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- Lake Effect snow occurs when cold air, often originating from Canada, moves across the open waters of the Great Lakes. As the cold air passes over the unfrozen and relatively warm waters of the Great Lakes, warmth and moisture are transferred into the lowest portion of the atmosphere.
www.weather.gov/safety/winter-lake-effect-snow
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Lake-effect snow is produced during cooler atmospheric conditions when a cold air mass moves across long expanses of warmer lake water. The lower layer of air, heated by the lake water, picks up water vapor from the lake and rises through colder air. The vapor then freezes and is deposited on the leeward (downwind) shores.
Sep 11, 2024 · The Short Answer: Lake effect snow forms when cold, below-freezing air passes over a lake’s warmer waters. This causes some lake water to evaporate and warm the air. Then, the moist air moves away from the lake. After cooling, the air dumps its moisture on the ground, potentially becoming snow.
Nov 27, 2023 · Lake effect snow forms when cold air moves over warm water, according to the National Weather Service. Most common in late fall and into winter, the heat and moisture coming from...
Nov 17, 2022 · 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...
Lake effect snow is generated when cold air moves over warm lake waters such that narrow bands of snow clouds develop. The warmer lake waters heat the lower portions of air, causing it to become less dense and begin to rise. As this moisture-laden, warmer air rises, it begins to cool, leading to condensation and the formation of clouds that can ...
WHAT IS LAKE EFFECT SNOW? Lake effect snow results from the interaction between cold air passing over warmer lake water generating snow that is deposited in localized regions downwind from the lake.
