* Lake Effect Snow: The Tug Hill Plateau lies directly in the path of cold, dry air flowing off of Lake Ontario. This air picks up moisture from the lake and rises as it encounters the higher elevation of the plateau. As the air rises, it cools, causing the moisture to condense and fall as snow.
* Topography: The plateau's flat, elevated terrain with its rolling hills provides a perfect environment for lake-effect snow to develop. The air is forced to rise as it meets the plateau, enhancing the cooling process and leading to heavier snowfall.
* Wind Patterns: The prevailing westerly winds carry the moisture-laden air from Lake Ontario directly towards the plateau.
* Lake Ontario's Size: The vastness of Lake Ontario provides a significant source of moisture, contributing to the heavy snowfall. The lake remains unfrozen for a considerable part of the winter, allowing the process of lake-effect snow to continue.
In summary: The combination of the Tug Hill Plateau's location, topography, wind patterns, and Lake Ontario's size creates a unique set of conditions that result in the region receiving an exceptionally high amount of snowfall.
