fzus51 kbox 191405
cwfbox
expires:202604200300;;638001

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz231-200300-
cape cod bay-
1005 am edt sun apr 19 2026

...small craft advisory in effect from 4 pm this afternoon to
8 pm edt this evening...

.this afternoon...s winds around 10 kt with gusts up to 20 kt,
becoming w 20 to 25 kt with gusts up to 30 kt. seas 2 to 3 ft.
wave detail: s 2 ft at 3 seconds and ne 1 foot at 5 seconds.
patchy fog. a chance of rain. rain with isolated tstms. vsby 1 nm
or less. 
.tonight...nw winds 20 to 25 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
3 ft. wave detail: nw 3 ft at 4 seconds and ne 2 ft at 7 seconds.
patchy fog in the evening. a chance of rain in the evening with
vsby 1 to 3 nm. 
.mon...sw winds 5 to 10 kt. seas around 2 ft. wave detail: n 2 ft
at 5 seconds and s 1 foot at 7 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 3 ft. wave detail: n
2 ft at 5 seconds and s 1 foot at 7 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: n
2 ft at 5 seconds and s 1 foot at 7 seconds. 
.tue night...s winds 5 to 10 kt. seas around 2 ft. wave detail: n
2 ft at 5 seconds and s 1 foot at 5 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638005

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz232-200300-
nantucket sound-
1005 am edt sun apr 19 2026

...small craft advisory in effect from 4 pm this afternoon to
8 pm edt this evening...

.this afternoon...s winds 15 to 20 kt, becoming sw. gusts up to
30 kt. seas 2 to 4 ft. wave detail: se 3 ft at 6 seconds and sw
2 ft at 3 seconds. patchy fog. a chance of rain, then rain likely
with isolated tstms. vsby 1 nm or less. 
.tonight...nw winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. seas 2 to 3 ft. wave
detail: nw 3 ft at 4 seconds and se 2 ft at 7 seconds. patchy fog
in the evening. a chance of rain in the evening with vsby 1 to
3 nm. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 3 seconds and s 1 foot at 6 seconds. 
.mon night...w winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
nw 2 ft at 4 seconds and ne 2 ft at 7 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: nw
2 ft at 5 seconds and s 1 foot at 6 seconds. 
.tue night...s winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas around 2 ft. wave detail: s 1 foot at 5 seconds
and w 1 foot at 6 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638006

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz233-200300-
vineyard sound-
1005 am edt sun apr 19 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt,
becoming w 15 to 20 kt with gusts up to 30 kt. seas 2 to 3 ft.
wave detail: s 2 ft at 3 seconds and e 1 foot at 7 seconds.
patchy fog. a chance of rain. rain with isolated tstms. vsby 1 nm
or less. 
.tonight...nw winds 15 to 20 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
3 ft. wave detail: sw 3 ft at 6 seconds and e 1 foot at
7 seconds. patchy fog in the evening. a chance of rain in the
evening. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 6 seconds and e 1 foot at 8 seconds. a chance of rain in the
afternoon. 
.mon night...nw winds around 10 kt, becoming n 15 to 20 kt after
midnight. seas around 2 ft. wave detail: nw 2 ft at 4 seconds and
sw 1 foot at 6 seconds. a chance of showers in the evening. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: n 2 ft at 4 seconds and s
1 foot at 6 seconds, becoming ne 1 foot at 4 seconds and nw
1 foot at 4 seconds. 
.tue night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 4 seconds and e 1 foot at 5 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638007

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz234-200300-
buzzards bay-
1005 am edt sun apr 19 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt,
becoming w 15 to 20 kt with gusts up to 30 kt. seas 2 to 3 ft.
wave detail: s 2 ft at 5 seconds and sw 1 foot at 2 seconds.
patchy fog. rain likely with a slight chance of tstms. vsby 1 nm
or less. 
.tonight...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 3 seconds and sw 2 ft at 6 seconds. a chance of rain in the
evening. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 6 seconds and e 1 foot at 8 seconds. a chance of rain in the
afternoon. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
n 2 ft at 3 seconds and s 1 foot at 6 seconds. a chance of
showers in the evening. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: n 2 ft at 4 seconds and s
1 foot at 5 seconds, becoming ne 1 foot at 3 seconds and nw
1 foot at 5 seconds. 
.tue night...s winds 10 to 15 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and ne 1 foot at 6 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638008

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz235-200300-
rhode island sound-
1005 am edt sun apr 19 2026

...small craft advisory in effect until 6 pm edt this evening...

.this afternoon...se winds 10 to 15 kt with gusts up to 20 kt,
becoming w 20 to 25 kt with gusts up to 30 kt. seas 2 to 4 ft.
wave detail: s 3 ft at 3 seconds and e 1 foot at 7 seconds.
patchy fog. rain with isolated tstms. vsby 1 nm or less. 
.tonight...nw winds 15 to 20 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
4 ft. wave detail: nw 3 ft at 4 seconds and se 3 ft at 7 seconds.
a chance of rain in the evening. 
.mon...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w 2 ft at
4 seconds and s 2 ft at 7 seconds. a chance of rain in the
afternoon. 
.mon night...nw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: w 2 ft at 3 seconds and se
2 ft at 7 seconds. a chance of showers in the evening. 
.tue and tue night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and n 2 ft at
4 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft. wave detail: s 3 ft at 5 seconds.  

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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638011

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz236-200300-
narragansett bay-
1005 am edt sun apr 19 2026

.this afternoon...s winds 5 to 10 kt, becoming nw 15 to 20 kt
with gusts up to 30 kt. waves 2 to 3 ft. patchy fog. rain with a
slight chance of tstms. vsby 1 nm or less. 
.tonight...nw winds 10 to 15 kt with gusts up to 25 kt, becoming
w 5 to 10 kt after midnight. waves around 2 ft. a chance of rain
in the evening. 
.mon...w winds 5 to 10 kt. waves around 2 ft. a chance of rain in
the afternoon. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. waves around 2 ft. a chance of showers in the evening. 
.tue and tue night...s winds 5 to 10 kt. waves around 2 ft. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 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 191405
cwfbox
expires:202604200300;;637999

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz250-200300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1005 am edt sun apr 19 2026

...small craft advisory in effect from 4 pm this afternoon to
8 pm edt this evening...

.this afternoon...s winds around 10 kt with gusts up to 20 kt,
becoming w 20 to 25 kt with gusts up to 30 kt. seas 3 to 4 ft.
wave detail: se 4 ft at 7 seconds and sw 1 foot at 3 seconds.
patchy fog. a chance of rain. rain with a slight chance of tstms.
vsby 1 nm or less. 
.tonight...nw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 7 seconds and nw 3 ft at 4 seconds. patchy fog in the evening.
a chance of rain in the evening with vsby 1 to 3 nm. 
.mon...w winds 10 to 15 kt, becoming sw 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and
w 2 ft at 4 seconds. 
.mon night...nw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and ne
3 ft at 8 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n 4 ft
at 5 seconds and se 1 foot at 7 seconds. 
.tue night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 4 seconds and ne 2 ft at 6 seconds. 
.wed through thu night...n winds 10 to 15 kt. seas 2 to 3 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638002

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz254-200300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1005 am edt sun apr 19 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: se 4 ft at 6 seconds and sw 1 foot
at 4 seconds. patchy fog. a slight chance of rain, then rain
likely with isolated tstms. vsby 1 nm or less. 
.tonight...nw winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: nw 4 ft
at 4 seconds and se 3 ft at 7 seconds. patchy fog in the evening.
a chance of rain in the evening with vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: nw 3 ft at 5 seconds and se 2 ft at
7 seconds. 
.mon night...w winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 3 ft. wave detail: ne
3 ft at 8 seconds and nw 2 ft at 4 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n 3 ft
at 6 seconds and s 1 foot at 7 seconds. 
.tue night...se winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: n 3 ft at 6 seconds and s 1 foot at
6 seconds. 
.wed...s winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers. 
.wed night through thu night...nw winds 5 to 10 kt. seas 2 to
4 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.

$$

fzus51 kbox 191405
cwfbox
expires:202604200300;;638003

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sun apr 19 2026

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


anz255-200300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1005 am edt sun apr 19 2026

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

.this afternoon...s winds 15 to 20 kt, becoming sw. gusts up to
30 kt. seas 3 to 5 ft. wave detail: sw 4 ft at 6 seconds and e
4 ft at 7 seconds. patchy fog. a chance of rain, then rain likely
with isolated tstms. vsby 1 nm or less. 
.tonight...nw winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: nw 4 ft
at 5 seconds and s 3 ft at 6 seconds. patchy fog in the evening.
a chance of rain in the evening with vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: w 3 ft at 6 seconds and se 2 ft at
7 seconds. 
.mon night...w winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 8 seconds and
sw 2 ft at 6 seconds. 
.tue...n winds 15 to 20 kt, becoming ne 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: n 3 ft at 5 seconds and s
1 foot at 7 seconds. 
.tue night...se winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e
2 ft at 6 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 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.

$$