As another winter storm hits South Carolina and other regions, here's what to know about deciphering forecaster terms.

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex will engulf much of North America as we head into next week, with temperatures dipping down into the -20s and ...

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 ...

Much of the country is in for widespread and dangerously cold temperatures beginning this weekend — and lasting through much of next week — as a lobe of the polar vortex over northern Greenland is ...

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The National Weather Service has issued a Cold Weather Advisory for all of Southeast Michigan through noon Wednesday. Wind chills as low as -25 degrees will be possible. (WDIV) Bitterly cold air is ...

The polar vortex will engulf much of North America as we head into next week, with temperatures dipping down into the -20s and -30s in some Canadian provinces. Even states like the Carolinas, Georgia, ...

Bitter cold temperatures are expected to continue throughout the week in Chicago, with wind chills plunging to minus 20, the National Weather Service said. A cold weather advisory is in effect until ...