FZUS61 KBUF 062000 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 400 PM EDT Sat Jul 6 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 29.7 inch low will move across southern Ontario province today before moving down the Saint Lawrence Valley on Sunday. A 30.1 inch high will build into the Ohio Valley and New England Sunday night through Monday before drifting off the east coast Tuesday. A 29.7 inch area of low pressure will lift across the Central Great Lakes Tuesday night, with a warm front extending towards the lake. As this low moves across southern Quebec Wednesday a cold front will cross the lake early in the day. A 30.1 inch high will move into the Great Lakes region Thursday. LOZ062-070315- Lake Ontario open waters from the Niagara River to Hamlin Beach- 400 PM EDT Sat Jul 6 2024 .TONIGHT...Southwest winds 5 to 10 knots becoming west. Waves 1 to 2 feet. .SUNDAY...West winds 5 to 10 knots becoming southwest. Waves 2 feet or less. .SUNDAY NIGHT...Southwest winds less than 10 knots. Waves 1 foot or less. .MONDAY...Light and variable winds becoming east 5 to 10 knots. Waves 1 foot or less. .MONDAY NIGHT...East winds 5 to 10 knots becoming southwest. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 10 knots becoming west. A chance of showers during the day, then a chance of showers and thunderstorms Tuesday night. Waves 1 foot or less. .WEDNESDAY...West winds 5 to 10 knots becoming northeast. A chance of showers during the day. Waves 1 to 2 feet. .THURSDAY...Northeast winds around 10 knots becoming east. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-070315- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 400 PM EDT Sat Jul 6 2024 .TONIGHT...Southwest winds 5 to 10 knots becoming west. Waves 2 feet or less. .SUNDAY...West winds 5 to 15 knots. Waves 1 to 2 feet. .SUNDAY NIGHT...Southwest winds 10 knots or less becoming south. Waves 1 foot or less. .MONDAY...South winds less than 10 knots becoming north. Waves 1 foot or less. .MONDAY NIGHT...East winds 10 knots or less becoming south. Waves 1 foot or less. .TUESDAY...South winds 5 to 10 knots becoming west. A chance of showers during the day, then a chance of showers and thunderstorms Tuesday night. Waves 1 foot or less. .WEDNESDAY...West winds 5 to 10 knots becoming northeast. A chance of showers. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 10 knots becoming southeast. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-070315- MAFOR 0621/ ONTARIO WEST 1/2 12500 15600. Waves 2 feet or less. ONTARIO EAST 1/2 13500 13600 11610 11600. Waves 2 feet or less. $$