• 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- marblehead

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

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 130502
cwfbox
expires:202604131800;;278220

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt mon apr 13 2026

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


anz230-131800-
boston harbor-
102 am edt mon apr 13 2026

...small craft advisory in effect through this evening...

.rest of tonight...s winds around 10 kt with gusts up to 20 kt.
waves around 2 ft. a chance of showers. 
.mon...sw winds 10 to 15 kt with gusts up to 30 kt. waves around
2 ft. 
.mon night...sw winds 10 to 15 kt with gusts up to 25 kt,
becoming w 5 to 10 kt after midnight. waves around 2 ft. 
.tue...sw winds 5 to 10 kt, becoming se 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.tue night...s winds 10 to 15 kt with gusts up to 20 kt, becoming
sw 5 to 10 kt after midnight. waves around 2 ft. a chance of
showers. 
.wed and wed night...w winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.thu and thu night...e winds 5 to 10 kt, becoming s 10 to 15 kt.
waves 1 foot or less. a chance of showers. 
.fri and fri night...sw winds 5 to 10 kt, becoming ne. waves
1 foot or less. 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 130502
cwfbox
expires:202604131800;;278209

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
102 am edt mon apr 13 2026

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


anz250-131800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
102 am edt mon apr 13 2026

...small craft advisory in effect through late tonight...

.rest of tonight...s winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. a chance of showers. 
.mon...s winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. a chance of showers in the morning. 
.mon night...sw winds 20 to 25 kt with gusts up to 30 kt,
becoming w 15 to 20 kt after midnight. seas 4 to 6 ft. areas of
fog. vsby 1 nm or less. 
.tue...w winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 4 ft. 
.tue night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers. 
.wed...sw winds 5 to 10 kt, becoming s in the afternoon. gusts up
to 20 kt. seas 2 to 3 ft. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt after midnight. seas around 2 ft. a chance
of showers. 
.thu through fri night...ne winds 10 to 15 kt. seas 2 to 3 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.

$$
© Copyright 2026 WeatherFlow, Inc · Contact Us ·