• 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- Simcoe & Huron

Human Forecasts
 > Daily Briefing
 > Forecast Blog

Real-Time Data
 > Dynamic Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables

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 230802
glflo 
expires:202608231500;;213902

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun aug 23 2026

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 29.6 inch low northwest of the lake this morning will 
slowly wobble northeastward across southern quebec through monday. 
in response to the low's track a cold front sweeps eastward across 
the lake through midday today. behind the cold front, a trough 
averaging 29.8 inches lingers over lake ontario through monday. on 
tuesday through wednesday, a ridge averaging 30.1 inches builds from 
the western and central great lakes. the ridge should begin to exit 
eastward on thursday and allow a warm front to sweep northeastward 
across lake ontario.


loz062-231500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun aug 23 2026

.today...southwest winds 15 to 25 knots becoming west. a chance
of waterspouts. a chance of showers this morning, then showers
with a chance of thunderstorms this afternoon. waves 1 to 3 feet
building to 3 to 6 feet. 
.tonight...west winds 15 to 25 knots. a chance of waterspouts.
showers likely with a chance of thunderstorms early, then a
chance of showers. showers likely late. waves 4 to 6 feet. 
.monday...southwest winds to 30 knots becoming west. a chance of
waterspouts. showers. waves 4 to 7 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.monday night...west winds 15 to 25 knots. a chance of
waterspouts. showers likely in the evening, then a chance of
showers overnight. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.tuesday...west winds 15 to 20 knots becoming northwest and
diminishing to less than 10 knots. a chance of waterspouts during
the day. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus63 kdtx 230722
glflh 
expires:202608231530;;212686

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 2026

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz362-363-231530-
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-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots increasing to 30 knots in
the late morning and afternoon. a chance of waterspouts in the
morning. waves 8 to 12 feet. waves occasionally around 15 feet. 
.tonight...northwest winds to 30 knots. a chance of waterspouts
in the evening. a chance of showers in the evening...then showers
likely after midnight. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.monday...northwest winds to 30 knots decreasing to 20 to
25 knots in the late morning and afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday night...northwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots after midnight.
waves 4 to 6 feet. 
.tuesday...northwest winds 5 to 10 knots becoming light and
variable...then becoming southeast 5 to 10 knots late in the
evening. waves 2 to 4 feet subsiding to 2 feet or less. waves
occasionally around 8 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. a chance of showers in the late
morning and early afternoon. rain showers likely. a chance of
thunderstorms by midnight. waves 1 to 3 feet building to 2 to
4 feet . 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then becoming west 10 to 15 knots
by midnight. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 


$$
fzus63 kdtx 230722
glflh 
expires:202608231530;;212687

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 2026

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz462>464-231530-
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-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of showers in the morning...then a chance of
showers and thunderstorms in the afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening...then decreasing to 15 to 20 knots
after midnight increasing to 20 to 25 knots early in the morning.
gusts to 30 knots. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.monday...west winds 20 to 25 knots becoming northwest 15 to
20 knots early in the afternoon. gusts to 30 knots. a chance of
showers in the morning. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tuesday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon becoming southeast 5 to 10 knots late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. showers likely and a chance of
thunderstorms . waves 1 to 3 feet building to 2 to 4 feet by
midnight. 
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots early in the evening...then veering to the northwest by
midnight. showers likely early in the morning...then a chance of
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 


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