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2. Explainer: What is the polar vortex and why is it so cold?

   www.aol.com/news/explainer-polar-vortex-why-cold...

   As ominous as the term polar vortex sounds, meteorologists say the phenomenon is not new, nor despite its sound does it refer to a cyclone of cold or a freakishly dangerous storm. "The term 'polar ...

3. Polar vortex could bring an unfavorable end to Rochester's winter

   www.aol.com/polar-vortex-could-bring-unfavorable...

   The polar vortex is not synonymous with a cold snap. In fact, the stratosphere is 10 to 30 miles above the earth’s surface and above the polar jet stream and other systems that create most ...

4. Here's what you need to know about the polar vortex

   www.aol.com/heres-know-polar-vortex-165732130.html

   AccuWeather forecasters break down the science behind the polar vortex and how it can influence the weather for locations thousands of miles away. While the name for this phenomenon may sound ...

5. February 2021 North American cold wave - Wikipedia

   en.wikipedia.org/wiki/February_2021_North...

   The cold was caused by a southern migration of the polar vortex, likely caused by a sudden stratospheric warming event that occurred the prior month. Temperatures fell as much as 25–50 °F (14–28 °C ) below average as far south as the Gulf Coast .

6. December 2017–January 2018 North American cold wave

   en.wikipedia.org/wiki/December_2017–January...

   Starting in late December as a result of the southward shift of the polar vortex, extremely cold conditions froze the eastern United States in the last few days of 2017 as well as into the new year. Following a brief respite in mid-January, cold temperatures swung back into the eastern U.S. shortly afterwards.

7. Polar vortex - Wikipedia

   en.wikipedia.org/wiki/Polar_vortex

   The Polar vortex is also thought to have had effects in Europe. For example, the 2013–14 United Kingdom winter floods were blamed on the Polar vortex bringing severe cold in the United States and Canada. [8] Similarly, the severe cold in the United Kingdom in the winters of 2009–10 and 2010–11 were also blamed on the Polar vortex. [9]

8. What you need to know about the polar vortex

   www.aol.com/heres-know-polar-vortex-165732890.html

   Polar vortex. It's a phrase that becomes very popular has achieved buzzword status and is often used frequently during the winter as the Northern Hemisphere endures its coldest months of the year ...

9. What is the polar vortex? In-depth look at how it can affect ...

   www.aol.com/polar-vortex-depth-look-affect...

   The polar vortex is a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole (as its name suggests). The polar vortex is a gigantic, circular area ...