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  • Polar vortex - Wikipedia, the free encyclopedia

    http://en.wikipedia.org/wiki/Polar_vortex

    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 ...

  • 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 ...

  • 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 ...

  • Bad news, America: The Polar Vortex is coming back! - Salon.com

    http://www.salon.com/2014/10/15/bad_news_america_the_polar_vortex_is_c...

    Oct 15, 2014 ... Remember last year's polar vortex? The record low temperatures? The steam
    rising from Lake Michigan? The water that froze mid-slosh?

  • Polar vortex 2: Not likely this winter - USA Today

    http://www.usatoday.com/story/weather/2014/10/16/winter-weather-foreca...

    6 days ago ... Remember the polar vortex? It may be a distant memory this winter after federal
    forecasters said Thursday that a repeat of last year's extremely ...

  • Deep Freeze: Was the Polar Vortex Really the Cause? - weather.com

    http://www.weather.com/news/weather-winter/polar-vortex-facts-and-myth...

    Jan 22, 2014 ... ... you be prepared for bitter cold, extreme heat and more. The polar vortex wasn't
    the primary cause of the early January 2014 Arctic outbreak.

  • Polar Vortex

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

    Jan 6, 2014 ... securityManager, com.weather.huracan.security.NoSecurity@49512fcb.
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  • polar vortex | New York Post

    http://nypost.com/tag/polar-vortex/

    WASHINGTON — Federal forecasters don't expect a return of frequent cold blasts
    from the polar vortex this winter. Nor should the weather system that blocked ...

  • 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 ...

  • 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 ...