Great Lakes Forecast
Issued by NWS
Issued by NWS
525 FZUS61 KBUF 031512 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1012 AM EST Tue Nov 3 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 high just off the mid Atlantic coastline will continue to slowly drift further offshore through this afternoon. A 29.5 inch low is then forecast to move very slowly from the upper Mississippi Valley this afternoon to the upper Great Lakes by Wednesday, and then across Quebec Thursday and Friday. Following the passage of the low, a 29.9 inch trough will linger across the Lower Great Lakes Saturday. LOZ062-032200- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1012 AM EST Tue Nov 3 2026 .REST OF TODAY...Southwest winds 5 to 15 knots. Waves 2 feet or less. .TONIGHT...South winds 5 to 10 knots. Waves 2 feet or less. .WEDNESDAY...South winds 10 knots or less becoming east. Waves 1 foot or less. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots becoming south. Showers. Waves 1 to 3 feet. .THURSDAY...Southwest winds 15 to 20 knots diminishing to 5 to 15 knots. Showers during the day. Waves 1 to 3 feet. .FRIDAY...West winds 10 knots or less becoming north 10 to 15 knots. A chance of showers Friday night. Waves 2 feet or less. .SATURDAY...North winds 10 to 15 knots becoming northwest. A chance of showers. Waves 1 to 2 feet. $$ LOZ063>065-032200- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1012 AM EST Tue Nov 3 2026 .REST OF TODAY...South winds 10 to 15 knots. A chance of showers late this morning. Waves 2 feet or less. .TONIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet. .WEDNESDAY...South winds 5 to 15 knots becoming southeast. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots becoming south 15 to 20 knots. A chance of showers in the evening, then showers overnight. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...South winds 15 to 20 knots becoming southwest 5 to 15 knots. Showers during the day. Waves 2 to 4 feet subsiding to 1 foot or less. .FRIDAY...Southwest winds 10 knots or less becoming north 10 to 15 knots. A chance of showers Friday night. Waves 2 feet or less. .SATURDAY...North winds 10 to 15 knots becoming northwest. A chance of showers. Waves 1 to 3 feet. $$ LOZ061-032200- MAFOR 0316/ ONTARIO WEST 1/2 12510 12400 12410 12400. Waves 2 feet or less. ONTARIO EAST 1/2 16410. Waves 2 feet or less this afternoon. Waves 1 to 3 feet tonight and Wednesday morning. $$