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

See these maps for a quick look at the snow, ice and freezing rain forecast through Jan. 26 across the U.S.

Track everything from current conditions, forecast timing and potential impacts from the winter storm here.

Forecasters say over half the U.S. population could be affected by snow, ice or bitter cold as a winter storm sweeps across ...