fzus51 kbox 160803
cwfbox
expires:202605162100;;643829

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz231-162100-
cape cod bay-
403 am edt sat may 16 2026

...small craft advisory in effect from noon edt today through
this evening...

.today...sw winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt this afternoon. seas 2 to 4 ft. wave detail: sw
2 ft at 3 seconds and ne 1 foot at 8 seconds. 
.tonight...sw winds around 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 in the evening, then 1 foot or less. wave detail: w
1 foot at 3 seconds and se 1 foot at 9 seconds, becoming nw
1 foot at 3 seconds and e 1 foot at 8 seconds. 
.mon...e winds around 5 kt, becoming se in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail: e
1 foot at 3 seconds and nw 1 foot at 3 seconds, becoming e 1 foot
at 4 seconds. 
.mon night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: s 1 foot at 2 seconds
and ne 1 foot at 4 seconds. 
.tue through wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.wed night...sw winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643833

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz232-162100-
nantucket sound-
403 am edt sat may 16 2026

...small craft advisory in effect from noon edt today through
this evening...

.today...sw winds 10 to 15 kt. gusts up to 20 kt this afternoon.
seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and e 3 ft at
7 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: sw 3 ft at 4 seconds and se 2 ft at 8 seconds.
.sun...sw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 2 to 4 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...e winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: ne 1 foot at 5 seconds and sw 1 foot at
5 seconds. 
.mon night...s winds 10 to 15 kt. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and e 1 foot at 7 seconds. 
.tue through wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643834

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz233-162100-
vineyard sound-
403 am edt sat may 16 2026

...small craft advisory in effect from noon edt today through
this evening...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and
s 2 ft at 9 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: sw 4 ft at 6 seconds and e 2 ft at 9 seconds. 
.sun...sw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 2 to 4 ft. wave detail: sw 4 ft at 7 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 4 ft. wave detail: sw 3 ft
at 7 seconds and se 2 ft at 13 seconds. 
.mon...e winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 7 seconds and e 1 foot at
5 seconds. 
.mon night...s winds 10 to 15 kt. seas around 2 ft. wave detail:
s 2 ft at 7 seconds and se 1 foot at 8 seconds. 
.tue through wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643835

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz234-162100-
buzzards bay-
403 am edt sat may 16 2026

...small craft advisory in effect from noon edt today through
this evening...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 4 seconds and s 1 foot at 10 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: sw 3 ft at 5 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 6 seconds and se 2 ft at
10 seconds. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n around 5 kt after midnight. seas 2 to 3 ft. wave detail: sw
2 ft at 6 seconds and se 2 ft at 11 seconds. 
.mon...e winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: e 1 foot at 3 seconds and sw 1 foot at
7 seconds. 
.mon night...s winds 5 to 10 kt. seas around 2 ft. wave detail:
se 1 foot at 7 seconds. 
.tue through wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643836

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz235-162100-
rhode island sound-
403 am edt sat may 16 2026

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

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. seas 3 to 4 ft. wave detail: sw 4 ft at 4 seconds and
se 4 ft at 10 seconds. 
.tonight...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 3 ft at 9 seconds.
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 7 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 5 ft. wave detail: sw 4 ft
at 7 seconds and se 3 ft at 11 seconds. 
.mon...e winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
8 seconds. 
.mon night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 7 seconds and se 2 ft at 8 seconds. 
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.tue night and wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643839

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz236-162100-
narragansett bay-
403 am edt sat may 16 2026

.today...sw winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. waves 2 to 3 ft. 
.tonight...sw winds 10 to 15 kt with gusts up to 25 kt. waves
2 to 3 ft. 
.sun...sw winds 5 to 10 kt, becoming w 10 to 15 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...e winds 5 to 10 kt, becoming s in the afternoon. waves
around 2 ft. 
.mon night...s winds 5 to 10 kt. waves around 2 ft. 
.tue through wed...sw winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643827

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz250-162100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt sat may 16 2026

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

.today...sw winds around 10 kt, becoming s 15 to 20 kt with gusts
up to 25 kt this afternoon. seas 4 to 5 ft. wave detail: e 5 ft
at 10 seconds and sw 3 ft at 4 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 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 2 to 4 ft. wave detail: sw 4 ft at 5 seconds and se 3 ft at
9 seconds. 
.sun night...nw winds 5 to 10 kt, becoming ne after midnight.
seas 2 to 3 ft. wave detail: se 2 ft at 8 seconds and w 1 foot at
3 seconds. 
.mon...e winds around 5 kt, becoming se 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: s 2 ft at
3 seconds and se 2 ft at 8 seconds. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: s 3 ft at 4 seconds and se 2 ft at
8 seconds. 
.tue and tue night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.wed and wed night...sw winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. seas 2 to 4 ft. a chance of showers.  

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 160803
cwfbox
expires:202605162100;;643830

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz254-162100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am edt sat may 16 2026

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

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

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 160803
cwfbox
expires:202605162100;;643831

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sat may 16 2026

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


anz255-162100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt sat may 16 2026

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

.today...sw winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. seas 3 to 5 ft. wave detail: se
5 ft at 10 seconds and sw 3 ft at 5 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 6 seconds and se 4 ft at 9 seconds.
.sun...sw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 7 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 2 ft at 8 seconds. 
.mon...e winds around 10 kt, becoming se in the afternoon. seas
2 to 4 ft. wave detail: sw 3 ft at 7 seconds and se 2 ft at
9 seconds. 
.mon night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds. 
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.tue night and wed...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. a chance of showers.  

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.

$$