Sunday, December 23, 2012

December 2012 U.S. Snowcover

After a very mild start to December 2012, cold Arctic air has plunged into the lower 48 states and snow cover has dramatically increased. The two maps show the snow cover as of December 1, 2012 and December 22, 2012.  The snow cover on December 1, 2012 was only 10.0% of the lower 48 states.  By December 22, 2012 the snow cover had increased to 46.8% of the conterminous U.S.  With this much snow snow cover it will be difficult for temperatures to warm above normal in Nebraska for the next few weeks.

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