Bulletin d’avalanche

Northern San Juan

Colorado Avalanche Information Center
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Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
  • Persistent Slabs

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

Avalanche Summary

Drifted areas are the most suspect for triggering avalanches. Triggering an avalanche in a wind-loaded slope below a ridge, open start zone, or cross-loaded gullies could break broader than expected. Slopes steeper than 35 degrees, with 10 inches or more of drifted snow, should be assessed cautiously. Wind-loaded areas often look smooth or pillow-like. Adjust your travels if you notice the snow surface transition from soft to stiff or observe cracking in the snow surface.

Sun in the afternoon will warm the dry snow on sunny slopes. You could trigger small avalanches in the warming snow. Avoid traveling on or under sunny slopes where you observe rollerballs, pinwheels, or fan-like point releases.

Safer travel options exist in areas protected from the wind and lower-angle slopes.

Régions couvertes