• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
MA- Cape Cod

Human Forecasts
 > Daily Briefing
 > Forecast Blog

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>None Active

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus51 kbox 222105
cwfbox
expires:202511231000;;326921

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz231-231000-
cape cod bay-
405 pm est sat nov 22 2025

.tonight...nw winds 10 to 15 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: nw 2 ft at 4 seconds and n 1 foot at
3 seconds. 
.sun...sw winds 5 to 10 kt. seas around 2 ft. wave detail: nw
2 ft at 4 seconds and n 2 ft at 5 seconds. 
.sun night...w winds 5 to 10 kt, becoming nw 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
nw 2 ft at 3 seconds and n 1 foot at 5 seconds. 
.mon...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: nw 2 ft at 4 seconds and sw 1 foot at
6 seconds. 
.mon night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt after midnight. seas around 2 ft. wave
detail: n 2 ft at 4 seconds and sw 1 foot at 6 seconds. 
.tue...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: n
1 foot at 4 seconds and w 1 foot at 4 seconds. 
.tue night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. rain.
.wed...sw winds 10 to 15 kt. seas around 2 ft. rain likely. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of rain. 
.thu and thu night...w 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.

$$
fzus51 kbox 222105
cwfbox
expires:202511231000;;326925

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz232-231000-
nantucket sound-
405 pm est sat nov 22 2025

.tonight...n winds 10 to 15 kt. gusts up to 20 kt this evening.
seas around 2 ft. wave detail: nw 2 ft at 3 seconds and n 1 foot
at 4 seconds. 
.sun...w winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 3 seconds and ne 1 foot at
4 seconds. 
.sun night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: w 2 ft at 3 seconds and ne
1 foot at 6 seconds. a chance of rain in the evening. 
.mon...nw winds 15 to 20 kt. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and sw 2 ft at 6 seconds. 
.mon night...nw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and sw
1 foot at 7 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and ne 1 foot
at 5 seconds. 
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. rain.
.wed...sw winds around 15 kt with gusts up to 20 kt. seas 2 to
3 ft. rain likely. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of rain. 
.thu and thu night...w winds 20 to 25 kt, increasing to 25 to
30 kt. seas 3 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.

$$
fzus51 kbox 222105
cwfbox
expires:202511231000;;326926

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz233-231000-
vineyard sound-
405 pm est sat nov 22 2025

.tonight...n winds 10 to 15 kt. seas around 2 ft this evening,
then 1 foot or less. wave detail: n 1 foot at 3 seconds and e
1 foot at 6 seconds, becoming nw 1 foot at 3 seconds and n 1 foot
at 3 seconds. 
.sun...nw winds around 5 kt, becoming sw in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
nw 1 foot at 3 seconds and n 1 foot at 3 seconds, becoming sw
1 foot at 3 seconds and n 1 foot at 4 seconds. 
.sun night...w winds 10 to 15 kt, becoming nw 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and s
2 ft at 7 seconds. 
.mon...nw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: w 3 ft at 5 seconds and n
1 foot at 4 seconds. 
.mon night...w winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 4 seconds and w 1 foot at 5 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and n 1 foot
at 5 seconds. a chance of rain in the afternoon. 
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. rain.
.wed...sw winds around 15 kt with gusts up to 20 kt. seas 2 to
3 ft. rain likely. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of rain. 
.thu...w winds 20 to 25 kt. seas 2 to 4 ft. 
.thu night...w winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 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 kbox 222105
cwfbox
expires:202511231000;;326927

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz234-231000-
buzzards bay-
405 pm est sat nov 22 2025

.tonight...n winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft this evening, then 1 foot or less.
wave detail: n 1 foot at 3 seconds and e 1 foot at 7 seconds,
becoming nw 1 foot at 2 seconds and n 1 foot at 3 seconds. 
.sun...nw winds around 5 kt, becoming sw in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
nw 1 foot at 3 seconds and ne 1 foot at 3 seconds, becoming sw
1 foot at 3 seconds and n 1 foot at 4 seconds. 
.sun night...w winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: w 2 ft at 4 seconds and
se 2 ft at 7 seconds. 
.mon...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: nw 2 ft at 3 seconds and sw 2 ft at 6 seconds.
.mon night...w winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: n 1 foot at 4 seconds and w
1 foot at 5 seconds, becoming ne 1 foot at 4 seconds and sw
1 foot at 5 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and ne 1 foot
at 4 seconds. a chance of rain in the afternoon. 
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. rain.
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. rain likely. 
.wed night...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
rain. 
.thu and thu night...w winds 20 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.

$$
fzus51 kbox 222105
cwfbox
expires:202511231000;;326928

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz235-231000-
rhode island sound-
405 pm est sat nov 22 2025

.tonight...n winds 10 to 15 kt. seas around 2 ft. wave detail: nw
2 ft at 3 seconds and n 1 foot at 3 seconds. 
.sun...nw winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and
se 2 ft at 7 seconds. 
.sun night...w winds 10 to 15 kt, becoming nw 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds and w
2 ft at 4 seconds. 
.mon...nw winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: w 3 ft at 5 seconds and n
1 foot at 4 seconds. 
.mon night...nw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: w 2 ft at 5 seconds and n
1 foot at 4 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and n 1 foot
at 3 seconds. a chance of rain in the afternoon. 
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. rain.
.wed...sw winds around 15 kt with gusts up to 20 kt. seas 3 to
4 ft. rain likely. 
.wed night...sw winds 20 to 25 kt. seas 3 to 4 ft. a chance of
rain. 
.thu...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. 
.thu night...w winds 25 to 30 kt. seas 4 to 6 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 kbox 222105
cwfbox
expires:202511231000;;326931

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz236-231000-
narragansett bay-
405 pm est sat nov 22 2025

.tonight...n winds 5 to 10 kt. waves 1 foot or less. 
.sun...w winds 5 to 10 kt. waves 1 foot or less, then around 2 ft
in the afternoon. 
.sun night...w winds 5 to 10 kt, becoming nw 10 to 15 kt with
gusts up to 20 kt after midnight. waves around 2 ft. 
.mon...nw winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. 
.mon night...w winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.tue...sw winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves around 2 ft. a chance of rain
in the afternoon. 
.tue night...s winds 10 to 15 kt, becoming sw 15 to 20 kt after
midnight. waves 2 to 3 ft. rain.
.wed and wed night...sw winds 10 to 15 kt. gusts up to 20 kt.
waves 2 to 3 ft. a chance of rain. 
.thu...w winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.thu night...w winds 15 to 20 kt. waves 3 to 5 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 kbox 222105
cwfbox
expires:202511231000;;326919

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz250-231000-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm est sat nov 22 2025

.tonight...nw winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: n 3 ft at 4 seconds and e
2 ft at 7 seconds. 
.sun...sw winds 5 to 10 kt. seas around 2 ft. wave detail: n 2 ft
at 5 seconds and nw 2 ft at 5 seconds. 
.sun night...w winds around 10 kt, becoming nw with gusts up to
20 kt after midnight. seas 2 to 3 ft. wave detail: w 2 ft at
3 seconds and ne 1 foot at 4 seconds. 
.mon...nw winds around 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: n 3 ft at 4 seconds and s 1 foot at 6 seconds.
.mon night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: nw 3 ft at 4 seconds and e
1 foot at 9 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: w 2 ft at 3 seconds and n 1 foot at
4 seconds. a chance of rain in the afternoon. 
.tue night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. rain.
.wed and wed night...s winds 10 to 15 kt, becoming sw 15 to
20 kt. gusts up to 25 kt. seas 2 to 3 ft. a chance of rain. 
.thu...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. 
.thu night...w winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 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 kbox 222105
cwfbox
expires:202511231000;;326922

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz254-231000-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 pm est sat nov 22 2025

.tonight...n winds 10 to 15 kt. gusts up to 20 kt this evening.
seas 2 to 3 ft. wave detail: n 3 ft at 4 seconds and n 2 ft at
4 seconds. 
.sun...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: nw 2 ft at 4 seconds and n 2 ft at
5 seconds. 
.sun night...sw winds around 10 kt, becoming nw with gusts up to
20 kt after midnight. seas 2 to 4 ft. wave detail: nw 2 ft at
4 seconds and se 2 ft at 7 seconds. a chance of rain. 
.mon...nw winds 15 to 20 kt. seas 3 to 4 ft. wave detail: n 3 ft
at 4 seconds and s 2 ft at 6 seconds. 
.mon night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: w 3 ft at 6 seconds and n 1 foot at 5 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and n 1 foot at
5 seconds. 
.tue night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. a chance of rain in
the evening, then rain after midnight. 
.wed...sw winds 15 to 20 kt. seas 2 to 4 ft. rain likely. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. a chance of rain. 
.thu...w winds 20 to 25 kt. seas 3 to 4 ft. 
.thu night...w winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 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 kbox 222105
cwfbox
expires:202511231000;;326923

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm est sat nov 22 2025

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


anz255-231000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 pm est sat nov 22 2025

.tonight...n winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: nw 3 ft at 4 seconds and n
2 ft at 4 seconds. 
.sun...w winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: w 2 ft at 3 seconds and
se 2 ft at 7 seconds. 
.sun night...w winds 10 to 15 kt, becoming nw 15 to 20 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw 4 ft
at 5 seconds and e 2 ft at 7 seconds. a chance of rain in the
evening. 
.mon...nw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 3 to 5 ft. wave detail: nw 5 ft at 5 seconds and
e 1 foot at 7 seconds. 
.mon night...nw winds 10 to 15 kt, becoming w 5 to 10 kt after
midnight. seas 2 to 4 ft. wave detail: w 3 ft at 6 seconds and n
1 foot at 5 seconds. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and ne 1 foot
at 5 seconds. 
.tue night...s winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. seas 2 to 3 ft, building to 3 to 5 ft after midnight.
rain.
.wed...sw winds 15 to 20 kt. seas 3 to 5 ft. rain likely. 
.wed night...sw winds 20 to 25 kt. seas 4 to 5 ft. a chance of
rain. 
.thu...w winds 25 to 30 kt. seas 4 to 6 ft. 
.thu night...w winds 25 to 30 kt with gusts up to 35 kt. seas
5 to 7 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.

$$
© Copyright 2025 WeatherFlow, Inc · Contact Us ·