FZUS61 KBUF 290208 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1008 PM EDT Fri Mar 28 2025 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 warm front will slowly push across western New York overnight. The front will then stall out just south of the lake on Saturday, before meandering across the Lower Lakes Region over the rest of the the weekend while a 29.5 inch low makes its way from the Plains States to the central Great Lakes. This low will lift northeastward into Quebec on Monday while pushing its trailing cold front across the lake. A 30.5 inch high will then build southeast across the Great Lakes Monday night and Tuesday before moving across northern New England on Wednesday. LOZ062-290915- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1008 PM EDT Fri Mar 28 2025 .REST OF TONIGHT...East winds 15 to 20 knots. Rain with a chance of thunderstorms. Waves 3 to 6 feet. .SATURDAY...East winds 15 to 25 knots. Rain likely with a chance of thunderstorms early, then rain showers likely. Rain showers late. Waves 3 to 6 feet. .SATURDAY NIGHT...East winds 15 to 25 knots. Rain showers. Waves 4 to 7 feet. Waves occasionally around 9 feet. .SUNDAY...East winds 15 to 20 knots. Rain. Waves 4 to 7 feet. Waves occasionally around 9 feet. .SUNDAY NIGHT...East winds 10 to 15 knots becoming southwest 15 to 20 knots. Rain with a chance of thunderstorms in the evening, then rain showers with a chance of thunderstorms overnight. Waves 3 to 6 feet subsiding to 2 to 4 feet. .MONDAY...West winds 15 to 20 knots becoming north. Rain showers during the day, then rain showers likely with a chance of snow showers Monday night. Waves 2 to 4 feet building to 3 to 5 feet. .TUESDAY...Northwest winds 15 to 20 knots becoming east. Waves 3 to 5 feet subsiding to 1 to 3 feet. .WEDNESDAY...East winds 15 to 25 knots becoming south. Rain showers likely. Waves 2 to 4 feet building to 3 to 6 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-290915- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1008 PM EDT Fri Mar 28 2025 .REST OF TONIGHT...East winds 15 to 20 knots becoming northeast. Rain late this evening, then rain with a chance of thunderstorms after midnight. Rain, a chance of thunderstorms and freezing rain late. Waves 3 to 5 feet. .SATURDAY...Northeast winds 15 to 20 knots. Rain, freezing rain with a chance of thunderstorms early, then rain and freezing rain. Rain late. Waves 2 to 4 feet building to 3 to 5 feet. .SATURDAY NIGHT...Northeast winds 15 to 20 knots. Rain. Waves 3 to 5 feet subsiding to 2 to 4 feet. .SUNDAY...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots. Rain and freezing rain. Waves 2 to 4 feet building to 3 to 5 feet. .SUNDAY NIGHT...East winds 10 to 15 knots becoming south 15 to 20 knots. Rain showers likely in the evening, then rain showers with a chance of thunderstorms overnight. Waves 2 to 4 feet. .MONDAY...Southwest winds 15 to 20 knots becoming north. Rain showers during the day, then rain showers with a chance of snow showers Monday night. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TUESDAY...Northwest winds 15 to 20 knots becoming northeast 10 to 15 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet. .WEDNESDAY...East winds 15 to 25 knots becoming south to 30 knots. A chance of rain showers during the day, then rain showers likely Wednesday night. Waves 1 to 3 feet building to 3 to 5 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-290915- MAFOR 2903/ ONTARIO WEST 1/2 12226 11210 11216 12226 12236. A chance of thunderstorms overnight and Saturday morning. Waves 3 to 6 feet overnight and Saturday. Waves 4 to 7 feet, and occasionally around 9 feet Saturday evening. ONTARIO EAST 1/2 16126. A chance of thunderstorms overnight and Saturday morning. Waves 3 to 5 feet overnight. Waves 2 to 4 feet building to 3 to 5 feet Saturday. Waves 3 to 5 feet Saturday evening. $$