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  • Polar vortex - Wikipedia, the free encyclopedia

    https://en.wikipedia.org/wiki/Polar_vortex - 10 hours ago

    A polar vortex is a upper level low pressure zone, the lies near the Earth's pole.
    There are two polar vortices in the Earth's atmosphere, which overlie the North, ...

  • What is a Polar Vortex? - AccuWeather, Inc.

    http://www.accuweather.com/en/weather-news/what-is-a-polar-vortex/2179...

    Nov 12, 2014 ... "The polar vortex is not a recently discovered phenomenon; in fact, it has been
    talked about in the meteorological world for decades," ...

  • Polar vortex to send arctic air into central, eastern US through ...

    http://www.accuweather.com/en/weather-news/polar-vortex-to-send-arctic...

    Jan 12, 2016 ... A piece of the polar vortex will help spread arctic air across the central and
    eastern United States through the midweek, bringing the coldest air ...

  • What Is This Polar Vortex That Is Freezing the U.S.? - Scientific ...

    http://blogs.scientificamerican.com/observations/what-is-this-polar-vo...

    Feb 14, 2016 ... As each hour passes, more and more television and radio reporters are
    attributing the insane cold to a “polar vortex” up in northern Canada.

  • NOAA's SciJinks :: What is a polar vortex?

    http://scijinks.jpl.nasa.gov/polar-vortex/

    When temperatures plunged into the sub-zero range for much of the country in
    early 2014, the term "polar vortex" became a household expression. Sure ...

  • What Role Does the Polar Vortex Have in the Valentine's Day ...

    https://weather.com/science/weather-explainers/news/polar-vortex-cold-...

    Feb 12, 2016 ... With a Valentine's Day weekend cold outbreak, you're probably hearing the term
    "polar vortex" pop up again. In January 2014, you were ...

  • NWS Polar Vortex Information

    http://www.nws.noaa.gov/os/winter/polar_vortex.shtml

    What is the Polar Vortex? The polar vortex is a large area of low pressure and
    cold air surrounding both of the Earth's poles. It ALWAYS exists near the poles,
    but ...

  • The Polar Vortex Is Visiting NYC This Weekend -- NYMag

    http://nymag.com/daily/intelligencer/2016/03/polar-vortex-is-visiting-...

    Apr 1, 2016 ... The Polar Vortex Is Visiting New York This Weekend — Get Ready for Cold
    Temperatures, Strong Winds, and Maybe Some Snow. By Jen Kirby.

  • Polar Vortex to Bring 'Coldest Air for More Than a Decade' to ...

    http://www.nbcnews.com/news/weather/polar-vortex-bring-coldest-air-mor...

    Feb 12, 2016 ... The Northeast is being warned to brace for what could be the coldest
    temperatures in over a decade this Valentine's Day weekend.

  • What Happened to the Polar Vortex? | Climate Central

    http://www.climatecentral.org/news/what-happened-to-the-polar-vortex-1...

    Dec 22, 2015 ... The infamous polar vortex is actually linked to the unusual warm winter weather
    in the eastern U.S., though that pattern could soon flip.