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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est mon jan 19 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 29.5 inch low over quebec this evening will deepen to 
29.3 inches as it moves to labrador by tuesday afternoon. meanwhile, 
a 30.6 inch high will build from the tennessee valley tuesday to off 
the mid atlantic coast wednesday. another 29.8 inch low will move 
from the upper great lakes wednesday to southern quebec by thursday, 
then to the canadian maritimes by friday. an arctic cold front will 
move across the lower great lakes friday.


loz063>065-201000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est mon jan 19 2026

...gale warning in effect through late tuesday night...
...heavy freezing spray warning in effect through late tuesday
night...

.overnight...west gales to 40 knots diminishing to
30 knots. freezing spray. lake effect snow. waves 14 to 19 feet
subsiding to 12 to 16 feet. waves occasionally around 24 feet. 
.tuesday...west winds to 30 knots increasing to 35 knot gales.
heavy freezing spray early. lake effect snow. waves 10 to
15 feet. waves occasionally around 19 feet. 
.tuesday night...west winds to 30 knots becoming southwest. snow
showers in the evening, then a chance of snow showers overnight.
waves 10 to 15 feet subsiding to 7 to 11 feet. waves occasionally
around 19 feet. 
.wednesday...southwest winds to 30 knots becoming south. a chance
of snow in the morning, then snow likely in the afternoon. waves
5 to 8 feet. waves occasionally around 10 feet. 
.wednesday night...south gales to 35 knots becoming southwest.
snow likely in the evening, then snow showers likely overnight.
waves 7 to 11 feet building to 10 to 14 feet. waves occasionally
around 18 feet. 
.thursday...west winds to 30 knots increasing to 40 knot gales.
snow showers likely. waves 10 to 14 feet building to 13 to
18 feet. waves occasionally around 23 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 30 knots. snow showers. waves 11 to 16 feet
subsiding to 7 to 10 feet. waves occasionally around 20 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 1 to 3 feet. 

$$