Great Lakes Forecast
Issued by NWS
Issued by NWS
467 FZUS61 KBUF 311525 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1125 AM EDT Sat Oct 31 2026 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 30.4 inch high will settle over the lower Great Lakes today. This high will drift into the Mid Atlantic states Sunday through Monday, then drift off the east coast by Tuesday. A 29.6 inch low is then forecast to move from the upper Mississippi Valley Wednesday to the upper Great Lakes Thursday. LOZ062-312100- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1125 AM EDT Sat Oct 31 2026 .THIS AFTERNOON...West winds 5 to 15 knots. Waves 1 foot or less. .TONIGHT...Southwest winds 10 knots or less. Waves 2 feet or less. .SUNDAY...South winds less than 10 knots. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 10 knots or less becoming southwest. Waves 1 foot or less. .MONDAY...Southwest winds 10 knots or less becoming south. A chance of showers Monday night. Waves 1 foot or less. .TUESDAY...South winds 5 to 10 knots. A chance of showers during the day. Waves 1 foot or less. .WEDNESDAY...South winds 10 to 15 knots. A chance of showers. Waves 1 foot or less. $$ LOZ063>065-312100- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1125 AM EDT Sat Oct 31 2026 .THIS AFTERNOON...West winds 5 to 15 knots. Waves 1 foot or less. .TONIGHT...West winds 5 to 15 knots becoming southwest less than 10 knots. Waves 2 feet or less. .SUNDAY...Southwest winds 5 to 10 knots becoming southeast. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming southwest. Waves 2 feet or less. .MONDAY...Southwest winds 5 to 10 knots becoming south. Waves 2 feet or less. .TUESDAY...South winds 5 to 15 knots increasing to 15 to 20 knots. A chance of showers during the day. Waves 1 to 3 feet. .WEDNESDAY...South winds 15 to 20 knots. A chance of showers. Waves 1 to 3 feet. $$ LOZ061-312100- MAFOR 3115/ ONTARIO WEST 1/2 11600 12610 14500 11400. Waves 2 feet or less. ONTARIO EAST 1/2 11600 12610 12600 12500 11400. Waves 2 feet or less. $$