Great Lakes Forecast
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Issued by NWS
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962 FZUS61 KBUF 240220 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1020 PM EDT Thu May 23 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 over the Upper Great Lakes will build east across the Lower Great Lakes through Friday. A 29.5 inch low near Lake Superior Friday night will weaken as it slides across Southern Ontario Saturday. A 29.9 inch high will then build in Saturday night 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. LOZ062-240900- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1020 PM EDT Thu May 23 2024 .OVERNIGHT...Southwest winds 10 to 15 knots becoming west. Waves 1 to 2 feet. .FRIDAY...West winds 5 to 15 knots. Waves 2 feet or less. .FRIDAY NIGHT...North winds 5 to 15 knots becoming east. Waves 2 feet or less. .SATURDAY...East winds 10 to 15 knots. A chance of showers and thunderstorms in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming northwest. A chance of showers and thunderstorms in the evening, then a chance of showers overnight. Waves 1 to 2 feet. .SUNDAY...Northwest winds 5 to 15 knots becoming east. Showers likely with a chance of thunderstorms Sunday night. Waves 1 to 3 feet. .MONDAY...Southeast winds 10 to 15 knots becoming southwest 15 to 20 knots. Showers with thunderstorms likely during the day, then showers likely with a chance of thunderstorms Monday night. Waves 2 to 4 feet building to 3 to 5 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming west. A chance of showers. Waves 3 to 6 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-240900- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1020 PM EDT Thu May 23 2024 .OVERNIGHT...Southwest winds 10 to 15 knots. Waves 1 to 3 feet. .FRIDAY...West winds 10 to 15 knots. Waves 1 to 3 feet. .FRIDAY NIGHT...West winds 5 to 15 knots becoming east. Waves 1 to 3 feet subsiding to 1 foot or less. .SATURDAY...East winds 5 to 15 knots becoming northeast. A chance of showers and thunderstorms in the afternoon. Waves 2 feet or less. .SATURDAY NIGHT...Northeast winds 5 to 10 knots becoming west. A chance of showers and thunderstorms in the evening, then a chance of showers overnight. Waves 1 foot or less. .SUNDAY...West winds 5 to 15 knots becoming east. A chance of showers Sunday night. Waves 2 feet or less. .MONDAY...Southeast winds 15 to 20 knots becoming south. Showers with thunderstorms likely during the day, then showers likely with a chance of thunderstorms Monday night. Waves 1 to 3 feet building to 3 to 6 feet. .TUESDAY...Southwest winds 15 to 20 knots. Showers likely. Waves 3 to 6 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-240900- MAFOR 2403/ ONTARIO WEST 1/2 12510 14610 11700 11800. Waves 1 to 3 feet overnight. Waves 2 feet or less Friday and Friday evening. ONTARIO EAST 1/2 12510 14610 11610 11700. Waves 1 to 3 feet. $$ JJR