fzus51 kbox 202304
cwfbox
expires:202605211200;;369984

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

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


anz230-211200-
boston harbor-
703 pm edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw after midnight. waves around 2 ft this evening, then 1 foot or
less. a slight chance of showers. 
.thu...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.thu night...se winds 5 to 10 kt, becoming n after midnight.
waves 1 foot or less. 
.fri...ne winds 5 to 10 kt, becoming se in the afternoon. waves
1 foot or less. 
.fri night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. 
.sat...ne winds around 5 kt, becoming e in the afternoon. waves
1 foot or less. 
.sat night...se winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight.
a chance of showers in the evening, then showers likely after
midnight. 
.sun...e winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. showers likely. 
.sun night through mon night...w winds 10 to 15 kt with gusts up
to 20 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 202304
cwfbox
expires:202605211200;;369975

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

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


anz231-211200-
cape cod bay-
703 pm edt wed may 20 2026

.tonight...w winds around 10 kt with gusts up to 20 kt, becoming
n after midnight. seas around 2 ft this evening, then 1 foot or
less. wave detail: w 1 foot at 3 seconds and e 1 foot at
13 seconds, becoming nw 1 foot at 4 seconds and e 1 foot at
17 seconds. a chance of showers. a slight chance of tstms this
evening. 
.thu...n winds around 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: n 1 foot at 4 seconds and e 1 foot at
15 seconds. a chance of showers in the morning. 
.thu night...s winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: n 1 foot at 4 seconds and se
1 foot at 14 seconds. 
.fri...ne winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: ne 1 foot at 4 seconds and e 1 foot
at 14 seconds, becoming ne 1 foot at 3 seconds and e 1 foot at
13 seconds. 
.fri night...s winds around 5 kt, becoming sw around 5 kt after
midnight. seas 1 foot or less. wave detail: ne 1 foot at
3 seconds and e 1 foot at 9 seconds. 
.sat...ne winds around 5 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: ne 1 foot at 3 seconds and se 1 foot
at 12 seconds. 
.sat night...se winds 5 to 10 kt, becoming e 10 to 15 kt with
gusts up to 20 kt after midnight. seas 1 foot or less, then
around 2 ft after midnight. a chance of showers in the evening,
then showers likely after midnight. 
.sun and sun night...e winds 10 to 15 kt with gusts up to 25 kt.
seas 2 to 3 ft. showers likely. 
.mon and mon night...se winds 5 to 10 kt, becoming w. seas around
2 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 202304
cwfbox
expires:202605211200;;369973

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

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


anz250-211200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 pm edt wed may 20 2026

.tonight...w winds 10 to 15 kt, becoming n after midnight. gusts
up to 20 kt. seas 2 to 3 ft. wave detail: w 3 ft at 5 seconds. a
slight chance of showers. 
.thu...n winds around 10 kt with gusts up to 20 kt, becoming e in
the afternoon. seas 2 to 3 ft. wave detail: n 3 ft at 5 seconds. 
.thu night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: ne 2 ft at 6 seconds. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: ne 2 ft at 5 seconds and se 1 foot at
14 seconds. 
.fri night...s winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: e 2 ft at 6 seconds and se 1 foot at
14 seconds. 
.sat...n winds around 5 kt, becoming e around 5 kt in the
afternoon. seas 1 foot or less. wave detail: se 1 foot at
8 seconds and se 1 foot at 11 seconds.
.sat night...se winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas 1 foot or less, then
around 2 ft after midnight. a chance of showers. 
.sun and sun night...e winds 10 to 15 kt with gusts up to 25 kt.
seas 2 to 4 ft. showers likely. 
.mon and mon night...e winds 5 to 10 kt, becoming w. seas 3 to
5 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 kgyx 202102
cwfgyx
expires:202605211000;;365317

coastal waters forecast
national weather service gray me
501 pm edt wed may 20 2026

coastal waters from stonington me to merrimack river ma out to 25 nm


anz154-211000-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
501 pm edt wed may 20 2026

.tonight...nw winds 10 to 15 kt, becoming n towards daybreak. seas
2 to 3 ft. wave detail: s 3 ft at 8 seconds and w 2 ft at 3 seconds.
scattered showers late this evening. isolated showers after
midnight. 
.thu...n winds 10 to 15 kt with gusts up to 20 kt, becoming s 5 to
10 kt in the afternoon. seas 2 to 3 ft. wave detail: nw 2 ft at
3 seconds and se 2 ft at 9 seconds. 
.thu night...sw winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. 
.fri...n winds 5 to 10 kt, becoming s with gusts up to 20 kt in the
afternoon. seas around 2 ft. wave detail: s 2 ft at 10 seconds. 
.fri night...sw winds 5 to 10 kt with gusts up to 20 kt, becoming w
after midnight. seas 2 to 3 ft. wave detail: s 2 ft at 5 seconds. 
.sat...ne winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. 
.sat night...se winds 5 to 10 kt. seas 1 foot or less. a chance of
showers. 
.sun...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to 3 ft.
showers likely. 
.sun night...e winds 10 to 15 kt. seas 2 to 4 ft. showers likely. 
.mon...e winds 5 to 10 kt. seas 3 to 4 ft. showers likely, mainly in
the morning. 
.mon night...ne winds 5 to 10 kt, becoming nw after midnight. seas
3 to 4 ft, building to 4 to 6 ft after midnight. a chance of showers
in the evening.  

$$