fzus51 kbox 200505
cwfbox
expires:202605201800;;328084

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed may 20 2026

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


anz230-201800-
boston harbor-
105 am edt wed may 20 2026

.rest of tonight...sw winds around 10 kt. waves 1 foot or less. 
.wed...w winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. a chance of showers in the afternoon. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw after midnight. waves around 2 ft in the evening, then 1 foot
or less. 
.thu...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.thu night...s winds around 5 kt, becoming n after midnight.
waves 1 foot or less. 
.fri and fri night...sw winds 5 to 10 kt. waves 1 foot or less. 
.sat and sat night...e winds 5 to 10 kt. waves 1 foot or less. a
chance of showers. 
.sun and sun night...e winds 5 to 10 kt. waves around 2 ft. a
chance of showers.  

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 200505
cwfbox
expires:202605201800;;328073

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed may 20 2026

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


anz250-201800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 am edt wed may 20 2026

.rest of tonight...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: se 3 ft at 8 seconds and w 2 ft at
4 seconds. patchy fog. vsby 1 nm or less. 
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 8 seconds and w 2 ft at 4 seconds. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt, becoming
n after midnight. seas 2 to 3 ft. wave detail: nw 2 ft at
4 seconds and se 2 ft at 9 seconds. 
.thu...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and se 2 ft at 9 seconds. 
.thu night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
9 seconds. 
.fri and fri night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 3 seconds and n 1 foot at 3 seconds. 
.sat and sat night...e winds around 5 kt, becoming se. seas
around 2 ft. a chance of showers. 
.sun...e winds around 10 kt. seas around 2 ft. a chance of
showers. 
.sun night...e winds around 10 kt. seas 3 to 5 ft. showers
likely.  

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.

$$