fzus51 kbox 201403
cwfbox
expires:202605210300;;348953

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz231-210300-
cape cod bay-
1003 am edt wed may 20 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot
at 8 seconds. a slight chance of showers and tstms. 
.tonight...w winds around 10 kt with gusts up to 20 kt, becoming
n after midnight. seas around 2 ft. wave detail: w 1 foot at
3 seconds and se 1 foot at 10 seconds. a chance of showers. 
.thu...ne winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 3 seconds and ne 1 foot at 11 seconds. 
.thu night...s winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: n 1 foot at 5 seconds. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 4 seconds. 
.fri night...sw winds around 5 kt. seas 1 foot or less. wave
detail: s 1 foot at 3 seconds and ne 1 foot at 4 seconds. 
.sat through sun...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. a chance of showers. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348957

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz232-210300-
nantucket sound-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 3 ft at 4 seconds and se 1 foot
at 8 seconds. a slight chance of showers and tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 25 kt, becoming n
after midnight. seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds
and se 1 foot at 9 seconds. a chance of showers in the evening.
showers likely after midnight. patchy fog in the evening with
vsby 1 to 3 nm. 
.thu...ne winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds and
ne 2 ft at 7 seconds. a chance of showers in the morning. 
.thu night...se winds around 5 kt, becoming nw after midnight.
seas around 2 ft. wave detail: sw 1 foot at 5 seconds and e
1 foot at 5 seconds. 
.fri...e winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: ne 1 foot at 5 seconds and sw 1 foot
at 6 seconds, becoming e 1 foot at 4 seconds and s 1 foot at
6 seconds. 
.fri night...se winds around 5 kt. seas 1 foot or less. wave
detail: se 1 foot at 5 seconds. 
.sat...e winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.sat night through sun night...e winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 3 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348958

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz233-210300-
vineyard sound-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds and se 1 foot
at 13 seconds. a slight chance of showers and tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds
and se 1 foot at 13 seconds. a chance of showers and tstms in the
evening, then showers likely after midnight. 
.thu...ne winds 10 to 15 kt, becoming e 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds and
ne 1 foot at 7 seconds. a chance of showers in the morning. 
.thu night...s winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and e 1 foot at
7 seconds. 
.fri and fri night...se winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 6 seconds and e 1 foot at 6 seconds. 
.sat...e winds 10 to 15 kt. seas around 2 ft. wave detail: s
1 foot at 7 seconds and se 1 foot at 9 seconds. a chance of
showers. 
.sat night through sun night...e winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 3 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348959

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz234-210300-
buzzards bay-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 3 ft at 5 seconds and s 2 ft at
13 seconds. a chance of showers with a slight chance of tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw 3 ft
at 6 seconds and se 1 foot at 12 seconds. a chance of showers. a
chance of tstms in the evening. 
.thu...ne winds 5 to 10 kt. seas around 2 ft. wave detail: ne
1 foot at 2 seconds and sw 1 foot at 6 seconds. 
.thu night...s winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: e 1 foot at 2 seconds and sw 1 foot at
6 seconds. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: ne 1 foot at 2 seconds and sw 1 foot
at 6 seconds. 
.fri night...s winds 5 to 10 kt, diminishing to around 5 kt after
midnight. seas 1 foot or less. wave detail: se 1 foot at
3 seconds. 
.sat...e winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.sat night through sun night...e winds 15 to 20 kt. seas 2 to
3 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348960

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz235-210300-
rhode island sound-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot
at 15 seconds. a chance of showers and tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds
and se 1 foot at 15 seconds. a chance of showers and tstms in the
evening, then showers likely after midnight. patchy fog in the
evening. 
.thu...ne winds 10 to 15 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: s 3 ft at 7 seconds and ne 2 ft at
12 seconds. a chance of showers in the morning. 
.thu night...s winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: se 2 ft at 7 seconds. 
.fri and fri night...se winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and ne 2 ft at 8 seconds. 
.sat...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. a chance of showers. 
.sat night...e winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. showers likely. 
.sun and sun night...e winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348963

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz236-210300-
narragansett bay-
1003 am edt wed may 20 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. a chance of showers and tstms. 
.tonight...w winds 5 to 10 kt with gusts up to 20 kt, becoming n
after midnight. waves 2 to 3 ft. a chance of showers. a chance of
tstms in the evening. 
.thu...n winds around 10 kt, becoming e in the afternoon. waves
around 2 ft. 
.thu night...s winds 5 to 10 kt, becoming n after midnight. waves
around 2 ft. 
.fri and fri night...s winds 5 to 10 kt. waves around 2 ft. 
.sat...e winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.sat night through sun night...e winds 10 to 15 kt with gusts up
to 20 kt. waves 2 to 3 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348951

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz250-210300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 am edt wed may 20 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and se 2 ft at
8 seconds. a slight chance of showers. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 3 ft. wave detail: w 2 ft at 4 seconds
and se 2 ft at 9 seconds. 
.thu...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne 3 ft
at 8 seconds and nw 2 ft at 3 seconds. 
.thu night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: ne 2 ft at 7 seconds and w 1 foot at
3 seconds. 
.fri...n winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: ne 2 ft at 7 seconds and w 1 foot at
3 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 8 seconds and s 1 foot at 3 seconds. 
.sat through sun...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. a chance of showers. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 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 201403
cwfbox
expires:202605210300;;348954

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz254-210300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1003 am edt wed may 20 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot
at 15 seconds. patchy fog. a slight chance of showers and tstms.
vsby 1 nm or less. 
.tonight...w winds 15 to 20 kt, becoming nw around 10 kt after
midnight. seas 3 to 5 ft. wave detail: w 5 ft at 6 seconds and se
2 ft at 15 seconds. a chance of showers. patchy fog in the
evening with vsby 1 nm or less. 
.thu...n winds 10 to 15 kt, becoming ne 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: nw 3 ft at 6 seconds and
ne 2 ft at 11 seconds.
.thu night...se winds around 5 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds and ne 2 ft at
7 seconds. 
.fri...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne 2 ft
at 7 seconds and s 1 foot at 6 seconds. 
.fri night...s winds around 5 kt. seas around 2 ft. wave detail:
e 2 ft at 7 seconds and s 1 foot at 6 seconds. 
.sat and sat night...e winds 5 to 10 kt, increasing to 10 to
15 kt with gusts up to 20 kt. seas 2 to 3 ft. a chance of
showers. 
.sun and sun night...e winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. a chance of showers.  

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 201403
cwfbox
expires:202605210300;;348955

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

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


anz255-210300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 am edt wed may 20 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot
at 15 seconds. patchy fog. vsby 1 nm or less. 
.tonight...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. seas 3 to 5 ft. wave detail: sw
5 ft at 7 seconds and se 1 foot at 15 seconds. patchy fog. a
chance of showers in the evening. showers likely after midnight.
vsby 1 to 3 nm. 
.thu...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds and ne 3 ft at
11 seconds. a chance of showers in the morning. 
.thu night...e winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: s 2 ft at 6 seconds and e 2 ft at
7 seconds. 
.fri and fri night...se winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and ne 2 ft at 8 seconds. 
.sat...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds and e 2 ft at 9 seconds. a chance of showers. 
.sat night...e winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. showers likely. 
.sun and sun night...e winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. showers likely.  

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.

$$