This blast of cold weather is due to activity of the polar vortex.

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season.

Much of the country will be hit with extreme low temperatures over the next week as a polar vortex sends cold air down from the North Pole. Real feel temperatures throughout the northeast ...

During winter, the polar vortex at the North Pole expands, sending cold air southward ... Prepare an emergency kit for food, ...

The general meaning of the Polar Vortex is an upper-air storm that mostly keeps its center near the North Pole. The Polar Vortex ... Firstly, the Great Lakes’ surface water temperatures are ...

And what's happening right now is down lower. These type of polar vortex disruptions — stretching or moving entirely out of the North Pole — are happening more frequently, according to a study ...

During winter, the polar vortex at the North Pole expands, sending cold air southward ... Prepare an emergency kit for food, water and medicine in case of a power outage. Avoid walking on frozen ...

The polar vortex of ultra-cold air usually spins around the North Pole. People in the US, Europe, and Asia experience its intense cold when the vortex escapes and stretches south. Studies show a ...