Great Lakes Forecast
Issued by NWS
Issued by NWS
921 FZUS61 KBUF 281833 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 133 PM EST Fri Nov 28 2025 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 29.5 inch surface low will slowly track across central and eastern Quebec through this evening. Meanwhile, a 30.5 inch surface high will build south into the mid-Mississippi Valley, then to the Ohio Valley and lower Great Lakes Saturday. Another surface low will cut northeastward through the central Great Lakes Sunday, slowly deepening from 29.6 inches Sunday morning to 29.4 inches Sunday night over western Quebec. A cold front from this low will cross the Lake late Sunday night. A 30.4 inch surface high centered over the Central Plains will then build east across the Great Lakes Monday, sliding quickly to New England on Tuesday. LOZ062-282200- Lake Ontario open waters from the Niagara River to Hamlin Beach- 133 PM EST Fri Nov 28 2025 ...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING... .THIS AFTERNOON...West winds to 30 knots. Waves 8 to 12 feet. Waves occasionally around 15 feet. .TONIGHT...West winds to 30 knots becoming northwest. Waves 7 to 10 feet subsiding to 3 to 6 feet. Waves occasionally around 13 feet. .SATURDAY...Northwest winds 15 to 20 knots becoming southwest 5 to 15 knots. A chance of snow showers in the afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet. .SATURDAY NIGHT...South winds 5 to 15 knots becoming southeast 15 to 20 knots. A chance of snow showers in the evening, then snow showers overnight. Waves 1 foot or less building to 3 to 5 feet. .SUNDAY...Southwest gales to 40 knots becoming west to 35 knots. Rain and snow showers during the day, then rain showers with a chance of snow showers Sunday night. Waves 4 to 7 feet building to 7 to 11 feet. Waves occasionally around 14 feet. .MONDAY...Northwest winds 15 to 25 knots becoming south and diminishing to 5 to 15 knots. A chance of snow showers Monday night. Waves 4 to 7 feet subsiding to 1 to 2 feet. Waves occasionally around 9 feet. .TUESDAY...Southwest winds 10 to 15 knots becoming northwest. A chance of snow showers. Waves 1 to 2 feet. $$ LOZ063-282200- Lake Ontario open waters from Hamlin Beach to Sodus Bay- 133 PM EST Fri Nov 28 2025 ...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING... .THIS AFTERNOON...West gales to 35 knots. Lake effect snow showers likely with a few rumbles of thunder possible. Waves 10 to 14 feet. Waves occasionally around 18 feet. .TONIGHT...Northwest winds to 30 knots. A chance of snow showers. Waves 10 to 13 feet subsiding to 6 to 9 feet. Waves occasionally around 16 feet. .SATURDAY...Northwest winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. Snow showers likely in the morning. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming southeast and increasing to 15 to 25 knots. A chance of snow showers in the evening, then snow showers overnight. Waves 1 to 3 feet building to 3 to 6 feet. .SUNDAY...South winds to 30 knots becoming northwest and increasing to 35 knot gales. Rain and snow showers. Waves 5 to 9 feet building to 9 to 12 feet. Waves occasionally around 15 feet. .MONDAY...Northwest winds to 30 knots becoming south and diminishing to 5 to 15 knots. A chance of snow showers Monday night. Waves 7 to 10 feet subsiding to 1 to 2 feet. Waves occasionally around 13 feet. .TUESDAY...South winds 10 to 15 knots becoming northwest. Snow showers likely during the day, then a chance of snow showers Tuesday night. Waves 1 to 3 feet. $$ LOZ064-065-282200- Lake Ontario open waters from Sodus Bay to the Saint Lawrence River- 133 PM EST Fri Nov 28 2025 ...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING... .THIS AFTERNOON...West gales to 35 knots. Snow showers likely early, then a chance of snow showers late. Waves 10 to 14 feet. Waves occasionally around 18 feet. .TONIGHT...Northwest gales to 35 knots diminishing to 30 knots. A chance of snow showers early. Waves 10 to 14 feet subsiding to 6 to 10 feet. Waves occasionally around 18 feet. .SATURDAY...Northwest winds 15 to 25 knots becoming west and diminishing to 10 to 15 knots. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 9 feet. .SATURDAY NIGHT...Southwest winds 5 to 10 knots becoming southeast and increasing to 15 to 25 knots overnight. Snow showers overnight. Waves 1 to 3 feet building to 3 to 5 feet. .SUNDAY...South winds to 30 knots becoming west and increasing to 35 knot gales. Rain and snow showers. Waves 6 to 9 feet building to 9 to 13 feet. Waves occasionally around 16 feet. .MONDAY...Northwest winds to 30 knots becoming south and diminishing to 15 to 20 knots. Snow showers likely during the day, then a chance of snow showers Monday night. Waves 7 to 10 feet subsiding to 1 to 2 feet. Waves occasionally around 13 feet. .TUESDAY...South winds 15 to 20 knots becoming north 10 to 15 knots. Snow showers likely. Waves 1 to 3 feet. $$ LOZ061-282200- MAFOR 2819 AMD/ ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11650 12640 12730 11720 11620. Waves 9 to 13 feet, and occasionally around 16 feet this afternoon. Waves 8 to 11 feet subsiding to 4 to 7 feet, and occasionally around 14 feet tonight. Waves 3 to 6 feet subsiding to 2 to 4 feet Saturday morning. ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11650 11750 13740 11730 11720. A chance of lake effect snow showers this afternoon. A chance of snow showers tonight and Saturday morning. Waves 10 to 14 feet, and occasionally around 18 feet this afternoon. Waves 10 to 14 feet subsiding to 6 to 10 feet, and occasionally around 18 feet tonight. Waves 4 to 7 feet subsiding to 3 to 6 feet, and occasionally around 9 feet Saturday morning. $$