Avalanche forecast

Southern San Juan

Colorado Avalanche Information Center
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Avalanche danger

Wed
Thu
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
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Out of date — this forecast expired 2 years ago. You’re viewing past conditions, not the current bulletin.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2

Avalanche Summary

A large winter storm bringing heavy snow and strong wind begins overnight and is expected to last into Wednesday. As new snow accumulates, avalanche danger will rise, and wind-loading could trigger a natural cycle. You can trigger large avalanches in the new and drifted snow, and some could step down into deeper weak-layers, breaking wide across terrain features and running long distances. Avoid traveling on or under slopes steeper than about 30 degrees.

Regions covered