Surface Hoar And Depth Hoar Information Center
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Get comprehensive updates, key reports, and detailed insights compiled from verified editorial sources.

This video is part of a story map on avalanche research and forecasting on Glacier National Park's Going-to-the-Sun Road. Chapter 3 is about choosing terrain and how pros track persistent weak layers. Simon Horton and Bruce Jamieson. 25 October ... Dr. Karl Birkeland of the National Avalanche Center skied into Bacon Rind with us today. We found the CAIC forecasters traveled in the La Plata Mountains to investigate the reactivity of persistent weak layers on below treeline slopes. Evelyn Lees of the Utah Avalanche Center described how facets form due to cold temperatures. Sawtooth Mountain Guides shared this footage of a Extended Column Test in the Smoky Mountains. The test was performed on a ...
Bill walks us through a quick discussion on faceting and Mark Staples of the UAC and his partners did not ride in a steep bowl after finding buried Doug Chabot of the GNFAC finds the top six inches of the snowpack consists of near North San Juan Zone of Colorado. Shot on Dec 16, 2018 on a NE aspect around 10600'. In the video, there is a break within the ... An Extended Column test showing a full propagation failure across the column at the base of the snowpack. We have a very weak ... Doug Chabot of the GNFAC goes hunting for a layer of

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... storm winds when this layer was originally buried (Mid-February), a more preserved layer of facets and/or
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Last Updated: June 5, 2026
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