Bulletin d’avalanche

Southern San Juan

Colorado Avalanche Information Center
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Danger d’avalanche

Mon
Tue
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Périmé — ce bulletin a expiré 7 months 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

A Special Avalanche Advisory is in effect from Friday evening through Sunday for the San Juan Mountains. A winter storm will dramatically change conditions, making it easy for backcountry travelers to trigger dangerous avalanches this weekend.

You can trigger avalanches where you find more than around 8 inches of snow that has formed into a cohesive slab on slopes steeper than about 35 degrees. Watch for cracking in the snow as an indication that a slab has developed. If you experience this sign of unstable snow, avoid steep slopes.

Once the recent snow forms a slab over what was a very weak snowpack, avalanches could be triggered from a distance or from below.

Régions couvertes