fzus51 kbox 280503
cwfbox
expires:202609281800;;173702

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz231-281800-
cape cod bay-
103 am edt mon sep 28 2026

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

.rest of tonight...ne winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: ne 5 ft at 7 seconds and e 3 ft at
4 seconds. patchy fog. showers likely with a slight chance of
tstms. vsby 1 nm or less. 
.mon...e winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: ne
4 ft at 7 seconds and e 2 ft at 4 seconds. patchy fog. showers.
vsby 1 nm or less. 
.mon night...e winds 5 to 10 kt, becoming nw 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 4 ft. wave detail: ne
4 ft at 7 seconds. patchy fog. showers likely in the evening.
vsby 1 to 3 nm. 
.tue...nw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: n 3 ft
at 6 seconds. patchy fog. vsby 1 to 3 nm in the morning. 
.tue night...n winds around 5 kt. seas 2 to 3 ft. wave detail: n
2 ft at 5 seconds. 
.wed and wed night...sw winds around 5 kt. seas around 2 ft. wave
detail: n 2 ft at 6 seconds. 
.thu through fri...sw winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. 
.fri night...nw winds around 10 kt. seas around 2 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 280503
cwfbox
expires:202609281800;;173706

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz232-281800-
nantucket sound-
103 am edt mon sep 28 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...e winds 15 to 20 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 9 seconds and se 3 ft at 6 seconds. patchy fog.
showers likely with a slight chance of tstms. vsby 1 nm or less. 
.mon...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: e 3 ft
at 9 seconds and se 2 ft at 6 seconds. patchy fog. a chance of
showers in the morning, then showers likely in the afternoon.
vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon. 
.mon night...se winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas 2 to 4 ft. wave detail: e 3 ft at 9 seconds and s
2 ft at 7 seconds. patchy fog. showers likely in the evening.
vsby 1 to 3 nm. 
.tue...nw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: nw 2 ft at 5 seconds and
e 2 ft at 8 seconds. patchy fog in the morning. 
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw
2 ft at 4 seconds and ne 2 ft at 9 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: e 2 ft at 9 seconds and sw 1 foot at 6 seconds. 
.thu through fri...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.fri night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 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 280503
cwfbox
expires:202609281800;;173707

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz233-281800-
vineyard sound-
103 am edt mon sep 28 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...ne winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: s 3 ft at 8 seconds and ne 2 ft at
5 seconds. patchy fog. showers likely with a chance of tstms.
vsby 1 nm or less. 
.mon...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. patchy fog. showers likely. vsby 1 nm or less in
the morning. 
.mon night...e winds around 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and e 2 ft at
11 seconds. patchy fog. showers likely in the evening. vsby 1 to
3 nm. 
.tue...nw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: nw 3 ft at 7 seconds and
e 1 foot at 8 seconds. patchy fog in the morning. 
.tue night...n winds around 5 kt. seas around 2 ft. wave detail:
sw 2 ft at 5 seconds and ne 1 foot at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 6 seconds and e 1 foot at 12 seconds. 
.thu through fri...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.fri night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 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 280503
cwfbox
expires:202609281800;;173708

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz234-281800-
buzzards bay-
103 am edt mon sep 28 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...ne winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: e 3 ft at 5 seconds. patchy fog.
showers with a slight chance of tstms. vsby 1 nm or less. 
.mon...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 5 seconds and ne 2 ft at 10 seconds. patchy fog. showers. vsby
1 nm or less, increasing to 1 to 3 nm in the afternoon. 
.mon night...ne winds around 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: e 3 ft at 7 seconds and e 1 foot at
15 seconds. patchy fog. a chance of showers in the evening. vsby
1 to 3 nm. 
.tue...nw winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 7 seconds and ne 1 foot at 5 seconds. patchy fog in the
morning with vsby 1 to 3 nm. 
.tue night...n winds around 5 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: ne 1 foot at 3 seconds
and sw 1 foot at 6 seconds, becoming e 1 foot at 4 seconds and sw
1 foot at 5 seconds. 
.wed and wed night...sw winds around 5 kt. seas 1 foot or less.
wave detail: sw 1 foot at 5 seconds and e 1 foot at 11 seconds. 
.thu through fri...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.fri night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 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 280503
cwfbox
expires:202609281800;;173709

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz235-281800-
rhode island sound-
103 am edt mon sep 28 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...ne winds 15 to 20 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 7 seconds. patchy fog. showers with a slight
chance of tstms. vsby 1 nm or less. 
.mon...e winds 10 to 15 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 7 seconds. patchy fog. showers. vsby 1 nm or less, increasing
to 1 to 3 nm in the afternoon. 
.mon night...ne winds 10 to 15 kt, becoming nw after midnight.
seas 3 to 4 ft. wave detail: s 4 ft at 7 seconds and ne 2 ft at
9 seconds. patchy fog. a chance of showers in the evening. vsby
1 to 3 nm. 
.tue...nw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: nw 4 ft at 7 seconds and
e 2 ft at 9 seconds. patchy fog in the morning. 
.tue night...n winds around 5 kt. seas around 2 ft. wave detail:
sw 2 ft at 6 seconds and ne 2 ft at 9 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 11 seconds and s 1 foot at 7 seconds. 
.thu through fri 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 280503
cwfbox
expires:202609281800;;173712

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz236-281800-
narragansett bay-
103 am edt mon sep 28 2026

.rest of tonight...ne winds around 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. patchy fog. showers with a chance of tstms. vsby
1 nm or less. 
.mon...ne winds 10 to 15 kt. waves 2 to 3 ft. patchy fog.
showers. vsby 1 nm or less, increasing to 1 to 3 nm in the
afternoon. 
.mon night...n winds 10 to 15 kt. waves 2 to 3 ft. patchy fog. a
chance of showers in the evening. vsby 1 to 3 nm. 
.tue...nw winds 5 to 10 kt. waves 2 to 3 ft. patchy fog in the
morning. 
.tue night...n winds around 5 kt. waves around 2 ft.
.wed and wed night...sw winds around 5 kt. waves 1 foot or less. 
.thu through fri 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 280503
cwfbox
expires:202609281800;;173700

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz250-281800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt mon sep 28 2026

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

.rest of tonight...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 7 to 9 ft. wave detail: e 9 ft at 9 seconds and se 6 ft at
8 seconds. patchy fog. showers likely with a slight chance of
tstms. vsby 1 nm or less. 
.mon...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 6 to 9 ft. wave detail: e 9 ft
at 9 seconds and se 2 ft at 7 seconds. patchy fog. showers. vsby
1 nm or less. 
.mon night...ne winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 5 to 7 ft. wave detail:
ne 7 ft at 8 seconds and se 2 ft at 7 seconds. patchy fog.
showers likely, mainly in the evening. vsby 1 nm or less,
increasing to 1 to 3 nm after midnight. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
5 ft. wave detail: ne 5 ft at 9 seconds and s 2 ft at 7 seconds.
patchy fog. vsby 1 to 3 nm in the morning. 
.tue night and wed...nw winds around 5 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 9 seconds and se 1 foot at 7 seconds. 
.wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
3 ft at 9 seconds and s 1 foot at 6 seconds. 
.thu through fri...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.fri night...nw winds around 10 kt. seas 2 to 3 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 280503
cwfbox
expires:202609281800;;173703

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz254-281800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 am edt mon sep 28 2026

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

.rest of tonight...e winds 10 to 15 kt with gusts up to 25 kt.
seas 6 to 8 ft. wave detail: e 7 ft at 9 seconds and s 3 ft at
8 seconds. patchy fog. a chance of showers with a slight chance
of tstms. vsby 1 nm or less. 
.mon...e winds 10 to 15 kt. gusts up to 25 kt in the morning.
seas 5 to 8 ft. wave detail: ne 7 ft at 9 seconds and s 3 ft at
7 seconds. patchy fog. showers likely in the morning. a chance of
showers in the afternoon. vsby 1 nm or less. 
.mon night...se winds 5 to 10 kt, becoming s 10 to 15 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 8 seconds and s
3 ft at 7 seconds. patchy fog. a chance of showers in the
evening. vsby 1 to 3 nm. 
.tue...nw winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
5 ft. wave detail: e 5 ft at 8 seconds and s 3 ft at 7 seconds.
patchy fog. 
.tue night and wed...n winds 5 to 10 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 9 seconds and sw 2 ft at 7 seconds. 
.wed night...sw winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas 3 to 4 ft. wave detail: e 4 ft at 9 seconds and s
1 foot at 6 seconds. 
.thu through fri...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. 
.fri night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 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 280503
cwfbox
expires:202609281800;;173704

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon sep 28 2026

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


anz255-281800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 am edt mon sep 28 2026

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

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

$$