Great Lakes Forecast
Issued by NWS
Issued by NWS
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133 FZUS61 KBUF 242003 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 402 PM EDT Fri Jul 24 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 30.2 inch high over the Lake this morning will drift east of the Lake today, and linger over New England through Saturday before weakening and drifting off the east coast Sunday. A 29.5 inch area of low pressure will develop over the western Great Lakes Sunday night and move north of the Lake Monday and Tuesday, with a cold front slowly easing across the Lake Tuesday. LOZ062-250300- Lake Ontario open waters from the Niagara River to Hamlin Beach- 402 PM EDT Fri Jul 24 2026 .TONIGHT...East winds 10 knots or less becoming southeast. Waves 1 foot or less. .SATURDAY...South winds 10 knots or less becoming east. Waves 1 foot or less. .SATURDAY NIGHT...East winds less than 10 knots becoming southwest. Waves 1 foot or less. .SUNDAY...Southwest winds 10 knots or less. A chance of showers and thunderstorms in the afternoon. Waves 1 foot or less. .SUNDAY NIGHT...Southwest winds 10 knots or less. A chance of showers. Waves 1 foot or less. .MONDAY...Southwest winds 5 to 10 knots. A chance of showers and thunderstorms during the day, then showers with a chance of thunderstorms Monday night. Waves 1 foot or less. .TUESDAY...West winds 5 to 15 knots becoming north. Showers with a chance of thunderstorms. Waves 1 to 2 feet. .WEDNESDAY...North winds 5 to 15 knots. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-250300- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 402 PM EDT Fri Jul 24 2026 .TONIGHT...Northeast winds 5 to 15 knots becoming south. Waves 2 feet or less. .SATURDAY...South winds 5 to 15 knots becoming east. Waves 2 feet or less. .SATURDAY NIGHT...East winds 10 knots or less becoming south. Waves 1 foot or less. .SUNDAY...South winds 5 to 10 knots. Waves 1 foot or less. .SUNDAY NIGHT...South winds 10 knots or less becoming southwest. A chance of showers. Waves 1 foot or less. .MONDAY...Southwest winds 5 to 10 knots becoming south. A chance of showers and thunderstorms during the day, then showers with a chance of thunderstorms Monday night. Waves 1 foot or less. .TUESDAY...Southwest winds 5 to 15 knots becoming north. Showers with a chance of thunderstorms. Waves 2 feet or less. .WEDNESDAY...North winds 5 to 15 knots. A chance of showers. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-250300- MAFOR 2421/ ONTARIO WEST 1/2 11100 12200 11300 12400 11300 11200. Waves 1 foot or less. ONTARIO EAST 1/2 11100 12200 11300 12410 11300 11200. Waves 2 feet or less. $$