The US is readying for a Siberia kind of week ahead with an Arctic Blast likely to set record-low temperatures all the way from areas east of the Rocky Mountains to the North East states.

Set within a stunning landscape of snow-capped mountains ... through the dark and frigid winter months, and they now embark on a new challenge: to raise their pups in the brief arctic summer.

A rollercoaster winter forecast is continuing in Colorado with a warm week that will soon yield to Arctic ... mountains late Friday night, bringing a quick shot of heavier snow after dark Friday ...