fzus51 kbox 162008
cwfbox
expires:202603170900;;802917

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz231-170900-
cape cod bay-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

.tonight...s winds 25 to 35 kt, increasing to 30 to 40 kt after
midnight. gusts up to 50 kt. seas 5 to 7 ft. wave detail: s 7 ft
at 9 seconds and se 6 ft at 6 seconds. patchy fog. rain. a slight
chance of tstms this evening. vsby 1 nm or less. 
.tue...sw winds 25 to 30 kt, becoming w 15 to 20 kt in the
afternoon. seas 4 to 6 ft, subsiding to 3 to 4 ft in the
afternoon. wave detail: s 6 ft at 10 seconds and sw 5 ft at
5 seconds, becoming se 4 ft at 11 seconds and s 4 ft at
11 seconds. patchy fog in the morning. a chance of rain in the
morning with vsby 1 to 3 nm. 
.tue night...w winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: s 4 ft at 10 seconds and se 4 ft at
11 seconds. 
.wed...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: w 3 ft
at 5 seconds and se 3 ft at 11 seconds. 
.wed night through thu night...sw winds 5 to 10 kt with gusts up
to 20 kt. seas 2 to 3 ft. wave detail: n 2 ft at 5 seconds and s
2 ft at 10 seconds.
.fri...sw winds around 10 kt. seas around 2 ft. wave detail: se
2 ft at 9 seconds and w 1 foot at 3 seconds. 
.fri night through sat night...w winds 10 to 15 kt with gusts up
to 20 kt. seas 2 to 4 ft. a chance of showers. 

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 162008
cwfbox
expires:202603170900;;802921

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz232-170900-
nantucket sound-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

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

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 162008
cwfbox
expires:202603170900;;802922

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz233-170900-
vineyard sound-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

.tonight...s winds 35 to 45 kt with gusts up to 50 kt. seas 9 to
12 ft. wave detail: s 10 ft at 11 seconds and se 4 ft at
7 seconds. patchy fog. rain with a slight chance of tstms. vsby
1 nm or less. 
.tue...sw winds 25 to 30 kt, becoming w 20 to 25 kt in the
afternoon. seas 7 to 10 ft, subsiding to 5 to 8 ft in the
afternoon. wave detail: sw 9 ft at 11 seconds and se 6 ft at
10 seconds, becoming sw 6 ft at 11 seconds and se 5 ft at
11 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.tue night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. seas 5 to 7 ft. wave detail: sw 6 ft at 10 seconds and
se 5 ft at 11 seconds. 
.wed...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 3 to 5 ft. wave detail: sw 4 ft
at 9 seconds and se 3 ft at 11 seconds. 
.wed night through thu night...sw winds 5 to 10 kt. seas 2 to
3 ft. wave detail: s 3 ft at 9 seconds and se 2 ft at 10 seconds.
.fri...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and s 2 ft at 8 seconds. 
.fri night through sat night...s winds 15 to 20 kt. seas 2 to
4 ft. a chance of showers.  

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 162008
cwfbox
expires:202603170900;;802923

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz234-170900-
buzzards bay-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

.tonight...s winds 35 to 45 kt with gusts up to 50 kt. seas 6 to
9 ft. wave detail: s 7 ft at 11 seconds and sw 6 ft at 5 seconds.
patchy fog. rain with a slight chance of tstms. vsby 1 nm or
less. 
.tue...sw winds 25 to 30 kt with gusts up to 40 kt, diminishing
to 20 to 25 kt with gusts up to 30 kt in the afternoon. seas 5 to
7 ft. wave detail: sw 7 ft at 11 seconds and w 5 ft at 5 seconds.
patchy fog in the morning with vsby 1 to 3 nm. 
.tue night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. seas 3 to 5 ft. wave detail: sw 5 ft at 10 seconds and
se 4 ft at 11 seconds. 
.wed...nw winds 10 to 15 kt, becoming sw 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: sw 3 ft at 9 seconds and
se 3 ft at 11 seconds.
.wed night through thu night...sw winds 5 to 10 kt. seas around
2 ft. wave detail: s 2 ft at 9 seconds and se 2 ft at 10 seconds.
.fri...sw winds 10 to 15 kt. seas around 2 ft. wave detail: w
2 ft at 3 seconds and s 2 ft at 8 seconds. 
.fri night through sat night...sw winds 15 to 20 kt. seas 2 to
3 ft. a chance of showers.  

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 162008
cwfbox
expires:202603170900;;802924

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz235-170900-
rhode island sound-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

.tonight...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 se 2 ft at 5 seconds, becoming s 16 ft at
10 seconds and se 4 ft at 10 seconds. patchy fog. rain with a
slight chance of tstms. vsby 1 nm or less. 
.tue...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. seas 9 to 13 ft, subsiding to 7 to 10 ft in the
afternoon. wave detail: s 13 ft at 11 seconds and se 7 ft at
11 seconds, becoming s 10 ft at 11 seconds and se 7 ft at
11 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.tue night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. seas 6 to 9 ft. wave detail: sw 8 ft at 10 seconds and
se 7 ft at 11 seconds. 
.wed...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: s 6 ft
at 10 seconds and se 5 ft at 11 seconds. 
.wed night through thu night...sw winds 5 to 10 kt. seas 2 to
4 ft. wave detail: s 4 ft at 10 seconds and se 3 ft at
10 seconds. 
.fri...sw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se 3 ft
at 9 seconds and sw 2 ft at 3 seconds. 
.fri night through sat night...s winds 15 to 20 kt. seas 3 to
5 ft. a chance of showers.  

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 162008
cwfbox
expires:202603170900;;802927

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz236-170900-
narragansett bay-
408 pm edt mon mar 16 2026

...storm warning in effect from 8 pm edt this evening through
late tonight...

.tonight...s winds 25 to 35 kt. gusts up to 45 kt, increasing to
55 kt after midnight. waves 6 to 9 ft, except 9 to 12 ft at the
bay entrance. patchy fog. rain with a slight chance of tstms.
vsby 1 nm or less. 
.tue...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. 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. patchy fog in the morning with vsby 1 to 3 nm. 
.tue night...w winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. 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...nw winds 5 to 10 kt, becoming sw in the afternoon. waves
2 to 3 ft. 
.wed night through thu night...sw winds 10 to 15 kt with gusts up
to 20 kt. waves 2 to 3 ft. 
.fri...sw winds 5 to 10 kt. waves 2 to 3 ft. 
.fri night through sat night...s winds 10 to 15 kt with gusts up
to 20 kt. waves 2 to 3 ft. a chance of showers.  

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 162008
cwfbox
expires:202603170900;;802915

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz250-170900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

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

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 162008
cwfbox
expires:202603170900;;802918

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz254-170900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

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

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 162008
cwfbox
expires:202603170900;;802919

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
408 pm edt mon mar 16 2026

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


anz255-170900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
408 pm edt mon mar 16 2026

...storm warning in effect through tuesday morning...

.tonight...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 10 seconds and s 2 ft at 5 seconds, becoming s 17 ft at
10 seconds and s 2 ft at 5 seconds. patchy dense fog. rain with a
slight chance of tstms. vsby 1 nm or less. 
.tue...w winds 25 to 30 kt with gusts up to 40 kt. seas 10 to
14 ft, subsiding to 9 to 12 ft in the afternoon. wave detail: s
14 ft at 11 seconds and se 8 ft at 11 seconds, becoming sw 10 ft
at 11 seconds and se 8 ft at 11 seconds. patchy fog in the
morning. a chance of rain in the morning with vsby 1 to 3 nm. 
.tue night...w winds 20 to 25 kt with gusts up to 30 kt. seas
9 to 12 ft, subsiding to 7 to 10 ft after midnight. wave detail:
sw 9 ft at 11 seconds and se 7 ft at 11 seconds, becoming sw 9 ft
at 10 seconds and se 7 ft at 12 seconds. 
.wed...nw winds 15 to 20 kt, becoming w 5 to 10 kt in the
afternoon. seas 5 to 8 ft, subsiding to 4 to 6 ft in the
afternoon. wave detail: s 8 ft at 10 seconds and w 3 ft at
6 seconds, becoming s 6 ft at 10 seconds and w 3 ft at 6 seconds.
.wed night and thu...s winds 5 to 10 kt. seas 3 to 5 ft. wave
detail: s 5 ft at 10 seconds and w 2 ft at 6 seconds. 
.thu night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se
3 ft at 9 seconds and se 2 ft at 9 seconds. 
.fri...sw winds around 10 kt. seas 3 to 4 ft. 
.fri night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. a chance of showers. 
.sat and sat night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. a chance of showers.  

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.

$$