Toasty isn't exactly how you will describe the bone-numbing coming days. "Multiple waves of arctic air continue to gather over northern Canada with eyes for the central and eastern United States ...

An Arctic air mass, sometimes known as a Siberian Express, is expected to move over Michigan by Sunday and will leave Michigan residents with below-zero temperatures for days, the National Weather ...

Imagine it as a giant, icy whirlpool far above the Earth, keeping frigid Arctic air contained near the pole. But here’s where things get interesting: the polar vortex’s behavior is closely ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges southward into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to ...

A blast of Arctic air is expected to arrive in Mississippi soon as the Arctic jet stream pushes farther South than usual and allows air from as far as Siberia to move into the U.S., according to ...

THERE ARE SNOW CHANCES AS WELL. SO OVER THE NEXT TWO WEEKS, YOU KNOW, ARCTIC AIR IS GOING TO SURGE BACK AND FORTH ACROSS THE LOWER 48. YOU KNOW, SOME OF THIS AIR IS ALL THE WAY FROM THE NORTH POLE ...

Imagine it like a children's spinning top. When the top is spinning fast and steady, all that icy air stays tightly locked around the arctic, keeping the freezing temperatures up north.

A dangerously cold Colorado weekend is approaching. Arctic air with windchills as cold as 30 degrees below zero is set to blanket Denver, and it will bring some snow. We are still 72 hours away ...