fzus51 kbox 150803
cwfbox
expires:202605152100;;589218

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz231-152100-
cape cod bay-
403 am edt fri may 15 2026

.today...ne winds 5 to 10 kt. seas 2 to 4 ft. wave detail: s
1 foot at 5 seconds and ne 1 foot at 5 seconds. patchy fog.
patchy drizzle this morning, then isolated showers this
afternoon. vsby 1 nm or less, increasing to 1 to 3 nm this
afternoon. 
.tonight...n winds 5 to 10 kt, becoming w after midnight. seas
3 to 5 ft. wave detail: n 1 foot at 4 seconds. patchy fog. patchy
drizzle in the evening. vsby 1 to 3 nm. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. seas 2 to 4 ft. wave detail: sw
2 ft at 3 seconds and ne 1 foot at 6 seconds. patchy fog in the
morning. 
.sat night...sw winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 2 ft at 3 seconds and e 1 foot at
8 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas around 2 ft. wave detail: sw
2 ft at 3 seconds and e 1 foot at 9 seconds. 
.sun night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: w 1 foot at 3 seconds and e 1 foot at
9 seconds. 
.mon and mon night...e winds 5 to 10 kt, becoming s. seas around
2 ft. 
.tue and tue night...sw winds 10 to 15 kt with gusts up to 25 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 150803
cwfbox
expires:202605152100;;589222

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz232-152100-
nantucket sound-
403 am edt fri may 15 2026

.today...nw winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se
3 ft at 7 seconds. patchy drizzle this morning. isolated showers
this afternoon. patchy fog this morning with vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming nw after midnight. seas
3 to 5 ft. wave detail: e 3 ft at 7 seconds and sw 1 foot at
6 seconds. patchy fog. patchy drizzle in the evening. vsby 1 to
3 nm. 
.sat...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: sw 3 ft at 4 seconds and e 3 ft at 7 seconds.
patchy fog in the morning. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
around 3 ft. wave detail: sw 3 ft at 4 seconds and se 2 ft at
8 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 4 seconds and e 1 foot at
9 seconds. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and se 1 foot at 9 seconds. 
.mon through tue night...sw 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 150803
cwfbox
expires:202605152100;;589223

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz233-152100-
vineyard sound-
403 am edt fri may 15 2026

.today...w winds 5 to 10 kt. seas 3 to 4 ft. wave detail: sw 4 ft
at 8 seconds and s 3 ft at 10 seconds. patchy drizzle this
morning. isolated showers this afternoon. patchy fog this morning
with vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming nw after midnight. seas
3 to 5 ft. wave detail: sw 2 ft at 7 seconds and se 2 ft at
9 seconds. patchy fog. vsby 1 to 3 nm. 
.sat...sw winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
seas 2 to 4 ft. wave detail: sw 3 ft at 4 seconds and se 2 ft at
9 seconds. patchy fog in the morning. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 4 ft at 5 seconds and se 1 foot at
8 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 6 seconds and se 1 foot at
8 seconds. 
.sun night...w winds 10 to 15 kt, becoming n 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 8 seconds and e
1 foot at 9 seconds. 
.mon through tue night...sw 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 150803
cwfbox
expires:202605152100;;589224

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz234-152100-
buzzards bay-
403 am edt fri may 15 2026

.today...nw winds around 5 kt, becoming w this afternoon. seas
2 to 4 ft. wave detail: s 2 ft at 10 seconds and sw 1 foot at
7 seconds. patchy drizzle this morning. isolated showers this
afternoon. patchy fog this morning with vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 4 ft. wave detail: w 1 foot at 6 seconds and e 1 foot at
8 seconds. patchy fog. vsby 1 to 3 nm. 
.sat...sw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft, building to 3 to
5 ft in the afternoon. wave detail: s 2 ft at 7 seconds, becoming
sw 3 ft at 4 seconds and se 1 foot at 8 seconds. patchy fog in
the morning. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 3 ft at 5 seconds and se 1 foot at
8 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 3 ft at 7 seconds. 
.sun night...w winds 10 to 15 kt, becoming n 5 to 10 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 7 seconds and
se 2 ft at 9 seconds. 
.mon and mon night...se winds 5 to 10 kt, becoming s. seas around
2 ft. 
.tue and tue night...sw winds 10 to 15 kt with gusts up to 20 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 150803
cwfbox
expires:202605152100;;589225

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz235-152100-
rhode island sound-
403 am edt fri may 15 2026

...small craft advisory in effect through late tonight...

.today...w winds 5 to 10 kt. seas 4 to 5 ft. wave detail: se 5 ft
at 10 seconds and sw 3 ft at 9 seconds. patchy drizzle this
morning. scattered showers this afternoon. patchy fog this
morning with vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming nw after midnight. seas
4 to 6 ft. wave detail: se 5 ft at 9 seconds and sw 1 foot at
8 seconds. patchy fog. patchy drizzle in the evening. vsby 1 to
3 nm. 
.sat...sw winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
seas 2 to 4 ft. wave detail: se 4 ft at 10 seconds and sw 3 ft at
4 seconds. patchy fog in the morning. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
around 3 ft. wave detail: sw 3 ft at 6 seconds and se 3 ft at
9 seconds. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 6 seconds and se 2 ft at 9 seconds.
.sun night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n 5 to 10 kt after midnight. seas 3 to 4 ft. wave detail: sw 4 ft
at 8 seconds and se 2 ft at 8 seconds. 
.mon through tue night...sw winds 15 to 20 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 150803
cwfbox
expires:202605152100;;589228

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz236-152100-
narragansett bay-
403 am edt fri may 15 2026

.today...nw winds 5 to 10 kt. waves 2 to 3 ft. patchy drizzle
this morning, then scattered showers this afternoon. patchy fog
this morning with vsby 1 to 3 nm. 
.tonight...n winds 5 to 10 kt, becoming w after midnight. waves
2 to 3 ft. patchy fog. scattered showers in the evening. vsby
1 to 3 nm. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves 2 to 4 ft. patchy fog in the
morning. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. 
.sun...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves 2 to 3 ft. 
.sun night...w winds 5 to 10 kt, becoming n after midnight. waves
2 to 3 ft. 
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 kt. 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 150803
cwfbox
expires:202605152100;;589216

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz250-152100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt fri may 15 2026

...small craft advisory in effect through saturday morning...

.today...ne winds 5 to 10 kt. seas 4 to 6 ft. wave detail: e 6 ft
at 10 seconds and s 1 foot at 5 seconds. patchy fog. isolated
showers with patchy drizzle. vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming w after midnight. seas
4 to 6 ft. wave detail: e 6 ft at 10 seconds and n 1 foot at
3 seconds. patchy fog. patchy drizzle in the evening. vsby 1 to
3 nm. 
.sat...sw winds 10 to 15 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 3 to 5 ft. wave detail: e 5 ft at
10 seconds and s 3 ft at 4 seconds. patchy fog in the morning. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. wave detail: s 4 ft at 5 seconds and e 4 ft at
9 seconds. 
.sun...sw winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 4 ft. wave detail: sw 3 ft at 5 seconds and se 3 ft at
9 seconds. 
.sun night...nw winds around 10 kt, becoming n after midnight.
seas 2 to 4 ft. wave detail: nw 2 ft at 3 seconds and se 2 ft at
8 seconds. 
.mon through tue night...sw winds 15 to 20 kt with gusts up to
25 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 150803
cwfbox
expires:202605152100;;589219

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz254-152100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am edt fri may 15 2026

...small craft advisory in effect through saturday morning...

.today...n winds 5 to 10 kt. seas 4 to 6 ft, building to 6 to
7 ft this afternoon. wave detail: se 6 ft at 10 seconds and s
2 ft at 9 seconds, becoming e 7 ft at 10 seconds and w 3 ft at
10 seconds. patchy fog. patchy drizzle. isolated showers this
afternoon. vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt, becoming nw after midnight. seas
5 to 7 ft. wave detail: e 7 ft at 10 seconds and w 1 foot at
9 seconds. patchy fog. patchy drizzle in the evening. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 10 to 15 kt with gusts up to 25 kt. seas 4 to
5 ft. wave detail: e 5 ft at 10 seconds and sw 3 ft at 4 seconds.
patchy fog in the morning with vsby 1 to 3 nm. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: sw 4 ft at 5 seconds and se 4 ft at
9 seconds. 
.sun...sw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 4 ft at 5 seconds and
se 3 ft at 9 seconds. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n 5 to 10 kt after midnight. seas 3 to 4 ft. wave detail: w 3 ft
at 4 seconds and se 3 ft at 8 seconds. 
.mon through tue night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 3 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 150803
cwfbox
expires:202605152100;;589220

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt fri may 15 2026

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


anz255-152100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt fri may 15 2026

...small craft advisory in effect through saturday morning...

.today...w winds 5 to 10 kt. seas 5 to 7 ft. wave detail: se 7 ft
at 10 seconds and sw 5 ft at 10 seconds. patchy fog. patchy
drizzle. isolated showers this afternoon. vsby 1 nm or less. 
.tonight...nw winds 5 to 10 kt. seas 6 to 7 ft, subsiding to 4 to
6 ft after midnight. wave detail: se 6 ft at 10 seconds and s
4 ft at 9 seconds, becoming se 6 ft at 10 seconds and sw 2 ft at
7 seconds. patchy fog. patchy drizzle in the evening. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: se 5 ft at 10 seconds and sw 3 ft at
8 seconds. patchy fog in the morning with vsby 1 nm or less. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: sw 5 ft at 6 seconds and se 4 ft at
9 seconds. 
.sun...sw winds 15 to 20 kt. seas 3 to 4 ft. wave detail: sw 4 ft
at 6 seconds and se 3 ft at 9 seconds. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n after midnight. seas 3 to 5 ft. wave detail: sw 4 ft at
7 seconds and se 3 ft at 8 seconds. 
.mon through tue night...sw winds 15 to 20 kt. seas 3 to 5 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.

$$