Speaking of Polar Vortex, the mets are talking about a Sudden Stratospheric Warming event around Jan 5th (next Monday) and a possible Polar Vortex split a couple of weeks after that, which could send a really cold blast into the U.S. the 3rd or 4th week of January. In between this cold wave and that one (should it materialize), there may be a January thaw.
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