September Update: 2012-2013 Winter Forecast

December 500mb geopotential height anomalies for most similar winters

January 500mb geopotential height anomalies for most similar winters

February 500mb geopotential height anomalies for most similar winters

March 500mb geopotential height anomalies for most similar winters

Needless to say, it seems that we will have a slow start to our winter, followed by a very backloaded (snowy and cold) for February and March. For the top 5 ranked winters that are most similar to this upcoming one based on longer term teleconnection indices, all 5 had the majority of their snowfall in February and March.

#1 ranked winter snowfall: percentage of mean snowfall (year = 1969)

#2 ranked winter snowfall: percentage of mean snowfall (year = 1964)

#3 ranked winter snowfall: percentage of mean snowfall (year = 1952)

#4 ranked winter snowfall: percentage of mean snowfall (year = 1991)

#5 ranked winter snowfall: percentage of mean snowfall (year = 1995)