fzus51 kbox 152005
cwfbox
expires:202603160900;;735007

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

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


anz235-160900-
rhode island sound-
405 pm edt sun mar 15 2026

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

.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 4 seconds and s
2 ft at 7 seconds, becoming s 6 ft at 6 seconds and se 1 foot at
10 seconds. a chance of showers 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, becoming s 11 ft at 8 seconds and s 2 ft at
5 seconds. patchy fog in the morning, then areas of dense fog in
the afternoon. showers in the morning, then a chance of showers
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 5 seconds, becoming s 16 ft
at 10 seconds and s 2 ft at 5 seconds. areas of dense fog.
showers in the evening. rain after midnight. 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 7 to 10 ft in the afternoon. wave detail: s
13 ft at 11 seconds and w 3 ft at 6 seconds, becoming s 10 ft at
11 seconds and w 3 ft at 5 seconds. rain likely in the morning. 
.tue night...w winds 25 to 30 kt, becoming nw 20 to 25 kt after
midnight. seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight.
wave detail: s 10 ft at 10 seconds and w 4 ft at 5 seconds,
becoming s 8 ft at 10 seconds and w 4 ft at 5 seconds. 
.wed...nw winds 15 to 20 kt, becoming sw 5 to 10 kt in the
afternoon. seas 4 to 6 ft. wave detail: s 6 ft at 10 seconds and
w 2 ft at 5 seconds. 
.wed night...s winds 5 to 10 kt. seas 2 to 4 ft. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 3 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 152005
cwfbox
expires:202603160900;;735010

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

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


anz236-160900-
narragansett bay-
405 pm edt sun mar 15 2026

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

.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. showers 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. showers. 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. showers in
the evening. rain after midnight. 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, diminishing to 10 to 15 kt
after midnight. gusts up to 30 kt. waves 4 to 6 ft, subsiding to
2 to 3 ft after midnight. at the bay entrance, waves 4 to 6 ft. 
.wed and wed night...s winds 5 to 10 kt with gusts up to 20 kt.
waves 2 to 3 ft. 
.thu through fri...sw winds 5 to 10 kt. waves around 2 ft. 
.fri night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft. a chance of rain.  

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 152005
cwfbox
expires:202603160900;;735008

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

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


anz237-160900-
block island sound-
405 pm edt sun mar 15 2026

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

.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 3 ft at 5 seconds and se 1 foot at 10 seconds,
becoming s 5 ft at 6 seconds and se 1 foot at 10 seconds. patchy
fog after midnight. showers 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: s
8 ft at 9 seconds and se 7 ft at 6 seconds, becoming se 9 ft at
7 seconds. patchy fog in the morning. areas of dense fog in the
afternoon. showers. 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 9 seconds and sw 1 foot at 5 seconds, becoming s 15 ft
at 10 seconds and sw 3 ft at 5 seconds. areas of dense fog.
showers. 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, becoming nw 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...nw winds 10 to 15 kt with gusts up to 20 kt, becoming sw
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: s 6 ft
at 10 seconds and w 2 ft at 4 seconds. 
.wed night...s winds 5 to 10 kt. seas 2 to 4 ft. 
.thu through fri...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.fri night...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
rain.  

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 152005
cwfbox
expires:202603160900;;735002

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

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


anz255-160900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 pm edt sun mar 15 2026

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

.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: 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 showers 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 10 seconds and se 8 ft at 6 seconds, becoming s 12 ft at
9 seconds and s 2 ft at 5 seconds. patchy fog in the morning.
areas of dense fog in the afternoon. showers in the morning. a
chance of showers 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 10 seconds and s 2 ft at 5 seconds. areas of dense fog.
showers in the evening. rain after midnight. 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 9 to 13 ft in the afternoon. wave detail: s
15 ft at 11 seconds and sw 2 ft at 6 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, diminishing to 20 to 25 kt
after midnight. seas 9 to 13 ft, subsiding to 8 to 11 ft after
midnight. wave detail: s 11 ft at 10 seconds and w 8 ft at
8 seconds, becoming s 9 ft at 10 seconds and w 7 ft at 7 seconds.
.wed...nw winds 15 to 20 kt with gusts up to 25 kt, becoming w
5 to 10 kt in the afternoon. seas 6 to 9 ft, subsiding to 4 to
6 ft in the afternoon. wave detail: s 7 ft at 10 seconds and w
5 ft at 7 seconds, becoming s 6 ft at 10 seconds and w 3 ft at
6 seconds. 
.wed night...s winds 5 to 10 kt. seas 3 to 5 ft. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 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.

$$