Great Lakes Forecast
Issued by NWS
Issued by NWS
101 FZUS61 KBUF 230802 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 402 AM EDT Fri Oct 23 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 ridge averaging 30.5 inches affects the lake through Sunday night as the embedded high pressure center drifts generally southward from central Quebec toward the Mid-Atlantic states. The ridge then exits southeastward as a weak cold front sweeps southeastward across the lake on Monday. Behind the front, another ridge averaging 30.5 inches should build from central Canada and vicinity through this Tuesday. LOZ062-231500- Lake Ontario open waters from the Niagara River to Hamlin Beach- 402 AM EDT Fri Oct 23 2026 .TODAY...East winds 15 to 20 knots diminishing to 10 to 15 knots. Waves 2 to 4 feet. .TONIGHT...East winds 5 to 15 knots becoming southeast. Waves 1 to 3 feet. .SATURDAY...Southeast winds 10 knots or less becoming east. Waves 1 foot or less. .SATURDAY NIGHT...East winds 10 knots or less becoming south. Waves 1 foot or less. .SUNDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less. .MONDAY...West winds 5 to 15 knots becoming northeast. Waves 2 feet or less building to 2 to 3 feet. .TUESDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to 3 feet. $$ LOZ063>065-231500- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 402 AM EDT Fri Oct 23 2026 .TODAY...Northeast winds 15 to 20 knots diminishing to 5 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .TONIGHT...Northeast winds 10 knots or less becoming southeast. Waves 2 feet or less. .SATURDAY...South winds less than 10 knots becoming east. Waves 1 foot or less. .SATURDAY NIGHT...East winds 10 knots or less becoming south. Waves 1 foot or less. .SUNDAY...South winds 5 to 15 knots becoming southwest. Waves 2 feet or less. .MONDAY...West winds 5 to 10 knots becoming northeast and increasing to 15 to 20 knots. Waves 2 feet or less building to 2 to 4 feet. .TUESDAY...Northeast winds 15 to 20 knots becoming east 5 to 15 knots. Waves 2 to 4 feet subsiding to 1 foot or less. $$ LOZ061-231500- MAFOR 2309/ ONTARIO WEST 1/2 14210 11210 12200 11300. Waves 2 to 4 feet today. Waves 1 to 3 feet tonight. ONTARIO EAST 1/2 11120 12110 13100 11200 11300. Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 2 feet or less tonight. $$