Such events distort the polar vortex, which causes Arctic air to descend into the U.S. and causes temperatures to plummet.

Monday, Dec. 1, marks the first day of meteorological winter. And this month could bring warmer-than-average temperatures to ...

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is ...

The Old Farmer’s Almanac expects December in the Northeast is to be cold and snowy. From December 1–17, there will be snowy periods and temperatures will get very cold. From December 18–21, it should ...