"Remote-triggered avalanches allow you to trigger a slide from hundreds of feet away, sometimes while standing on flat ground or in the trees. Understanding this phenomenon is crucial for safety."
"Most dangerous avalanches involve a Persistent Weak Layer, often a layer of hoar or sugary facets buried beneath a heavy slab of snow. Your weight can cause that buried layer to collapse."
"The crack from a collapse can travel at incredible speeds across low-angle terrain until it reaches a steep slope, where gravity takes over and can lead to a massive avalanche."
Remote-triggered avalanches occur when a fracture line travels through a weak layer of snow, allowing a slide to be triggered from a distance. This phenomenon can happen even when a person is standing on flat ground. The collapse of a Persistent Weak Layer can create a 'whumpf' sound, indicating danger. If the fracture reaches a steep slope, it can lead to a massive avalanche, demonstrating the importance of understanding this risk in backcountry skiing.
Read at SnowBrains
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