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

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1.5–2.5
  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

Avalanche Summary

If you find a shallow spot on a slope steeper than around 35 degrees, where a stiff slab sits over a weak layers in the top meter of the snowpack you might be able to trigger an avalanche. Trigger points include shallow buried rocks, convex rollovers, or near cliffs or trees. Avoid traveling where the snow surface looks smooth and pillow-like or where the surface is stiff and hollow sounding. Mild weather over the next few days will make these slabs more stubborn to trigger.

Warm temperatures, lack of wind, and ample sunshine will warm the snow surface on sunny and low elevations slopes. Avoid traveling on or below steep slopes with rollerballs, pinwheels and wet gloppy snow. The threat of wet avalanches will increase during the day.

Régions couvertes