Get ready to shiver. The infamous polar vortex is on its way again. By early next week, much of the nation will see below-freezing temperatures. When asked whether the cold blast will be from the ...

A map showing a Polar Vortex that could effect eastern North America in February. X/Judah Cohen “For the first half of January, that polar vortex kind of stumbled and fell foul there, moved south.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Dust off the parkas. After a mild December, the polar vortex is set to send an arctic blast into the US later this week. “That polar jet will be pushed further south, and guess what that does ...

The polar vortex refers to a blast of cold air typically confined to the North Pole. Occasionally, this frigid system shifts ...

A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the ...

When the polar vortex is strong, it locks the cold air in the arctic. (MORE: How to stay safe in the cold as frigid temperatures hit) It's when the polar vortex gets weaker, or breaks up, that it ...

The polar vortex has become synonymous with winter's most brutal cold. For days, the weather system has been sitting and spinning right along the U.S.-Canada border, with temperatures as low as 43 ...

The weather pattern that’s most at home over — you guessed it — Earth’s polar regions has started pushing south, and is bringing plenty of frigid Arctic temperatures and snow along with it.

The polar vortex is technically in the stratosphere, the middle layer of Earth's atmosphere. That area of low pressure is about 20 miles (32 kilometers) above the Earth's surface, Furtado said.