fzus51 kbox 182006
cwfbox
expires:202606190900;;976061

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz231-190900-
cape cod bay-
406 pm edt thu jun 18 2026

...gale warning in effect until 10 pm edt this evening...

.tonight...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. wave
detail: s 3 ft at 6 seconds and e 1 foot at 7 seconds, becoming
sw 2 ft at 4 seconds and se 2 ft at 7 seconds. a chance of
showers this evening. 
.fri...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: w 2 ft at 3 seconds and e 1 foot at 7 seconds.
.fri night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: w 2 ft at 3 seconds and e 1 foot at
8 seconds. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: w 3 ft at 4 seconds and e 1 foot at 7 seconds.
.sat night...w winds 5 to 10 kt. seas around 2 ft. wave detail: w
1 foot at 4 seconds and e 1 foot at 7 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas 1 foot or less.
wave detail: nw 1 foot at 5 seconds and se 1 foot at 10 seconds. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. showers likely. 
.mon night...s winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. showers likely. 
.tue...w winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.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 182006
cwfbox
expires:202606190900;;976065

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz232-190900-
nantucket sound-
406 pm edt thu jun 18 2026

...gale warning in effect until 10 pm edt this evening...

.tonight...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: sw 4 ft
at 6 seconds and e 1 foot at 7 seconds. a slight chance of
showers this evening. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft
at 4 seconds and s 2 ft at 8 seconds. 
.fri night...w winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail:
sw 3 ft at 4 seconds and e 1 foot at 9 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: w 4 ft at 4 seconds and s 2 ft at 8 seconds. 
.sat night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: sw 2 ft at 4 seconds and s
2 ft at 8 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 1 foot at 4 seconds and s 1 foot at 8 seconds. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of showers. 
.mon night...s winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. showers.
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.tue night...sw 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.

$$

fzus51 kbox 182006
cwfbox
expires:202606190900;;976066

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz233-190900-
vineyard sound-
406 pm edt thu jun 18 2026

...gale warning in effect until 10 pm edt this evening...

.tonight...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and se 2 ft at
8 seconds. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw
4 ft at 7 seconds and e 1 foot at 8 seconds. 
.fri night...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw 4 ft
at 9 seconds and sw 3 ft at 6 seconds. 
.sat...w 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 sw 4 ft at 8 seconds.
.sat night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: w 4 ft at 4 seconds and sw
4 ft at 6 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: sw 3 ft at 7 seconds and e 1 foot at 11 seconds. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of showers. 
.mon night...s winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. showers.
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.tue night...w 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 182006
cwfbox
expires:202606190900;;976067

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz234-190900-
buzzards bay-
406 pm edt thu jun 18 2026

...gale warning in effect until 10 pm edt this evening...

.tonight...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 3 to 5 ft. wave detail: sw 5 ft at 6 seconds and sw 4 ft at
7 seconds. a slight chance of showers this evening. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 6 seconds and s 2 ft at 8 seconds. 
.fri night...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft
at 5 seconds and sw 2 ft at 8 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: w 3 ft at 5 seconds and sw 2 ft at 8 seconds. 
.sat night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: w 3 ft at 5 seconds and s
2 ft at 8 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 5 seconds and sw 2 ft at 6 seconds. a chance of
showers through the night. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. showers likely. 
.mon night...s winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 4 ft. showers.
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.tue night...w 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 182006
cwfbox
expires:202606190900;;976068

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz235-190900-
rhode island sound-
406 pm edt thu jun 18 2026

...small craft advisory in effect through friday evening...

.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 7 ft. wave detail: sw 7 ft
at 7 seconds and se 3 ft at 8 seconds. 
.fri...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 7 seconds and e 2 ft at 8 seconds. 
.fri night...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 4 to 6 ft. wave detail: sw 6 ft
at 7 seconds and se 2 ft at 9 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot at
6 seconds. 
.sat night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: w 5 ft at 5 seconds and sw
5 ft at 8 seconds. 
.sun and sun night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: sw 3 ft at 6 seconds and sw 3 ft at 8 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. a chance of showers. 
.mon night...s winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. showers likely. 
.tue...sw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. showers likely. 
.tue night...w winds 10 to 15 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 182006
cwfbox
expires:202606190900;;976071

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz236-190900-
narragansett bay-
406 pm edt thu jun 18 2026

...small craft advisory in effect until 7 pm edt this evening...

.tonight...sw winds 15 to 20 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. waves 2 to
4 ft. a chance of showers this evening. 
.fri...w winds 10 to 15 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.fri night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves 2 to 3 ft. 
.sat...w winds around 15 kt with gusts up to 20 kt. waves 2 to
3 ft. 
.sat night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves 2 to 3 ft. 
.sun and sun night...sw winds 5 to 10 kt. waves around 2 ft. a
chance of showers through the night. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
4 ft. showers likely. 
.mon night...s winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 4 ft. showers.
.tue...w winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
4 ft. showers likely. 
.tue night...w winds 5 to 10 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 182006
cwfbox
expires:202606190900;;976059

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz250-190900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
406 pm edt thu jun 18 2026

...gale warning in effect until 10 pm edt this evening...

.tonight...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 5 to 7 ft, subsiding to 3 to 5 ft after midnight. wave
detail: s 6 ft at 7 seconds and e 4 ft at 7 seconds, becoming se
4 ft at 7 seconds and sw 3 ft at 5 seconds. a chance of showers
this evening. 
.fri...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: se 3 ft at 7 seconds and sw 2 ft at 4 seconds.
.fri night...w winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: w 3 ft at 4 seconds and se 2 ft at
7 seconds. 
.sat...w winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: w 3 ft at 4 seconds and se 2 ft at 8 seconds. 
.sat night...w winds around 10 kt. seas 2 to 3 ft. wave detail: w
2 ft at 4 seconds and ne 1 foot at 6 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 4 seconds and se 1 foot at 9 seconds. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. a chance of showers. 
.mon night...s winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 5 ft. showers.
.tue...sw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. a chance of showers. 
.tue night...sw 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.

$$

fzus51 kbox 182006
cwfbox
expires:202606190900;;976062

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz254-190900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
406 pm edt thu jun 18 2026

...small craft advisory in effect through friday evening...

.tonight...sw winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
seas 5 to 7 ft. wave detail: sw 7 ft at 7 seconds and sw 3 ft at
4 seconds. a slight chance of showers this evening. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: s 5 ft
at 8 seconds and w 3 ft at 5 seconds. 
.fri night...w winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. wave detail: s 5 ft at 8 seconds and w 3 ft at
4 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: w 4 ft at 5 seconds and s 4 ft at 8 seconds. 
.sat night...w winds 10 to 15 kt. gusts up to 25 kt in the
evening. seas 4 to 6 ft. wave detail: s 4 ft at 8 seconds and w
2 ft at 4 seconds. 
.sun and sun night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 3 ft at 8 seconds and nw 2 ft at 4 seconds. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of showers. 
.mon night...s winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. showers.
.tue...sw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. showers likely. 
.tue night...w winds 10 to 15 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 182006
cwfbox
expires:202606190900;;976063

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
406 pm edt thu jun 18 2026

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


anz255-190900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
406 pm edt thu jun 18 2026

...small craft advisory in effect through friday evening...

.tonight...sw winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 8 ft. wave detail: s 8 ft
at 7 seconds and nw 5 ft at 9 seconds. 
.fri...w winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 8 seconds and w 4 ft at 5 seconds. 
.fri night...w 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 e 1 foot at
7 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: sw 5 ft at 7 seconds and e 1 foot at
6 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. seas 5 to 7 ft,
subsiding to 3 to 5 ft after midnight. wave detail: sw 6 ft at
8 seconds and w 4 ft at 5 seconds, becoming sw 5 ft at 8 seconds
and sw 3 ft at 4 seconds. 
.sun and sun night...sw winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: sw 4 ft at 8 seconds and s 1 foot at 4 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. a chance of showers. 
.mon night...s winds 25 to 30 kt. seas 6 to 9 ft. showers.
.tue...sw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. showers likely. 
.tue night...w winds 10 to 15 kt with gusts up 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.

$$