fzus51 kbox 302004
cwfbox
expires:202607310900;;351383

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz231-310900-
cape cod bay-
404 pm edt thu jul 30 2026

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

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 302004
cwfbox
expires:202607310900;;351387

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz232-310900-
nantucket sound-
404 pm edt thu jul 30 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: w 2 ft at 4 seconds and ne 2 ft at 4 seconds.
patchy fog this evening. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: nw 2 ft at 3 seconds and ne 2 ft at
6 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 3 seconds and e 1 foot at 6 seconds. patchy fog.
vsby 1 to 3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: sw
2 ft at 3 seconds and e 1 foot at 6 seconds. patchy fog in the
morning with vsby 1 nm or less. 
.sat night and sun...s winds 10 to 15 kt. seas around 2 ft. wave
detail: sw 2 ft at 3 seconds and ne 1 foot at 6 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: s 2 ft at 3 seconds and
se 1 foot at 7 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. a chance of showers. 
.tue...w winds around 10 kt. seas 2 to 3 ft. a chance of showers.
.tue night...s 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 302004
cwfbox
expires:202607310900;;351388

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz233-310900-
vineyard sound-
404 pm edt thu jul 30 2026

.tonight...n winds 10 to 15 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: ne 2 ft at 3 seconds and sw 2 ft at
8 seconds. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: sw 2 ft at 9 seconds and w 1 foot at
4 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 8 seconds and sw 1 foot at 3 seconds. patchy fog. vsby
1 to 3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: sw 2 ft at 4 seconds
and sw 2 ft at 9 seconds. patchy fog in the morning with vsby
1 nm or less. 
.sat night and sun...s winds 10 to 15 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and sw 2 ft at 8 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 6 seconds and
se 1 foot at 12 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. a chance of showers. 
.tue...sw winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.tue night...s 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 302004
cwfbox
expires:202607310900;;351389

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz234-310900-
buzzards bay-
404 pm edt thu jul 30 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas around 2 ft. wave detail: ne
2 ft at 3 seconds and w 1 foot at 5 seconds. 
.fri...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 4 seconds and ne 1 foot at
4 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 4 seconds and e 1 foot at 6 seconds. patchy fog.
vsby 1 to 3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: sw
2 ft at 4 seconds and e 1 foot at 8 seconds. patchy fog in the
morning with vsby 1 nm or less. 
.sat night and sun...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot
at 7 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: s 2 ft at 4 seconds and s
1 foot at 7 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. a chance of showers. 
.tue and tue night...sw 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 302004
cwfbox
expires:202607310900;;351390

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz235-310900-
rhode island sound-
404 pm edt thu jul 30 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 3 to 4 ft. wave detail: s 4 ft
at 8 seconds and n 2 ft at 4 seconds. 
.fri...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 9 seconds and nw 1 foot at
4 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and sw 2 ft at 3 seconds. patchy fog. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 5 to 10 kt, becoming s 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 3 ft at 9 seconds and
sw 2 ft at 4 seconds. patchy fog in the morning with vsby 1 nm or
less. 
.sat night and sun...s winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 8 seconds and s 2 ft at 4 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: s 3 ft at 4 seconds and s
3 ft at 7 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. a chance of showers. 
.tue and tue night...sw 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 302004
cwfbox
expires:202607310900;;351393

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz236-310900-
narragansett bay-
404 pm edt thu jul 30 2026

.tonight...n winds 5 to 10 kt, becoming nw after midnight. waves
2 to 3 ft. a slight chance of showers this evening. 
.fri...nw winds around 5 kt, becoming sw in the afternoon. waves
around 2 ft. 
.fri night...sw winds 5 to 10 kt. waves around 2 ft. 
.sat...sw winds 5 to 10 kt, becoming s 10 to 15 kt in the
afternoon. waves around 2 ft. patchy fog in the morning with vsby
1 to 3 nm. 
.sat night and sun...s winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.sun night...s winds around 10 kt. waves around 2 ft. a chance of
showers after midnight. 
.mon and mon night...sw winds 10 to 15 kt, becoming w. gusts up
to 20 kt. waves 2 to 3 ft. a chance of showers. 
.tue and tue night...w winds 5 to 10 kt, becoming s. waves 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 302004
cwfbox
expires:202607310900;;351381

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz250-310900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt thu jul 30 2026

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

.tonight...n winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 3 to 4 ft. wave detail: n 4 ft
at 5 seconds and se 2 ft at 9 seconds. patchy fog this evening. a
slight chance of showers this evening. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: ne 3 ft at 6 seconds and se 3 ft at
10 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 6 seconds and se 2 ft at 9 seconds. 
.sat...sw winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 2 seconds and se 2 ft at
9 seconds. 
.sat night and sun...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 2 ft at 4 seconds and se 2 ft at
9 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: s 2 ft at 4 seconds and se
1 foot at 7 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds around 10 kt, becoming w. gusts up
to 20 kt. seas 2 to 3 ft. a chance of showers. 
.tue and tue night...sw 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 302004
cwfbox
expires:202607310900;;351384

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz254-310900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 pm edt thu jul 30 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: ne 4 ft at 6 seconds and se 4 ft at 8 seconds.
patchy fog this evening. a slight chance of showers this evening
with vsby 1 to 3 nm. 
.fri...nw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: n 3 ft
at 5 seconds and se 3 ft at 9 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
3 ft at 9 seconds and ne 2 ft at 6 seconds. patchy fog after
midnight with vsby 1 nm or less. 
.sat...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds and sw 2 ft at 3 seconds. patchy fog in the morning
with vsby 1 nm or less. 
.sat night and sun...s winds around 10 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 3 ft at 8 seconds and sw 2 ft at
4 seconds. 
.sun night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and
sw 2 ft at 3 seconds. a chance of showers after midnight. 
.mon and mon night...sw winds 15 to 20 kt, becoming w 10 to
15 kt. gusts up to 25 kt. seas 2 to 4 ft. a chance of showers. 
.tue and tue night...w winds 5 to 10 kt, becoming sw. 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 302004
cwfbox
expires:202607310900;;351385

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt thu jul 30 2026

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


anz255-310900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 pm edt thu jul 30 2026

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

$$