• 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 ·
RI- Rhode Island

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 211405
cwfbox
expires:202604220300;;747127

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt tue apr 21 2026

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


anz235-220300-
rhode island sound-
1004 am edt tue apr 21 2026

.this afternoon...e winds 5 to 10 kt, becoming s. seas around
2 ft. wave detail: n 2 ft at 4 seconds and s 1 foot at 7 seconds.
.tonight...s winds 10 to 15 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: sw 1 foot at 4 seconds and e
1 foot at 6 seconds, becoming sw 2 ft at 4 seconds and e 1 foot
at 7 seconds. 
.wed...s winds 15 to 20 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 5 seconds and e 1 foot at 8 seconds. rain likely. 
.wed night...se winds 10 to 15 kt, becoming e 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and w
2 ft at 5 seconds. rain likely in the evening. 
.thu...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 6 seconds and nw 1 foot at
3 seconds. 
.thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 6 seconds and nw 1 foot at 3 seconds. 
.fri through sat...e winds 5 to 10 kt. seas around 2 ft. 
.sat night...e winds 5 to 10 kt. seas 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 211405
cwfbox
expires:202604220300;;747130

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt tue apr 21 2026

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


anz236-220300-
narragansett bay-
1004 am edt tue apr 21 2026

.this afternoon...e winds 5 to 10 kt, becoming s. waves 1 foot or
less. 
.tonight...s winds around 10 kt. waves 1 foot or less. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. rain likely. 
.wed night...se winds 5 to 10 kt, becoming e after midnight.
waves around 2 ft. rain likely in the evening. 
.thu and thu night...nw winds 5 to 10 kt. waves around 2 ft. 
.fri through sat...e winds 5 to 10 kt. waves around 2 ft. 
.sat night...e winds 5 to 10 kt. 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 211405
cwfbox
expires:202604220300;;747128

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt tue apr 21 2026

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


anz237-220300-
block island sound-
1004 am edt tue apr 21 2026

.this afternoon...e winds 5 to 10 kt, becoming s. seas around
2 ft. wave detail: ne 2 ft at 4 seconds and nw 1 foot at
2 seconds. 
.tonight...s winds 10 to 15 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: sw 1 foot at 4 seconds and e
1 foot at 6 seconds, becoming sw 2 ft at 4 seconds and e 1 foot
at 7 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 5 seconds and e 1 foot at
8 seconds. rain likely. 
.wed night...se winds 10 to 15 kt, becoming e around 5 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and e
1 foot at 7 seconds. a chance of rain in the evening. 
.thu...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 6 seconds and nw 1 foot at 3 seconds. 
.thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
2 ft at 6 seconds and w 1 foot at 3 seconds. 
.fri and fri night...nw winds 5 to 10 kt, becoming se. seas
around 2 ft. 
.sat and sat night...e winds 5 to 10 kt. seas 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 211405
cwfbox
expires:202604220300;;747122

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt tue apr 21 2026

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


anz255-220300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt tue apr 21 2026

.this afternoon...ne winds 10 to 15 kt, becoming e 5 to 10 kt.
seas 2 to 3 ft. wave detail: n 3 ft at 5 seconds and s 1 foot at
7 seconds. 
.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 7 seconds and nw 1 foot at 4 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 6 seconds and w 2 ft at 5 seconds.
rain likely in the afternoon. 
.wed night...se winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 3 to 4 ft. wave
detail: se 4 ft at 5 seconds and w 2 ft at 6 seconds. a chance of
rain in the evening. 
.thu...n winds 5 to 10 kt, becoming w in the afternoon. seas 3 to
4 ft. wave detail: sw 3 ft at 6 seconds and e 2 ft at 9 seconds. 
.thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 6 seconds and e 2 ft at 8 seconds. 
.fri through sat night...e 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 kokx 210630
cwfokx
expires:202604212000;;730117

coastal waters forecast
national weather service new york ny
230 am edt tue apr 21 2026

montauk point ny to sandy hook nj out 60 nm offshore, including
long island sound, the long island bays, and new york harbor


anz340-212000-
peconic and gardiners bays-
230 am edt tue apr 21 2026

.overnight...n winds around 10 kt. waves 1 ft or less. 
.today...ne winds 5 to 10 kt, becoming s in the afternoon. waves
1 ft or less. 
.tonight...s winds 5 to 10 kt. waves 1 ft or less. 
.wed...s winds 10 to 15 kt with occasional gusts up to 25 kt. 
waves 1 ft or less. showers likely.
.wed night...e winds 5 to 10 kt, becoming ne after midnight.
waves 1 ft or less. chance of showers in the evening. 
.thu...nw winds around 5 kt, becoming w in the afternoon. waves
1 ft or less. 
.thu night...nw winds 5 to 10 kt. waves 1 ft or less. 
.fri...w winds around 5 kt. waves 1 ft or less. 
.fri night...se winds around 5 kt. waves 1 ft or less. 
.sat...e winds 5 to 10 kt. waves 1 ft or less. chance of showers.
.sat night...e winds 5 to 10 kt. waves 1 ft or less. chance of
showers.  

$$
fzus51 kokx 210630
cwfokx
expires:202604212000;;730110

coastal waters forecast
national weather service new york ny
230 am edt tue apr 21 2026

montauk point ny to sandy hook nj out 60 nm offshore, including
long island sound, the long island bays, and new york harbor


anz350-212000-
moriches inlet ny to montauk point ny out 20 nm-
230 am edt tue apr 21 2026

.overnight...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: n 2 ft at 3 seconds and nw 2 ft at
4 seconds. 
.today...ne winds 10 to 15 kt, becoming se 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds and
w 1 ft at 4 seconds. 
.tonight...s winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and e 2 ft at 8 seconds. chance of showers
after midnight. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft, occasionally to 5 ft. wave detail: s 3 ft at 4 seconds and
e 1 ft at 8 seconds. showers likely. 
.wed night...e winds 5 to 10 kt with gusts up to 20 kt, becoming
ne after midnight. seas 3 to 4 ft, occasionally to 5 ft. wave
detail: s 3 ft at 6 seconds and e 2 ft at 9 seconds. chance of
showers in the evening. 
.thu...nw winds around 5 kt, becoming w in the afternoon. seas
3 to 4 ft, occasionally to 5 ft. wave detail: s 3 ft at 6 seconds
and e 2 ft at 9 seconds. 
.thu night...nw winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. 
.fri...nw winds 5 to 10 kt. seas 2 to 3 ft. 
.fri night...se winds 5 to 10 kt. seas around 2 ft. 
.sat...e winds 10 to 15 kt. seas around 2 ft. chance of showers. 
.sat night...e winds 10 to 15 kt. seas 2 to 3 ft. chance of
showers.  

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