Well, does this mean a white Christmas ahead and another cold month? Not so fast. Too early to tell about a specific date (December 25th) as one storm could be the difference maker, but overall a major pattern shift is underway.
My December Prediction: Much WARMER than Average -- Near Normal Precipitation
This is supported by a noticeable shift to a more "zonal" west to east flow in the upper levels of the atmosphere around 30,000 ft. This flow from the Pacific coast, NOT interior Canada favors a much warmer scenario.
|Jet Stream -- This weekend (December 7th)|
|CFSv2 Climate Model for December|
~Meteorologist Chris Vickers