As millions of Americans hunker down for the winter storm, 19 states and Washington, D.C., have declared states of emergency.

Roughly a million power outages were reported on Jan. 25 as a massive winter storm raged across the country, bringing "catastrophic" ice accumulation that downed power lines and created treacherous road conditions.

Officials urge Americans to stay indoors as a historic winter storm creates "catastrophic" ice conditions and triggers the largest weather alert ever.

Sledding in the street in Texas. Icicles all over the place. Here are some of the best photos and videos from the winter storm.

A monstrous winter storm is hitting the tri-state area on Sunday — expected to dump more than a foot of snow in some areas. Travel is becoming a nightmare. A weather event like this makes for perilous driving and travel conditions across the region.

About a million customers were without power Sunday as a massive winter storm coated tree branches and power lines with heavy ice across the South.

Reporters from across the NPR Network are covering the storm in each state — the impact and how officials are responding.

The National Weather Service in State College has issued Winter Storm Warnings for all of central Pennsylvania through 1 p.m. Monday. It covers the following counties: Somerset, B

Snow, sleet and ice covered Memphis and much of Tennessee this weekend as a impactful winter storm entered the area.

A winter storm brought heavy, powdery snow to Maryland on Sunday morning. By mid- to late morning, conditions changed to sleet and freezing rain.