fzus51 kbox 230805
cwfbox
expires:202605232100;;499563

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz231-232100-
cape cod bay-
405 am edt sat may 23 2026

...small craft advisory in effect from late tonight through late
sunday night...

.today...ne winds around 5 kt, becoming e this afternoon. seas
1 foot or less. wave detail: n 1 foot at 4 seconds and s 1 foot
at 7 seconds. 
.tonight...se winds 5 to 10 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: e 1 foot at 2 seconds and n
1 foot at 3 seconds, becoming e 1 foot at 3 seconds and e 1 foot
at 9 seconds. 
.sun...se winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: se
3 ft at 4 seconds and e 3 ft at 8 seconds. patchy fog. showers.
vsby 1 to 3 nm in the afternoon. 
.sun night...se winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: se 4 ft at 5 seconds and e 1 foot at
17 seconds. showers. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds and sw 1 foot at 3 seconds. a chance of showers. 
.mon night...sw winds around 5 kt. seas around 2 ft. wave detail:
se 2 ft at 7 seconds and w 1 foot at 2 seconds. 
.tue through wed night...nw winds 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 230805
cwfbox
expires:202605232100;;499567

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz232-232100-
nantucket sound-
405 am edt sat may 23 2026

...small craft advisory in effect from late tonight through late
sunday night...

.today...e winds 5 to 10 kt. seas around 2 ft. wave detail: ne
1 foot at 4 seconds and s 1 foot at 7 seconds. 
.tonight...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: e 2 ft at 3 seconds and
n 1 foot at 4 seconds. a chance of showers after midnight. 
.sun...se winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. seas 3 to 5 ft. wave detail: se 4 ft at 8 seconds and
e 3 ft at 4 seconds. patchy fog. showers. vsby 1 to 3 nm in the
afternoon. 
.sun night...se winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: se 5 ft at 5 seconds and s 3 ft at
8 seconds. showers. patchy fog in the evening. vsby 1 to 3 nm. 
.mon...sw winds 10 to 15 kt, becoming w 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds and
sw 2 ft at 4 seconds. showers likely, mainly in the morning. 
.mon night...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
2 ft at 7 seconds and w 1 foot at 3 seconds. 
.tue through wed night...nw winds 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 230805
cwfbox
expires:202605232100;;499568

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz233-232100-
vineyard sound-
405 am edt sat may 23 2026

...small craft advisory in effect from late tonight through late
sunday night...

.today...e winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 10 seconds and ne 1 foot at 3 seconds. 
.tonight...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: se 2 ft at 8 seconds and e
1 foot at 2 seconds. a chance of showers after midnight. 
.sun...e winds 15 to 20 kt, becoming se 20 to 25 kt in the
afternoon. seas 3 to 5 ft. wave detail: se 5 ft at 9 seconds and
e 3 ft at 4 seconds. patchy fog. showers. vsby 1 to 3 nm in the
afternoon. 
.sun night...se winds 20 to 25 kt, becoming s 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: se 6 ft
at 9 seconds and sw 4 ft at 7 seconds. showers. patchy fog in the
evening. vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 8 seconds and se 3 ft at 9 seconds. showers likely, mainly in
the morning. 
.mon night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
2 ft at 8 seconds and w 1 foot at 2 seconds. 
.tue through wed night...nw winds 10 to 15 kt with gusts up to
20 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 230805
cwfbox
expires:202605232100;;499569

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz234-232100-
buzzards bay-
405 am edt sat may 23 2026

...small craft advisory in effect from late tonight through late
sunday night...

.today...e winds 5 to 10 kt, becoming se this afternoon. seas
1 foot or less, then around 2 ft this afternoon. wave detail: ne
1 foot at 3 seconds and s 1 foot at 7 seconds, becoming e 1 foot
at 2 seconds and n 1 foot at 4 seconds. 
.tonight...se winds 10 to 15 kt. seas around 2 ft. wave detail: s
2 ft at 8 seconds and e 1 foot at 2 seconds. a chance of showers
after midnight. 
.sun...e winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: se 4 ft at 9 seconds and e 2 ft at 3 seconds.
patchy fog. showers. vsby 1 to 3 nm in the afternoon. 
.sun night...se winds 20 to 25 kt, becoming s 15 to 20 kt after
midnight. gusts up to 30 kt. seas 2 to 4 ft. wave detail: s 4 ft
at 8 seconds and e 3 ft at 4 seconds. showers. patchy fog in the
evening. vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: sw 2 ft
at 6 seconds and se 2 ft at 9 seconds. showers likely, mainly in
the morning. 
.mon night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
se 2 ft at 8 seconds and w 1 foot at 2 seconds. 
.tue through wed night...nw winds 10 to 15 kt with gusts up to
20 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 230805
cwfbox
expires:202605232100;;499570

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz235-232100-
rhode island sound-
405 am edt sat may 23 2026

...small craft advisory in effect from late tonight through late
sunday night...

.today...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds and ne 2 ft at 4 seconds. 
.tonight...e winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft, building to 3 to 5 ft after midnight.
wave detail: se 3 ft at 8 seconds and ne 1 foot at 3 seconds,
becoming se 4 ft at 8 seconds and ne 2 ft at 5 seconds. a chance
of showers after midnight. 
.sun...e winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. wave detail: se 7 ft at 9 seconds and e 4 ft at 5 seconds.
patchy fog. showers. vsby 1 to 3 nm, decreasing to 1 nm or less
in the afternoon. 
.sun night...se winds 20 to 25 kt, becoming s 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 8 ft. wave detail: se 8 ft
at 9 seconds and sw 5 ft at 9 seconds. showers. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se 5 ft
at 9 seconds and sw 4 ft at 10 seconds. showers likely, mainly in
the morning. 
.mon night...w winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 8 seconds and s 2 ft at 7 seconds. 
.tue through wed night...nw winds 10 to 15 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 230805
cwfbox
expires:202605232100;;499573

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz236-232100-
narragansett bay-
405 am edt sat may 23 2026

.today...e winds 5 to 10 kt, becoming se this afternoon. waves
around 2 ft. 
.tonight...se winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. waves 2 to 3 ft. showers likely
after midnight. 
.sun...e winds 15 to 20 kt with gusts up to 25 kt. waves 3 to
5 ft. patchy fog. showers. vsby 1 to 3 nm, decreasing to 1 nm or
less in the afternoon. 
.sun night...se winds 15 to 20 kt, becoming s 10 to 15 kt after
midnight. gusts up to 25 kt. waves 3 to 5 ft. showers. patchy fog
in the evening with vsby 1 to 3 nm. 
.mon...nw winds 5 to 10 kt, becoming w in the afternoon. waves
2 to 3 ft. a chance of showers in the morning.
.mon night...w winds around 5 kt. waves 2 to 3 ft. 
.tue through wed night...nw winds 5 to 10 kt. waves 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 230805
cwfbox
expires:202605232100;;499561

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz250-232100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 am edt sat may 23 2026

...small craft advisory in effect from sunday afternoon through
monday evening...

.today...ne winds around 5 kt, becoming e this afternoon. seas
1 foot or less, then around 2 ft this afternoon. wave detail: nw
1 foot at 2 seconds and ne 1 foot at 3 seconds, becoming nw
1 foot at 2 seconds and e 1 foot at 3 seconds. 
.tonight...se winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 9 seconds and e 1 foot at 3 seconds. 
.sun...se winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: se 3 ft at 5 seconds. a chance of showers in
the morning, then showers in the afternoon. patchy fog in the
afternoon with vsby 1 to 3 nm. 
.sun night...se winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. wave detail: se 6 ft at 8 seconds and se 4 ft at
5 seconds. showers. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...w winds 5 to 10 kt. gusts up to 20 kt in the morning. seas
4 to 6 ft. wave detail: se 6 ft at 9 seconds and e 3 ft at
7 seconds. showers likely in the morning. 
.mon night...sw winds around 5 kt. seas 3 to 5 ft. wave detail:
se 5 ft at 8 seconds and e 2 ft at 7 seconds. 
.tue through wed night...nw winds 10 to 15 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 230805
cwfbox
expires:202605232100;;499564

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz254-232100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 am edt sat may 23 2026

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

.today...e winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 10 seconds and n 1 foot at 4 seconds. 
.tonight...e winds 5 to 10 kt, becoming se 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and
ne 2 ft at 3 seconds. 
.sun...se winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft, building to 4 to
6 ft in the afternoon. wave detail: se 4 ft at 8 seconds and e
3 ft at 4 seconds, becoming se 5 ft at 5 seconds and s 1 foot at
10 seconds. patchy fog. showers. vsby 1 to 3 nm in the afternoon.
.sun night...se winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 8 ft. wave detail: se 8 ft at 7 seconds and e 2 ft at
4 seconds. showers. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...sw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 5 to 7 ft, subsiding to 3 to
5 ft in the afternoon. wave detail: se 7 ft at 9 seconds and e
2 ft at 8 seconds, becoming se 5 ft at 9 seconds and ne 2 ft at
7 seconds. showers, mainly in the morning. 
.mon night...w winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se
5 ft at 8 seconds and s 2 ft at 7 seconds. 
.tue through wed night...w winds 10 to 15 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 230805
cwfbox
expires:202605232100;;499565

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt sat may 23 2026

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


anz255-232100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt sat may 23 2026

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

.today...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne 2 ft
at 4 seconds and se 2 ft at 9 seconds. 
.tonight...e winds 10 to 15 kt. gusts up to 20 kt after midnight.
seas 2 to 4 ft. wave detail: se 4 ft at 8 seconds and ne 3 ft at
4 seconds. a chance of showers after midnight. 
.sun...e winds 15 to 20 kt, becoming se 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft, building to 5 to
8 ft in the afternoon. wave detail: se 6 ft at 9 seconds and e
3 ft at 4 seconds, becoming se 8 ft at 9 seconds and e 3 ft at
4 seconds. patchy fog. showers. vsby 1 to 3 nm in the afternoon. 
.sun night...se winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 9 ft. wave detail: se 9 ft at 9 seconds and se 5 ft at
5 seconds. showers. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...sw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: se 6 ft
at 9 seconds and sw 3 ft at 7 seconds. showers, mainly in the
morning. 
.mon night...w winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
5 ft at 7 seconds and w 1 foot at 3 seconds. a chance of showers
in the evening. 
.tue through wed night...w winds 10 to 15 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.

$$