Brett Anderson

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Weekly Long-Range Update

November 13, 2012; 9:50 AM ET

Currently, a fairly quiet week across North America, which is a nice break after back-to-back weeks of storms. I, and many others in this office, will take it!

Currently, the Arctic Oscillation (AO) is in its positive phase, which is keeping most of the cold across the north, while a stronger Pacific jet is delivering milder air across southern Canada and into the U.S.

There are some indications that the AO will begin to trend toward the negative phase by the end of the month, which could mean a busier start to December, despite what the ECMWF model says below.

Anyway, here is my latest interpretation of the ECMWF model long-range output that now goes into December.

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

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About This Blog

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