####018003340#### FZUS61 KBUF 221449 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1049 AM 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...An expansive 30.4 inch high will weaken to 30.2 inches as it moves east to the Mid Atlantic region this afternoon. This high will move to then slip off the East Coast tonight 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. LOZ062-222130- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1049 AM EDT Mon Apr 22 2024 .THIS AFTERNOON...Southeast winds 10 to 15 knots becoming southwest. Waves 1 foot or less. .TONIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 25 knots becoming southwest. A chance of showers in the afternoon. Waves 1 to 3 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots. Rain. Waves 3 to 6 feet. .WEDNESDAY...North winds 15 to 20 knots becoming northeast 5 to 15 knots. A chance of rain and snow showers during the day. Waves 3 to 6 feet subsiding to 2 to 3 feet. .THURSDAY...East winds 5 to 10 knots becoming southeast. Waves 1 to 2 feet. .FRIDAY...East winds 10 to 15 knots becoming southeast. A chance of rain showers Friday night. Waves 1 to 2 feet. $$ LOZ063>065-222130- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1049 AM EDT Mon Apr 22 2024 .THIS AFTERNOON...East winds 10 to 15 knots becoming southwest. Waves 2 feet or less. .TONIGHT...South winds 10 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet. .TUESDAY...South winds 15 to 20 knots becoming southwest. A chance of showers in the afternoon. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. .TUESDAY NIGHT...Southwest winds 10 to 15 knots. Rain. Waves 2 to 4 feet. .WEDNESDAY...Northwest winds 15 to 25 knots becoming northeast and diminishing to 10 to 15 knots. Occasional rain showers with a chance of snow showers during the day. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves occasionally around 9 feet. .THURSDAY...Northeast winds 5 to 10 knots becoming southeast. Waves 1 to 3 feet. .FRIDAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots. Waves 2 feet or less. $$ LOZ061-222130- MAFOR 2215/ ONTARIO WEST 1/2 11510 11500 14410 12420. Waves 1 foot or less this afternoon. Waves 1 to 3 feet tonight. Waves 1 to 3 feet building to 2 to 4 feet Tuesday morning. ONTARIO EAST 1/2 11600 11500 12400 12410 12420. Waves 2 feet or less this afternoon. Waves 1 to 3 feet tonight. Waves 2 to 4 feet Tuesday morning. $$ ####018001088#### FZUS61 KBUF 221449 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1049 AM EDT Mon Apr 22 2024 SLZ022-024-222130- Saint Lawrence River from Cape Vincent to Saint Regis 1049 AM EDT Mon Apr 22 2024 .THIS AFTERNOON...South winds 5 to 10 knots becoming southwest. Sunny. .TONIGHT...Southwest winds 5 to 10 knots becoming south. Mainly clear through the early overnight, then becoming partly cloudy. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of rain showers in the afternoon. .TUESDAY NIGHT...Southwest winds 10 to 15 knots becoming west. Showers likely in the evening, then rain overnight. .WEDNESDAY...Northwest winds 15 to 20 knots becoming north and diminishing to less than 10 knots. Snow and rain showers likely during the day. .THURSDAY...Northwest winds 10 knots or less becoming south. Mainly clear. .FRIDAY...South winds 10 knots or less becoming southeast. Mainly clear, then becoming partly cloudy. $$