Brett Anderson

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Weekly Long-Range Forecast Model Update

December 11, 2012; 10:47 AM ET

Before I get to the weekly stuff, there will be a weak clipper-like storm tracking across the Prairies into tomorrow with a band of light snow. The map below shows the expected accumulations....

Here is my latest interpretation of the ECMWF long-range forecast model through early January. This product updates twice a week.

Shorter-range and long-range modeling consensus are still keeping most of the really cold air up across Alaska and western Canada through most of this winter. Looking at a number of models and upper-air data over the past few months, I continue to see very little support for sustained cold in the eastern half of North America; however, that does not mean there still cannot be some significant snowfall events, especially across the interior Northeast U.S. and throughout eastern Canada.

I will certainly keep you posted on future changes.

You can also follow me on my twitter @BrettAWX

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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Brett Anderson
Brett Anderson covers both short-term and long-term weather and storm forecasts for Canada in this blog for AccuWeather.com.