Snow thunder, also known as thunder snow, is a rare meteorological phenomenon where thunder and lightning occur during a snowstorm. Thunder snow is caused by the same atmospheric conditions that produce regular thunderstorms, but it only happens when the temperature in the clouds is cold enough for snow to form instead of rain.

Thundersnow is usually accompanied by heavy snowfall, strong winds, and reduced visibility, making it a potentially dangerous weather event. However, because it is a rare occurrence, it can also be fascinating to witness.

Thundersnow is most likely to occur in regions with a combination of warm, moist air and cold, dry air. It can occur anywhere that experiences snowstorms, including parts of North America, Europe, and Asia.

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