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

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 ...

More than 3,000 flights were canceled or delayed across the United States on Sunday after a winter storm packing ice and snow slammed the Midwest and Great Lakes regions during the busy travel period ...

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 ...

Winter starts Sunday. Mississippi saw multiple waves of Arctic air from the polar vortex earlier in December. But forecasts show we're getting a break from freezing temperatures and wintry weather ...