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SESK: Stuff Everyone Should Know · sesk.info/ski-avalanche-level-3-considerable

At Considerable (level 3) avalanche danger, human-triggered slides are:

Likely. Be conservative and choose gentle terrain.

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  1. Likely ✔
  2. Impossible
  3. Very unlikely

Why: At level 3, natural avalanches are possible and human-triggered slides are likely. Use careful route-finding, avoid many slopes, and stay on low-angle terrain not connected to steeper slopes above.

Huh, didn't know that: Historically, the most avalanche deaths have happened on days when the danger was rated Considerable.

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References

Answer: Likely. At level 3, natural avalanches are possible and human-triggered slides are likely. Use careful route-finding, avoid many slopes, and stay on low-angle terrain not connected to steeper slopes above.

  1. Avalanche.org: Considerable Danger (Level 3) avalanche.org/avalanche-encyclopedia/avalanche-forecast-danger/considerable-danger-level-3
    human-triggered slides are likely
    Checked 2026-10-10.
  2. Avalanche.org: Considerable Danger (Level 3) avalanche.org/avalanche-encyclopedia/avalanche-forecast-danger/considerable-danger-level-3
    Historically, the highest number of avalanche fatalities have occurred when the danger was rated Considerable.
    Checked 2026-10-10.

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