Bright and dazzling, waves radiating rainbow colors sweep across the northern skies of Sweden, displaying beautiful hues. Known as "nacreous clouds" or "mother-of-pearl clouds," these clouds are a ...

Several factors can disrupt the stability of the polar vortex. Atmospheric waves, similar to ocean waves with vast dips and ridges, can propagate upward from the troposphere into the stratosphere.

There's something about polar bears that's always puzzled the people who study them. How do they seem to repel snow? The animals spend their lives in cold climates, sometimes rolling around in ...

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 ...

This creates vibrant colors in the night sky, visible in polar regions like Norway ... and can sometimes appear in the lower stratosphere as nacreous clouds. Image credits: NPGallery To avoid ...

The layer of the atmosphere that lies between 6 and 31 miles above the surface is known as the stratosphere. The polar vortex is within the stratosphere. Because of the lack of sunlight ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not ...

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.

A polar vortex will plunge Waterloo region ... Tuesday: Mix of sun and cloud. High of –15 C, wind chill near –28 C. Wednesday: Cloudy with a chance of flurries. High –13 C.

A polar vortex will plunge the GTA into a deep freeze until Wednesday, Environment Canada says. "Be prepared for very cold conditions. Temperatures may be colder than those that have been seen the ...

This Arctic blast is thanks to a polar vortex. "We live on this big blue marble called Earth and at the top and the bottom you have spinning air — a vortex — and that air at the top and bottom ...