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By Sam Collentine, Meteorologist Updated 7 days ago November 13, 2024

Lake Effect Snow, Explained

lake effect snow explained

Lake-effect snow occurs when cold air moves across relatively warm, unfrozen waters.

As the colder air passes the relatively warm and unfrozen water, warmth, and moisture are transferred into the lowest portion of the atmosphere. The air rises, clouds form, and narrow bands of snow produce rates of 2-3+ inches of snow per hour.

lake effect snow noaa

Wind direction is also a key component in determining which areas will receive lake-effect snow. Heavy snow may be falling in one location, while the sun may be shining just a mile or two away in either direction thanks to these narrow bands of intense snowfall.


Download the free OpenSnow app for the most accurate snow report information and stay tuned to our snow forecasts for the latest updates.

Sam Collentine

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About The Author

Sam Collentine

Meteorologist

Sam Collentine is the Chief Operating Officer of OpenSnow and lives in Basalt, Colorado. Before joining OpenSnow, he studied Atmospheric Science at the University of Colorado, spent time at Channel 7 News in Denver, and at the National Weather Service in Boulder.

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