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open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun jan 11 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 over southern quebec will pivot a 
secondary cold front across the lake today...before giving way to a 
29.5 inch coastal low over the gulf of maine later this afternoon 
and evening. in its wake...a 30.5 inch high over the tennessee 
valley will briefly ridge across the lower lakes tonight...with its 
axis then sliding out across new england monday. another 29.3 inch 
low will then move from western ontario province tuesday to southern 
quebec wednesday. this system will push its trailing cold front 
across the lake wednesday night...with a secondary coastal low then 
developing along the mid-atlantic coastline thursday.


loz063>065-111600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est sun jan 11 2026

...gale warning in effect through this evening...

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

$$