• 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- Lake Ontario

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 152102
glflo 
expires:202601160400;;942846

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu jan 15 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 29.0 inch low over new england this evening will move 
northeast across the canadian maritimes through friday. a 29.4 inch 
low will then move from near lake superior late friday to lake huron 
by saturday afternoon while weakening to 29.7 inches. this low will 
continue to move east across southern quebec saturday night. another 
29.4 inch low will then move from near lake superior sunday night to 
central quebec monday night, with a strong arctic cold front 
crossing the lake late monday.


loz062-160400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est thu jan 15 2026

.tonight...northwest winds 15 to 20 knots becoming west. snow
early, then a chance of snow showers from late evening on. waves
3 to 6 feet. 
.friday...west winds 15 to 20 knots becoming south. a chance of
snow showers. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...south winds 15 to 20 knots becoming southwest. a
chance of snow showers. waves 2 to 4 feet building to 3 to
5 feet. 
.saturday...southwest winds 15 to 20 knots. a chance of snow
showers. waves 2 to 4 feet building to 3 to 5 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of snow showers. waves 3 to 6 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.sunday...southwest winds to 30 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.monday...southwest gales to 35 knots becoming west to 40 knots.
snow showers likely. waves 9 to 12 feet building to 13 to
18 feet. waves occasionally around 23 feet. 
.tuesday...west gales to 35 knots becoming southwest and
diminishing to 30 knots. snow showers likely. waves 10 to 14 feet
subsiding to 7 to 10 feet. waves occasionally around 18 feet. 

$$
fzus61 kbuf 152102
glflo 
expires:202601160400;;942847

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu jan 15 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 29.0 inch low over new england this evening will move 
northeast across the canadian maritimes through friday. a 29.4 inch 
low will then move from near lake superior late friday to lake huron 
by saturday afternoon while weakening to 29.7 inches. this low will 
continue to move east across southern quebec saturday night. another 
29.4 inch low will then move from near lake superior sunday night to 
central quebec monday night, with a strong arctic cold front 
crossing the lake late monday.


loz063>065-160400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est thu jan 15 2026

.tonight...northwest winds 15 to 25 knots. snow this evening,
then a chance of snow showers after midnight. waves 5 to 8 feet.
waves occasionally around 10 feet. 
.friday...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 10 knots in the afternoon. a chance of snow
showers in the morning. a chance of snow showers late. waves 5 to
8 feet subsiding to 1 to 3 feet. waves occasionally around
10 feet. 
.friday night...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of snow showers. waves 1 to 3 feet building to
3 to 5 feet. 
.saturday...south winds 15 to 20 knots becoming southwest. a
chance of snow showers in the morning, then snow showers likely
with a chance of rain showers in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots. snow showers
likely in the evening, then a chance of snow showers overnight.
waves 3 to 5 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 
.sunday...southwest winds 20 to 25 knots. snow showers likely.
waves 5 to 9 feet subsiding to 5 to 8 feet. waves occasionally
around 11 feet. 
.monday...southwest gales to 35 knots becoming west and
increasing to 45 knots. snow showers likely. waves 9 to 12 feet
building to 17 to 22 feet, then subsiding to 16 to 21 feet. waves
occasionally around 28 feet. 
.tuesday...west gales to 35 knots becoming southwest and
diminishing to 30 knots. snow showers likely. waves 13 to 17 feet
subsiding to 9 to 12 feet. waves occasionally around 22 feet. 

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