1 to 3 nm. 
.sun night...sw winds 10 to 15 kt, becoming n after midnight.
gusts up to 20 kt. seas 3 to 5 ft. wave detail: s 4 ft at
7 seconds. rain. patchy fog in the evening with vsby 1 nm or
less. 
.mon...n winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. seas 5 to 7 ft. wave detail: n 7 ft at 6 seconds.
rain, mainly in the morning. 
.mon night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 5 to 8 ft. wave detail: ne 8 ft at 8 seconds
and nw 1 foot at 5 seconds. 
.tue...n winds 15 to 20 kt. seas 5 to 7 ft. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. 
.wed and wed night...sw winds 15 to 20 kt, becoming w. gusts up
to 25 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 211104
cwfbox
expires:202603220000;;054417

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz255-220000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 am edt sat mar 21 2026

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

.today...w winds 15 to 20 kt, becoming nw 10 to 15 kt this
afternoon. gusts up to 25 kt. seas 5 to 7 ft. wave detail: sw
7 ft at 8 seconds and e 3 ft at 8 seconds. patchy fog this
morning with vsby 1 nm or less. 
.tonight...ne winds 5 to 10 kt with gusts up to 20 kt, becoming
se after midnight. seas 3 to 5 ft. wave detail: sw 4 ft at
7 seconds and se 3 ft at 8 seconds. 
.sun...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: s 5 ft at 7 seconds. patchy fog in the
afternoon with vsby 1 to 3 nm. 
.sun night...sw winds 10 to 15 kt, becoming nw after midnight.
gusts up to 20 kt. seas 4 to 5 ft. wave detail: s 5 ft at
7 seconds and se 2 ft at 8 seconds. rain likely. patchy fog in
the evening with vsby 1 nm or less. 
.mon...n winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. seas 4 to 6 ft. wave detail: ne 6 ft at 7 seconds and
w 5 ft at 7 seconds. rain likely, mainly in the morning. 
.mon night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 4 to 6 ft. wave detail: ne 6 ft at 8 seconds
and nw 4 ft at 4 seconds. 
.tue...n winds 15 to 20 kt. seas 3 to 5 ft. 
.tue night through wed night...nw winds 20 to 25 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.

$$