Avalanche forecast

Northern San Juan

Colorado Avalanche Information Center
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Avalanche danger

Thu
Fri
Alpine
2 · Moderate
Treeline
3 · Considerable
Below
3 · Considerable
Out of date — this forecast expired last year. You’re viewing past conditions, not the current bulletin.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–2.5
  • Loose Wet

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

Avalanche Summary

Recent observations of remotely triggered avalanches highlight the possibility of triggering large avalanches. The most dangerous slopes face west to north through east and carry shallow trigger points like rock outcroppings, convex rolls, or steep panels of snow beneath cliff bands.

A marginal overnight freeze, blue skies, and warm temperatures increase the likelihood of wet snow avalanches. Avalanche danger will increase throughout the day due to rapid warming. Some wet avalanches may be larger than expected and release as a slab. Avoid this problem by starting and ending your day early and by moving to shady slopes when you start sinking into wet snow.

Recent strong winds also built large overhanging cornices along ridgelines. Give cornices a wide berth as they can break further back than you expect, and could collapse spontaneously from warming.

Regions covered