Lake-effect snow in Buffalo: What is it? What's the cause?

The Buffalo region of the US has been hit by 'lake-effect snow' – a cold air that sweeps across the Great Lakes and sucks up moisture that falls as snow.

LAKE EFFECT: Snowpocalypse In Buffalo

Feet of snow to bury Buffalo as potentially historic lake-effect

Buffalo lake-effect snow: What it is, how it happens

First Major Widespread' Winter Weather Event Could Cause Absolute

What Is Lake Effect Snow? NOAA SciJinks – All About Weather

What is lake-effect snow?

Lake-effect snow impacts Western and Central New York

What is lake-effect snow?

What causes lake-effect snow?

Lake-effect snow - Wikipedia

Lake-Effect Snowstorm Hits Northern and Western New York - The New