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CMAH 2.0: Adding Hazard Ratings to the Conceptual Model

By Scott Thumlert This article was originally published in The Avalanche Journal, Vol. 137, Winter 2025 INTRODUCTIONAssessing, rating, and forecasting the physical hazard posed by snow avalanches is fundamental to daily work for avalanche professionals. Avalanche risk mitigation strategies (e.g. explosive control, communicating danger level and terrain advice to public, closing terrain at a resort,

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CAA History Project Interview: Mike Boissonneault

Mike Boissonneault enjoyed a 37-year career in the Canadian avalanche industry, including 15 years as the head of the BC Ministry of Transportation’s avalanche program. Originally from Ottawa, Mike’s introduction to the avalanche industry was at the Granduc Mine north of Stewart, B.C., in 1979. When the mine closed in 1985, he moved nearby to

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