####018003786#### FZUS61 KBUF 230149 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 949 PM EDT Mon Apr 22 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 30.2 inch high will slip off the East Coast overnight and into Tuesday, while a 29.5 inch surface low deepens across the western Great Lakes. The low will slowly weaken to 29.7 inches as crosses the lake late Tuesday night and Wednesday while dragging a cold front across the lake. A 30.4 inch high will then build across the Lake Wednesday night through Thursday night, before strengthening to 30.6 inches as it slides to the New England coast on Friday. A 29.3 inch low across the plains states on Friday will track across Lake Superior on Saturday. LOZ062-230915- Lake Ontario open waters from the Niagara River to Hamlin Beach- 949 PM EDT Mon Apr 22 2024 .OVERNIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 25 knots becoming southwest. A chance of showers late. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. Rain. Waves 3 to 6 feet subsiding to 2 to 4 feet. .WEDNESDAY...Northwest winds 15 to 20 knots diminishing to 5 to 10 knots. Rain showers likely in the morning. Waves 2 to 3 feet building to 3 to 5 feet, then subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots becoming northeast. Waves 1 to 2 feet. .THURSDAY...East winds 5 to 10 knots. Waves 1 foot or less. .FRIDAY...East winds 10 to 15 knots becoming southeast. A chance of showers Friday night. Waves 1 to 3 feet building to 2 to 4 feet. .SATURDAY...Southeast winds 10 to 15 knots becoming southwest. Showers likely. Waves 1 to 3 feet. $$ LOZ063>065-230915- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 949 PM EDT Mon Apr 22 2024 .OVERNIGHT...South winds 5 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 20 knots becoming southwest. A chance of showers late. Waves 3 to 5 feet subsiding to 2 to 4 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Occasional showers in the evening, then rain overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...Northwest winds 15 to 25 knots becoming north. Occasional rain showers with a chance of snow showers in the morning, then a chance of rain and snow showers in the afternoon. Waves 1 to 3 feet building to 4 to 7 feet, then subsiding to 3 to 5 feet. Waves occasionally around 9 feet. .WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming northeast 10 to 15 knots. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 10 knots becoming southeast. Waves 2 feet or less. .FRIDAY...Southeast winds 5 to 15 knots increasing to 15 to 20 knots. A chance of rain showers Friday night. Waves 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots becoming south. Showers likely. Waves 2 to 4 feet. $$ LOZ061-230915- MAFOR 2303/ ONTARIO WEST 1/2 13410 11420 12530 11536 11526. Waves 1 to 3 feet overnight. Waves 2 to 4 feet building to 4 to 7 feet, and occasionally around 9 feet Tuesday. Waves 3 to 6 feet Tuesday evening. ONTARIO EAST 1/2 11410 14420 12510 11516. Waves 1 to 3 feet overnight. Waves 3 to 5 feet subsiding to 2 to 4 feet Tuesday. Waves 1 to 3 feet Tuesday evening. $$ ####018001185#### FZUS61 KBUF 230150 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 950 PM EDT Mon Apr 22 2024 SLZ022-024-230915- Saint Lawrence River from Cape Vincent to Saint Regis 950 PM EDT Mon Apr 22 2024 .OVERNIGHT...Southwest winds 5 to 15 knots becoming south. Mainly clear. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. Mostly sunny early, then becoming mostly cloudy. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west 5 to 15 knots. Occasional showers in the evening, then rain overnight. .WEDNESDAY...Northwest winds 10 to 15 knots becoming north. Occasional rain showers with snow showers likely in the morning, then a chance of rain and snow showers in the afternoon. .WEDNESDAY NIGHT...North winds 10 knots or less. Clear. .THURSDAY...North winds 10 knots or less becoming south. Mainly clear. .FRIDAY...South winds 10 knots or less becoming southeast. Clear, then becoming partly cloudy. .SATURDAY...South winds 10 to 15 knots. A chance of showers during the day, then showers likely Saturday night. $$