Avalanche forecast

Northern San Juan

Colorado Avalanche Information Center
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Avalanche danger

Sat
Sun
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
Out of date — this forecast expired 2 years ago. You’re viewing past conditions, not the current bulletin.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
  • Persistent Slabs

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

Avalanche Summary

An increase in westerly winds will be drifting recent snowfall into stiffer slabs on leeward slopes and in cross-loaded gullies above treeline. It will be easier to trigger an avalanche on slopes around 35 degrees or steeper. Places where you find around 10 inches of wind-drifted snow should be assessed cautiously before committing – especially if the snow surface looks smooth or rounded. Adjust your travels to lower-angle slopes protected from the wind if you see cracking in the snow, or the snow surface transitions from soft to stiff. Even a small, isolated avalanche can lead to a rough ride or unfortunate outcome in the wrong terrain.

Triggering a deeper breaking avalanche has become less likely, but is still a lingering potential in shallow areas on steeper slopes. These low-probability avalanches can be consequential in more complex or extreme terrain. Shallow, trigger spots lurk near rock outcroppings, on steep rollovers, and in wind-exposed areas below ridges and cliffs.

Regions covered