Expires:202207032100;;612269 FZUS61 KBUF 031430 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1030 AM EDT Sun Jul 3 2022 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 30.1 inch high will build across the Lower Great Lakes today and remain in close proximity of the lake through Monday. Tuesday this surface high will exit towards the Atlantic coastline with a weak low pressure trough averaging 29.9 inches moving across the Lower Great Lakes. A 30.0 inch surface high will build across the Great Lakes Wednesday and Thursday. LOZ061-032100- MAFOR 0315/ ONTARIO WEST 1/2 11600 12500 13600 11500 11400. Waves 2 feet or less. ONTARIO EAST 1/2 11600 14610 12600 11500. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Monday morning. $$