fzus51 kbox 271703
cwfbox
expires:202608280600;;452646

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz231-280600-
cape cod bay-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 1 foot at 3 seconds and e 1 foot
at 11 seconds. 
.tonight...s winds 5 to 10 kt. gusts up to 20 kt in the evening.
seas around 2 ft. wave detail: s 1 foot at 3 seconds and e 1 foot
at 11 seconds. 
.fri...s winds around 5 kt. seas around 2 ft. wave detail: s
1 foot at 2 seconds and e 1 foot at 13 seconds. 
.fri night...sw winds around 5 kt, becoming nw after midnight.
seas 1 foot or less, then around 2 ft after midnight. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 6 seconds,
becoming w 1 foot at 2 seconds and e 1 foot at 10 seconds. 
.sat...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 3 seconds and ne 1 foot at 10 seconds. 
.sat night...se winds around 5 kt, becoming sw after midnight.
seas around 2 ft in the evening, then 1 foot or less. wave
detail: n 1 foot at 4 seconds, becoming sw 1 foot at 3 seconds
and ne 1 foot at 5 seconds. 
.sun through mon night...se winds 5 to 10 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 271703
cwfbox
expires:202608280600;;452650

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz232-280600-
nantucket sound-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 3 seconds and e 1 foot
at 9 seconds. 
.tonight...s winds 10 to 15 kt. seas around 2 ft. wave detail: s
2 ft at 3 seconds and e 1 foot at 9 seconds. scattered showers. 
.fri...s winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 5 seconds and e 1 foot at 9 seconds. 
.fri night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: sw 1 foot at 4 seconds and se 1 foot at
8 seconds. 
.sat...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 4 seconds and e 1 foot at 8 seconds. 
.sat night...se winds around 5 kt, becoming sw after midnight.
seas around 2 ft. wave detail: s 1 foot at 5 seconds and e 1 foot
at 7 seconds. 
.sun through mon night...se winds 10 to 15 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452651

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz233-280600-
vineyard sound-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and se 1 foot at 9 seconds. 
.tonight...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and
se 1 foot at 9 seconds. patchy fog. 
.fri...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw 2 ft
at 6 seconds and se 2 ft at 9 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: s 2 ft at 7 seconds. 
.sat...n winds 5 to 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: w 2 ft at 6 seconds and e 2 ft at
8 seconds. 
.sat night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: se 1 foot at 6 seconds. 
.sun through mon night...s winds 10 to 15 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452652

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz234-280600-
buzzards bay-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 2 ft at 4 seconds and se 1 foot at
8 seconds. 
.tonight...s winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas around 2 ft. wave
detail: s 2 ft at 4 seconds and se 1 foot at 9 seconds. patchy
fog. vsby 1 to 3 nm after midnight. 
.fri...s winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 6 seconds and se 1 foot at 11 seconds. patchy fog in the
morning. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: s 2 ft at 7 seconds. 
.sat...n winds around 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 6 seconds and ne 1 foot at
9 seconds. 
.sat night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: se 1 foot at 5 seconds. 
.sun through mon night...s winds 10 to 15 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452653

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz235-280600-
rhode island sound-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 2 ft at 4 seconds and se 2 ft at
8 seconds. 
.tonight...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: s 3 ft at 5 seconds and se
2 ft at 9 seconds. patchy fog. vsby 1 to 3 nm after midnight. 
.fri...s winds 5 to 10 kt. seas 2 to 4 ft. wave detail: s 3 ft at
7 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds. 
.sat...n winds 5 to 10 kt, becoming e in the afternoon. seas 2 to
3 ft. wave detail: w 2 ft at 6 seconds and se 2 ft at 8 seconds. 
.sat night...s winds 5 to 10 kt, becoming sw after midnight. seas
2 to 3 ft. wave detail: s 2 ft at 7 seconds. 
.sun through mon night...s winds 10 to 15 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452656

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz236-280600-
narragansett bay-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.tonight...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves around 2 ft. patchy fog. vsby 1 to 3 nm. 
.fri...s winds 5 to 10 kt. waves around 2 ft. patchy fog in the
morning with vsby 1 to 3 nm. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
waves around 2 ft. 
.sat and sat night...sw winds 5 to 10 kt. waves around 2 ft. 
.sun through mon night...s winds 10 to 15 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452644

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz250-280600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt thu aug 27 2026

.this afternoon...s winds 10 to 15 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 3 ft at 4 seconds and se 3 ft at
9 seconds. 
.tonight...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: s 3 ft at 4 seconds and se 3 ft at 9 seconds. 
.fri...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds and s 2 ft at 4 seconds. 
.fri night...s winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 1 foot at
3 seconds. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 8 seconds and nw 2 ft at 3 seconds. 
.sat night...s winds 5 to 10 kt, becoming sw after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 7 seconds and sw 1 foot at
2 seconds. 
.sun through mon night...se winds 5 to 10 kt with gusts up to
20 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 271703
cwfbox
expires:202608280600;;452647

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz254-280600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 pm edt thu aug 27 2026

.this afternoon...s winds around 10 kt with gusts up to 20 kt.
seas around 3 ft. wave detail: se 3 ft at 9 seconds and s 2 ft at
3 seconds. 
.tonight...s winds around 10 kt. seas around 3 ft. wave detail:
se 3 ft at 9 seconds and s 2 ft at 4 seconds. 
.fri...s winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se 3 ft
at 7 seconds. 
.fri night...sw winds 5 to 10 kt, becoming w after midnight. seas
2 to 4 ft. wave detail: s 3 ft at 7 seconds. 
.sat...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se 3 ft
at 8 seconds and nw 2 ft at 5 seconds. 
.sat night...se winds around 5 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and w 1 foot at
5 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. 
.sun night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.mon and mon night...nw winds 10 to 15 kt, becoming se 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 271703
cwfbox
expires:202608280600;;452648

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt thu aug 27 2026

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


anz255-280600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt thu aug 27 2026

.this afternoon...s winds around 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 9 seconds and sw 2 ft at 5 seconds. 
.tonight...s winds 10 to 15 kt. seas 3 to 4 ft. wave detail: s
3 ft at 6 seconds and se 2 ft at 9 seconds. scattered showers. 
.fri...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 3 ft at
7 seconds. 
.fri night...sw winds 5 to 10 kt, becoming w after midnight. seas
3 to 4 ft. wave detail: s 3 ft at 7 seconds. 
.sat...n winds 5 to 10 kt. seas 2 to 4 ft. wave detail: sw 3 ft
at 6 seconds and se 3 ft at 7 seconds. 
.sat night...se winds around 5 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: s 2 ft at 7 seconds. 
.sun through mon night...se 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.

$$