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  • Polar vortex - Wikipedia, the free encyclopedia

    http://en.wikipedia.org/wiki/Polar_vortex - 21 hours ago

    A polar vortex is a persistent, large-scale cyclone that circles either of the planet's
    geographical poles. On Earth, the base of the polar vortices are located in the ...

  • Fall 2014: Polar Vortex to Visit Northeast; South at Risk for Tropical Hit

    http://www.accuweather.com/en/weather-news/fall-2014-forecast-polar-vo...

    Aug 20, 2014 ... As fall 2014 takes form, the polar vortex will make sporadic visits to the Northeast,
    as the West remains parched and the threat of a tropical ...

  • What is a Polar Vortex? - AccuWeather

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

    Jan 8, 2014 ... A polar vortex is a large pocket of very cold air, typically the coldest air in the
    Northern hemisphere, which sits over the polar region during the ...

  • Polar vortex visits to U.S. linked to climate change - USA Today

    http://www.usatoday.com/story/weather/2014/09/02/polar-vortex-climate-...

    Sep 2, 2014 ... A new study says that as the world gets warmer, parts of North America could see
    more of the polar vortex.

  • 'Polar Vortex' in July? - The Weather Channel

    http://www.weather.com/news/science/environment/polar-vortex-july-chil...

    Jul 11, 2014 ... Naturally, this has media commentators speculating that the much-vaunted "polar
    vortex," which was blamed for this winter's brutally cold and ...

  • Polar Vortex

    http://www.weather.com/article/polar-vortex-plunge-science-behind-arct...

    Jan 6, 2014 ... Initial Servlet Path, /article. Initial PathInfo, /polar-vortex-plunge-science-behind-
    arctic-cold-outbreaks-20140106 ...

  • polar vortex | New York Post

    http://nypost.com/tag/polar-vortex/ - 6 hours ago

    WASHINGTON — Remember the polar vortex, the huge mass of Arctic air that
    can plunge much of the U.S. into the deep freeze? You might have to get used to.

  • The Point Everyone Is Missing About The Return Of The 'Polar Vortex'

    http://thinkprogress.org/climate/2014/07/14/3459809/polar-vortex-misse...

    Jul 14, 2014 ... According to at least one scientist, the debate over the term "polar vortex" misses
    a more important point about the unusual weather pattern ...

  • Frigid air from the North Pole: What's this polar vortex? - CNN.com

    http://www.cnn.com/2014/01/06/us/polar-vortex-explained/

    Jan 6, 2014 ... CNN meteorologist Brandon Miller answers questions about the distorted polar
    vortex and the big chill it's brought to.Americans in two dozen ...

  • Polar vortex in September's forecast - City & Region - The Buffalo ...

    http://www.buffalonews.com/city-region/weather/polar-vortex-in-septemb...

    Aug 6, 2014 ... If you're not ready to read about early winterlike weather, turn the page. Click to a
    different article. You've been warned. The polar vortex – that ...