The polar vortex is sending arctic blasts and chilly temperatures to most of the United States, and states from Texas to Oklahoma could see snow, sleet and ice. As of Wednesday, Jan. 21, millions of ...

Frigid Arctic air can be pushed south thanks to the polar vortex, which triggers cold snaps with temperatures plunging to lows that can lead to extreme cold warnings in Ontario, and elsewhere. Get our ...

You’ve probably heard the term “polar vortex” a lot this winter. But what is it exactly? Imagine a “whirlpool” of cold air that sits high above the Arctic. That is the polar vortex. It’s not a ...

The polar vortex collapsed, and severe temperatures are set to dominate most of the country in the coming days. Single-digit temperatures are forecast for much of the Northeast, and subzero ...

This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...

Vortex Brands Co., doing business as Vortex Green Energy, provides Phase Angle Synchronization (PAS) equipment to electric utilities in California. PAS captures the unusable electricity before it ...

A snowstorm and harsh winter weather have impacted at least 177 million people across the US, with several Northeastern and Mid-Atlantic states under watches or warnings for ice and snow. More than ...

Polar vortexes are a year-round phenomenon. But Chicago-area residents only notice them when they collapse, experts say. That’s what’s happening starting Thursday when dangerously frigid air from ...

A forecast map reveals which states can expect to see "persistent cold" in the weeks ahead, after experts said the polar vortex would unleash waves of icy air across parts of the U.S. through January.

An extreme polar vortex moving from the Arctic across North America is expected to arrive in Quebec by Friday and persist through the weekend, according to Environment Canada. EC meteorologist Peter ...

Satellite image of a bomb cyclone. It’s winter in the Northern Hemisphere. We are actually having a proper one this year. Irrespective of what is going on with our climate, it is supposed to be cold ...

As the polar vortex becomes more active, colder air will surge toward central and eastern regions of the U.S. This polar vortex activity will result in fluctuating temperatures, periodic snow and ...