AccuWeather meteorologists are warning of a prolonged period of frigid temperatures and multiple winter storms set to impact millions across the United States, from the Rockies to the East Coast. Snow,

A wall of snow will push southward across the Rockies and High Plains as the coldest air of the season so far sweeps in late this week and this weekend, AccuWeather meteorologists say. The combination of accumulating snow and plunging temperatures will create dangerous conditions.