• 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 ·
xt_ East Coast USA

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 222002
glflo 
expires:202608230300;;184488

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat aug 22 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 high pressure ridge averaging 30.1 inches exits toward 
the canadian maritimes today. elsewhere, a 29.6 inch low should 
wobble northeastward from the central great lakes to southwestern 
quebec through monday. in response to the low's track, a warm front 
drifts northeastward across lake ontario tonight and then a cold 
front sweeps eastward across the lake overnight tonight through 
sunday. 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.


loz062-230300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sat aug 22 2026

.tonight...east winds 5 to 15 knots becoming south. showers with
a chance of thunderstorms. some thunderstorms may be severe with
strong winds and large hail early. waves 1 to 2 feet. 
.sunday...southwest winds 15 to 20 knots becoming west. a chance
of waterspouts. showers likely early, then a chance of showers
late in the morning. showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet building to
3 to 6 feet. 
.sunday night...west winds 15 to 20 knots. a chance of
waterspouts. showers likely with a chance of thunderstorms in the
evening, then showers overnight. waves 4 to 6 feet. 
.monday...southwest winds 15 to 25 knots becoming west. a chance
of waterspouts. showers. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.monday night...west winds 15 to 20 knots. a chance of
waterspouts. showers likely in the evening, then a chance of
showers overnight. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 10 knots or
less. a chance of waterspouts during the day. showers likely
during the day. waves 2 to 4 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 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 222002
glflo 
expires:202608230300;;184489

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat aug 22 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 high pressure ridge averaging 30.1 inches exits toward 
the canadian maritimes today. elsewhere, a 29.6 inch low should 
wobble northeastward from the central great lakes to southwestern 
quebec through monday. in response to the low's track, a warm front 
drifts northeastward across lake ontario tonight and then a cold 
front sweeps eastward across the lake overnight tonight through 
sunday. 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.


loz063>065-230300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat aug 22 2026

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

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 222152
glfle 
expires:202608230215;;189382

open lake forecast for lake erie
national weather service cleveland oh
552 pm edt sat aug 22 2026

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...
a cold front will move east through the area this evening. a 
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday
before departing to the east on wednesday. low pressure 29.80
inches moves across the northern great lakes wednesday into
thursday.


lez061-230215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
552 pm edt sat aug 22 2026

.tonight...south winds 5 to 15 knots becoming west. a chance of
waterspouts. showers with thunderstorms likely early, then
showers with a chance of thunderstorms from late evening on. some
thunderstorms may be severe with damaging winds and large hail
early. waves 2 feet or less building to 2 to 3 feet. 
.sunday...west winds 15 to 20 knots. a chance of waterspouts.
showers likely with a chance of thunderstorms. waves 2 to 3 feet
building to 3 to 6 feet. 
.sunday night...west winds 15 to 25 knots. a chance of
waterspouts. showers likely with a chance of thunderstorms. waves
3 to 6 feet. 
.monday...west winds 15 to 25 knots. a chance of waterspouts.
showers likely. waves 3 to 6 feet building to 5 to 7 feet. waves
occasionally around 9 feet. 
.monday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the evening. a chance of
waterspouts. waves 3 to 6 feet subsiding to 2 to 3 feet. 
.tuesday...west winds 10 to 15 knots becoming southwest less than
10 knots. waves 1 to 2 feet. 
.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. waves around 1 foot. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 222152
glfle 
expires:202608230215;;189381

open lake forecast for lake erie
national weather service cleveland oh
552 pm edt sat aug 22 2026

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...
a cold front will move east through the area this evening. a 
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday
before departing to the east on wednesday. low pressure 29.80
inches moves across the northern great lakes wednesday into
thursday.


lez166>169-230215-
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-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-
552 pm edt sat aug 22 2026

...severe thunderstorm watch 614 in effect until 9 pm edt this
evening...

.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. a chance of waterspouts. showers with
thunderstorms likely early, then showers likely with a chance of
thunderstorms late this evening. a chance of showers and
thunderstorms after midnight. some thunderstorms may be severe
with damaging winds and large hail early. waves 1 to 3 feet
building to 3 to 5 feet. 
.sunday...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts. a chance of showers with a slight chance of
thunderstorms through early afternoon, then a chance of showers
and thunderstorms late. waves 3 to 6 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west. a
chance of waterspouts. showers likely with a chance of
thunderstorms in the evening, then a chance of showers overnight.
waves 3 to 6 feet. 
.monday...west winds 15 to 25 knots. a chance of showers in the
morning. a chance of waterspouts. waves 4 to 7 feet. waves
occasionally around 9 feet. 
.monday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 10 knots becoming southwest.
waves 2 feet or less. 
.wednesday...south winds 5 to 15 knots. a chance of showers
wednesday night. waves 2 feet or less. 
.thursday...south winds 5 to 15 knots becoming west. a chance of
showers. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 222046
glfle 
expires:202608230245;;186702

open lake forecast for lake erie
national weather service cleveland oh
446 pm edt sat aug 22 2026

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...
a cold front will move east through the area this evening. a 
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday
before departing to the east on wednesday. low pressure 29.80
inches moves across the northern great lakes wednesday into
thursday.


lez061-167>169-230245-
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-
446 pm edt sat aug 22 2026

...severe thunderstorm watch 614 in effect until 9 pm edt this
evening...

.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. a chance of waterspouts. showers with
thunderstorms likely early, then showers likely with a chance of
thunderstorms late this evening. a chance of showers and
thunderstorms after midnight. some thunderstorms may be severe
with damaging winds and large hail early. waves 1 to 3 feet
building to 3 to 5 feet. 
.sunday...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts. a chance of showers with a slight chance of
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 3 to 6 feet. 
.sunday night...west winds 15 to 25 knots. a chance of
waterspouts. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 3 to 6 feet. 
.monday...west winds 15 to 25 knots. a chance of waterspouts. a
chance of showers. waves 4 to 7 feet. waves occasionally around
9 feet. 
.monday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of waterspouts in the evening. waves
3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.wednesday...south winds 5 to 15 knots. waves 2 feet or less. 
.thursday...south winds 5 to 15 knots becoming southwest. a
chance of showers. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

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