A massive storm bringing heavy snow and dangerous winds is set to strike from coast-to-coast across the US causing chaos for millions in its path.
Temperatures could drop to the lowest yet this winter in what could be the worst storm of recent years which is already starting to show signs of life on the west coast as snow and rain starts to batter the Pacific northwest.
Forecasters have warned of dangerously cold conditions with the Arctic blast expected to sweep through the Pacific northwest and then push across the northern Rocky Mountains and onto the Great Plains.
