Bulletin d’avalanche

Banner Summit

Sawtooth Avalanche Center
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Danger d’avalanche

Fri
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible
Périmé — ce bulletin a expiré 5 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Generally stable conditions exist, and large avalanches are unlikely. You could trigger loose avalanches on steep slopes that face the sun if surface crusts turn mushy.

Problèmes avalancheux

  • Loose Wet

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

    While large Wet Loose avalanches are unlikely today, they won't be impossible to trigger if surface crusts break down while receiving direct sunlight.  These avalanches are most likely during the heat of the day on slopes that face the sun. They often initiate near the bases of trees, rocks, and cliffs. Although slow-moving, these avalanches are surprisingly powerful and difficult to escape. They may also trigger larger wet slab avalanches (example) as they move downhill.

    Additional Discussion - Dry Slabs: It'd take some bad luck, but it's not impossible to trigger small slab avalanches in previously wind-loaded, extreme terrain. The likelihood of triggering one is highest above approximately 8,500 feet on NW-N-NE-facing slopes. 

    Large Wet Loose avalanche in the Northern Sawtooths near Williams Peak. NE 9000'.

    Photo: Sawtooth Avalanche Center

Régions couvertes