A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

Heavy snow is expected to blanket large portions of the Eastern U.S. while much of the country will endure dangerously cold temperatures in the coming days

A winter storm is expected to reach Massachusetts Sunday afternoon and dump up to 8 in. of snow in most of the state, according to the National Weather Service. The storm is predicted to spread across the region between 3 p.