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22 October 2021

From Shasta, CA to Adams to Baker, WA to Kokanee, BC to Banff, AB High Glacier Mass Loss in 2021

Easton Glacier on Mount Baker in late August 2021, with less than 20% of the glacier retaining snowpack. The exceptional heat of the summer of 2021 across glaciated mountain ranges of the Pacific Northwest, reduced snowcover extent from Mount Shasta, CA north to Mount Adams and Mount Baker, WA and east to Glacier National Park, MT,  Kokanee Glacier, BC and Bonnet Glacier, Alberta.  Here we examine late summer images to illustrate the extent …

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20 February 2014

Pacific Northwest Glacier Mass Balance 2013

North Cascades Climate Conditions: The 2013 winter accumulation season featured 93% of mean (1984-2013) winter snow accumulation at the long term USDA Snotel stations in the North Cascades, Washington (Figure 1). The melt season was exceptional by several measures. The mean summer temperature from June-September and July-September at Lyman Lake is tied with the highest for the 1989-2013 period (Figure 2). The average minimum temperature at Lyman Lake was the …

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