####018003648#### FZUS61 KBUF 021437 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1037 AM EDT Thu May 2 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 30.1 inch high will settle across the Lake today. Meanwhile, a 29.7 inch low develops across the northern Plains, then slowly strengthens to 29.6 inches as it moves into northern Ontario on Friday. A warm front will extend southeastward from this low towards the Lake tonight, before crossing the Lake on Friday. The same low will continue to slowly deepen to 29.5 inches as it moves further north Friday night, settling over southern Hudson Bay on Saturday. A slow moving cold front extending southeastward from the low will cross the Lake on Saturday, followed by another cold front on Sunday. A 30.2 inch ridge of high pressure will then build across the Lake for Monday into Tuesday. LOZ062-022130- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1037 AM EDT Thu May 2 2024 .THIS AFTERNOON...West winds 10 to 15 knots becoming southwest. Waves 1 to 3 feet. .TONIGHT...Southwest winds 10 knots or less becoming east. Waves 2 feet or less. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots. Waves 2 feet or less building to 3 to 5 feet. .FRIDAY NIGHT...East winds 15 to 20 knots diminishing to 5 to 15 knots. Showers likely with a chance of thunderstorms in the evening, then showers likely overnight. Waves 3 to 5 feet subsiding to 2 to 3 feet. .SATURDAY...East winds 10 to 15 knots becoming southeast. Showers likely. Waves 1 to 3 feet. .SUNDAY...South winds 10 to 15 knots becoming west. Showers likely during the day, then a chance of showers Sunday night. Waves 1 to 2 feet. .MONDAY...West winds 5 to 10 knots becoming northeast. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-022130- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1037 AM EDT Thu May 2 2024 .THIS AFTERNOON...West winds 15 to 20 knots diminishing to 10 to 15 knots. Waves 2 to 4 feet. .TONIGHT...West winds 10 knots or less becoming southeast. Waves 1 to 3 feet subsiding to 1 foot or less. .FRIDAY...East winds 10 to 15 knots becoming northeast 15 to 20 knots. Waves 1 foot or less building to 1 to 3 feet. .FRIDAY NIGHT...East winds 15 to 20 knots becoming southeast. Showers likely with a chance of thunderstorms in the evening, then showers likely overnight. Waves 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots. Showers likely. Waves 1 to 3 feet building to 3 to 5 feet. .SUNDAY...Southeast winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. Showers likely during the day, then a chance of showers Sunday night. Waves 3 to 5 feet subsiding to 1 to 3 feet. .MONDAY...West winds 5 to 10 knots becoming southwest. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-022130- MAFOR 0215/ ONTARIO WEST 1/2 12610 12500 11300 12200 11210. Waves 1 to 3 feet this afternoon. Waves 2 feet or less tonight. Waves 1 to 3 feet Friday morning. ONTARIO EAST 1/2 12610 11600 11500 11400 11300 11200 11210. Waves 2 to 4 feet this afternoon. Waves 1 to 3 feet subsiding to 1 foot or less tonight. Waves 2 feet or less Friday morning. $$ ####018000854#### FZUS61 KBUF 021437 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1037 AM EDT Thu May 2 2024 SLZ022-024-022130- Saint Lawrence River from Cape Vincent to Saint Regis 1037 AM EDT Thu May 2 2024 .THIS AFTERNOON...West winds 5 to 10 knots. Mostly cloudy. .TONIGHT...Northwest winds less than 10 knots becoming northeast. Mostly cloudy. .FRIDAY...Northeast winds 10 knots or less. Partly sunny. .FRIDAY NIGHT...Northeast winds 5 to 10 knots becoming east. A chance of showers overnight. .SATURDAY...Southeast winds 10 to 15 knots becoming south. Showers likely. .SUNDAY...South winds 15 to 20 knots becoming southwest 5 to 15 knots. Showers likely. .MONDAY...West winds 5 to 10 knots becoming southwest. Partly cloudy. $$