Threat level: The Arctic air is likely to send temperatures plunging to at least 30 degrees below average for mid-February ...

Storm warnings are in effect in the Plains, the Midwest, the Great Lakes, and the mid-Atlantic through tonight.

As we prepare for a very busy weather week, what comes next? We told you earlier in the month the polar vortex was going to ...

Another round of snow, sleet, and freezing rain is heading to Central New York, as is bitterly cold arctic air.

The upcoming midweek storm is one of several systems that promises to bring precipitation and eventually the month's coldest ...

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

Brrr! 🌬️ Discover why Wisconsin is experiencing more polar vortex events and what that means for the climate. Are we ready ...

The weekend outlook covers the Friday rain (ice for NWNJ), the cooler finish to the weekend, and some NNJ flurry chances ...

It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame. Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.

The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, Mid-Atlantic and deep into the South. And it looks as if we may get more arctic blasts in the coming ...