fzus51 kbox 131704
cwfbox
expires:202605140600;;497546

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz230-140600-
boston harbor-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
waves around 2 ft. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. waves around 2 ft. 
.thu...e winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. patchy fog. a chance of showers in the morning, then
showers with a chance of tstms in the afternoon with vsby 1 to
3 nm. 
.thu night...e winds 10 to 15 kt. waves around 2 ft. patchy fog.
showers with a chance of tstms in the evening. a chance of
showers after midnight. vsby 1 to 3 nm. 
.fri...ne winds 10 to 15 kt. waves around 2 ft. showers. patchy
fog in the morning. 
.fri night...nw winds 5 to 10 kt, becoming w after midnight.
waves 1 foot or less. 
.sat through sun night...nw winds 10 to 15 kt with gusts up to
20 kt. waves around 2 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 131704
cwfbox
expires:202605140600;;497535

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 13 2026

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


anz250-140600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt wed may 13 2026

...small craft advisory in effect until 11 pm edt this evening...

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

$$