Expires:202404250915;;324394 FZUS61 KBUF 250215 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1015 PM EDT Wed Apr 24 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 large 30.4 inch Canadian high will settle over the upper Great Lakes tonight, then slowly work across Lake Ontario Thursday. The high will cross New England on Friday. A warm front will lift northeast across the Lake late Friday night and Saturday. A 29.6 inch low will then move from the central plains Sunday to near Wisconsin by Monday. LOZ061-250915- MAFOR 2503/ ONTARIO WEST 1/2 13110 11200 11110 11210 12300. Waves 2 feet or less. ONTARIO EAST 1/2 13110 11100 11810 11710 11610 11500. Waves 1 to 3 feet overnight and Thursday. Waves 2 feet or less Thursday evening. $$ Hitchcock