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open lake forecast for lake ontario
national weather service buffalo ny
1003 am est sat feb 28 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 29.1 inch low near james bay will move across northern 
quebec today with a weak secondary cold front then crossing the lake 
tonight. a 30.6 inch high will then settle across the great lakes 
sunday, new england monday, and across the western atlantic tuesday. 
a weak wave of low pressure averaging 30.1 inches will track across 
the ohio valley and lower great lakes tuesday and tuesday night. a 
30.4 inch high will then build across the lower lakes region 
wednesday, with another 29.5 inch low crossing the lake on thursday.


loz064-065-282200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1003 am est sat feb 28 2026

.this afternoon...west winds 15 to 20 knots. waves 3 to 6 feet. 
.tonight...northwest winds 15 to 20 knots becoming north 5 to
15 knots. a chance of snow after midnight. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.sunday...northeast winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of snow showers in the morning. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.sunday night...northwest winds 5 to 15 knots becoming north.
waves 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 2 feet or less building to 2 to 4 feet. 
.tuesday...south winds 15 to 20 knots becoming north. snow and
rain showers likely. waves 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots becoming southeast. a
chance of rain showers wednesday night. waves 1 to 3 feet. 

$$