• 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 151506
cwfbox
expires:202601160400;;394011

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz231-160400-
cape cod bay-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday afternoon...

.this afternoon...sw winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 30 kt. seas 2 to 4 ft. wave detail: s 3 ft at
8 seconds and sw 2 ft at 3 seconds. 
.tonight...w winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: w 3 ft at 4 seconds and s 3 ft at 8 seconds.
light freezing spray after midnight. 
.fri...w winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: w 4 ft at 5 seconds and sw 3 ft at 8 seconds.
light freezing spray in the morning. 
.fri night...sw winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w
3 ft at 4 seconds and sw 2 ft at 8 seconds. 
.sat...sw winds 5 to 10 kt with gusts up to 20 kt. seas around
2 ft. wave detail: sw 2 ft at 8 seconds and se 2 ft at
11 seconds. a chance of rain. 
.sat night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 2 ft at 8 seconds and se 2 ft at 8 seconds. 
.sun...w winds 5 to 10 kt. seas around 2 ft. snow likely with a
chance of rain. 
.sun night...nw winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 3 ft. snow likely. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. 
.mon night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. light freezing spray.  

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 151506
cwfbox
expires:202601160400;;394015

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz232-160400-
nantucket sound-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday afternoon...

.this afternoon...sw winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 30 kt. seas 3 to 4 ft, building to 4 to 6 ft.
wave detail: sw 2 ft at 3 seconds and s 2 ft at 7 seconds,
becoming sw 3 ft at 4 seconds and s 3 ft at 8 seconds. 
.tonight...w winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 35 kt. seas 4 to 6 ft. wave detail: w 4 ft
at 4 seconds and sw 3 ft at 8 seconds. light freezing spray after
midnight. 
.fri...w winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: w 5 ft at 5 seconds and sw 3 ft at 9 seconds.
light freezing spray in the morning. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
sw 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
4 ft. wave detail: w 3 ft at 4 seconds and sw 3 ft at 9 seconds. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 20 kt. seas 2 to 4 ft. wave detail: sw
2 ft at 3 seconds and sw 2 ft at 8 seconds. a chance of rain. 
.sat night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: sw
2 ft at 3 seconds and sw 2 ft at 8 seconds. 
.sun...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of rain and snow. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. snow likely. 
.mon...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. 
.mon night...w winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. light freezing spray.  

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 151506
cwfbox
expires:202601160400;;394016

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz233-160400-
vineyard sound-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday afternoon...

.this afternoon...sw winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 30 kt. seas 3 to 5 ft, building to 5 to 7 ft.
wave detail: s 4 ft at 7 seconds and sw 2 ft at 3 seconds,
becoming s 5 ft at 8 seconds and sw 3 ft at 5 seconds. 
.tonight...w winds 15 to 20 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: sw 6 ft at 8 seconds and w 3 ft at 4 seconds.
light freezing spray after midnight. 
.fri...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: sw 7 ft at 8 seconds and w 3 ft at 5 seconds.
light freezing spray in the morning. 
.fri night...sw winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail:
sw 5 ft at 8 seconds and w 2 ft at 4 seconds. 
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: sw 4 ft at 8 seconds and se 2 ft at
11 seconds. a chance of rain. 
.sat night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: sw 4 ft at 8 seconds and se
1 foot at 10 seconds. 
.sun...w winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. snow likely with a chance of rain. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. snow likely. 
.mon...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.mon night...w winds 25 to 30 kt. seas 4 to 6 ft. light freezing
spray.  

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 151506
cwfbox
expires:202601160400;;394017

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz234-160400-
buzzards bay-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday afternoon...

.this afternoon...sw winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 30 kt. seas 3 to 5 ft. wave detail: sw 4 ft at
6 seconds and se 1 foot at 9 seconds. 
.tonight...w winds 15 to 20 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 8 seconds and sw 3 ft at 5 seconds.
light freezing spray after midnight. 
.fri...w winds 15 to 20 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 8 seconds and w 4 ft at 5 seconds.
light freezing spray in the morning. 
.fri night...sw winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft. wave detail: sw 4 ft at
8 seconds and w 2 ft at 4 seconds. 
.sat...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 20 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 7 seconds and se 2 ft at 11 seconds. a chance of rain. 
.sat night...w winds 5 to 10 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 8 seconds and sw 1 foot at 3 seconds. 
.sun and sun night...w winds 10 to 15 kt, becoming nw 15 to
20 kt. seas 2 to 3 ft. snow likely. 
.mon...w winds 20 to 25 kt with gusts up to 30 kt. seas 2 to
4 ft. 
.mon night...w winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. light freezing spray.  

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 151506
cwfbox
expires:202601160400;;394018

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz235-160400-
rhode island sound-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday afternoon...

.this afternoon...sw winds around 15 kt, increasing to 20 to
25 kt. gusts up to 30 kt. seas 4 to 6 ft, building to 5 to 8 ft.
wave detail: s 5 ft at 8 seconds and sw 1 foot at 3 seconds,
becoming s 7 ft at 8 seconds and sw 2 ft at 5 seconds. 
.tonight...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
8 ft. wave detail: s 7 ft at 8 seconds and w 4 ft at 5 seconds.
light freezing spray after midnight. 
.fri...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
8 ft. wave detail: sw 8 ft at 9 seconds and w 4 ft at 5 seconds.
light freezing spray in the morning. 
.fri night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: sw 6 ft at 9 seconds and se 3 ft at
11 seconds. 
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: sw 5 ft at 8 seconds and se 3 ft at
11 seconds. a chance of rain. 
.sat night...w winds 10 to 15 kt with gusts up to 20 kt. seas
4 to 6 ft. wave detail: s 6 ft at 9 seconds and se 2 ft at
10 seconds. 
.sun...w winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
5 ft. snow likely with a chance of rain. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. snow likely. 
.mon...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.mon night...w winds 25 to 30 kt. seas 4 to 6 ft. light freezing
spray.  

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 151506
cwfbox
expires:202601160400;;394021

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz236-160400-
narragansett bay-
1006 am est thu jan 15 2026

...gale warning in effect from late tonight through friday
afternoon...

.this afternoon...sw winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 30 kt. waves 3 to 5 ft. 
.tonight...w winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 30 kt. waves 3 to 5 ft. light freezing
spray after midnight. 
.fri...w winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 35 kt. waves 3 to 5 ft. light freezing
spray in the morning. 
.fri night...sw winds 10 to 15 kt with gusts up to 30 kt,
diminishing to 5 to 10 kt with gusts up to 20 kt after midnight.
waves 2 to 4 ft. 
.sat...sw winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
waves 2 to 4 ft. a chance of rain. 
.sat night...w winds 5 to 10 kt. waves 2 to 4 ft. 
.sun and sun night...w winds 5 to 10 kt, becoming nw 10 to 15 kt.
gusts up to 20 kt. waves 2 to 3 ft. snow likely. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.mon night...w winds 15 to 20 kt with gusts up to 25 kt. waves
4 to 6 ft. light freezing spray.  

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 151506
cwfbox
expires:202601160400;;394009

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz250-160400-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday evening...

.this afternoon...s winds around 15 kt, becoming sw 20 to 25 kt.
gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 3 ft at
5 seconds and se 3 ft at 9 seconds. 
.tonight...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: sw 5 ft at 6 seconds and se 3 ft at 9 seconds.
light freezing spray after midnight. 
.fri...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
7 ft. wave detail: w 6 ft at 5 seconds and se 3 ft at 10 seconds.
light freezing spray in the morning. 
.fri night...w winds 15 to 20 kt, becoming sw 10 to 15 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: sw 5 ft
at 6 seconds and se 3 ft at 12 seconds. 
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: sw 3 ft at 4 seconds and se 3 ft at
12 seconds. a chance of rain. a chance of snow in the morning. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: s 3 ft at 5 seconds and se 3 ft at
10 seconds. a chance of rain in the evening. 
.sun...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. snow likely with a chance of rain. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. snow likely. 
.mon...w winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.mon night...w winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. light freezing spray.  

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 151506
cwfbox
expires:202601160400;;394012

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz254-160400-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 6 ft at 9 seconds and sw 3 ft at
4 seconds. 
.tonight...w winds 20 to 25 kt with gusts up to 35 kt. seas 5 to
8 ft. wave detail: s 6 ft at 9 seconds and w 5 ft at 5 seconds. 
.fri...w winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
9 ft. wave detail: w 6 ft at 6 seconds and sw 5 ft at 9 seconds.
light freezing spray in the morning. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
sw 10 to 15 kt with gusts up to 20 kt after midnight. seas 4 to
6 ft. wave detail: w 4 ft at 5 seconds and se 4 ft at 11 seconds.
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: se 4 ft at 11 seconds and sw 3 ft at
8 seconds. a chance of rain. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. wave detail: s 5 ft at 9 seconds and se 3 ft at
10 seconds. 
.sun...sw winds around 10 kt with gusts up to 20 kt. seas 3 to
5 ft. rain likely. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. snow and rain likely. 
.mon...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.mon night...w winds 20 to 25 kt with gusts up to 30 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.

$$
fzus51 kbox 151506
cwfbox
expires:202601160400;;394013

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 am est thu jan 15 2026

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


anz255-160400-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1006 am est thu jan 15 2026

...gale warning in effect from 7 pm est this evening through
friday evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 35 kt.
seas 5 to 8 ft, building to 7 to 10 ft. wave detail: s 6 ft at
8 seconds and sw 1 foot at 3 seconds, becoming s 8 ft at
8 seconds and sw 2 ft at 4 seconds. 
.tonight...w winds 20 to 25 kt with gusts up to 40 kt. seas 7 to
10 ft. wave detail: sw 10 ft at 8 seconds and w 2 ft at
4 seconds. 
.fri...w winds 25 to 30 kt with gusts up to 40 kt. seas 8 to
11 ft. wave detail: sw 11 ft at 9 seconds and w 3 ft at
5 seconds. light freezing spray in the morning. 
.fri night...sw winds 15 to 20 kt. gusts up to 35 kt, decreasing
to 25 kt after midnight. seas 5 to 8 ft. wave detail: sw 8 ft at
9 seconds and se 3 ft at 11 seconds. 
.sat...sw winds 10 to 15 kt with gusts up to 20 kt. seas 5 to
7 ft. wave detail: sw 6 ft at 8 seconds and se 3 ft at
11 seconds. a chance of rain. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
5 to 7 ft. wave detail: sw 7 ft at 8 seconds and se 2 ft at
11 seconds. 
.sun...w winds 10 to 15 kt with gusts up to 20 kt. seas 5 to
7 ft. rain likely. 
.sun night...nw winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. snow likely. 
.mon...w winds 25 to 30 kt. seas 5 to 7 ft. 
.mon night...w winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 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 2026 WeatherFlow, Inc · Contact Us ·