• 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 252102
glflo 
expires:202512260400;;218110

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu dec 25 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 30.6 inch high will build east across ontario and 
quebec tonight, with a ridge extending southward across the lake. a 
compact 29.7 inch low will then move across ohio and pennsylvania 
friday afternoon through friday night before moving off the mid 
atlantic coast by saturday. a ridge of high pressure averaging 30.2 
inches will then build into quebec and new england saturday through 
saturday night. complex low pressure averaging 29.6 inches will then 
cross the lower great lakes sunday night, before moving to northern 
new england and southern quebec monday, then to the canadian 
maritimes by tuesday while deepening to 28.9 inches.


loz063-260400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est thu dec 25 2025

.tonight...north winds 15 to 20 knots becoming northeast 10 to
15 knots. waves 3 to 6 feet. 
.friday...east winds 15 to 25 knots. a chance of snow showers
late in the morning. snow in the afternoon. waves 2 to 4 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.friday night...east winds 15 to 25 knots. snow. waves 4 to
7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.saturday...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers in the morning. waves 3 to
5 feet subsiding to 1 to 2 feet. 
.saturday night...northeast winds 5 to 10 knots becoming
southeast. waves 1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. rain. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...southwest gales to 35 knots becoming northwest to
40 knots. rain with a chance of snow showers during the day, then
lake effect snow showers likely monday night. waves 7 to 10 feet
building to 16 to 21 feet. waves occasionally around 27 feet. 
.tuesday...northwest gales to 40 knots becoming west and
diminishing to 30 knots. snow showers likely during the day, then
a chance of snow showers tuesday night. waves 14 to 18 feet
subsiding to 9 to 12 feet. waves occasionally around 23 feet. 

$$
fzus61 kbuf 252102
glflo 
expires:202512260400;;218109

open lake forecast for lake ontario
national weather service buffalo ny
402 pm est thu dec 25 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 30.6 inch high will build east across ontario and 
quebec tonight, with a ridge extending southward across the lake. a 
compact 29.7 inch low will then move across ohio and pennsylvania 
friday afternoon through friday night before moving off the mid 
atlantic coast by saturday. a ridge of high pressure averaging 30.2 
inches will then build into quebec and new england saturday through 
saturday night. complex low pressure averaging 29.6 inches will then 
cross the lower great lakes sunday night, before moving to northern 
new england and southern quebec monday, then to the canadian 
maritimes by tuesday while deepening to 28.9 inches.


loz062-260400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est thu dec 25 2025

.tonight...north winds 15 to 20 knots becoming east. waves 3 to
5 feet. 
.friday...east winds 15 to 25 knots increasing to 30 knots. a
chance of snow showers early, then snow from late morning on.
waves 3 to 5 feet building to 6 to 10 feet. waves occasionally
around 13 feet. 
.friday night...east winds 15 to 25 knots becoming northeast.
snow in the evening. waves 5 to 9 feet subsiding to 4 to 7 feet.
waves occasionally around 11 feet. 
.saturday...northeast winds 15 to 20 knots becoming east 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday night...east winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday...east winds 10 to 15 knots becoming south 15 to
20 knots. rain. waves 1 to 3 feet. 
.monday...west winds to 30 knots becoming northwest and
increasing to 40 knot gales. rain with snow showers likely during
the day, then snow showers likely monday night. waves 7 to
10 feet building to 13 to 18 feet. waves occasionally around
23 feet. 
.tuesday...northwest gales to 35 knots becoming west and
diminishing to 30 knots. a chance of snow showers. waves 10 to
15 feet subsiding to 7 to 10 feet. waves occasionally around
19 feet. 

$$
fzus61 kcle 252015
glfle 
expires:202512260315;;216233

open lake forecast for lake erie
national weather service cleveland oh
315 pm est thu dec 25 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 29.60 inches will move east through the ohio valley 
friday into friday night. a ridge averaging 30.10 inches will 
briefly build across the area on saturday. low pressure 29.30 
inches will move east through the great lakes sunday into monday,
extending a strong cold front east across the area. a trough
averaging 30.00 inches will linger into tuesday.


lez061-167>169-260315-
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-
315 pm est thu dec 25 2025

.tonight...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots diminishing to 10 to
15 knots. rain likely late in the morning. rain with possible
freezing rain and sleet early in the afternoon, then rain with
freezing rain likely late. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.friday night...northeast winds 10 to 15 knots becoming north. a
chance of freezing rain in the evening. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.saturday night...east winds 5 to 10 knots becoming southeast.
waves 1 foot or less. 
.sunday...southeast winds 10 to 15 knots becoming southwest and
increasing to 30 knots. rain. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 35 knots becoming northwest. snow and
rain likely during the day, then snow likely monday night. waves
9 to 12 feet building to 10 to 15 feet. waves occasionally around
19 feet. 
.tuesday...west winds to 30 knots. a chance of snow. waves 7 to
11 feet. waves occasionally around 14 feet. 

$$
fzus61 kcle 252015
glfle 
expires:202512260315;;216231

open lake forecast for lake erie
national weather service cleveland oh
315 pm est thu dec 25 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 29.60 inches will move east through the ohio valley 
friday into friday night. a ridge averaging 30.10 inches will 
briefly build across the area on saturday. low pressure 29.30 
inches will move east through the great lakes sunday into monday,
extending a strong cold front east across the area. a trough
averaging 30.00 inches will linger into tuesday.


lez162-163-260315-
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-
315 pm est thu dec 25 2025

.tonight...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a slight chance of freezing rain late. waves 1 to
3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 20 knots becoming northeast 10 to
15 knots. freezing rain in the morning, then rain and freezing
rain in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.friday night...northwest winds 5 to 10 knots becoming north.
waves 2 feet or less. 
.saturday...north winds 5 to 10 knots becoming east. waves 1 foot
or less. 
.saturday night...east winds around 10 knots becoming southeast.
a chance of rain overnight. waves 1 foot or less. 
.sunday...southeast winds around 10 knots becoming west and
increasing to 15 to 25 knots. rain. waves 1 to 3 feet building to
2 to 4 feet. 
.monday...west winds to 30 knots becoming northwest. a chance of
snow and rain during the day. waves 3 to 6 feet. 
.tuesday...west winds 15 to 25 knots. waves 2 to 4 feet. 

$$
fzus61 kcle 252015
glfle 
expires:202512260315;;216232

open lake forecast for lake erie
national weather service cleveland oh
315 pm est thu dec 25 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 29.60 inches will move east through the ohio valley 
friday into friday night. a ridge averaging 30.10 inches will 
briefly build across the area on saturday. low pressure 29.30 
inches will move east through the great lakes sunday into monday,
extending a strong cold front east across the area. a trough
averaging 30.00 inches will linger into tuesday.


lez164>166-260315-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
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-
315 pm est thu dec 25 2025

.tonight...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots diminishing to 10 to
15 knots. a slight chance of rain and freezing rain early, then
rain with freezing rain likely late in the morning. rain in the
afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday...north winds 5 to 10 knots becoming east. waves 1 to
2 feet. 
.saturday night...east winds around 10 knots becoming southeast.
a chance of rain overnight. waves 1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming west and
increasing to 30 knots. rain. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 35 knots becoming northwest. snow and
rain likely during the day, then a chance of snow monday night.
waves 9 to 13 feet. waves occasionally around 16 feet. 
.tuesday...west winds to 30 knots. a chance of snow tuesday
night. waves 6 to 10 feet. waves occasionally around 13 feet. 

$$
fzus63 kdtx 252035
glfsc 
expires:202512260500;;216889

lake st clair forecast
national weather service detroit/pontiac mi
335 pm est thu dec 25 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, 30.50 inches, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lcz460-260500-
lake st clair-
335 pm est thu dec 25 2025

.tonight...east winds 10 to 15 knots. mostly cloudy. waves 2 feet or
less.
.friday...east winds 15 to 20 knots diminishing to 5 to 10 knots
late in the afternoon. light freezing rain until late afternoon.
light rain in the afternoon. waves 1 to 3 feet.
.friday night...north winds 5 to 10 knots. mostly cloudy. waves 2
feet or less.
.saturday...northeast winds 5 to 10 knots veering to the east in the
late morning and afternoon. mostly cloudy. waves 2 feet or less.
.saturday night...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. cloudy. a chance of
light rain after midnight. waves 2 feet or less.
.sunday...southeast winds 10 to 15 knots becoming south 5 to 10
knots in the afternoon...then becoming southwest 10 to 15 knots in
the evening. rain. waves 2 feet or less.
.monday...northwest winds to 30 knots with gusts to 35 knot 
gales. mostly cloudy with light rain with light snow likely. waves
2 to 4 feet. a gale warning may be needed.
.tuesday...southwest winds to 30 knots. mostly cloudy with a 
chance of light snow. waves 2 to 4 feet.

wave heights are for ice free areas.

$$
fzus63 kdtx 252034
glflh 
expires:202512260500;;216884

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, 30.50 inches, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz362-363-260500-
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-
334 pm est thu dec 25 2025

.tonight...east winds 15 to 20 knots increasing to 20 to 25 knots
after midnight. a chance of snow after midnight. waves 5 to
7 feet building to 8 to 12 feet early in the morning. waves
occasionally around 15 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon.
snow. waves 8 to 12 feet. waves occasionally around 15 feet. 
.friday night...southeast winds 10 to 15 knots backing to the
northeast by midnight...then decreasing to 5 to 10 knots after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.saturday...east winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 1 to 3 feet. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.sunday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming northwest 15 to
20 knots with gusts to around 30 knots late in the evening. rain
likely. a chance of snow late in the evening. waves 3 to 5 feet
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.monday...northwest winds to 30 knots with gusts to 35 knot gales
increasing to 40 knot gales. snow likely early in the morning. a 
chance of snow. waves 12 to 16 feet building to 18 to 23 feet. 
waves occasionally around 28 feet. a gale warning may be needed. 
.tuesday...northwest winds to 30 knots with gusts to 35 knot
gales becoming west 20 to 25 knots with gusts to around 30 knots.
a chance of snow. waves 12 to 16 feet subsiding to 6 to 9 feet. 
waves occasionally around 20 feet. 


$$
fzus63 kdtx 252034
glflh 
expires:202512260500;;216885

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, 30.50 inches, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz462>464-260500-
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-
334 pm est thu dec 25 2025

.tonight...northeast winds 15 to 20 knots veering to the east
after midnight. waves 4 to 6 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon. snow
and sleet in the morning...then sleet...freezing rain and snow in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday night...east winds 5 to 10 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.saturday...northeast winds 5 to 10 knots veering to the
southeast early in the afternoon. waves 2 feet or less. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight.
.sunday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 15 to 20 knots
with gusts to around 30 knots late in the evening. rain likely in
the morning...then rain. snow likely late in the evening. waves
3 to 5 feet building to 5 to 7 feet late in the evening. waves
occasionally around 10 feet. 
.monday...northwest winds to 30 knots with gusts to 35 knot gales
increasing to 40 knot gales. rain likely and a chance of snow 
early in the morning. snow likely until early evening...then a 
chance of snow by midnight. waves 12 to 16 feet building to 18 to 
23 feet. waves occasionally around 28 feet. a gale warning may be 
needed. 
.tuesday...northwest winds to 30 knots with gusts to 40 knot
gales becoming west 20 to 25 knots with gusts to 35 knot gales. a
chance of snow. waves 12 to 16 feet subsiding to 6 to 9 feet. 
waves occasionally around 20 feet. 


$$
fzus63 kdtx 252034
glflh 
expires:202512260500;;216883

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, 30.50 inches, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz361-260500-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
334 pm est thu dec 25 2025

.tonight...east winds 15 to 20 knots becoming southeast to
30 knots. snow likely after midnight. waves 3 to 5 feet building
to 6 to 9 feet after midnight. waves occasionally around 12 feet.
.friday...southeast winds to 30 knots decreasing to 15 to
20 knots. snow. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday night...east winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.saturday night...southeast winds 10 to 15 knots. waves 3 to
5 feet. 
.sunday...southeast winds 10 to 15 knots becoming northwest 15 to
20 knots with gusts to around 30 knots late in the evening. rain
likely. rain and snow late in the afternoon. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.monday...northwest winds to 30 knots increasing to 35 knot gales
early in the evening...then decreasing to 30 knots by midnight.
gusts to 40 knot gales. snow likely. a chance of snow by
midnight. waves 10 to 14 feet. waves occasionally around 18 feet.
a gale warning may be needed. 
.tuesday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots. a chance of snow. waves 8 
to 12 feet subsiding to 5 to 7 feet. waves occasionally around 15 
feet. 


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