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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sat jan 17 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 29.8 inch low will move east across southern quebec 
tonight. a 29.6 inch low will then move from near lake superior 
sunday night to central quebec by later monday night, while pushing 
an arctic cold front across the lake monday afternoon. a 30.5 inch 
high will then slide east across the southeastern states tuesday and 
tuesday night, with a 29.8 inch low then making its way across the 
central great lakes wednesday, then into central quebec thursday.


loz063>065-181000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est sat jan 17 2026

...gale watch in effect from monday morning through late tuesday
night...

.overnight...west winds to 30 knots becoming southwest. a
chance of snow showers late. waves 7 to 11 feet. waves
occasionally around 14 feet. 
.sunday...southwest winds to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves 6 to 10 feet subsiding
to 3 to 6 feet. waves occasionally around 13 feet. 
.sunday night...southwest winds 15 to 25 knots. lake effect snow
likely. waves 3 to 6 feet. 
.monday...southwest winds to 30 knots increasing to 40 knot gales
in the afternoon. lake effect snow. heavy freezing spray in the
afternoon. waves 4 to 7 feet building to 13 to 17 feet. waves
occasionally around 22 feet. 
.monday night...west gales to 40 knots diminishing to 30 knots.
heavy freezing spray. lake effect snow. waves 15 to 20 feet
subsiding to 12 to 16 feet. waves occasionally around 26 feet. 
.tuesday...west gales to 35 knots becoming southwest and
diminishing to 30 knots. heavy freezing spray. lake effect snow.
waves 10 to 14 feet subsiding to 8 to 11 feet. waves occasionally
around 18 feet. 
.wednesday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales. a chance of snow showers during the
day, then snow showers likely wednesday night. waves 5 to 9 feet
building to 10 to 15 feet. waves occasionally around 19 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. a
chance of snow showers. waves 10 to 15 feet subsiding to 9 to
12 feet. waves occasionally around 19 feet. 

$$