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open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt mon apr 6 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 29.1 inch low over quebec will push a cold front 
across the lake today. a 30.5 inch high will build across the great 
lakes tuesday and tuesday night, before sliding east and off the new 
england coast wednesday. a 29.6 inch surface low will then track 
northeast across ontario and quebec, eventually pushing its trailing 
cold front across the lake thursday night and friday.


loz062-062100-
lake ontario open waters from the niagara river to hamlin beach-
1010 am edt mon apr 6 2026

.rest of today...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers late this morning. waves 2 to
4 feet subsiding to 1 to 2 feet. 
.tonight...west winds 5 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of snow showers early,
then snow showers likely with a chance of rain showers late in
the evening. snow showers likely after midnight. waves 1 to
2 feet building to 3 to 6 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. snow showers likely in the morning. waves 4 to 6 feet
subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots becoming southwest
less than 10 knots. waves 1 to 3 feet subsiding to 1 foot or
less. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
20 knots. waves 2 feet or less building to 2 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming southwest. a
chance of showers thursday night. waves 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 

$$
fzus61 kbuf 061410
glflo 
expires:202604062100;;927165

open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt mon apr 6 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 29.1 inch low over quebec will push a cold front 
across the lake today. a 30.5 inch high will build across the great 
lakes tuesday and tuesday night, before sliding east and off the new 
england coast wednesday. a 29.6 inch surface low will then track 
northeast across ontario and quebec, eventually pushing its trailing 
cold front across the lake thursday night and friday.


loz063>065-062100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1010 am edt mon apr 6 2026

.rest of today...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.tonight...west winds 5 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of snow showers late in
the evening. snow showers likely after midnight. waves 1 to
3 feet building to 3 to 5 feet. 
.tuesday...north winds 15 to 25 knots becoming west. snow showers
likely in the morning, then a chance of snow showers in the
afternoon. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
5 feet. 
.thursday...south winds 15 to 25 knots increasing to 30 knots. a
chance of rain showers thursday night. waves 3 to 6 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.friday...south winds 15 to 20 knots becoming west 5 to 15 knots.
a chance of showers. waves 3 to 5 feet subsiding to 1 to 3 feet. 

$$
fzus61 kcle 061352
glfle 
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open lake forecast for lake erie
national weather service cleveland oh
952 am edt mon apr 6 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...
low pressure 30.00 inches will move east through the great lakes 
today, extending a cold front across the lake. high pressure 
30.60 inches will build across the region tuesday and persist into
wednesday. low pressure 29.80 inches will move east through the 
upper great lakes on thursday, extending a cold front southeast 
across the lower great lakes. this front will remain nearly 
stationary just south of lake erie into friday.


lez061-168-169-062015-
ripley to buffalo ny extending from 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-
952 am edt mon apr 6 2026

.rest of today...west winds 5 to 10 knots. a chance of snow
showers with a slight chance of rain showers late this morning,
then a slight chance of rain and snow showers early this
afternoon. a chance of rain and snow showers late. waves 1 to
2 feet. 
.tonight...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of snow and rain showers through the early
overnight, then a chance of rain showers with a slight chance of
snow showers late. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.wednesday...southeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 2 feet or less building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots. a chance of rain showers
thursday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...south winds 5 to 15 knots becoming north 10 knots or
less. a chance of rain showers. waves 1 to 2 feet. 

$$
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