As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

Metro Vancouverites may face unseasonably cold weather as February continues thanks to the stratospheric polar vortex.

Meteorologists often blame unusual weather events on the movements of a jet stream, not to be confused with the similarly active Gulf Stream. Learn the key differences between the two before the ...

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.

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 planes didn’t break the sound barrier because it was the air moving them so quickly, not their engines. The report compared it to someone walking on a moving walkway at an airport – the person is ...