31 Dec '15, 1am

via @dotearth

This storm is helping to transport large amounts of heat out of the subtropics and mid-latitudes into the Arctic and that is resulting in a pattern change that is reversing the record strong polar vortex into a weaker, more disturbed polar vortex that should support a colder weather pattern across the hemisphere…. This northward transport of heat is exactly what we understand is required to weaken the polar vortex. I and others have argued that when the Arctic warms the continents cool. Therefore I would argue that this same freakish Arctic storm and transport of heat that at first resulted in the all the “warm” headlines could potentially further lead to headlines of the more wintery variety, including Arctic or cold air outbreaks and snow storms…. I feel that the deep low pressure and the strong transport of warm air into the Central Arctic is part of a trend that we hav...

Full article: http://dotearth.blogs.nytimes.com/2015/12/30/in-wild-wint...

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