fzus51 kbox 260803
cwfbox
expires:202609262100;;074852

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz231-262100-
cape cod bay-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 50 kt. seas 5 to
7 ft. wave detail: e 7 ft at 6 seconds. patchy fog. showers. a
slight chance of tstms this morning, then a chance of tstms this
afternoon. vsby 1 nm or less. 
.tonight...ne winds 25 to 30 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: ne 7 ft at 6 seconds and sw 4 ft at 6 seconds.
patchy fog. showers. vsby 1 nm or less, increasing to 1 to 3 nm
after midnight. 
.sun...ne winds 20 to 25 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: e 6 ft at 6 seconds. patchy fog. showers
likely. vsby 1 to 3 nm. 
.sun night...e winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 35 kt. seas 4 to 6 ft. wave detail:
ne 5 ft at 6 seconds. showers. patchy fog in the evening with
vsby 1 to 3 nm. 
.mon...e winds 10 to 15 kt with 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.
showers likely, mainly in the morning. 
.mon night...e winds 5 to 10 kt, becoming se after midnight. seas
2 to 4 ft. wave detail: ne 3 ft at 7 seconds. a chance of showers
in the evening. 
.tue through wed night...sw winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074856

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz232-262100-
nantucket sound-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 50 kt. seas 6 to
9 ft. wave detail: e 8 ft at 8 seconds and s 3 ft at 10 seconds.
patchy fog. showers. a slight chance of tstms this morning, then
a chance of tstms this afternoon. vsby 1 nm or less, increasing
to 1 to 3 nm this afternoon. 
.tonight...ne winds 25 to 30 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: e 7 ft at 7 seconds and s 4 ft at 10 seconds.
patchy fog. showers. vsby 1 nm or less, increasing to 1 to 3 nm
after midnight. 
.sun...e winds 20 to 25 kt with gusts up to 45 kt, diminishing to
15 to 20 kt with gusts up to 35 kt in the afternoon. seas 5 to
7 ft. wave detail: e 6 ft at 9 seconds and s 3 ft at 10 seconds.
patchy fog. showers likely. vsby 1 to 3 nm. 
.sun night...e winds around 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft. wave detail: e 4 ft at
9 seconds and se 3 ft at 8 seconds. showers. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: e 3 ft at 9 seconds and se 2 ft at
7 seconds. showers, mainly in the morning. 
.mon night...se winds 5 to 10 kt, becoming s after midnight. seas
2 to 4 ft. wave detail: s 2 ft at 8 seconds and e 2 ft at
9 seconds. 
.tue through wed...w winds 5 to 10 kt. seas 2 to 4 ft. 
.wed night...sw winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074857

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz233-262100-
vineyard sound-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 55 kt. seas 5 to
7 ft. wave detail: ne 6 ft at 6 seconds and s 5 ft at 6 seconds.
patchy fog. showers. a slight chance of tstms this morning, then
a chance of tstms this afternoon. vsby 1 to 3 nm. 
.tonight...ne winds 25 to 30 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: ne 7 ft at 6 seconds and se 2 ft at
10 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.sun...ne winds 20 to 25 kt, becoming e 15 to 20 kt in the
afternoon. gusts up to 45 kt. seas 4 to 6 ft. wave detail: ne
6 ft at 7 seconds and s 4 ft at 10 seconds. patchy fog. showers
likely. a chance of tstms in the afternoon. vsby 1 to 3 nm in the
morning. 
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft, subsiding to 2 to 3 ft
after midnight. wave detail: s 4 ft at 9 seconds and ne 2 ft at
4 seconds, becoming s 3 ft at 7 seconds and ne 2 ft at 6 seconds.
showers. a chance of tstms in the evening. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon...e winds around 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 7 seconds. showers, mainly in the morning.
.mon night...se winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: s 3 ft at 8 seconds and e 1 foot at
12 seconds. a chance of showers in the evening. 
.tue through wed night...sw winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074858

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz234-262100-
buzzards bay-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 55 kt. seas 4 to
6 ft. wave detail: ne 5 ft at 6 seconds. patchy fog. showers. a
slight chance of tstms this morning, then a chance of tstms this
afternoon. vsby 1 to 3 nm. 
.tonight...ne winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. gusts up to 45 kt. seas 4 to 6 ft. wave detail: ne 4 ft
at 4 seconds and sw 4 ft at 5 seconds. patchy fog. showers. vsby
1 to 3 nm. 
.sun...ne winds 15 to 20 kt with gusts up to 45 kt. seas 4 to
6 ft. wave detail: ne 4 ft at 4 seconds and se 3 ft at 9 seconds.
patchy fog. showers likely. a chance of tstms in the afternoon.
vsby 1 to 3 nm. 
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft, subsiding to 2 to 3 ft
after midnight. wave detail: se 3 ft at 7 seconds and ne 2 ft at
4 seconds, becoming e 3 ft at 6 seconds. showers. a chance of
tstms in the evening. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...e winds around 10 kt. seas around 2 ft. wave detail: ne
2 ft at 6 seconds. showers, mainly in the morning. 
.mon night...se winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and e 1 foot at
17 seconds. a chance of showers in the evening. 
.tue through wed night...sw winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074859

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz235-262100-
rhode island sound-
403 am edt sat sep 26 2026

...storm warning in effect through late tonight...

.today...ne winds 30 to 35 kt with gusts up to 55 kt. seas 7 to
10 ft. wave detail: ne 10 ft at 8 seconds and nw 5 ft at
7 seconds. patchy fog. showers. a slight chance of tstms this
morning, then a chance of tstms this afternoon. vsby 1 to 3 nm. 
.tonight...ne winds 30 to 35 kt, diminishing to 25 to 30 kt after
midnight. gusts up to 55 kt. seas 7 to 10 ft. wave detail: ne
10 ft at 8 seconds and w 2 ft at 6 seconds. patchy fog. showers.
vsby 1 to 3 nm. 
.sun...ne winds 20 to 25 kt with gusts up to 50 kt, becoming e
15 to 20 kt with gusts up to 40 kt in the afternoon. seas 6 to
9 ft. wave detail: ne 9 ft at 8 seconds and se 7 ft at
10 seconds. patchy fog. showers likely. a chance of tstms in the
afternoon. vsby 1 to 3 nm. 
.sun night...ne winds 15 to 20 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 4 to 6 ft. wave detail: s 6 ft at
9 seconds and ne 3 ft at 5 seconds. showers. a chance of tstms in
the evening. patchy fog in the evening with vsby 1 to 3 nm. 
.mon...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 4 ft. wave detail: s 4 ft at 8 seconds and ne 2 ft at
7 seconds. showers, mainly in the morning. 
.mon night...se winds around 10 kt, becoming sw after midnight.
seas 3 to 4 ft. wave detail: s 4 ft at 8 seconds and e 1 foot at
10 seconds. a chance of showers in the evening. 
.tue and tue night...w winds 10 to 15 kt, diminishing to 5 to
10 kt. seas 2 to 4 ft. 
.wed and wed night...w winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074862

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz236-262100-
narragansett bay-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 50 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. patchy fog.
showers. a chance of tstms this afternoon. vsby 1 to 3 nm. 
.tonight...ne winds 20 to 25 kt with gusts up to 45 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. patchy fog.
showers. vsby 1 to 3 nm. 
.sun...ne winds 15 to 20 kt with gusts up to 45 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. patchy fog. showers
likely. a chance of tstms in the afternoon. vsby 1 to 3 nm. 
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. waves 2 to 3 ft. showers. a chance of
tstms in the evening. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...ne winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. waves 2 to 3 ft. showers.
.mon night...e winds around 10 kt, becoming sw after midnight.
waves 2 to 3 ft. a chance of showers in the evening. 
.tue through wed night...sw winds 5 to 10 kt. waves 2 to 3 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 260803
cwfbox
expires:202609262100;;074850

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz250-262100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
13 ft. wave detail: e 13 ft at 11 seconds and e 7 ft at
6 seconds. patchy fog. showers. a chance of tstms this afternoon.
vsby 1 nm or less. 
.tonight...ne winds around 30 kt with gusts up to 50 kt. seas
11 to 14 ft. wave detail: e 14 ft at 10 seconds and se 4 ft at
8 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.sun...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
13 ft, subsiding to 9 to 12 ft in the afternoon. wave detail: e
13 ft at 10 seconds, becoming e 12 ft at 9 seconds and se 3 ft at
9 seconds. patchy fog. showers likely. vsby 1 to 3 nm. 
.sun night...ne winds 20 to 25 kt. gusts up to 40 kt, decreasing
to 30 kt after midnight. seas 7 to 10 ft. wave detail: e 10 ft at
9 seconds and se 2 ft at 9 seconds. showers. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 6 to
9 ft. wave detail: e 9 ft at 9 seconds and se 2 ft at 8 seconds.
showers.
.mon night...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 5 to 7 ft. wave
detail: e 7 ft at 8 seconds and se 2 ft at 7 seconds. showers
likely, mainly in the evening. 
.tue...nw winds 5 to 10 kt. seas 4 to 6 ft. a chance of showers. 
.tue night and wed...nw winds around 5 kt, becoming w around
5 kt. seas 3 to 5 ft. 
.wed night...sw winds 5 to 10 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 260803
cwfbox
expires:202609262100;;074853

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz254-262100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
15 ft. wave detail: e 15 ft at 11 seconds and sw 4 ft at
8 seconds. patchy fog. showers. a slight chance of tstms this
morning, then a chance of tstms this afternoon. vsby 1 nm or
less. 
.tonight...ne winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. gusts up to 45 kt. seas 10 to 14 ft. wave detail: e
14 ft at 10 seconds and se 8 ft at 9 seconds. patchy fog.
showers. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.sun...e winds 20 to 25 kt with gusts up to 45 kt. seas 9 to
12 ft. wave detail: ne 12 ft at 10 seconds and s 6 ft at
10 seconds. patchy fog. a chance of showers in the morning.
showers likely in the afternoon. vsby 1 to 3 nm. 
.sun night...e winds 15 to 20 kt with gusts up to 30 kt. seas
6 to 9 ft. wave detail: ne 8 ft at 9 seconds and s 5 ft at
9 seconds. showers. patchy fog in the evening with vsby 1 to
3 nm. 
.mon...e winds 10 to 15 kt with gusts up to 25 kt. seas 5 to
8 ft. wave detail: ne 7 ft at 9 seconds and s 3 ft at 7 seconds.
a chance of showers. 
.mon night...se winds 10 to 15 kt, becoming s 5 to 10 kt after
midnight. seas 5 to 7 ft. wave detail: e 6 ft at 8 seconds and s
3 ft at 8 seconds. a chance of showers in the evening. 
.tue...w winds around 10 kt. seas 4 to 6 ft. 
.tue night and wed...w winds 5 to 10 kt. seas 3 to 5 ft. 
.wed night...sw winds around 5 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 260803
cwfbox
expires:202609262100;;074854

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat sep 26 2026

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


anz255-262100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt sat sep 26 2026

...storm warning in effect through this evening...

.today...ne winds 30 to 35 kt. gusts up to 55 kt, decreasing to
45 kt this afternoon. seas 10 to 14 ft. wave detail: ne 14 ft at
11 seconds and s 5 ft at 10 seconds. patchy fog. showers. a
slight chance of tstms this morning, then a chance of tstms this
afternoon. vsby 1 to 3 nm, decreasing to 1 nm or less this
afternoon. 
.tonight...ne winds 25 to 30 kt with gusts up to 45 kt. seas 9 to
13 ft. wave detail: ne 13 ft at 10 seconds and sw 11 ft at
9 seconds. patchy fog. showers. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.sun...e winds 20 to 25 kt with gusts up to 45 kt, diminishing to
15 to 20 kt with gusts up to 35 kt in the afternoon. seas 8 to
11 ft, subsiding to 6 to 9 ft in the afternoon. wave detail: e
9 ft at 10 seconds and s 8 ft at 10 seconds, becoming s 8 ft at
9 seconds and e 5 ft at 9 seconds. patchy fog. a chance of
showers. vsby 1 to 3 nm in the morning. 
.sun night...e winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 5 to 7 ft. wave detail: s 6 ft at
9 seconds and e 5 ft at 9 seconds. showers. patchy fog in the
evening with vsby 1 to 3 nm. 
.mon...e winds 5 to 10 kt. seas 4 to 6 ft. wave detail: sw 5 ft
at 8 seconds and e 4 ft at 9 seconds. showers likely in the
morning. 
.mon night...s winds around 10 kt, becoming sw after midnight.
seas 4 to 6 ft. wave detail: sw 5 ft at 8 seconds and e 4 ft at
9 seconds. 
.tue...w winds 10 to 15 kt. seas 4 to 6 ft. 
.tue night...w winds 5 to 10 kt. seas 3 to 5 ft. 
.wed and wed night...w winds around 5 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.

$$