Avalanche forecast

Southern San Juan

Colorado Avalanche Information Center
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Avalanche danger

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Out of date — this forecast expired 3 years ago.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

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    2–3
  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–2.5

Avalanche Summary

You can trigger a large and dangerous avalanche in the recent storm snow. Avalanches will be larger where winds have built fresh slabs of snow two to three feet deep over softer collapsable layers on west to north to east aspects near and above treeline. Avalanches on wind-loaded slopes may break wider than expected, crossing terrain features, stepping down to buried weak layers, and running long distances to the valley floor. Make conservative terrain choices as the snowpack adjusts to the recent large load.

Regions covered