fzus51 kbox 150506
cwfbox
expires:202603151800;;694962

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

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


anz235-151800-
rhode island sound-
105 am edt sun mar 15 2026

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

.rest of tonight...nw winds 15 to 20 kt. seas 3 to 5 ft. wave
detail: sw 5 ft at 8 seconds and nw 3 ft at 4 seconds. 
.sun...n winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: sw 3 ft at 7 seconds and e 2 ft at
3 seconds. 
.sun night...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
3 to 5 ft after midnight. wave detail: se 3 ft at 4 seconds and s
1 foot at 7 seconds, becoming s 5 ft at 6 seconds and se 1 foot
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 12 ft in the afternoon. wave detail: se
9 ft at 7 seconds, becoming s 12 ft at 9 seconds and se 2 ft at
5 seconds. patchy fog in the morning. areas of dense fog in the
afternoon. rain with a chance of tstms. 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 17 ft after midnight. wave detail:
s 14 ft at 9 seconds and s 1 foot at 4 seconds, becoming s 17 ft
at 11 seconds and s 2 ft at 6 seconds. rain. areas of dense fog
in the evening with 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 sw 6 ft at 9 seconds, becoming s 11 ft at
11 seconds and sw 9 ft at 10 seconds. a chance of rain 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. 
.wed...w winds 15 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 150506
cwfbox
expires:202603151800;;694965

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

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


anz236-151800-
narragansett bay-
105 am edt sun mar 15 2026

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

.rest of tonight...nw winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.sun...n winds 5 to 10 kt, becoming se in the afternoon. waves
around 2 ft. 
.sun night...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. a chance of rain
after midnight with vsby 1 to 3 nm. 
.mon...s winds 25 to 30 kt with gusts up to 35 kt. waves 5 to
7 ft. 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. waves
6 to 9 ft. at the bay entrance, waves 8 to 11 ft, building to
9 to 13 ft after midnight. rain. areas of dense fog in the
evening with 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. a chance of rain 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 150506
cwfbox
expires:202603151800;;694963

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

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


anz237-151800-
block island sound-
105 am edt sun mar 15 2026

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

.rest of tonight...nw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: s 3 ft at 8 seconds and w 2 ft at
4 seconds. 
.sun...ne winds 5 to 10 kt, becoming e in the afternoon. seas
2 to 3 ft. wave detail: e 2 ft at 3 seconds and s 2 ft at
8 seconds. 
.sun night...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 5 seconds and se 1 foot at 10 seconds,
becoming se 5 ft at 6 seconds and se 1 foot at 10 seconds. patchy
fog after midnight. rain likely after midnight with vsby 1 to
3 nm. 
.mon...s winds 25 to 30 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 and se 2 ft at
6 seconds. patchy fog in the morning. areas of dense fog in the
afternoon. rain with a chance of tstms. 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 s 6 ft at 9 seconds, becoming s 15 ft
at 11 seconds and sw 4 ft at 7 seconds. rain. areas of dense fog
in the evening. 
.tue...w winds 20 to 25 kt with gusts up to 30 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 5 ft at 5 seconds. a chance of rain 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. 
.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 150506
cwfbox
expires:202603151800;;694957

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

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


anz255-151800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
105 am edt sun mar 15 2026

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

.rest of tonight...nw winds 15 to 20 kt with gusts up to 25 kt.
seas 5 to 7 ft. wave detail: w 7 ft at 8 seconds and nw 3 ft at
5 seconds. 
.sun...n winds 10 to 15 kt, becoming e in the afternoon. seas
3 to 5 ft, subsiding to 2 to 3 ft in the afternoon. wave detail:
sw 5 ft at 8 seconds and n 1 foot at 4 seconds, becoming sw 3 ft
at 7 seconds and n 1 foot at 4 seconds. 
.sun night...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: s 3 ft at 5 seconds and se 1 foot at
10 seconds, becoming s 6 ft at 6 seconds and se 1 foot 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 and se 1 foot at 10 seconds, becoming s 13 ft
at 9 seconds and se 2 ft at 5 seconds. patchy fog in the morning.
areas of dense fog in the afternoon. rain. 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 6 seconds, becoming s 18 ft
at 11 seconds and sw 2 ft at 6 seconds. rain. areas of dense fog
in the evening with vsby 1 nm or less. 
.tue...w winds 25 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
7 ft at 9 seconds, becoming sw 11 ft at 10 seconds and s 11 ft at
11 seconds. rain likely in the morning. 
.tue night...w winds 25 to 30 kt. seas 9 to 13 ft, subsiding to
7 to 10 ft after midnight. 
.wed...w winds 15 to 20 kt. seas 5 to 7 ft. 
.wed night through thu night...se winds 5 to 10 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.

$$