Great Lakes Forecast
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Issued by NWS
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097 FZUS61 KBUF 260220 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1020 PM EDT Sat May 25 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 29.9 inch high will build in overnight and remain over the lake through Sunday. A 29.3 inch low will then track from Lake Michigan to central Quebec Sunday night through Tuesday, with its warm front crossing the lake Monday, and its trailing cold front then following suit Monday night. This low will then weaken to 29.7 inches as it slowly drifts across northern Quebec and Atlantic Canada Tuesday and Wednesday. An expansive 30.2 inch high centered over Hudson Bay will build across the Great Lakes Wednesday night and Thursday. LOZ062-260900- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1020 PM EDT Sat May 25 2024 .OVERNIGHT...Light and variable winds. Patchy fog late. Waves 1 foot or less. .SUNDAY...Northwest winds 10 knots or less becoming east. Patchy fog early. Waves 1 foot or less. .SUNDAY NIGHT...East winds 10 to 15 knots increasing to 15 to 20 knots. Showers likely with a chance of thunderstorms overnight. Waves 1 foot or less building to 2 to 4 feet. .MONDAY...East winds 10 to 15 knots becoming south. Showers with a chance of thunderstorms. Some thunderstorms may produce gusty winds. Waves 2 to 3 feet. .MONDAY NIGHT...Southwest winds 15 to 25 knots. Showers likely with a chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Waves 2 to 4 feet building to 3 to 6 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west 10 to 15 knots. A chance of showers. Waves 3 to 6 feet. .WEDNESDAY...West winds 10 to 15 knots becoming northwest. A chance of showers. Waves 2 to 4 feet. .THURSDAY...Northwest winds 10 to 15 knots. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-260900- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1020 PM EDT Sat May 25 2024 .OVERNIGHT...Northeast winds less than 10 knots. Patchy fog late. Waves 1 foot or less. .SUNDAY...West winds 10 knots or less becoming north. Patchy fog early. Waves 1 foot or less. .SUNDAY NIGHT...Northeast winds 5 to 15 knots becoming east. A chance of showers and thunderstorms overnight. Waves 1 to 3 feet. .MONDAY...Southeast winds 10 to 15 knots becoming south 15 to 20 knots. Showers with a chance of thunderstorms. Some thunderstorms may produce gusty winds. Waves 1 to 3 feet building to 3 to 5 feet. .MONDAY NIGHT...South winds 15 to 20 knots becoming southwest. Showers with a chance of thunderstorms in the evening, then a chance of showers overnight. Some thunderstorms may produce gusty winds in the evening. Waves 2 to 4 feet building to 3 to 5 feet. .TUESDAY...Southwest winds 15 to 20 knots. A chance of showers. Waves 3 to 6 feet. .WEDNESDAY...West winds 15 to 20 knots becoming northwest 10 to 15 knots. A chance of showers. Waves 2 to 4 feet. .THURSDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-260900- MAFOR 2603/ ONTARIO WEST 1/2 11800 11600 11700 11800 12100 12210. Waves 2 feet or less. ONTARIO EAST 1/2 12800 12700 12800 11100 11200. Waves 1 foot or less. $$ JJR