####018003926#### FZUS61 KBUF 160839 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 439 AM EDT Tue Apr 16 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...An expansive 30.2 inch high will build southeast across the eastern Great Lakes region today. Meanwhile, a large storm system will move from the central and northern Plains today to the upper Mississippi Valley tonight, before shifting east into the Great Lakes Wednesday. The weakening storm system will pass to the northwest of the Lake Wednesday night and Thursday sending an attendant weak cold front across the Lake Wednesday night. The next storm system will then slowly cross northern Ontario and northern Quebec Friday and Saturday sending a secondary cold front across the Lake Friday night, while expansive high pressure moves from the Canadian Rockies to the central Plains. LOZ062-161730- Lake Ontario open waters from the Niagara River to Hamlin Beach- 439 AM EDT Tue Apr 16 2024 .TODAY...Northwest winds 10 knots or less becoming southwest. Waves 2 feet or less. .TONIGHT...Northwest winds less than 10 knots becoming east and increasing to 15 to 25 knots after midnight. Waves 2 feet or less building to 3 to 5 feet. .WEDNESDAY...East winds to 30 knots. Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Waves 5 to 8 feet building to 7 to 11 feet. Waves occasionally around 14 feet. .WEDNESDAY NIGHT...East winds to 30 knots becoming southeast and diminishing to 15 to 20 knots. Showers with a chance of thunderstorms. Waves 6 to 10 feet subsiding to 4 to 7 feet. Waves occasionally around 13 feet. .THURSDAY...South winds 5 to 15 knots becoming southeast. Occasional showers during the day, then a chance of showers Thursday night. Waves 3 to 6 feet subsiding to 1 to 2 feet. .FRIDAY...South winds 10 to 15 knots becoming west. A chance of showers. Waves 1 to 3 feet. .SATURDAY...West winds 15 to 20 knots becoming northwest 10 to 15 knots. A chance of showers during the day. Waves 2 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-161730- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 439 AM EDT Tue Apr 16 2024 .TODAY...Northwest winds 10 knots or less becoming west. Waves 1 to 3 feet subsiding to 1 foot or less. .TONIGHT...West winds 10 knots or less becoming northeast and increasing to 15 to 20 knots after midnight. Waves 1 to 3 feet. .WEDNESDAY...Northeast winds 15 to 25 knots becoming east. A chance of rain showers in the morning, then rain showers likely in the afternoon. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .WEDNESDAY NIGHT...East winds 15 to 20 knots becoming southeast. Showers with a chance of thunderstorms. Waves 3 to 6 feet. .THURSDAY...Southeast winds 15 to 25 knots. Occasional showers. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .FRIDAY...South winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. A chance of showers. Waves 1 to 3 feet. .SATURDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of rain showers. Waves 2 to 4 feet. Winds and waves higher in and near thunderstorms. $$ LOZ061-161730- MAFOR 1609/ ONTARIO WEST 1/2 12700 11600 11500 11600 11800 11110 11220. Waves 2 feet or less today. Waves 2 feet or less building to 2 to 4 feet tonight. ONTARIO EAST 1/2 12700 14600 11100 11110. Waves 1 to 3 feet subsiding to 1 foot or less today. Waves 2 feet or less tonight. $$ ####018000850#### FZUS61 KBUF 160840 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 440 AM EDT Tue Apr 16 2024 SLZ022-024-161530- Saint Lawrence River from Cape Vincent to Saint Regis 440 AM EDT Tue Apr 16 2024 .TODAY...Northwest winds 5 to 10 knots. Mostly sunny. .TONIGHT...Northwest winds 10 knots or less becoming northeast. Becoming mainly clear. .WEDNESDAY...Northeast winds 5 to 10 knots. Sunny in the morning, then becoming partly sunny. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots becoming east. A chance of showers. .THURSDAY...East winds 5 to 10 knots becoming south. Showers. .FRIDAY...South winds 10 to 15 knots becoming southwest. Showers likely. .SATURDAY...West winds 10 to 15 knots. A chance of rain showers. $$