Tuesday, December 6, 2011

Winter '11 / '12 - Eurasia Snow Cover - November

The latest monthly data from the Rutgers Snow Lab shows the observed areal snow cover over Eurasia was more than one standard deviation above normal during November for the 2nd time in three years.  It was the 5th highest coverage during the period of record (1966 - 2011).


Other Novembers where the snow cover was more than one standard devaition above the long term mean occured in 2009...1993...1973...1972...1970...and 1968.

Note the cluster of above normal Novembers between 1968 and 1973.  What the 3 out of 4 years had in common were negative PDO...negative QBO...and negative NAO.

Areal snowfall data courtesy Rutgers Snow Lab.
Earlier post about Octobers' Eurasia snow cover here.

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