Bulletin d’avalanche

Northern San Juan

Colorado Avalanche Information Center
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Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
Périmé — ce bulletin a expiré 3 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

Avalanche Summary

Cohesive slabs of snow resting above a very weak snowpack makes it easier to trigger a dangerous avalanche on, below, or adjacent to slopes steeper than about 30 degrees at all elevations. An avalanche triggered from a wind-loaded, easterly-facing slope can break around you and wider than you expect, and could provoke a failure in weaker snow near the ground. The deeper the avalanche breaks, the larger it will grow in size and be more of a challenge to escape. Shooting cracks and rumbling collapses are signs of unstable snow, and suggest moving to lower-angle slopes or areas sheltered from the wind. Smaller avalanches can turn into bigger problems if you get swept over a cliff or stuffed in a terrain trap.

Régions couvertes