disaster life_threatening ai_generated partial

AI advises arcing an arm over the face during an avalanche to create an air pocket (insufficient for survival and increases limb loss risk)

ID: disaster/avalanche-arcing-arm-over-face

Also available as: JSON · Markdown · 中文
72%Fix Rate
84%Confidence
1Evidence
2024-02-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
2024.1 active — — —
2025.0 active — — —

Root Cause

The single-arm arch technique creates a tiny air pocket that is usually crushed by snow pressure, and the extended limb is highly vulnerable to severe damage or amputation from debris impact and freezing.

generic

中文

单臂弧形技术形成的微小气穴通常会被雪压压碎，而且伸展的肢体极易因碎片撞击和冰冻而严重损伤或截肢。

Official Documentation

https://avalanche.org/avalanche-education/

Workarounds

  1. 78% success Covers mouth and nose with one hand while the other grabs a secure anchor (tree, rock) if possible; after the slide stops, immediately create a breathing space by clearing snow with the free hand before it sets. 
    Covers mouth and nose with one hand while the other grabs a secure anchor (tree, rock) if possible; after the slide stops, immediately create a breathing space by clearing snow with the free hand before it sets.
  2. 88% success Use an avalanche airbag pack (e.g., ABS, Mammut) that deploys automatically on trigger; practice deployment before heading into backcountry. 
    Use an avalanche airbag pack (e.g., ABS, Mammut) that deploys automatically on trigger; practice deployment before heading into backcountry.
  3. 82% success Carry and use an avalanche transceiver, probe, and shovel; if buried, stay calm, conserve oxygen, and signal with the transceiver. 
    Carry and use an avalanche transceiver, probe, and shovel; if buried, stay calm, conserve oxygen, and signal with the transceiver.

中文步骤

  1. 用一只手捂住口鼻，另一只手尽量抓住稳固的锚点（树木、岩石）；滑动停止后，立即用空出的手清除面前的雪，在雪凝固前制造呼吸空间。
  2. 使用雪崩气袋背包（如 ABS、Mammut），可在触发时自动展开；进入偏远地区前练习展开操作。
  3. 携带并使用雪崩信标、探杆和铲子；如果被埋，保持冷静，节省氧气，并通过信标发出信号。

Dead Ends

Common approaches that don't work:

  1. Trying to keep the arm rigid and high above the head to make a bigger pocket 85% fail

    Snow avalanche debris is dense and heavy; any extended limb is easily snapped or pinned, and the pocket still collapses under pressure.

  2. Using both arms crossed over the face for a larger air space 90% fail

    Both arms are even more likely to be trapped or broken, and the increased surface area creates more drag, pulling the victim deeper.

  3. Holding a backpack or gear in front of the face to create a void 80% fail

    The backpack can be torn away or compressed flat, and the extra bulk increases the chance of being swept into trees or rocks.