It’s a pattern responsible for holding back the coldest temperatures on the planet. The lowest readings ever recorded in Canada and around the northern hemisphere occurred when this Arctic feature ...

It seems like you cannot mention cold weather in the fall and winter without coming across the phrase “polar vortex.” Meteorologists often refer to this weather element as a potential culprit behind ...

The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable records show a patchwork of extreme outbreaks rather than a single, weeks-long ...

The Great Lakes and Northeast are bracing for another cold shot later this month — down to single digits in places. How cold ...

Michigan is experiencing frigid temperatures and heavy snow due to a dip in the jet stream, not the polar vortex. The polar vortex is a large-scale cyclone of cold air that typically stays far north ...

In yet another sign that winter weather is either here or will be soon, the dreaded polar vortex is making news yet again. Its potential arrival in the United States over the next few weeks is cause ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

The weather forecast is looking promising for warmer weather as the calendar turns to March. In the East, a dramatic warm-up is in the forecast, and the Climate Prediction Center's outlook for March 6 ...