Why does Buffalo get so much lake effect snow?

Due to the prevailing winds, areas south of Buffalo receive much more lake-effect snow than locations to the north. The lake snow machine can start as early as mid November, peaks in December, then virtually shuts down after Lake Erie freezes in mid to late January.



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The most affected areas include the Upper Peninsula of Michigan; Northern New York and Central New York; particularly the Tug Hill Region, Western New York; Northwestern Pennsylvania; Northeastern Ohio; southwestern Ontario and central Ontario; Northeastern Illinois (along the shoreline of Lake Michigan); northwestern ...

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Lake-effect snow forms when dry, freezing air picks up moisture and heat as it moves along warmer lake water. This causes some of the lake water to evaporate into the air, causing the air to be warmer and wetter.

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Anywhere! Lake effect snow can occur over any unfrozen body of water where the fetch is long enough to gather enough moisture to create snow. Lake effect snow can occur over Lake Tahoe, the Great Salt Lake, the finger lakes, and even has been reported over rivers in the Midwest!

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