fzus51 kbox 191704
cwfbox
expires:202603200600;;961198

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-200600-
cape cod bay-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 8 seconds and se 1 foot at 2 seconds. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 9 seconds and s 1 foot at 2 seconds. 
.fri...w winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 2 ft at 8 seconds. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
2 to 4 ft. wave detail: s 2 ft at 3 seconds and e 2 ft at
9 seconds. a chance of rain in the evening, then rain after
midnight. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and e 2 ft at 9 seconds. a chance of rain in the
morning. 
.sat night...n winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: nw 2 ft at 4 seconds and e 2 ft at
8 seconds. 
.sun...s winds around 10 kt. seas around 2 ft. 
.sun night...s winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. rain likely. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. rain likely. 
.mon night...nw winds 15 to 20 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 191704
cwfbox
expires:202603200600;;961202

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-200600-
nantucket sound-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 9 seconds and se 1 foot at 3 seconds. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: se
1 foot at 3 seconds and se 1 foot at 9 seconds. 
.fri...w winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 1 foot at 9 seconds. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft. wave detail: s 3 ft at 4 seconds and e 2 ft at
9 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt, becoming n in
the afternoon. seas 2 to 4 ft. wave detail: sw 3 ft at 4 seconds
and e 2 ft at 9 seconds. a chance of rain in the morning. 
.sat night...n winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: w 2 ft at 4 seconds and e 1 foot at
9 seconds. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming n. gusts up to
25 kt. seas 2 to 4 ft. rain likely. 
.mon night...nw 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 191704
cwfbox
expires:202603200600;;961203

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-200600-
vineyard sound-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 9 seconds and se 1 foot at 2 seconds. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 9 seconds and s 1 foot at 2 seconds. 
.fri...w winds 5 to 10 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 2 ft at 8 seconds. 
.fri night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 4 ft. wave detail: sw 4 ft at 6 seconds and se 1 foot at
9 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.sat...w winds 10 to 15 kt, becoming n in the afternoon. seas
2 to 4 ft. wave detail: sw 3 ft at 6 seconds and e 1 foot at
9 seconds. a chance of rain in the morning. 
.sat night...ne winds 5 to 10 kt, becoming s after midnight. seas
2 to 3 ft. wave detail: sw 3 ft at 6 seconds and se 2 ft at
8 seconds. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming n. seas 2 to
4 ft. rain likely. 
.mon night...nw 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 191704
cwfbox
expires:202603200600;;961204

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-200600-
buzzards bay-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 9 seconds and s 1 foot at 2 seconds. 
.tonight...sw winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 8 seconds and s 1 foot at 2 seconds. 
.fri...w winds 5 to 10 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 2 ft at 8 seconds. 
.fri night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
2 to 4 ft. wave detail: sw 3 ft at 4 seconds and se 1 foot at
9 seconds. a chance of rain in the evening, then rain after
midnight. 
.sat...w winds 10 to 15 kt, becoming n in the afternoon. seas
2 to 3 ft. wave detail: sw 3 ft at 6 seconds and e 1 foot at
9 seconds. a chance of rain in the morning. 
.sat night...ne winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and se 1 foot
at 8 seconds. 
.sun...s winds 10 to 15 kt. seas around 2 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming n. seas 2 to
3 ft. rain likely. 
.mon night...nw winds 15 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 191704
cwfbox
expires:202603200600;;961205

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-200600-
rhode island sound-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 9 seconds. 
.tonight...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds. 
.fri...w winds 5 to 10 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 4 seconds and se 3 ft at 8 seconds. 
.fri night...sw winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: s
5 ft at 7 seconds. a chance of rain in the evening, then rain
after midnight. 
.sat...w winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 5 ft. wave detail: sw 5 ft at 7 seconds and se 2 ft at
9 seconds. a chance of rain in the morning. 
.sat night...ne winds around 10 kt, becoming s after midnight.
seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and se 2 ft at
8 seconds. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming n. seas 3 to
5 ft. rain likely. 
.mon night...nw 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.

$$

fzus51 kbox 191704
cwfbox
expires:202603200600;;961208

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-200600-
narragansett bay-
104 pm edt thu mar 19 2026

.this afternoon...s winds 5 to 10 kt. waves around 2 ft.
.tonight...sw winds 5 to 10 kt. waves around 2 ft. 
.fri...w winds around 5 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. waves 2 to 3 ft. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. waves
2 to 3 ft. rain.
.sat...nw winds around 10 kt. waves 2 to 3 ft. a chance of rain
in the morning. 
.sat night...nw winds 5 to 10 kt, becoming s after midnight.
waves 2 to 3 ft. 
.sun...s winds 5 to 10 kt. waves around 2 ft. 
.sun night and mon...s winds 10 to 15 kt, becoming n. gusts up to
20 kt. waves 2 to 3 ft. rain likely. 
.mon night...nw 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 191704
cwfbox
expires:202603200600;;961196

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-200600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt thu mar 19 2026

.this afternoon...s winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: se 4 ft at 9 seconds and s 2 ft at 3 seconds. 
.tonight...sw winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds and s
2 ft at 3 seconds. 
.fri...w winds 10 to 15 kt, becoming s 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 4 ft. wave detail: sw 3 ft
at 3 seconds and se 3 ft at 8 seconds. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: s 5 ft at 5 seconds and e 4 ft at
9 seconds. rain.
.sat...nw winds 10 to 15 kt with gusts up to 20 kt, becoming n in
the afternoon. seas 3 to 5 ft. wave detail: e 4 ft at 9 seconds
and sw 3 ft at 5 seconds. a chance of rain in the morning. 
.sat night...n winds 10 to 15 kt, becoming nw after midnight.
seas 3 to 4 ft. wave detail: nw 3 ft at 4 seconds and se 3 ft at
8 seconds. 
.sun...s winds 10 to 15 kt. seas 3 to 4 ft. a chance of rain. 
.sun night...se winds 15 to 20 kt. seas 3 to 5 ft. rain likely. 
.mon...n winds around 20 kt with gusts up to 25 kt. seas 4 to
6 ft. rain likely. 
.mon night...n winds around 20 kt with gusts up to 25 kt. seas
5 to 7 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 191704
cwfbox
expires:202603200600;;961199

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-200600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt thu mar 19 2026

.this afternoon...se winds around 5 kt. seas 3 to 4 ft. wave
detail: se 4 ft at 9 seconds and n 1 foot at 5 seconds. 
.tonight...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 9 seconds. 
.fri...w winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 25 kt in the afternoon. seas 2 to 4 ft. wave detail: sw 3 ft
at 3 seconds and se 3 ft at 8 seconds. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: s 5 ft at 5 seconds and e 4 ft at
9 seconds. rain likely after midnight. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt, becoming n in
the afternoon. seas 4 to 6 ft. wave detail: sw 4 ft at 6 seconds
and e 4 ft at 9 seconds. a chance of rain in the morning. 
.sat night...n winds around 10 kt. seas 3 to 4 ft. wave detail: w
3 ft at 5 seconds and e 3 ft at 8 seconds. 
.sun...s winds 10 to 15 kt. seas 3 to 4 ft. 
.sun night...s winds 15 to 20 kt. seas 3 to 5 ft. rain likely. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. rain likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 7 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 191704
cwfbox
expires:202603200600;;961200

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt thu mar 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-200600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt thu mar 19 2026

.this afternoon...se winds around 5 kt. seas 3 to 4 ft. wave
detail: se 4 ft at 9 seconds. 
.tonight...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds. 
.fri...w winds around 10 kt, becoming sw with gusts up to 25 kt
in the afternoon. seas 2 to 4 ft. wave detail: sw 3 ft at
3 seconds and se 3 ft at 8 seconds. 
.fri night...s winds 15 to 20 kt, becoming sw 20 to 25 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: sw 5 ft
at 6 seconds and se 3 ft at 9 seconds. rain likely after
midnight. 
.sat...w winds 15 to 20 kt, becoming nw 10 to 15 kt in the
afternoon. seas 4 to 6 ft. wave detail: sw 5 ft at 7 seconds and
e 3 ft at 9 seconds. a chance of rain in the morning. 
.sat night...ne winds around 10 kt, becoming e after midnight.
seas 3 to 5 ft. wave detail: sw 4 ft at 7 seconds and se 3 ft at
8 seconds. 
.sun...s winds 10 to 15 kt. seas 3 to 4 ft. 
.sun night...s winds 15 to 20 kt. seas 3 to 5 ft. a chance of
rain. 
.mon...n winds around 20 kt with gusts up to 25 kt. seas 5 to
7 ft. a chance of rain. 
.mon night...nw winds 20 to 25 kt. seas 5 to 7 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.

$$