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May 12, 2013

North Cascade Glacier Accumulation Season Ends

The typical maximum snowpack accumulation on North Cascade glaciers occurs on May 10. Because the network of USDA Snotel stations are at lower elevations, the best measure of winter accumulation from these valuable long term stations is on April 1. The first image below is the mean April 1 SWE from seven long term stations in the North Cascades. In 2013 April 1 SWE is 10% below the 1984-2012 mean. …