FZUS61 KBUF 241503 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1003 AM EST Tue Feb 24 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 strong 28.8 inch low will continue to move northeast to the Canadian Maritimes while a 30.1 inch ridge will briefly build over the lower Great Lakes today. A 29.4 inch low will then track from the upper Great Lakes to the Ottawa Valley through Wednesday, with a trailing cold front crossing the lake Wednesday afternoon. A surface low of 29.5 inches will track from the Tennessee Valley to the Gulf of Maine from Thursday through Friday, staying well south and east of the lake. A 28.9 inch low is expected to move near James Bay Saturday. LOZ062-063-242200- Lake Ontario open waters from the Niagara River to Sodus Bay- 1003 AM EST Tue Feb 24 2026 .REST OF TODAY...Northwest winds 15 to 20 knots becoming southwest 10 to 15 knots. A chance of snow showers late this morning. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...South winds 10 to 15 knots becoming southwest and increasing to 15 to 25 knots. Snow. A chance of snow showers late. Waves 1 to 3 feet building to 3 to 6 feet. .WEDNESDAY...Southwest winds 15 to 25 knots becoming west to 30 knots. A chance of snow showers. Waves 3 to 6 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .WEDNESDAY NIGHT...West winds 15 to 25 knots. Snow showers likely. Waves 6 to 10 feet subsiding to 5 to 8 feet. Waves occasionally around 13 feet. .THURSDAY...West winds 5 to 15 knots becoming northwest. Waves 3 to 6 feet subsiding to 1 to 3 feet. .FRIDAY...Southwest winds 10 to 15 knots increasing to 30 knots. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally around 10 feet. .SATURDAY...Southwest winds 20 to 25 knots becoming northwest. A chance of snow showers Saturday night. Waves 5 to 8 feet. Waves occasionally around 10 feet. $$ LOZ064-065-242200- Lake Ontario open waters from Sodus Bay to the Saint Lawrence River- 1003 AM EST Tue Feb 24 2026 .REST OF TODAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots. A chance of snow showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...South winds 5 to 15 knots increasing to 15 to 25 knots. A chance of snow showers late in the evening. Snow after midnight. Waves 2 feet or less building to 3 to 6 feet. .WEDNESDAY...South winds 20 to 25 knots becoming west. Snow likely. Waves 3 to 6 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .WEDNESDAY NIGHT...West winds 15 to 25 knots. Snow showers likely. Waves 6 to 10 feet subsiding to 5 to 8 feet. Waves occasionally around 13 feet. .THURSDAY...West winds 5 to 15 knots becoming northwest. A chance of snow showers during the day. Waves 3 to 6 feet subsiding to 1 to 3 feet. .FRIDAY...South winds 5 to 10 knots increasing to 15 to 25 knots. Waves 2 feet or less building to 3 to 6 feet. .SATURDAY...Southwest winds 15 to 25 knots becoming northwest. A chance of snow showers Saturday night. Waves 5 to 8 feet. Waves occasionally around 10 feet. $$ LOZ061-242200- MAFOR 2416/ ONTARIO WEST 1/2 11610 11510 11410 11317 11437 11537 12530. A chance of snow showers Wednesday morning. Waves 2 to 4 feet subsiding to 1 to 3 feet this afternoon. Waves 1 to 3 feet building to 3 to 6 feet tonight. Waves 3 to 6 feet building to 4 to 7 feet, and occasionally around 9 feet Wednesday morning. ONTARIO EAST 1/2 12610 11500 11310 11327 12437 11537. A chance of snow showers this evening. Waves 2 to 4 feet subsiding to 1 to 3 feet this afternoon. Waves 2 feet or less building to 3 to 6 feet tonight. Waves 3 to 6 feet Wednesday morning. $$