A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

At least 46 million people were under a winter storm warning as of Thursday as the storm spreads along the Gulf Coast Friday, ...

Portions of North Dakota, Montana and Minnesota are all bracing for wind chill temperatures that could plunge to -30 degrees ...

Millions should prepare for disrupted travel and winter conditions as a fierce storm is set to bring ice, snow and freezing ...

Steady continues but the heaviest is done. However, roads remain rather slick with numerous accidents reported.

Schools in several states announced closures ahead of a winter storm that is expected to bring snow, ice and sleet.

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for St. Louis, United States throughout the world ...

A winter storm spanning 1,500 miles (from Kansas to Virginia) is about to leave behind a menacing trail of snow and ice that ...

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Topmost, United States throughout the world ...

Storm Blair left more than a foot of snow in places around Ohio. Here's where it's the deepest. See the map and the 10 ...

Areas with the most sustained warmth were around the toasty Gulf of Mexico and scattered inland across locations such as the ...