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North American Public Avalanche Danger Scale Add to ...

Experts began working on easy-to-understand avalanche bulletins for the public and released a first set of simple icons in 2004. The system was quickly adopted in Switzerland and, with further tinkering, became the European standard. Revisions continued and, in 2010, Parks Canada, the avalanche centre and other collaborators unveiled the North American Public Avalanche Danger Scale, which uses colourful images and ranks the danger level.

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