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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est fri jan 30 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...the core of a 30.9 inch high over central canada will 
build southward across the plains states through saturday...before 
weakening to 30.4 inches and settling across the gulf coast states 
on sunday. in the process...the far northeastern portion of this 
ridge will slide across the central and eastern great lakes sunday 
and monday...with a weakening 30.0 inch trough then sliding across 
the lake tuesday.


loz063>065-310400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est fri jan 30 2026

.tonight...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. lake effect snow. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.saturday...north winds 5 to 10 knots becoming northwest. a
chance of lake effect snow early, then a chance of lake effect
snow showers from late morning on. waves 2 feet or less. 
.saturday night...north winds 5 to 15 knots. waves 2 feet or
less. 
.sunday...north winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 
.sunday night...northwest winds 10 to 15 knots. waves 1 to
3 feet. 
.monday...northwest winds 10 to 15 knots becoming west. waves
2 to 4 feet building to 3 to 5 feet. 
.tuesday...west winds 10 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...north winds 5 to 15 knots. waves 2 feet or less. 

$$