####018001084#### FZUS61 KBUF 212329 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 729 PM EDT Sun Apr 21 2024 SLZ022-024-220315- Saint Lawrence River from Cape Vincent to Saint Regis 729 PM EDT Sun Apr 21 2024 .TONIGHT...Southwest winds 5 to 15 knots becoming northwest. A chance of rain showers late this evening. .MONDAY...Northwest winds 5 to 10 knots becoming southwest. Sunny. .MONDAY NIGHT...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 in the morning, then becoming mostly cloudy. .TUESDAY NIGHT...Southwest winds 15 to 20 knots diminishing to 5 to 15 knots. Rain. .WEDNESDAY...Northwest winds 5 to 15 knots. Snow showers and rain during the day. .THURSDAY...Northwest winds 5 to 15 knots becoming west less than 10 knots. Mainly clear. .FRIDAY...West winds 10 knots or less becoming southeast. Mainly clear, then becoming partly cloudy. $$ AR ####018003457#### FZUS61 KBUF 212331 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 731 PM EDT Sun Apr 21 2024 For waters beyond five nautical miles of shore on Lake Ontario Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...An expansive 30.4 inch high will build east across the lower Mississippi Valley tonight. The high will weaken some to 30.2 inches as it slides east by late Monday and ridges over the Lake. This high will slip to the east Tuesday, while a 29.5 inch surface low deepens across the western Great Lakes. The low will slowly weaken to 29.7 inches as it crosses the Lake late Tuesday night and Wednesday while dragging a cold front across the Lake. A 30.4 inch high will then build across the Lake Wednesday night through Thursday night. LOZ062-220330- Lake Ontario open waters from the Niagara River to Hamlin Beach- 731 PM EDT Sun Apr 21 2024 .TONIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet. .MONDAY...North winds 5 to 10 knots becoming south. Waves 1 to 3 feet. .MONDAY NIGHT...South winds 15 to 20 knots. Waves 1 to 2 feet. .TUESDAY...South winds 15 to 25 knots becoming southwest to 30 knots. A chance of showers in the afternoon. Waves 1 to 3 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west. Rain. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves occasionally around 9 feet. .WEDNESDAY...Northwest winds 15 to 25 knots becoming north and diminishing to 10 to 15 knots. Rain showers likely with a chance of snow showers during the day. Waves 3 to 5 feet. .THURSDAY...North winds 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to 2 feet. .FRIDAY...Northeast winds 5 to 15 knots becoming southeast. A chance of rain showers Friday night. Waves 1 to 2 feet. $$ LOZ063>065-220330- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 731 PM EDT Sun Apr 21 2024 .TONIGHT...West winds 15 to 20 knots becoming northwest. Waves 3 to 6 feet. .MONDAY...North winds 5 to 15 knots becoming southwest. Waves 2 to 4 feet subsiding to 1 to 3 feet. .MONDAY NIGHT...South winds 5 to 15 knots increasing to 15 to 20 knots. Waves 2 feet or less. .TUESDAY...South winds 15 to 25 knots becoming southwest. A chance of showers in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west. Rain. Waves 3 to 5 feet subsiding to 2 to 4 feet. .WEDNESDAY...Northwest winds to 30 knots becoming north 15 to 25 knots. Rain and snow showers likely during the day. Waves 3 to 6 feet. .THURSDAY...Northwest winds 5 to 15 knots becoming west. Waves 3 to 5 feet subsiding to 1 to 3 feet. .FRIDAY...Northwest winds 5 to 15 knots becoming southeast. Waves 1 to 3 feet. $$ LOZ061-220330- MAFOR 2121/ ONTARIO WEST 1/2 11520 11620 11610 11710 11800 11700 11600 11500. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet Monday. ONTARIO EAST 1/2 13620 11720 11810 11800 11700 11500. Waves 3 to 6 feet tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Monday. $$ AR