FZUS61 KBUF 032027 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 427 PM EDT Sat Aug 3 2024 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 29.6 inch low will slowly move across the lower Great Lakes today. A frontal boundary will slowly cross the lower Great Lakes from the north Sunday through Monday. A 30.1 inch high will then build across the upper Great Lakes on Tuesday and Wednesday while the frontal boundary remains stalled just south of the lake. LOZ062-040300- Lake Ontario open waters from the Niagara River to Hamlin Beach- 427 PM EDT Sat Aug 3 2024 .TONIGHT...Southwest winds 5 to 10 knots becoming west. Waves around 1 foot. .SUNDAY...West winds 5 to 10 knots. Waves 2 feet or less. .SUNDAY NIGHT...West winds 5 to 10 knots. A chance of showers overnight. Waves around 1 foot. .MONDAY...West winds 10 to 15 knots. A chance of showers. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots becoming northeast. A chance of showers. Waves 1 to 3 feet. .TUESDAY...Northeast winds 10 to 15 knots becoming east. A chance of showers. Waves 1 to 3 feet. .WEDNESDAY...East winds 5 to 15 knots becoming southeast. Waves 1 to 3 feet. .THURSDAY...East winds 10 knots or less becoming north 10 to 15 knots. Waves 2 feet or less. $$ LOZ063>065-040300- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 427 PM EDT Sat Aug 3 2024 .TONIGHT...Southwest winds 5 to 10 knots becoming west. Waves 1 foot or less. .SUNDAY...West winds 5 to 10 knots. Waves 1 to 2 feet. .SUNDAY NIGHT...West winds 5 to 10 knots. A chance of showers overnight. Waves 1 to 2 feet. .MONDAY...West winds 5 to 15 knots. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots becoming northeast 15 to 20 knots. A chance of showers and thunderstorms in the evening, then a chance of showers overnight. Waves 1 to 2 feet. .TUESDAY...Northeast winds 5 to 15 knots becoming east. A chance of showers. Waves 2 feet or less. .WEDNESDAY...East winds 5 to 15 knots becoming southeast. Waves 2 feet or less. .THURSDAY...Southeast winds 5 to 15 knots becoming north. A chance of rain Thursday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-040300- MAFOR 0321/ ONTARIO WEST 1/2 12500 15600. Waves 2 feet or less. ONTARIO EAST 1/2 14500 14600. A chance of showers early this evening. Waves 2 feet or less. $$