• CLASSIC SAILFLOW
    Classic myiKitesurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iKitesurf  
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

fzus61 kbuf 282003
glflo 
expires:202609290300;;209645

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 28 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 29.8 inch low just southeast of long island this 
afternoon will continue to drift northeast along the new england 
coast through tuesday while filling to 29.9 inches. this low will 
finally dissipate over the north atlantic wednesday as a 30.1 inch 
high builds to just off the mid atlantic coast. a cold front over 
the upper great lakes wednesday night will cross the lower great 
lakes thursday night. a 30.4 inch high is then forecast to build 
into the upper great lakes friday and the lower great lakes by 
saturday, before exiting into northern maine sunday.


loz062-290300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon sep 28 2026

.tonight...west winds less than 10 knots. patchy fog late. waves
1 foot or less. 
.tuesday...northeast winds less than 10 knots becoming east.
patchy fog early. waves 1 foot or less. 
.tuesday night...southeast winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday night...south winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of showers during the day, then showers likely thursday
night. waves 1 to 2 feet building to 2 to 4 feet, then subsiding
to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. showers
likely during the day. waves 1 to 2 feet. 
.saturday...northeast winds 5 to 10 knots becoming southeast. a
chance of showers saturday night. waves 1 to 2 feet. 

$$
fzus61 kbuf 282003
glflo 
expires:202609290300;;209646

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 28 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 29.8 inch low just southeast of long island this 
afternoon will continue to drift northeast along the new england 
coast through tuesday while filling to 29.9 inches. this low will 
finally dissipate over the north atlantic wednesday as a 30.1 inch 
high builds to just off the mid atlantic coast. a cold front over 
the upper great lakes wednesday night will cross the lower great 
lakes thursday night. a 30.4 inch high is then forecast to build 
into the upper great lakes friday and the lower great lakes by 
saturday, before exiting into northern maine sunday.


loz063>065-290300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon sep 28 2026

.tonight...north winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday night...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...southeast winds 10 knots or less becoming
south 10 to 15 knots. waves 2 feet or less. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers likely thursday night. waves 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots becoming north. showers
likely during the day, then a chance of showers friday night.
waves 1 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming southeast. a
chance of showers saturday night. waves 2 feet or less. 

$$
fzus61 kbuf 282003
glfsl 
expires:202609290300;;209674

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt mon sep 28 2026


slz022-024-290300-
saint lawrence river from cape vincent to saint regis
403 pm edt mon sep 28 2026

.tonight...northeast winds 10 knots or less becoming north.
cloudy.
.tuesday...north winds less than 10 knots. cloudy in the morning,
then clearing. 
.tuesday night...light and variable winds. mainly clear in the
evening, then becoming partly cloudy. 
.wednesday...south winds 10 knots or less becoming southwest.
mostly cloudy in the morning, then becoming partly sunny. 
.wednesday night...southwest winds 10 knots or less becoming
south. mostly cloudy. 
.thursday...south winds 5 to 15 knots becoming west. a chance of
showers thursday night. 
.friday...northwest winds less than 10 knots becoming north. a
chance of showers during the day. 
.saturday...north winds less than 10 knots becoming east. a
chance of showers saturday night. 

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