Fall and early winter predictions

5) The Pacific Decadal Oscillation (PDO) is similar to the El Nino/El Nino pattern but operates on a much longer time scale. There are some scientists that think the current phase of the PDO may be having a strong influence on the low levels of ice in the arctic the past several years. We have been in a cool phase of the PDO since 2008. When this phase turns warm again we could see even warmer temperatures than we have seen in the past few years.
http://www.boston.com/news/weather/weather_wisdom/2012/09/fall_and_early_winter_predicti.html