fzus51 kbox 151705
cwfbox
expires:202603160600;;725041

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sun mar 15 2026

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


anz235-160600-
rhode island sound-
104 pm edt sun mar 15 2026

...storm warning in effect from monday afternoon through tuesday
morning...

.this afternoon...se winds around 10 kt. seas around 2 ft. wave
detail: e 2 ft at 6 seconds and e 1 foot at 10 seconds. 
.tonight...se winds 15 to 20 kt, increasing to 20 to 25 kt with
gusts up to 30 kt after midnight. seas 2 to 3 ft, building to
4 to 6 ft after midnight. wave detail: se 3 ft at 5 seconds and
se 1 foot at 10 seconds, becoming se 6 ft at 10 seconds and se
5 ft at 5 seconds. a chance of rain after midnight. 
.mon...s winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft, building to 8 to 11 ft in the afternoon. wave detail: se
9 ft at 8 seconds and se 3 ft at 5 seconds, becoming s 11 ft at
9 seconds and s 2 ft at 4 seconds. patchy fog in the morning,
then areas of dense fog in the afternoon. rain in the morning,
then a chance of rain and tstms in the afternoon. vsby 1 nm or
less. 
.mon night...s winds 30 to 40 kt with gusts up to 50 kt. seas
10 to 14 ft, building to 12 to 16 ft after midnight. wave detail:
s 14 ft at 10 seconds and s 2 ft at 4 seconds, becoming s 16 ft
at 11 seconds and sw 2 ft at 5 seconds. areas of dense fog. rain.
vsby 1 nm or less. 
.tue...w winds 25 to 30 kt with gusts up to 35 kt. seas 9 to
13 ft, subsiding to 8 to 11 ft in the afternoon. wave detail: s
13 ft at 11 seconds and w 3 ft at 6 seconds, becoming s 11 ft at
11 seconds and w 3 ft at 5 seconds. rain likely in the morning. 
.tue night...w winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. seas 7 to 10 ft, subsiding to 5 to 7 ft after
midnight. wave detail: s 10 ft at 10 seconds and w 4 ft at
6 seconds, becoming s 7 ft at 10 seconds and w 4 ft at 5 seconds.
.wed...w winds 15 to 20 kt. seas 4 to 6 ft. 
.wed night through thu night...se winds around 10 kt. seas 2 to
4 ft.  

winds and seas higher in and near tstms.

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 151705
cwfbox
expires:202603160600;;725044

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sun mar 15 2026

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


anz236-160600-
narragansett bay-
104 pm edt sun mar 15 2026

...storm warning in effect from monday evening through late
monday night...

.this afternoon...se winds 5 to 10 kt. waves around 2 ft. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt,
increasing to 20 to 25 kt with gusts up to 30 kt after midnight.
waves 2 to 4 ft. patchy fog after midnight. rain likely after
midnight with vsby 1 to 3 nm. 
.mon...se winds 25 to 30 kt, becoming s 20 to 25 kt in the
afternoon. waves 5 to 7 ft. patchy fog in the morning. areas of
dense fog in the afternoon. rain. a chance of tstms in the
morning. vsby 1 nm or less. 
.mon night...s winds 25 to 35 kt. gusts up to 45 kt, increasing
to 55 kt after midnight. waves 6 to 9 ft. at the bay entrance,
waves 8 to 11 ft, building to 9 to 13 ft after midnight. areas of
dense fog in the evening. areas of fog after midnight. rain. vsby
1 nm or less. 
.tue...w winds 20 to 25 kt with gusts up to 35 kt. waves 5 to
7 ft. at the bay entrance, waves 7 to 10 ft, subsiding to 6 to
8 ft in the afternoon. rain likely in the morning. 
.tue night...w winds 15 to 20 kt with gusts up to 25 kt. waves
3 to 5 ft, subsiding to 2 to 3 ft after midnight. at the bay
entrance, waves 4 to 6 ft. 
.wed through thu night...s winds 5 to 10 kt. waves 2 to 3 ft.  

winds and waves higher in and near tstms.

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 151705
cwfbox
expires:202603160600;;725042

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sun mar 15 2026

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


anz237-160600-
block island sound-
104 pm edt sun mar 15 2026

...storm warning in effect from monday afternoon through tuesday
morning...

.this afternoon...se winds around 10 kt. seas around 2 ft. wave
detail: e 2 ft at 5 seconds and se 1 foot at 9 seconds. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt,
increasing to 20 to 25 kt with gusts up to 30 kt after midnight.
seas 2 to 3 ft, building to 3 to 5 ft after midnight. wave
detail: se 2 ft at 4 seconds and se 1 foot at 10 seconds,
becoming se 5 ft at 5 seconds and se 2 ft at 10 seconds. patchy
fog after midnight. rain likely after midnight with vsby 1 to
3 nm. 
.mon...s winds 20 to 25 kt with gusts up to 40 kt. seas 5 to
8 ft, building to 7 to 10 ft in the afternoon. wave detail: se
8 ft at 7 seconds, becoming s 10 ft at 9 seconds. patchy fog in
the morning. areas of dense fog in the afternoon. rain. a chance
of tstms in the afternoon. vsby 1 nm or less. 
.mon night...s winds 25 to 35 kt with gusts up to 50 kt. seas
9 to 13 ft, building to 11 to 15 ft after midnight. wave detail:
s 13 ft at 10 seconds and sw 1 foot at 5 seconds, becoming s
15 ft at 11 seconds and sw 4 ft at 6 seconds. areas of dense fog.
rain. vsby 1 nm or less. 
.tue...w winds 20 to 25 kt with gusts up to 35 kt. seas 9 to
12 ft, subsiding to 7 to 10 ft in the afternoon. wave detail: s
12 ft at 11 seconds and w 4 ft at 6 seconds, becoming s 9 ft at
11 seconds and w 4 ft at 5 seconds. rain likely in the morning. 
.tue night...w winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 30 kt. seas 6 to 9 ft, subsiding to
5 to 7 ft after midnight. wave detail: s 8 ft at 11 seconds and w
4 ft at 5 seconds, becoming s 7 ft at 11 seconds and w 4 ft at
5 seconds. 
.wed...w winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. 
.wed night through thu night...se winds 5 to 10 kt. seas 2 to
4 ft.  

winds and seas higher in and near tstms.

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 151705
cwfbox
expires:202603160600;;725036

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sun mar 15 2026

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


anz255-160600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt sun mar 15 2026

...storm warning in effect from monday afternoon through tuesday
morning...

.this afternoon...se winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds and ne 1 foot at 9 seconds. 
.tonight...se winds 15 to 20 kt, increasing to 25 to 30 kt after
midnight. seas 2 to 3 ft, building to 4 to 6 ft after midnight.
wave detail: se 3 ft at 5 seconds and e 1 foot at 10 seconds,
becoming se 6 ft at 5 seconds and e 3 ft at 10 seconds. a chance
of rain after midnight. 
.mon...s winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft, building to 9 to 13 ft in the afternoon. wave detail: se
9 ft at 7 seconds, becoming s 13 ft at 9 seconds and s 2 ft at
4 seconds. patchy fog in the morning. areas of dense fog in the
afternoon. rain in the morning. a chance of rain in the
afternoon. vsby 1 nm or less. 
.mon night...s winds 30 to 40 kt with gusts up to 50 kt. seas
11 to 15 ft, building to 13 to 18 ft after midnight. wave detail:
s 15 ft at 10 seconds and s 2 ft at 5 seconds, becoming s 18 ft
at 11 seconds and s 3 ft at 5 seconds. areas of dense fog. rain.
vsby 1 nm or less. 
.tue...sw winds 25 to 30 kt with gusts up to 35 kt. seas 11 to
15 ft, subsiding to 10 to 13 ft in the afternoon. wave detail: s
15 ft at 11 seconds and sw 5 ft at 7 seconds, becoming sw 12 ft
at 11 seconds and w 7 ft at 7 seconds. patchy fog in the morning.
rain in the morning with vsby 1 to 3 nm. 
.tue night...w winds 25 to 30 kt. seas 9 to 13 ft, subsiding to
7 to 10 ft after midnight. wave detail: s 11 ft at 10 seconds and
w 9 ft at 8 seconds, becoming w 8 ft at 8 seconds and s 8 ft at
10 seconds. 
.wed...w winds 15 to 20 kt. seas 5 to 7 ft. 
.wed night...s winds 5 to 10 kt. seas 3 to 5 ft. 
.thu and thu night...se winds around 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.

$$