A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

According to the Severe Weather Europe website—an online resource of global weather forecasts—a mass of cold air, spurred by the polar vortex, has been forecast to move over Canada and the northern ...

Temperatures are achingly cold in the stratosphere over the Arctic, which can only mean one thing: it's perfect conditions for psychedelic skies filled with rainbow-colored clouds. Type II polar ...

A better understanding of the pathways of influence between Arctic surface conditions, the stratospheric polar vortex and mid-latitude winter weather would improve our ability to anticipate these ...

Miles above the Earth, two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex ... even though winter is still the season warming the fastest.

Captured on Jan. 12, when the sun was located just below the horizon, the unforgettable appearance of the mother-of-pearl clouds was displayed. A type of polar stratospheric cloud, mother-of-pearl ...

The polar vortex is a gigantic circular upper-air weather pattern in the Arctic that envelops the North Pole. It's a normal pattern that is stronger in the winter and tends to keep the coldest ...

However, when the stratospheric polar vortex weakens ... No conspiracy, no cloud seeding, no planned effort, just good ol’ fashioned winter, like it used to be. So, while the headlines will ...