More than 10,000 flights canceled as bitter cold blankets the U.S. As a dangerously cold weather front plunges into the U.S., tens of millions across much of the country can expect heavy snow, sleet and freezing rain.

National Weather Service defines a blizzard as a storm that contains large amounts of snow or blowing snow, with winds in excess of 35 mph and visibilities of less than 1/4 mile for an extended period of time (at least 3 hours).

The frigid temperatures expected across much of the country in the coming days may pose significant health risks for those who plan to be outdoors.

The National Weather Service has issued a winter weather advisory for the higher elevations of West Virginia for the next 24 hours. The advisory is for parts of Pocahontas, Randolph, and Webster Counties from 4 p.

Single-digit cold during the day and below-zero lows at night. What to expect across the Lansing region as temperatures drop later this week.

Gov. Greg Abbott directed the Texas Division of Emergency Management on Tuesday to prepare for the impacts of impending the winter weather . It’s expected to begin early Friday morning and last through the weekend — not just extended freezing temperatures, but a dangerous combination of sleet, freezing rain, and ice.

As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is it?

BRATTLEBORO — With frigid and snowy weather in the forecast, the community is making preparations for the most vulnerable. Fire Chief Jay Symonds said temperatures are supposed to be coldest on Saturday morning and could reach -14 degrees.