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.

Add Yahoo as a preferred source to see more of our stories on Google. More than 3,000 flights were canceled or delayed across the United States on Sunday after a winter storm packing ice and snow ...

Winter in the United States has always been unpredictable, but in recent years, shifting climate patterns have made seasonal forecasts a perennial topic of national interest — especially as extreme ...