It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

WASHINGTON — We are in the middle of a blast of extreme cold weather in D.C. The polar vortex has shifted, spilling cold air ...

The jet stream is like a river of west-to-east winds in the upper atmosphere. Airplanes use it like a highway.

Much of the United States has experienced freezing temperatures early this year, and some states even got a rare look at ...

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still ...

When there are disturbances in which the Jet Stream weakens, it can become wobbly. This allows the cold air to plunge southwards. A disrupted polar vortex does not happen every year. Very much so what ...

Keim says this blast of cold air likely came from the Arctic as part of the “polar vortex.” The “polar vortex” is an area of cold air and low pressure that always exists around the Earth ...

The polar vortex, a natural atmospheric phenomenon, influences global winter weather by circulating Arctic air. Its expansion brings frigid air south, causing unusual cold spells. Increasing ...

Extreme cold warnings due to the polar vortex continue to impact Canadians this week. While January is known for bringing the worst of winter weather and taking a toll on mental health, it’s certainly ...

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