Thundersnow - as the name suggests - involve heavy snowfall rather than rain as the primary precipitation, often accompanied by thunder and lightning. The unusual weather phenomenon occurs 10 times a year worldwide A car drives through heavy snow on the North Yorkshire Moors National Park this morning (Image: Getty Images)

Forecasters have today (November 19) issued a rare 'thundersnow' warning.

Thundersnow, as the name implies, involves heavy snowfall i nstead of rain as the main form of precipitation, often accompanied by thunder and lightning. This unusual weather event occurs when the atmosphere is turbulent enough to form cumulonimbus clouds and typically happens around 10 times a year worldwide.

Areas forecast to have snow showers today and into Thursday could experi

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