When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more likely.

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the ...

Polar Vortex Set to Envelop Much of US in Freezing Temperatures By Hannah Lang and Brendan O'Brien (Reuters) - A blast of Arctic air is set to cover much of the United States with temperatures ...

SALT LAKE CITY — Cities across the U.S. are bracing for cold temperatures as a polar vortex arrives, bringing temperatures down to much below normal for mid-to-late January. Parts of Utah are on ...

In addition to the white stuff, Waterloo Region is about to get hit with the worst polar vortex seen in Ontario in over a decade, with the Weather Network predicting parts of southern Ontario will ...

ORLANDO, Fla. – Central Florida is experiencing some delightful weather thanks to a ridge of high pressure. This weather ...

The coldest temperatures of the year are expected for much of Ontario on Monday and Tuesday. Frigid Arctic air is being pushed south thanks to the polar vortex. The Weather Network has called this ...

MADISON, Wis. -- A polar vortex is on its way, where many Madisonians will feel negative 30-degree temperatures as early as Sunday. “We know what's going to happen. So, you know, you want to ...

Europe may be in for another cold blast like the one that surprised forecasters and sent gas prices soaring last week, with the potential weakening of winds that keep frigid air confined to the Arctic ...

Read full article: 1 shot, suspect dead after SWAT ... “Right now, because of the polar vortex, we’ve opened up our gymnasium to hold an emergency shelter here so that anyone is on the streets ...

The coldest temperatures of the year are expected for much of Ontario on Monday and Tuesday. Frigid Arctic air is being pushed south thanks to the polar vortex. A.M. Headlines Newsletter ...