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What’s Ahead for Winter Weather?

November 29, 2012
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WSI (Weather Services International) expects the December-February period to be colder than normal across much of the northern half of the U.S., especially the northern Rockies and northern Plains. Above-normal temperatures will be common across the southern US, especially in the Southwest. The WSI seasonal outlooks reference a standard 30-year normal (1981-2010).

"After an extended spell of above-normal temperatures across much of the US during the past 18 months, the last few months have been characterized by below-normal temperatures across much of the eastern U.S., as a weak El Nino event has tried to emerge" said Dr. Todd Crawford WSI Chief Meteorologist.

"While this El Nino event now appears to be a dud, most of our more climate indicators suggest that very cold air will be in plentiful supply across western and central Canada this winter, with frequent border crossings into the northern U.S. Currently, we do not expect the kind of frequent atmospheric blocking in the North Atlantic (otherwise known as the negative NAO) that would result in more extreme and more widespread cold in the eastern U.S. However, trends in some of the long-lead indicators suggest that this assumption may be challenged, and that the risk to the forecast in the eastern U.S. is towards the colder side."

In December, WSI sees the monthly breakdown as:

  • Northeast: Colder than normal, except northern New England
  • Southeast: Warmer than normal
  • N Central: Colder than normal
  • S Central: Warmer than normal
  • Northwest: Colder than normal
  • Southwest: Warmer than normal


In January, WSI forecasts:

  • Northeast: Colder than normal
  • Southeast: Warmer than normal
  • N Central: Colder than normal
  • S Central: Warmer than normal
  • Northwest: Colder than normal
  • Southwest: Warmer than normal


In February, WSI forecasts:

  • Northeast: Warmer than normal
  • Southeast: Warmer than normal
  • N Central: Colder than normal
  • S Central: Warmer than normal
  • Northwest: Warmer than normal
  • Southwest: Warmer than normal
     

For More Information
See if you have rain or sunshine forecast for your area. Check AgWeb's Pinpoint Weather.


 

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