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ON- Lake Ontario

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu jan 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 29.6 inch low will move from quebec to the canadian 
maritimes through friday. a series of cold fronts will move through 
the lower great lakes, with the final arctic front crossing the lake 
on friday. a strong 30.9 inch high will then build from the northern 
plains friday to the great lakes saturday, then northern new england 
by sunday. a 29.7 inch low over the southeast united states sunday 
morning will move to the mid atlantic sunday afternoon, then off the 
new england coast monday while deepening to 29.2 inches. the next 
weak area of low pressure of 29.9 inches will slide across the great 
lakes tuesday.


loz062-231000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est thu jan 22 2026

...gale warning in effect through friday evening...

.rest of tonight...west winds to 30 knots increasing to 35 knot
gales. a chance of snow showers late this evening, then lake
effect snow showers likely after midnight. waves 10 to 14 feet.
waves occasionally around 18 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 30 knots in the afternoon. lake effect snow
showers. waves 10 to 14 feet. waves occasionally around 18 feet. 
.friday night...northwest winds to 30 knots diminishing to 15 to
20 knots. lake effect snow showers in the evening, then a chance
of snow showers overnight. waves 8 to 11 feet subsiding to 3 to
6 feet. waves occasionally around 14 feet. 
.saturday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.saturday night...southwest winds 5 to 15 knots becoming east. a
chance of snow showers in the evening, then a chance of snow
overnight. waves 2 feet or less. 
.sunday...east winds 15 to 25 knots becoming northeast. snow.
waves 3 to 5 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.monday...north winds 15 to 25 knots becoming west. a chance of
snow showers. waves 5 to 8 feet. waves occasionally around
10 feet. 
.tuesday...southwest winds to 30 knots becoming west. waves 6 to
10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 

$$
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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu jan 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 29.6 inch low will move from quebec to the canadian 
maritimes through friday. a series of cold fronts will move through 
the lower great lakes, with the final arctic front crossing the lake 
on friday. a strong 30.9 inch high will then build from the northern 
plains friday to the great lakes saturday, then northern new england 
by sunday. a 29.7 inch low over the southeast united states sunday 
morning will move to the mid atlantic sunday afternoon, then off the 
new england coast monday while deepening to 29.2 inches. the next 
weak area of low pressure of 29.9 inches will slide across the great 
lakes tuesday.


loz063>065-231000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est thu jan 22 2026

...gale warning in effect through friday evening...

.rest of tonight...west gales to 35 knots. lake effect snow
showers. waves 12 to 16 feet. waves occasionally around 20 feet. 
.friday...west gales to 35 knots. lake effect snow showers. waves
12 to 17 feet. waves occasionally around 22 feet. 
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots overnight. lake effect snow showers in the evening, then
a chance of snow showers overnight. waves 11 to 15 feet subsiding
to 4 to 7 feet. waves occasionally around 19 feet. 
.saturday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers in the morning. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.saturday night...northwest winds 10 knots or less becoming east
10 to 15 knots. a chance of snow showers in the evening, then a
chance of snow overnight. waves 2 feet or less. 
.sunday...east winds 15 to 20 knots becoming northeast. snow.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.monday...north winds 15 to 25 knots becoming northwest. snow
showers likely during the day, then a chance of snow showers
monday night. waves 3 to 6 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.tuesday...west winds 15 to 25 knots. a chance of snow showers.
waves 6 to 10 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 

$$
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