Thundersnow?

The “Beast from the East” arrived in North Yorkshire as a lamb. No worse than a normal winter. In The Sun today there is an article about thundersnow, apparently a rare phenonmena in the UK when thunderstorms occurs in cold winter air and rain falls as snow. This may well have been the front of a storm. Blue skies and sunshine on Roseberry, but ten minutes later it would be white out. I saw no lightning nor heard any thunder but then all sound is suppressed by the snow. View from the flank of Roseberry looking to Great Ayton Moor across Slack’s Wood.