20 million under winter weather alerts as heavy snow targets West and Midwest

Frigid weather forecast as parts of the U.S. deal with freezing conditions and heavy snow

Millions gripped by subzero temperatures as Arctic blast sweeps East

Millions on the East Coast are facing new winter weather alerts and even more dangerously low temperatures. Some areas are expected to get as much as five inches of snow. NBC’s Maggie Vespa reports and TODAY’s Al Roker tracks the latest forecast.

Jim Cantore: First Major Winter Storm Slams Northeast, Heavy Snow and Power Outage Risk Increasing

In the Northeast, millions of Americans are under winter weather alerts as a winter storm brings ice and heavy snow, with up to a foot expected in northern Pennsylvania and central New York. Janai Norman has the latest.