FZUS61 KBUF 030302 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1002 PM EST Mon Feb 2 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 ridge averaging 30.2 inches will build east across the lower Great Lakes today before moving to the east coast Tuesday. A 29.9 inch low will move from just north of Georgian Bay Tuesday morning to the lower Saint Lawrence Valley by Wednesday. A 30.4 inch high will then settle into the lower Ohio Valley Wednesday through Thursday. A strong cold front will then cross the lower Great Lakes Friday, with a 30.6 inch high building into the central Great Lakes and Ohio Valley Saturday in the wake of the front. LOZ062-031000- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1002 PM EST Mon Feb 2 2026 .OVERNIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of snow showers. Waves 2 to 3 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west. A chance of snow showers from late morning on. Waves 2 to 4 feet building to 3 to 5 feet. .TUESDAY NIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. A chance of snow showers. Waves 3 to 5 feet subsiding to 2 to 4 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming west. A chance of snow showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots. A chance of snow showers. Waves 1 to 3 feet. .THURSDAY...Northwest winds 10 to 15 knots becoming southwest and increasing to 15 to 25 knots. A chance of snow showers during the day, then a chance of snow Thursday night. Waves 2 to 3 feet building to 3 to 6 feet. .FRIDAY...Southwest winds to 30 knots becoming northwest. Snow. Waves 5 to 8 feet building to 7 to 11 feet. Waves occasionally around 14 feet. .SATURDAY...Northwest winds 15 to 25 knots. Waves 5 to 8 feet subsiding to 3 to 5 feet. Waves occasionally around 10 feet. $$ LOZ063>065-031000- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1002 PM EST Mon Feb 2 2026 .OVERNIGHT...Southwest winds 10 to 15 knots. Waves 1 to 3 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west. A chance of snow showers. Lake effect snow showers likely late. Waves 1 to 3 feet building to 3 to 5 feet. .TUESDAY NIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. A chance of snow showers. Waves 3 to 5 feet subsiding to 2 to 4 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming west. A chance of snow showers. Waves 1 to 3 feet. .WEDNESDAY NIGHT...West winds 10 to 15 knots becoming northwest. A chance of snow showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. .THURSDAY...Northwest winds 10 to 15 knots becoming southwest 15 to 20 knots. Snow showers likely during the day, then a chance of snow Thursday night. Waves 1 to 3 feet building to 3 to 5 feet. .FRIDAY...Southwest winds 15 to 20 knots becoming northwest and increasing to 30 knots. Snow. Waves 3 to 5 feet building to 9 to 12 feet. Waves occasionally around 15 feet. .SATURDAY...Northwest winds to 30 knots diminishing to 15 to 20 knots. Waves 6 to 10 feet subsiding to 4 to 7 feet. Waves occasionally around 13 feet. $$ LOZ061-031000- MAFOR 0304/ ONTARIO WEST 1/2 13510 11520 13620 11720. A chance of snow showers Tuesday afternoon and Tuesday evening. Waves 1 to 3 feet overnight. Waves 2 to 4 feet building to 3 to 5 feet Tuesday. Waves 3 to 5 feet Tuesday evening. ONTARIO EAST 1/2 13510 12520 13620. A chance of lake effect snow showers Tuesday afternoon. A chance of snow showers Tuesday evening. Waves 1 to 3 feet overnight. Waves 1to 3 feet building to 3 to 5 feet Tuesday. Waves 3 to 5 feet Tuesday evening. $$