Tag Archives: heavy snowfall

2014 North American Polar Vortex

The White House video explains polar vortex in 2 minutes

Polar Vortex Explained

A polar vortex is a large pocket of very cold air, typically the coldest air in the Northern hemisphere, which sits over the polar region during the winter season. President Obama’s Science and Technology Advisor, Dr John Holdren, explains the polar vortex in 2 minutes in a video.

2014 North American Cold Wave

Spectacular icy images as deep freeze stretches across North America

Wavy Polar Vortex on Jan 5, 2014

The 2014 North American cold wave was an extreme weather event believed to have originated from a distortion in the large cyclone near the Earth’s north pole, also known as the polar vortex, resulting in heavy snowfall. A deadly blast of arctic air shattered decades-old temperature records across the United States and Canada.