Add Yahoo as a preferred source to see more of our stories on Google. When most people hear the term polar vortex, they think of extreme cold, dangerous wind chills and relentless winter weather.

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside. Discover how it can lead to clearer skies, fewer storms, and ideal conditions for ...

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 ...

ST. LOUIS – The Saint Louis Zoo said goodbye to one of its polar bears, Kallik, last week as he moved across the country. The polar bear’s move was announced back in September, and Kallik is now ...

A polar vortex will bring bitter cold to Toronto and surrounding areas over the next few days, but ready yourself for Sunday’s forecast — another snowstorm could be on its way. And to make matters ...

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 ...

A polar vortex is expected to bring two surges of extremely cold air to the U.S. in January. The polar vertex is a large area of low pressure and cold air that sits over Earth's poles. Middle ...

Polar has started rolling out Polar OS 5, the next major firmware update for its range of GPS sports watches, bringing a host of usability and training improvements. These include multiple alarms, ...

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.

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the Prairies and across Eastern Canada. The polar vortex is teetering, and ...

A major winter storm is impacting much of the nation east of the Rocky Mountains. The storm's intensity is caused by a combination of a stretched polar vortex, a wavy jet stream, and moisture from the ...