Great Lakes Forecast
Issued by NWS
Issued by NWS
230 FZUS61 KBUF 041337 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 937 AM EDT Sat May 4 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 29.6 inch low will remain over Hudson Bay, with a cold front trailing this low crossing the lake Sunday night. A 30.1 inch high will then build into the upper Great Lakes Sunday night and Monday before weakening and drifting to southern Quebec and New England Tuesday. LOZ062-042115- Lake Ontario open waters from the Niagara River to Hamlin Beach- 937 AM EDT Sat May 4 2024 .THIS AFTERNOON...Northeast winds 5 to 15 knots becoming east. Patchy fog. Scattered showers late. Waves 1 to 3 feet. .TONIGHT...Southeast winds 15 to 20 knots diminishing to 10 to 15 knots. Showers likely after midnight. Periods of rain late. Waves 1 to 3 feet. .SUNDAY...Southeast winds 5 to 15 knots becoming south. Periods of rain in the morning, then a chance of showers in the afternoon. Waves 1 to 3 feet subsiding to 1 foot or less. .SUNDAY NIGHT...South winds 10 knots or less becoming northwest. A chance of showers in the evening. Waves 1 foot or less. .MONDAY...West winds 5 to 10 knots becoming north. Waves 1 foot or less. .TUESDAY...Northeast winds 5 to 10 knots becoming east. Showers likely with a chance of thunderstorms Tuesday night. Waves 1 to 2 feet. .WEDNESDAY...Southeast winds 5 to 10 knots. Showers likely with a chance of thunderstorms during the day, then a chance of showers Wednesday night. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-042115- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 937 AM EDT Sat May 4 2024 .THIS AFTERNOON...Southeast winds 10 to 15 knots increasing to 15 to 20 knots. Scattered showers. Waves 1 to 3 feet. .TONIGHT...Southeast winds 15 to 20 knots. Showers likely after midnight. Periods of rain late. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY...Southeast winds 15 to 20 knots becoming south. Periods of rain. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 1 to 3 feet. .SUNDAY NIGHT...South winds 15 to 20 knots becoming west 5 to 15 knots. A chance of showers. Waves 1 to 3 feet subsiding to 1 foot or less. .MONDAY...West winds 5 to 10 knots. Waves 1 foot or less. .TUESDAY...Northeast winds 5 to 10 knots becoming east. Showers likely Tuesday night. Waves 2 feet or less. .WEDNESDAY...Southeast winds 5 to 10 knots. Showers likely during the day, then a chance of showers Wednesday night. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-042115- MAFOR 0415/ ONTARIO WEST 1/2 11210 12220 11320 11310 13316. Waves 1 to 3 feet this afternoon and tonight. Waves 1 to 3 feet building to 2 to 4 feet Sunday morning. ONTARIO EAST 1/2 14310 11310 13326. Waves 1 to 3 feet this afternoon. Waves 1 to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet building to 3 to 5 feet Sunday morning. $$