A second push of bitterly cold air has blasted its way south and east, bringing extremely cold temperatures for millions of Americans who have already endured nearly a week of January-like chill. There have been more than 350 record lows and record cool highs set, covering 42 states, since Sunday.
On Wednesday morning record lows were broken or tied from New York to New Orleans and more record lows and record cool high temperatures are possible.
With blocking high pressure aloft over eastern Alaska and northwest Canada, a direct pipeline of cold air will come from Siberia to near the North Pole, then southward into Canada and the U.S., particularly the Plains and Midwest. While not nearly as cold in magnitude, the arctic surges will also sweep into parts of the East.
This is a classic Arctic outbreak pattern that will remain largely locked in over these areas this week.
http://www.wunderground.com/news/arctic-cold-outbreak-november-locked-20141110
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