fzus51 kbox 212005
cwfbox
expires:202505220900;;917072

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt wed may 21 2025

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


anz230-220900-
boston harbor-
404 pm edt wed may 21 2025

...gale warning in effect from thursday afternoon through late
thursday night...

.tonight...e winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. waves 2 to 3 ft. a slight chance of
showers after midnight. 
.thu...e winds 20 to 25 kt, increasing to 25 to 30 kt with gusts
up to 35 kt in the afternoon. waves 2 to 3 ft. patchy fog.
showers likely in the morning. showers in the afternoon. vsby
1 to 3 nm. 
.thu night...ne winds 25 to 30 kt with gusts up to 40 kt,
becoming n 20 to 25 kt with gusts up to 30 kt after midnight.
waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
patchy fog. showers. vsby 1 to 3 nm.
.fri...nw winds 15 to 20 kt, becoming w 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves 3 to 5 ft. a chance of
showers. patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...w winds 5 to 10 kt. waves 2 to 4 ft. a chance of
showers. 
.sat...w winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.sat night...nw winds around 10 kt. waves 1 foot or less. 
.sun through mon night...sw winds 5 to 10 kt. waves 1 foot or
less.  

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 212005
cwfbox
expires:202505220900;;917063

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt wed may 21 2025

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


anz231-220900-
cape cod bay-
404 pm edt wed may 21 2025

...gale warning in effect from thursday morning through thursday
evening...

.tonight...e winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 4 seconds and e 2 ft at 8 seconds. a slight chance of showers
after midnight. 
.thu...e winds 20 to 25 kt with gusts up to 30 kt, increasing to
25 to 30 kt with gusts up to 40 kt in the afternoon. seas 2 to
4 ft, building to 4 to 6 ft in the afternoon. wave detail: se
4 ft at 4 seconds and e 3 ft at 9 seconds, becoming e 6 ft at
6 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.thu night...e winds 25 to 30 kt with gusts up to 45 kt, becoming
n 15 to 20 kt with gusts up to 30 kt after midnight. seas 4 to
6 ft. wave detail: e 6 ft at 8 seconds and ne 5 ft at 5 seconds.
patchy fog. showers likely. a chance of tstms in the evening.
vsby 1 to 3 nm. 
.fri...w winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: e 5 ft
at 9 seconds and ne 3 ft at 7 seconds. patchy fog in the morning.
a chance of showers in the morning with vsby 1 to 3 nm. 
.fri night and sat...w winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: e 4 ft at 9 seconds and n 3 ft at 7 seconds. a chance of
showers through the day. 
.sat night...w winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 9 seconds and n 1 foot at 4 seconds. 
.sun through mon night...sw winds 5 to 10 kt. seas around 2 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 212005
cwfbox
expires:202505220900;;917061

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 pm edt wed may 21 2025

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


anz250-220900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt wed may 21 2025

...gale warning in effect from thursday afternoon through late
thursday night...

.tonight...e winds 10 to 15 kt with gusts up to 20 kt, increasing
to 15 to 20 kt with gusts up to 30 kt after midnight. seas 4 to
5 ft. wave detail: e 5 ft at 7 seconds and se 2 ft at 9 seconds. 
.thu...e winds 20 to 25 kt with gusts up to 30 kt, increasing to
25 to 30 kt with gusts up to 40 kt in the afternoon. seas 5 to
7 ft, building to 7 to 10 ft in the afternoon. wave detail: e
7 ft at 9 seconds and e 6 ft at 6 seconds, becoming e 10 ft at
7 seconds. a chance of showers in the morning, then showers in
the afternoon. patchy fog in the afternoon. vsby 1 to 3 nm. 
.thu night...e winds 25 to 30 kt with gusts up to 45 kt, becoming
ne 20 to 25 kt with gusts up to 35 kt after midnight. seas 9 to
12 ft. wave detail: e 12 ft at 9 seconds and e 3 ft at 5 seconds.
patchy fog. showers. vsby 1 to 3 nm. 
.fri...w winds 15 to 20 kt. gusts up to 30 kt in the morning.
seas 8 to 11 ft, subsiding to 6 to 9 ft in the afternoon. wave
detail: e 11 ft at 10 seconds and sw 1 foot at 5 seconds,
becoming e 9 ft at 10 seconds and nw 2 ft at 6 seconds. patchy
fog in the morning. a chance of showers in the morning with vsby
1 to 3 nm. 
.fri night...w winds around 10 kt. seas 4 to 6 ft. wave detail: e
6 ft at 9 seconds and n 2 ft at 6 seconds. a chance of showers
after midnight. 
.sat...w winds around 10 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds and n 1 foot at 5 seconds. a chance of showers in
the morning. 
.sat night...nw winds around 10 kt. seas 3 to 4 ft. 
.sun through mon night...sw winds 5 to 10 kt. seas 2 to 3 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.

$$

fzus51 kgyx 211947
cwfgyx
expires:202505221000;;916139

coastal waters forecast
national weather service gray me
347 pm edt wed may 21 2025

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


anz154-221000-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
347 pm edt wed may 21 2025

...gale warning in effect from thursday afternoon through late
thursday night...

.tonight...e winds 10 to 15 kt, increasing to 15 to 20 kt towards
daybreak. gusts up to 25 kt, increasing to 30 kt towards daybreak.
seas 3 to 4 ft. wave detail: e 4 ft at 7 seconds. 
.thu...e winds 25 to 30 kt. gusts up to 40 kt in the afternoon. seas
4 to 6 ft, building to 5 to 8 ft in the afternoon. wave detail: e
6 ft at 6 seconds, becoming e 8 ft at 7 seconds. rain in the
afternoon. 
.thu night...ne winds 25 to 30 kt with gusts up to 45 kt. seas 9 to
12 ft. wave detail: e 12 ft at 9 seconds. rain.
.fri...n winds 20 to 25 kt, becoming nw 15 to 20 kt in the
afternoon. gusts up to 35 kt. seas 9 to 12 ft, subsiding to 8 to
10 ft in the afternoon. wave detail: e 11 ft at 10 seconds, becoming
e 10 ft at 10 seconds. rain.
.fri night...w winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt after midnight. seas 7 to 9 ft, subsiding to 5 to 8 ft
after midnight. wave detail: e 9 ft at 10 seconds, becoming e 7 ft
at 10 seconds. a chance of rain in the evening, then a chance of
showers after midnight. 
.sat...w winds 5 to 10 kt. seas 4 to 6 ft. wave detail: e 5 ft at
9 seconds. a chance of showers. 
.sat night...nw winds 5 to 10 kt. seas 3 to 4 ft. 
.sun...nw winds 5 to 10 kt. seas 2 to 3 ft. 
.sun night...nw winds around 5 kt. seas 2 to 3 ft. 
.mon...nw winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. 
.mon night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft.  

$$