It is closely related to the polar jet stream, a strong wind current that ... check out the beautifully simple diagram by the National Oceanic and Atmospheric Administration (NOAA) below.

But here’s where things get interesting: the polar vortex’s behavior is closely tied to the jet stream, a fast-moving river of air that flows high above the Earth. The jet stream acts like a ...

The daily weather we experience is largely shaped by atmospheric conditions nearly 30,000 feet above us, where a key factor is the weather phenomenon known as the jet stream. Think of a jet stream ...

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward ...

Well, the polar jet stream keeps the cold polar air trapped in the upper latitudes and upper atmosphere. Depending on the strength of the polar jet stream determines how the Polar Vortex moves.