It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here’s why it keeps happening.

The polar jet stream and the polar vortex Miles above the Earth, the two bands of fast-moving air – the polar jet stream and the stratospheric polar vortex – sometimes tango together to ...

The polar vortex is an area of low pressure and cold air that encircles both the Earth’s polar regions ... a swimming pool by creating a whirlpool to cluster dirt in the center. If a vortex is strong, ...

Advertisement Advertisement As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the ...

The polar vortex is a “constant feature” that begins to develop sometime in September and persists through sometime in spring ...

After Feb dumped a wave of unconditionally severe winter weather in the US, March is about to unleash those conditions again due to the polar vortex collapse.

The polar vortex is an area of low pressure and cold air circulating around the poles in the stratosphere — a layer in the atmosphere hovering between 7.5 and 31 miles (12 and 50 kilometers ...

The term “polar vortex” usually refers to the gigantic ... the U.S., the world remains in an overall warming pattern. Earth's average overall temperature set yet another monthly heat record ...

WASHINGTON (AP) — The polar vortex hit its peak across much of America ... meteorologist Andrew Orrison of the Weather Prediction Center. Records were broken and more may fall, he and other ...

The Colorado River, running through it for approximately six million years, has established breathtaking layers of sediment and erosion that is unlike anything else on Earth. Arizona is the Grand ...

a senior scientist at the Woodwell Climate Research Center said. The polar vortex is area of fast-moving winds well above the Earth’s surface and the jet stream that circle the Arctic during the ...