• 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 231502
glflo 
expires:202511232200;;368256

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james 
bay, sending its cold front across the lake this afternoon. a 30.2 
inch high is then forecast to build across the ohio valley monday. 
on tuesday a 29.5 inch low to the north of lake superior will swing 
a cold front across the lake by tuesday night. the surface low will 
then track well north of the lake wednesday and thursday.


loz062-232200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sun nov 23 2025

.rest of today...west winds 15 to 25 knots. a chance of showers.
waves 3 to 6 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of showers early. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.monday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 
.monday night...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots. showers likely. waves
1 foot or less. 
.wednesday...southwest winds 15 to 20 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain showers likely with a chance of snow showers wednesday
night. waves 2 to 4 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.thursday...west gales to 35 knots. a chance of snow showers.
waves 10 to 14 feet subsiding to 8 to 11 feet. waves occasionally
around 18 feet. 

$$
fzus61 kbuf 231502
glflo 
expires:202511232200;;368257

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 23 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 29.5 inch low will move from northern ontario to james 
bay, sending its cold front across the lake this afternoon. a 30.2 
inch high is then forecast to build across the ohio valley monday. 
on tuesday a 29.5 inch low to the north of lake superior will swing 
a cold front across the lake by tuesday night. the surface low will 
then track well north of the lake wednesday and thursday.


loz063-232200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sun nov 23 2025

.rest of today...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of showers late this morning, then showers
likely this afternoon. waves 3 to 5 feet building to 7 to
10 feet. waves occasionally around 13 feet. 
.tonight...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a chance of showers early. waves
6 to 10 feet subsiding to 4 to 7 feet. waves occasionally around
13 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.monday night...south winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots. showers likely. waves
2 feet or less. 
.wednesday...south winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain showers likely during the day,
then rain and snow showers likely wednesday night. waves 1 to
3 feet building to 10 to 15 feet. waves occasionally around
19 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely during the day, then snow showers likely
thursday night. waves 11 to 16 feet subsiding to 10 to 14 feet.
waves occasionally around 20 feet. 

$$
fzus61 kcle 231505
glfle 
expires:202511232130;;368442

open lake forecast for lake erie
national weather service cleveland oh
1005 am est sun nov 23 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...
low pressure 29.70 inches will depart through the eastern great
lakes this afternoon allowing high pressure 30.30 inches to build
over lake erie tonight and monday. another area of low pressure 
29.70 inches will lift into the upper midwest tuesday. this low 
will lift a warm front north through the region on tuesday, 
followed by a cold front on wednesday as the low deepens to 29.20
inches over the northern great lakes. a surface trough averaging 
29.90 inches will then linger across the area through friday.


lez165>167-232130-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
1005 am est sun nov 23 2025

.this afternoon...west winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.tonight...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.monday night...south winds 10 to 15 knots. a chance of rain
overnight. waves 1 to 2 feet. 
.tuesday...south winds 5 to 15 knots becoming southwest. rain
during the day, then a chance of rain tuesday night. waves 1 to
3 feet. 
.wednesday...southwest winds to 30 knots becoming west. a chance
of rain during the day, then a chance of snow and rain wednesday
night. waves 5 to 8 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.thursday...west winds to 30 knots. a chance of snow. waves 8 to
12 feet. waves occasionally around 15 feet. 

$$
fzus61 kcle 231505
glfle 
expires:202511232130;;368443

open lake forecast for lake erie
national weather service cleveland oh
1005 am est sun nov 23 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...
low pressure 29.70 inches will depart through the eastern great
lakes this afternoon allowing high pressure 30.30 inches to build
over lake erie tonight and monday. another area of low pressure 
29.70 inches will lift into the upper midwest tuesday. this low 
will lift a warm front north through the region on tuesday, 
followed by a cold front on wednesday as the low deepens to 29.20
inches over the northern great lakes. a surface trough averaging 
29.90 inches will then linger across the area through friday.


lez061-168-169-232130-
ripley to buffalo ny extending from 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-
1005 am est sun nov 23 2025

.this afternoon...west winds 20 to 25 knots. waves 5 to 7 feet.
waves occasionally around 9 feet. 
.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to 5 to 15 knots. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 
.monday...west winds 5 to 10 knots becoming south. waves 1 to
2 feet. 
.monday night...south winds 10 to 15 knots. waves 1 to 2 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest. rain
during the day, then a chance of rain tuesday night. waves 1 to
2 feet. 
.wednesday...southwest winds to 30 knots becoming west. rain
likely during the day, then a chance of rain and snow wednesday
night. waves 4 to 7 feet building to 10 to 14 feet. waves
occasionally around 18 feet. 
.thursday...west winds to 30 knots. snow likely. waves 9 to
13 feet. waves occasionally around 16 feet. 

$$
fzus61 kcle 231505
glfle 
expires:202511232130;;368441

open lake forecast for lake erie
national weather service cleveland oh
1005 am est sun nov 23 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...
low pressure 29.70 inches will depart through the eastern great
lakes this afternoon allowing high pressure 30.30 inches to build
over lake erie tonight and monday. another area of low pressure 
29.70 inches will lift into the upper midwest tuesday. this low 
will lift a warm front north through the region on tuesday, 
followed by a cold front on wednesday as the low deepens to 29.20
inches over the northern great lakes. a surface trough averaging 
29.90 inches will then linger across the area through friday.


lez162>164-232130-
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-
1005 am est sun nov 23 2025

.this afternoon...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
1 foot or less. 
.monday night...south winds around 10 knots. rain likely
overnight. waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. rain during the day, then a chance
of rain tuesday night. waves 1 to 3 feet. 
.wednesday...southwest winds to 30 knots becoming west. a chance
of rain during the day. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.thursday...west winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 

$$
fzus63 kdtx 231445
glflh 
expires:202511232245;;367577

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lhz361-362-232245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
945 am est sun nov 23 2025

...gale warning in effect until 4 pm est this afternoon...

.rest of today...northwest winds 20 to 25 knots with gusts to
35 knot gales. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tonight...northwest winds 15 to 20 knots becoming west 10 to
15 knots late in the evening...then becoming southwest 5 to
10 knots after midnight. waves 6 to 9 feet subsiding to 2 to
4 feet. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the afternoon. waves 2 to
4 feet building to 4 to 6 feet in the late morning and afternoon.
waves occasionally around 8 feet. 
.monday night...south winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. a chance of rain.
waves 3 to 5 feet. 
.tuesday...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the evening. rain likely...then a chance of rain late in
the afternoon. rain likely late in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest to
30 knots with gusts to 40 knot gales in the late morning and
early afternoon...then becoming west at 35 knot gales with gusts
to 40 knot gales until early morning. rain likely early in the
morning. snow. waves 6 to 9 feet building to 12 to 16 feet. waves
occasionally around 20 feet. a gale warning may be needed. 
.thursday...west at 35 knot gales decreasing to 30 knots in the
late morning and early afternoon...then becoming northwest at
35 knot gales early in the evening decreasing to 30 knots in the
late evening and early morning. snow likely...then a chance of
snow in the late evening and early morning. waves 12 to 16 feet.
waves occasionally around 20 feet. 


$$
fzus63 kdtx 231445
glfsc 
expires:202511232245;;367580

lake st clair forecast
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lcz460-232245-
lake st clair-
945 am est sun nov 23 2025

.rest of today...west winds 15 to 20 knots. mostly sunny. waves 1 to
3 feet.
.tonight...west winds 10 to 15 knots diminishing to 5 to 10 knots in
the late evening and overnight. mostly clear. waves 2 feet or less.
.monday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.monday night...south winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. cloudy. a chance of light rain after midnight.
waves 2 feet or less.
.tuesday...south winds 5 to 10 knots veering to the southwest in the
evening. mostly cloudy. light rain likely. waves 2 feet or less.
.wednesday...west at 35 knot gales. mostly cloudy with a chance of
light rain. waves 3 to 5 feet. waves occasionally around 7 feet.  a
gale warning may be needed.
.thursday...west at 35 knot gales. partly cloudy. waves 3 to 5 feet.
waves occasionally around 7 feet.

$$
fzus63 kdtx 231445
glflh 
expires:202511232245;;367578

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am est sun nov 23 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...as a cold front exits the central great lakes,
northwest wind gusts increase to 35 knot gales across the north
half of lake huron this morning. these winds quickly diminish by
this evening as a ridge of high pressure, 30.20 inches, moves
into the region.


lhz363-462>464-232245-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
945 am est sun nov 23 2025

.rest of today...west winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and afternoon. waves 2 to 4 feet
building to 4 to 6 feet in the late morning and afternoon. waves
occasionally around 8 feet. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of rain
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then increasing to 10 to 15 knots late in
the evening. rain likely...then a chance of rain late in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet late in the
evening. 
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest to 30 knots with gusts to 40 knot
gales in the late morning and early afternoon...then becoming
west at 40 knot gales until early morning. a chance of rain. a
chance of snow until early evening...then snow likely in the late
evening and early morning. waves 6 to 9 feet building to 14 to
18 feet. waves occasionally around 23 feet. a gale warning may be
needed. 
.thursday...west at 35 knot gales with gusts to 40 knot gales.
snow likely. waves 12 to 16 feet. waves occasionally around
19 feet. 


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