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

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

Add Yahoo as a preferred source to see more of our stories on Google. Columbus is in for a cold, windy day on Wednesday, Dec. 10, with snow possible later in the day. Expect a high of 42 degrees that ...