Warmth is weakening the polar vortex. Here’s what it means for extreme cold.
Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...
Colorado Public Radio10d
With a final sub-zero blast, polar vortex on its way out of Colorado
Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.
2 places in Colorado got below -40
Here are the lowest temperatures across Colorado on Tuesday morning, according to the National Weather Service.
Yahoo13d
Colorado will be bitter cold but a polar vortex it is not
Colorado will see its coldest temperatures of the winter as a mass of cold air descends on the state from the Artic. But despite the bitter cold, this weather event is not a polar vortex.
Powerful polar vortex in the stratosphere brings frigid temperatures to US
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
CBS News10d
What is the polar vortex and how does it impact weather?
It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...
New York Post10d
Polar vortex leaves more than 30 states on alert for dangerously cold weather
A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not ...