• 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 ·
ON- Ontario

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

fzus61 kbuf 060902
glflo 
expires:202511061600;;935170

open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu nov 6 2025

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.2 inch high will build from the ohio valley to the 
mid-atlantic states today, then will slide east and out to sea 
tonight. a 29.4 inch low over the upper great lakes will then deepen 
to 29.2 inches as it makes its way to western quebec friday and 
friday night, with its trailing cold front crossing the lake friday 
night. another 29.8 inch surface low will deepen to 29.6 inches as 
it tracks from the ohio valley to new england sunday and monday.


loz062-061600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est thu nov 6 2025

.today...northwest winds 15 to 25 knots becoming west. a chance
of showers early. waves 4 to 7 feet subsiding to 2 to 4 feet.
waves occasionally around 9 feet. 
.tonight...west winds 10 to 15 knots becoming south. waves 1 to
3 feet. 
.friday...south winds 15 to 25 knots becoming southwest to
30 knots. showers. waves 2 to 4 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.friday night...southwest winds 15 to 20 knots becoming west.
showers. waves 3 to 6 feet. 
.saturday...northwest winds 15 to 20 knots becoming east. a
chance of showers during the day, then showers likely saturday
night. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.sunday...east winds 15 to 25 knots becoming northwest 15 to
20 knots. rain showers during the day, then rain and snow showers
likely sunday night. waves 5 to 8 feet. waves occasionally around
10 feet. 
.monday...northwest winds 15 to 25 knots. a chance of snow
showers during the day, then snow showers likely monday night.
waves 3 to 6 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 

$$
fzus61 kbuf 060902
glflo 
expires:202511061600;;935171

open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu nov 6 2025

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.2 inch high will build from the ohio valley to the 
mid-atlantic states today, then will slide east and out to sea 
tonight. a 29.4 inch low over the upper great lakes will then deepen 
to 29.2 inches as it makes its way to western quebec friday and 
friday night, with its trailing cold front crossing the lake friday 
night. another 29.8 inch surface low will deepen to 29.6 inches as 
it tracks from the ohio valley to new england sunday and monday.


loz063>065-061600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est thu nov 6 2025

.today...northwest winds 15 to 25 knots becoming west. waves 5 to
8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.tonight...west winds 15 to 20 knots becoming south. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.friday...south winds 15 to 25 knots increasing to 30 knots. a
chance of showers in the morning, then showers in the afternoon.
waves 3 to 5 feet building to 5 to 9 feet. waves occasionally
around 11 feet. 
.friday night...southwest winds to 30 knots becoming west 15 to
25 knots. showers. waves 5 to 8 feet subsiding to 4 to 7 feet.
waves occasionally around 10 feet. 
.saturday...west winds 15 to 20 knots becoming northeast. rain
showers likely. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.sunday...east winds 15 to 25 knots becoming west. rain showers
during the day, then rain showers with snow showers likely sunday
night. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.monday...west winds 15 to 25 knots increasing to 30 knots. snow
and rain showers likely during the day, then snow showers monday
night. waves 3 to 6 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 

$$
fzus61 kcle 061206
glfle 
expires:202511061515;;943378

open lake forecast for lake erie
national weather service cleveland oh
706 am est thu nov 6 2025

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.20 inches briefly builds in for today before
exiting to the east tonight. low pressure 29.30 inches tracks 
across the upper great lakes on friday, moving a cold front across
the lake late friday. another low pressure system of 29.70 inches
will move east across lake erie on sunday with a lingering 
surface trough averaging 30.00 inches persisting through monday.


lez061-167>169-061515-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
706 am est thu nov 6 2025

.today...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
6 feet. 
.friday...south winds to 30 knots becoming southwest. rain. waves
5 to 9 feet building to 7 to 10 feet. waves occasionally around
13 feet. 
.friday night...southwest winds 15 to 25 knots becoming west.
rain in the evening, then a chance of rain overnight. waves 5 to
8 feet. waves occasionally around 10 feet. 
.saturday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain during the day, then rain saturday
night. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...east winds to 30 knots becoming northwest. rain during
the day, then rain and snow sunday night. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.monday...northwest winds to 30 knots. snow. waves 6 to 10 feet.
waves occasionally around 13 feet. 

$$
fzus61 kcle 061206
glfle 
expires:202511061515;;943376

open lake forecast for lake erie
national weather service cleveland oh
706 am est thu nov 6 2025

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.20 inches briefly builds in for today before
exiting to the east tonight. low pressure 29.30 inches tracks 
across the upper great lakes on friday, moving a cold front across
the lake late friday. another low pressure system of 29.70 inches
will move east across lake erie on sunday with a lingering 
surface trough averaging 30.00 inches persisting through monday.


lez162>164-061515-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
706 am est thu nov 6 2025

.today...northwest winds 5 to 15 knots becoming south less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.tonight...south winds 5 to 10 knots increasing to 15 to
25 knots. waves 1 foot or less building to 3 to 5 feet. 
.friday...south winds 15 to 25 knots becoming southwest. rain.
waves 3 to 6 feet. 
.friday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. rain saturday night. waves 2 feet or less building to
3 to 5 feet. 
.sunday...northwest winds to 30 knots. rain and snow likely
during the day, then snow likely sunday night. waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.monday...northwest winds to 30 knots becoming west. a chance of
snow. waves 3 to 6 feet building to 4 to 7 feet, then subsiding
to 3 to 6 feet. waves occasionally around 9 feet. 

$$
fzus61 kcle 061206
glfle 
expires:202511061515;;943377

open lake forecast for lake erie
national weather service cleveland oh
706 am est thu nov 6 2025

for waters beyond five nautical miles of shore on lake erie

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...
high pressure 30.20 inches briefly builds in for today before
exiting to the east tonight. low pressure 29.30 inches tracks 
across the upper great lakes on friday, moving a cold front across
the lake late friday. another low pressure system of 29.70 inches
will move east across lake erie on sunday with a lingering 
surface trough averaging 30.00 inches persisting through monday.


lez165-166-061515-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
706 am est thu nov 6 2025

.today...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tonight...south winds 5 to 10 knots increasing to 30 knots.
waves 2 feet or less building to 4 to 7 feet. waves occasionally
around 9 feet. 
.friday...south winds to 30 knots becoming southwest. rain. waves
5 to 8 feet building to 6 to 10 feet. waves occasionally around
13 feet. 
.friday night...west winds 15 to 25 knots. a chance of rain in
the evening. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.saturday...northwest winds 5 to 15 knots becoming southeast
15 to 20 knots. rain saturday night. waves 2 to 4 feet building
to 3 to 5 feet. 
.sunday...west winds to 30 knots becoming northwest. rain during
the day, then rain and snow sunday night. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.monday...northwest winds to 30 knots becoming west. snow likely.
waves 6 to 10 feet. waves occasionally around 13 feet. 

$$
fzus63 kdtx 060840
glflh 
expires:202511061645;;934034

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 am est thu nov 6 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across the
ohio valley this morning, then move to the mid atlantic by
evening. this will bring a brief reprieve from the strong winds.
low pressure, 29.30 inches, is then forecast to move into upper
michigan from the west by friday morning. this system will drive
a cold front across lake huron friday. south winds in advance of
this front may approach gales friday morning. brief high pressure
will reside over the region saturday before a more active pattern
with a deepening low pressure system and the arival of arctic air
influences the region sunday into monday.


lhz361-061645-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
340 am est thu nov 6 2025

.today...northwest winds 10 to 15 knots becoming west 5 to
10 knots late in the afternoon. a chance of showers in the
morning. waves 1 to 3 feet. 
.tonight...southwest winds 5 to 10 knots becoming south 10 to
15 knots late in the evening...then increasing to 15 to 20 knots
after midnight. a chance of rain after midnight. waves 1 to
3 feet building to 4 to 6 feet after midnight. waves occasionally
around 8 feet. 
.friday...southwest winds 15 to 20 knots veering to the west with
gusts to around 30 knots early in the afternoon. a chance of
rain. waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday night...west winds 20 to 25 knots with gusts to around
30 knots becoming northwest 10 to 15 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...northwest winds 5 to 10 knots. rain and snow likely
late in the afternoon. waves 2 to 4 feet subsiding to 2 feet or
less. 
.sunday...north winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots early in the evening...then decreasing to 15 to 20 knots
in the late evening and early morning. snow likely. waves 4 to
6 feet. waves occasionally around 8 feet. 
.monday...north winds 15 to 20 knots with gusts to around
30 knots becoming northwest 20 to 25 knots with gusts to around
30 knots early in the evening...then decreasing to 15 to 20 knots
in the late evening and early morning. a chance of snow. waves
4 to 6 feet. 


$$
fzus63 kdtx 060840
glfsc 
expires:202511061645;;934038

lake st clair forecast
national weather service detroit/pontiac mi
340 am est thu nov 6 2025

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across the
ohio valley this morning, then move to the mid atlantic by
evening. this will bring a brief reprieve from the strong winds.
low pressure, 29.30 inches, is then forecast to move into upper
michigan from the west by friday morning. this system will drive
a cold front across lake huron friday. south winds in advance of
this front may approach gales friday morning. brief high pressure
will reside over the region saturday before a more active pattern
with a deepening low pressure system and the arival of arctic air
influences the region sunday into monday.


lcz460-061645-
lake st clair-
340 am est thu nov 6 2025

.today...west winds 5 to 10 knots backing to the southwest late in
the afternoon. mostly sunny. waves 2 feet or less.
.tonight...south winds 10 to 15 knots increasing to 20 to 25 knots.
partly cloudy this evening becoming mostly cloudy. waves 1 to 3 feet
building to 2 to 4 feet early in the morning.
.friday...south winds 20 to 25 knots becoming southwest 15 to 20
knots in the late morning and afternoon. becoming partly sunny early
in the afternoon. rain early in the morning...then a chance of rain
in the late morning and early afternoon. waves 2 to 4 feet subsiding
to 1 to 3 feet in the late morning and afternoon.
.friday night...west winds 15 to 20 knots becoming northwest 10 to
15 knots after midnight. partly cloudy. a chance of light rain until
early morning. waves 1 to 3 feet.
.saturday...northwest winds 10 to 15 knots becoming north 5 to 10
knots in the afternoon...then becoming northeast 10 to 15 knots in
the evening. partly sunny in the morning becoming mostly cloudy.
light rain likely in the evening. waves 2 feet or less.
.sunday...northwest winds 20 to 25 knots. rain with light snow
likely. waves 2 to 4 feet.
.monday...west winds to 30 knots. partly cloudy. light snow likely.
waves 2 to 4 feet. a small craft advisory may be needed.

$$
fzus63 kdtx 060840
glflh 
expires:202511061645;;934036

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 am est thu nov 6 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across the
ohio valley this morning, then move to the mid atlantic by
evening. this will bring a brief reprieve from the strong winds.
low pressure, 29.30 inches, is then forecast to move into upper
michigan from the west by friday morning. this system will drive
a cold front across lake huron friday. south winds in advance of
this front may approach gales friday morning. brief high pressure
will reside over the region saturday before a more active pattern
with a deepening low pressure system and the arival of arctic air
influences the region sunday into monday.


lhz462>464-061645-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
340 am est thu nov 6 2025

.today...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 5 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 10 feet. 
.tonight...southwest winds 5 to 10 knots becoming south 20 to
25 knots with gusts to around 30 knots. a chance of. waves 1 to
3 feet building to 5 to 7 feet. waves occasionally around
10 feet. 
.friday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots in the late morning
and afternoon. rain in the morning. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.friday night...west winds 15 to 20 knots increasing to 20 to
25 knots in the late evening and early morning...then becoming
northwest 15 to 20 knots after midnight. a chance of rain. waves
6 to 9 feet. waves occasionally around 12 feet. 
.saturday...northwest winds 10 to 15 knots becoming north 5 to
10 knots late in the morning...then becoming northeast 10 to
15 knots late in the evening. rain likely late in the afternoon.
waves 4 to 6 feet subsiding to 1 to 3 feet late in the
afternoon...then building to 3 to 5 feet late in the evening.
waves occasionally around 8 feet. 
.sunday...north winds 20 to 25 knots increasing to 30 knots until
early evening...then decreasing to 20 to 25 knots in the late
evening and early morning. gusts to 35 knot gales. rain and snow
early in the morning...then snow until early morning. waves 8 to
12 feet. waves occasionally around 15 feet. 
.monday...northwest winds to 30 knots with gusts to 35 knot
gales. snow likely. waves 10 to 14 feet. waves occasionally
around 18 feet. 


$$
fzus63 kdtx 060840
glflh 
expires:202511061645;;934035

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 am est thu nov 6 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, will expand across the
ohio valley this morning, then move to the mid atlantic by
evening. this will bring a brief reprieve from the strong winds.
low pressure, 29.30 inches, is then forecast to move into upper
michigan from the west by friday morning. this system will drive
a cold front across lake huron friday. south winds in advance of
this front may approach gales friday morning. brief high pressure
will reside over the region saturday before a more active pattern
with a deepening low pressure system and the arival of arctic air
influences the region sunday into monday.


lhz362-363-061645-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
340 am est thu nov 6 2025

.today...northwest winds 10 to 15 knots becoming southwest 5 to
10 knots late in the afternoon. a chance of showers in the
morning. waves 4 to 6 feet subsiding to 1 to 3 feet late in the
afternoon. waves occasionally around 8 feet. 
.tonight...southwest winds 10 to 15 knots becoming south 20 to
25 knots with gusts to around 30 knots. rain likely after
midnight. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.friday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the afternoon. a
chance of rain. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday night...west winds 20 to 25 knots becoming northwest
15 to 20 knots after midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday...north winds 10 to 15 knots becoming northwest 5 to
10 knots late in the morning...then becoming northeast 10 to
15 knots late in the evening. a chance of rain late in the
afternoon. rain and snow likely late in the evening. waves 5 to
7 feet subsiding to 3 to 5 feet late in the morning...then
subsiding to 1 to 3 feet late in the afternoon building to 3 to
5 feet late in the evening. waves occasionally around 10 feet. 
.sunday...north winds 20 to 25 knots increasing to 30 knots until
early evening...then decreasing to 20 to 25 knots in the late
evening and early morning. rain likely early in the morning. snow
likely. waves 8 to 12 feet. waves occasionally around 15 feet. 
.monday...north winds 20 to 25 knots becoming northwest to
30 knots early in the evening...then decreasing to 20 to 25 knots
in the late evening and early morning. snow likely. waves 10 to
14 feet. waves occasionally around 18 feet. 


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