A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

What is the polar vortex? Mississippi weekend weather forecast calls for winter storm with lows in the teens, paired with ...

A forecast map reveals which states can expect to see “persistent cold” in the weeks ahead, after experts said the polar ...

A significant portion of the U.S. is experiencing below-average temperatures due to a disrupted polar vortex, affecting over ...

A major polar vortex is about to hit the US and could bring weeks of frigid temperatures for millions, with even a chance of ...

A fierce Arctic blast of bitterly cold air is poised to overtake much of the central, eastern and southern U.S. over the next ...

Here’s the wind chill chart. Notice the four shadings, indicating how long it will take for frostbite. When we get to wind ...

The polar vortex is bringing bitter cold and snow to NJ this weekend. Here's the weather forecast, from timing to how much ...

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the ...

"Bitter cold could linger through the end of the month," the Weather Prediction Center said in an update on Monday.