A polar vortex, a massive pocket of frigid air that ... temps south and impact up to 40 states across the U.S., including Delaware, meteorologists with AccuWeather said. The National Weather ...

A polar vortex of Arctic air extends from the top ... Ohio Valley to the mid-Atlantic and possibly reaching Maryland and Delaware could bring up to a foot of snow. It appears it will spare New ...

10th polar vortex of the season hits the U.S. Here’s what to know With record snow in New Orleans last month and drought and destructive wildfires in Southern California, this winter has not ...

It is not, however, the second coming of a polar vortex, a phrase the National Weather Service's Chicago office tweeted earlier this week to describe the upcoming sweater weather. They quickly ...

Following is a transcript of the video. The polar vortex is headed toward the US, expected to bring record-breaking cold to the Northeast, upper Midwest, and Great Lakes by this week. It's so cold ...

A pinwheeling section of the polar vortex is clearing customs at the Canadian border, heading for the northern Plains, Midwest, Mid-Atlantic and Northeast U.S. For millions, this may be the ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

And don't even ask what the wind chills were in these locations. SEE ALSO: The polar vortex is going to punch you in the face, repeatedly In Chicago, the temperature was a big round goose egg at 9 ...

This is due to what meteorologists call the “polar vortex”, a jet stream of extremely cold air that forms and swirls around the Arctic during winter months. Normally, this vortex’s speed ...

The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma in coming days and ...