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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sat jan 10 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...low pressure organizing over the great lakes tonight 
will deepen to 29.5 inches as it reaches southern quebec by sunday 
morning. this initial low will then give way to a secondary 29.5 
inch coastal low over the gulf of maine sunday afternoon, with this 
low rapidly deepening to 28.7 inches as it moves to the canadian 
maritimes by monday morning, then into the north atlantic monday 
night. another 29.3 inch low will then move from northwest ontario 
province tuesday to southern quebec wednesday, with a trailing cold 
front crossing the lake wednesday night.


loz063>065-110400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est sat jan 10 2026

...gale warning in effect through sunday evening...

.tonight...east winds 15 to 25 knots becoming southwest and
increasing to 35 knot gales after midnight. rain this evening,
then a chance of rain showers after midnight. waves 3 to 6 feet
building to 11 to 15 feet. waves occasionally around 19 feet. 
.sunday...southwest gales to 35 knots becoming west. lake effect
snow showers from late morning on. waves 12 to 17 feet. waves
occasionally around 22 feet. 
.sunday night...northwest gales to 35 knots becoming west and
diminishing to 30 knots. a chance of snow showers. waves 12 to
16 feet subsiding to 7 to 10 feet. waves occasionally around
20 feet. 
.monday...west winds 15 to 25 knots increasing to 30 knots. a
chance of snow showers in the morning, then lake effect snow
showers likely in the afternoon. waves 5 to 8 feet building to
6 to 9 feet. waves occasionally around 11 feet. 
.monday night...west winds to 30 knots diminishing to 15 to
20 knots. snow showers likely with a chance of rain showers in
the evening, then a chance of rain and snow showers overnight.
waves 6 to 10 feet subsiding to 5 to 8 feet. waves occasionally
around 13 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of rain
showers during the day, then rain showers likely tuesday night.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds 15 to 25 knots becoming northwest.
rain showers likely during the day, then a chance of snow and
rain showers likely wednesday night. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.thursday...north winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 

$$