FZUS61 KBUF 211453 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 953 AM EST Thu Nov 21 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 29.3 inch low over northern Lake Michigan today will weaken and give way to a secondary coastal low off the Jersey Shore by this evening. This low will deepen to 29.2 inches as it pivots back westward across southeast New York tonight, then eastern Pennsylvania Friday before moving back east and off the New England coast Saturday. Said low will track to the Canadian Maritimes Sunday, while a narrow 30.1 inch ridge builds into the eastern Great Lakes. A 29.8 inch low over the central Great Lakes Monday will track northeast towards southeastern Quebec by Tuesday. LOZ062-212215- Lake Ontario open waters from the Niagara River to Hamlin Beach- 953 AM EST Thu Nov 21 2024 .REST OF TODAY...Southwest winds 5 to 10 knots becoming northwest. A chance of showers. Waves 1 to 3 feet subsiding to 1 foot or less. .TONIGHT...Northwest winds 10 to 15 knots becoming north and increasing to 15 to 25 knots. Rain. Waves 1 foot or less building to 3 to 5 feet. .FRIDAY...North winds 20 to 25 knots becoming northeast. Rain. Waves 3 to 6 feet building to 5 to 8 feet. Waves occasionally around 10 feet. .FRIDAY NIGHT...Northeast winds 15 to 20 knots becoming north 10 to 15 knots. A chance of showers in the evening, then showers likely overnight. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .SATURDAY...Northwest winds 10 to 15 knots becoming west and increasing to 15 to 25 knots. Showers likely. Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally around 10 feet. .SUNDAY...West winds 15 to 20 knots becoming southwest 10 to 15 knots. A chance of showers during the day. Waves 4 to 7 feet subsiding to 1 to 2 feet. Waves occasionally around 9 feet. .MONDAY...Southeast winds 10 to 15 knots becoming west and increasing to 15 to 25 knots. Showers likely. Waves 1 to 3 feet building to 3 to 6 feet. $$ LOZ063>065-212215- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 953 AM EST Thu Nov 21 2024 .REST OF TODAY...South winds 5 to 15 knots becoming north. Showers likely late this morning, then rain this afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...North winds 10 to 15 knots becoming northeast and increasing to 30 knots after midnight. Rain. Waves 1 foot or less building to 3 to 6 feet. .FRIDAY...Northeast winds to 30 knots diminishing to 15 to 25 knots. Rain in the morning, then showers likely in the afternoon. Waves 5 to 9 feet building to 6 to 10 feet. Waves occasionally around 13 feet. .FRIDAY NIGHT...Northeast winds 15 to 20 knots becoming north 10 to 15 knots. A chance of showers. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .SATURDAY...Northwest winds 10 to 15 knots increasing to 30 knots. Showers. Waves 1 to 3 feet building to 6 to 9 feet. Waves occasionally around 11 feet. .SUNDAY...Northwest winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. A chance of showers. Waves 5 to 8 feet subsiding to 2 to 4 feet. Waves occasionally around 10 feet. .MONDAY...South winds 10 to 15 knots becoming southwest and increasing to 15 to 25 knots. A chance of showers during the day, then showers likely Monday night. Waves 1 to 3 feet building to 3 to 5 feet. $$ LOZ061-212215- MAFOR 2116/ ONTARIO WEST 1/2 11500 11700 11710 11716 11826 12836 11846. A chance of showers this afternoon. Waves 2 feet or less this afternoon. Waves 1 foot or less building to 3 to 5 feet tonight. Waves 5 to 8 feet, and occasionally around 10 feet Friday morning. ONTARIO EAST 1/2 11600 11706 11816 11826 11836 11136 12146. A chance of showers late this morning. Waves 1 to 3 feet this afternoon. Waves 1 foot or less building to 3 to 6 feet tonight. Waves 5 to 9 feet, and occasionally around 11 feet Friday morning. $$ EAJ