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

The storm system’s dangerous mix of ice, heavy snow and Arctic cold has halted some transit systems and closed schools in ...

In the Northeast, forecasts have called for 12 to 18 inches, though totals will vary locally and may be lower along the immediate coast. Mr. Lamers noted the potential for a “slowly pivoting snow band ...

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