FZUS61 KBUF 031430 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1030 AM EDT Sun Jul 3 2022 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 30.1 inch high will build across the Lower Great Lakes today and remain in close proximity of the lake through Monday. Tuesday this surface high will exit towards the Atlantic coastline with a weak low pressure trough averaging 29.9 inches moving across the Lower Great Lakes. A 30.0 inch surface high will build across the Great Lakes Wednesday and Thursday. LOZ062-032100- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1030 AM EDT Sun Jul 3 2022 .THIS AFTERNOON...West winds 5 to 10 knots becoming southwest. Waves 2 feet or less. .TONIGHT...Southwest winds 10 knots or less. Waves 1 foot or less. .MONDAY...Southwest winds 10 knots or less becoming east. Waves 1 foot or less. .MONDAY NIGHT...East winds 5 to 10 knots becoming southwest. A chance of showers overnight. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 15 knots becoming north. Showers likely with a chance of thunderstorms. Waves 2 feet or less. .WEDNESDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to 2 feet. .THURSDAY...East winds 5 to 10 knots becoming northeast. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-032100- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1030 AM EDT Sun Jul 3 2022 .THIS AFTERNOON...Northwest winds 5 to 15 knots becoming west. Waves 1 to 3 feet. .TONIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet. .MONDAY...West winds 5 to 10 knots becoming southeast. Waves 2 feet or less. .MONDAY NIGHT...East winds 5 to 10 knots becoming south. A chance of showers. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 15 knots becoming north. Showers likely with a chance of thunderstorms. Waves 2 feet or less. .WEDNESDAY...Northeast winds 5 to 15 knots becoming east. A chance of showers during the day. Waves 2 feet or less. .THURSDAY...Southeast winds 5 to 10 knots becoming east. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-032100- MAFOR 0315/ ONTARIO WEST 1/2 11600 12500 13600 11500 11400. Waves 2 feet or less. ONTARIO EAST 1/2 11600 14610 12600 11500. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Monday morning. $$