####018003545#### FZUS61 KBUF 030820 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 420 AM EDT Fri May 3 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 over the lake will continue to slide east into New England this morning. Meanwhile, a 29.7 inch low will develop across the northern Plains and strengthen to 29.6 inches as it moves into northern Ontario today. A warm front extends southeastward from this low towards the lake, crossing the lake today. The same low will continue to slowly deepen to 29.5 inches as it moves further north tonight, settling over southern Hudson Bay Saturday. A slow moving cold front extending southeastward from the low will stall to the west of the lake Saturday, followed by another cold front Sunday. A 30.2 inch ridge of high pressure will then build across the lake Monday into Tuesday. LOZ062-031530- Lake Ontario open waters from the Niagara River to Hamlin Beach- 420 AM EDT Fri May 3 2024 .TODAY...East winds 10 to 15 knots. Waves 1 to 3 feet. .TONIGHT...East winds 5 to 15 knots diminishing to less than 10 knots. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Waves 1 to 3 feet. .SATURDAY...East winds 5 to 15 knots increasing to 15 to 20 knots. Showers likely with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...East winds 15 to 20 knots becoming southeast 10 to 15 knots. A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...Southeast winds 5 to 15 knots becoming northwest. Showers likely during the day, then a chance of showers Sunday night. Waves 2 feet or less. .MONDAY...West winds 5 to 10 knots becoming northeast. Waves 1 to 2 feet. .TUESDAY...East winds 10 to 15 knots. Showers likely Tuesday night. Waves 1 to 2 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-031530- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 420 AM EDT Fri May 3 2024 .TODAY...East winds 5 to 15 knots becoming northeast. Waves 1 to 3 feet. .TONIGHT...East winds 10 to 15 knots becoming southeast. A chance of showers. Showers likely with a chance of thunderstorms late. Waves 1 to 3 feet. .SATURDAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots. Showers likely with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. Waves 1 to 3 feet. .SATURDAY NIGHT...Southeast winds 15 to 20 knots. A chance of showers. Waves 2 to 4 feet. .SUNDAY...Southeast winds 15 to 20 knots becoming west 10 to 15 knots. Showers likely. Waves 3 to 5 feet subsiding to 1 to 3 feet. .MONDAY...West winds 5 to 10 knots becoming southwest. Waves 1 to 2 feet. .TUESDAY...East winds 5 to 10 knots. A chance of showers Tuesday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-031530- MAFOR 0309/ ONTARIO WEST 1/2 15210 11200 11206. A chance of thunderstorms overnight. Waves 1 to 3 feet. ONTARIO EAST 1/2 11200 12210 12110 11210 12310. A chance of showers overnight. Waves 1 to 3 feet. $$ EAJ ####018000856#### FZUS61 KBUF 030820 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 420 AM EDT Fri May 3 2024 SLZ022-024-031530- Saint Lawrence River from Cape Vincent to Saint Regis 420 AM EDT Fri May 3 2024 .TODAY...Northeast winds 5 to 10 knots. Partly sunny. .TONIGHT...Northeast winds 10 knots or less becoming southeast. A chance of showers after midnight. .SATURDAY...Southeast winds 10 knots or less. A chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 15 knots becoming south. Cloudy. .SUNDAY...South winds 5 to 15 knots becoming southwest. Showers likely. .MONDAY...Southwest winds 5 to 10 knots. Becoming mainly clear. .TUESDAY...North winds 10 knots or less becoming east. A chance of showers Tuesday night. $$ EAJ