fzus51 kbox 200803
cwfbox
expires:202605202100;;336884

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

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


anz230-202100-
boston harbor-
403 am edt wed may 20 2026

.today...w winds 10 to 15 kt. gusts up to 20 kt this afternoon.
waves around 2 ft. a chance of showers this afternoon. 
.tonight...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 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 sw after midnight.
waves 1 foot or less. 
.sat through sun night...e 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 200803
cwfbox
expires:202605202100;;336875

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

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


anz231-202100-
cape cod bay-
403 am edt wed may 20 2026

.today...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot at
8 seconds. a slight chance of showers and tstms this afternoon. 
.tonight...w winds around 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: w 1 foot at 3 seconds and se 1 foot at
10 seconds. a chance of showers. 
.thu...ne winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 3 seconds and ne 1 foot at 11 seconds. 
.thu night...s winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: n 1 foot at 5 seconds. 
.fri...ne winds 5 to 10 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 4 seconds. 
.fri night...sw winds around 5 kt. seas 1 foot or less. wave
detail: s 1 foot at 3 seconds and ne 1 foot at 4 seconds. 
.sat through sun...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. a chance of showers. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. showers likely.  

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 200803
cwfbox
expires:202605202100;;336873

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

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


anz250-202100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt wed may 20 2026

.today...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 2 ft at 4 seconds and se 2 ft at 8 seconds.
a slight chance of showers this afternoon. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 3 ft. wave detail: w 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: ne 3 ft
at 8 seconds and nw 2 ft at 3 seconds. 
.thu night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: ne 2 ft at 7 seconds and w 1 foot at
3 seconds. 
.fri...n winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: ne 2 ft at 7 seconds and w 1 foot at
3 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 8 seconds and s 1 foot at 3 seconds. 
.sat through sun...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. a chance of showers. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. 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 200639
cwfgyx
expires:202605202045;;333690

coastal waters forecast
national weather service gray me
239 am edt wed may 20 2026

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


anz154-202045-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
239 am edt wed may 20 2026

...small craft advisory in effect from noon edt today through this
afternoon...

.today...sw winds 10 to 15 kt. gusts up to 25 kt, increasing to
30 kt late. seas 2 to 4 ft. wave detail: s 4 ft at 8 seconds. a
slight chance of showers early this afternoon. a slight chance of
showers and tstms late. 
.tonight...nw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: s 3 ft at 8 seconds and w 2 ft at 3 seconds. 
.thu...n winds 10 to 15 kt with gusts up to 20 kt, becoming se 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...nw winds around 5 kt, becoming s 10 to 15 kt 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 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: s 3 ft at
5 seconds. 
.sat...ne winds around 5 kt, becoming se around 5 kt in the
afternoon. seas around 2 ft. 
.sat night...se winds around 5 kt. seas 1 foot or less. 
.sun...e winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.sun night...e winds 5 to 10 kt. seas 2 to 4 ft. a chance of
showers.  

winds and seas higher in and near tstms.

$$