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Met Mailbag: Lake-Effect Snow

POSTED: 10:55 am PDT October 26, 2006
UPDATED: 12:06 pm PDT October 26, 2006

Kristen Cornett
Met Mailbag is your chance to have a Weather Plus Meteorologist answer your weather question. Each Thursday, our NBC Weather Pulse Blog will publish the answers to questions you send us. This week's question was answered by NBC Weather Plus Meteorologist Kristen Cornett.

Question: Does lake effect snow only happen over the Great Lakes?
Submitted by Karen Angell, Royal Oak, Mich.

Answer: No Karen, the Great Lakes aren't the only lakes associated with lake-effect snow.

The definition of lake-effect snow is snow that results as cold air moves over a large expanse of warmer lake waters, picking up water vapor and dropping snow on the downwind shore of the lake.

While the most common and heaviest lake effect snows take place on the downwind shores of the Great Lakes, the southern and southeastern sides of the Great Salt Lake also receive significant lake-effect snow.

Any large lake may produce lake-effect snow downwind if there is cold air moving across its warmer waters. A few other locations that experience this are the eastern shores of the Hudson Bay, Gulf of St. Lawrence and parts of Japan, Korea and Scandinavia.

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