####018004052#### FZUS61 KBUF 100215 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1015 PM EDT Tue Apr 9 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 weakening 29.8 inch trough will then wash out as it approaches the lower Great Lakes from the west on Wednesday. Another 29.6 inch low over the Deep South will track northeastward to near Lake Erie and deepen to 29.1 inches by later Thursday. This low will begin to fill Thursday night, while pushing a cold front across the Lake. A secondary cold front will pass across the Lake Friday night. A 29.9 inch ridge of high pressure will move across the Lake by Saturday night. A 29.6 inch area of low pressure may move across the Lake Sunday. LOZ062-100900- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1015 PM EDT Tue Apr 9 2024 .OVERNIGHT...Southwest winds 10 to 15 knots. A chance of showers. Waves 1 to 2 feet. .WEDNESDAY...West winds 5 to 10 knots becoming southwest. Waves 2 feet or less. .WEDNESDAY NIGHT...South winds 5 to 15 knots becoming east. Showers overnight. Waves 1 foot or less building to 1 to 3 feet. .THURSDAY...East winds 15 to 20 knots becoming southeast. Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. .THURSDAY NIGHT...Southeast winds 15 to 20 knots becoming south 10 to 15 knots. Showers with a chance of thunderstorms. Waves 2 to 4 feet. .FRIDAY...Southwest winds 15 to 25 knots becoming west. Showers with a chance of thunderstorms during the day, then showers likely Friday night. Waves 3 to 5 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .SATURDAY...West winds to 30 knots diminishing to 10 to 15 knots. Showers likely during the day. Waves 5 to 9 feet subsiding to 2 to 4 feet. Waves occasionally around 11 feet. .SUNDAY...Southwest winds 5 to 15 knots becoming west. A chance of showers. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-100900- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1015 PM EDT Tue Apr 9 2024 .OVERNIGHT...South winds 15 to 20 knots diminishing to around 10 knots. Showers, then a chance of showers late. Waves 1 to 2 feet. .WEDNESDAY...Southwest winds 5 to 15 knots becoming west. A chance of showers through early afternoon. Waves 1 to 2 feet. .WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming east. Showers likely overnight. Waves 2 feet or less. .THURSDAY...East winds 15 to 20 knots becoming southeast. Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY NIGHT...Southeast winds 15 to 25 knots becoming south. Showers with a chance of thunderstorms. Waves 3 to 6 feet. .FRIDAY...South winds 15 to 20 knots becoming west and increasing to 30 knots. Showers with a chance of thunderstorms during the day, then showers Friday night. Waves 2 to 4 feet building to 8 to 11 feet. Waves occasionally around 14 feet. .SATURDAY...West winds to 30 knots diminishing to 15 to 25 knots. Showers during the day, then a chance of showers Saturday night. Waves 8 to 12 feet subsiding to 3 to 6 feet. Waves occasionally around 15 feet. .SUNDAY...Southwest winds 5 to 15 knots. A chance of showers. Waves 2 to 4 feet subsiding to 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-100900- MAFOR 1003/ ONTARIO WEST 1/2 12510 14600 11500 11400. A chance of showers overnight. Waves 2 feet or less. ONTARIO EAST 1/2 11416 11400 12500 12610 11600 11500. Waves 1 to 2 feet. $$