Don't put away that winter jacket just yet. The polar vortex is expected to be impacted by a sudden warmup of the stratosphere, which will bring freezing temperatures to the Northeast this weekend and ...

El Niño's record-breaking force could enter a chaotic dance with another wintertime powerhouse: The polar vortex.

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S. When Arctic air surges into the U.S., the polar vortex ...

Add Yahoo as a preferred source to see more of our stories on Google. In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its ...

The polar vortex is so back, and in some parts of the country, the weather system will bring with it up to a foot of snow. If “polar vortex” is giving you déjà vu, that’s because we’ve heard it before ...

During certain winter cold snaps, weather stations in the American Midwest and Northeast have recorded temperatures colder ...

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...

Forecast models show Antarctica's polar vortex strengthening as winter continues. Here's why meteorologists are watching and what it means for Ohio.

Severe temperatures are expected to dominate most of the country in the coming days, with single-digit temperatures forecast for parts of the Northeast. Overall, temperatures will begin to warm in the ...

Global climate models capture many of the processes that shape Earth's weather and climate. Based on physics, chemistry, fluid motion and observed data, hundreds of these models agree that more carbon ...