Dozens of schools were closed on Friday after Storm Goretti brought thundersnow and travel disruption to Wales. An amber weather warning for heavy snow was in force for the south Wales valleys, mid and north Wales, until 09:00 GMT on Friday.

A storm that pummeled dozens of Midwest states with snow during the weekend also brought another weather phenomena, at least to Missouri: Thunder and lightning. The phenomenon, known as thundersnow, occurs when a thunderstorm produces snow instead of rain.

Thundersnow that happens when thunder and lightning occur during snowfall. The rare weather event can be helpful for predicting a larger storm. Less than one percent of all snowstorms are associated with thunder, according to ABC News. They require just ...

There are areas of unstable snow in several locations near the top of Yr Wyddfa, said the Llanberis Mountain Rescue Team.

(WLUK) -- Thundersnow, a rare and powerful winter weather event, could make an appearance in Northeast Wisconsin as Winter Storm Cooper approaches. This phenomenon forms similarly to a regular thunderstorm but occurs during winter, requiring four key ...

Forecasters say Winter Storm Blair, blanketing much of Kentucky Sunday afternoon with thick snow ahead of sleet and ice, could also bring thundersnow. Thundersnow is not a common occurrence in winter storms. As its name would suggest, thundersnow occurs ...

Parts of the country are still reeling from Storm Goretti, which caused school closures, left homes without power and caused widespread travel disruption. A yellow warning for ice covers large parts of Wales until midday on Saturday as partially thawed snow refreezes, accompanied by wintry showers and freezing fog.