A look back at 19 of the biggest winter storms to hit the US in the last century
A potentially historic winter storm, Winter Storm Fern, threatens over half of US states with ice, heavy snow, blizzard conditions, and dangerous cold.
Weather tracker: Record snowfall in eastern Russia leaves people stranded
Atmospheric rivers and Arctic air collided, producing record snowfall and extreme drifting in Kamchatka, while Storm Harry caused historic rainfall and flash flooding in Tunisia.