Bulletin d’avalanche

Tetons

Bridger-Teton Avalanche Center
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Danger d’avalanche

Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
1 · Faible
Périmé — ce bulletin a expiré 11 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Avalanche conditions remain dangerous. Due to poor snow structure at the mid and upper elevations the weight of a single person can trigger large to very large slab avalanches on a variety of aspects. In these conditions expert terrain analysis skills and conservative terrain choices are essential for safe travel in the mountains. Avalanches are unlikely below an elevation of 7,500 feet where the general avalanche hazard is expected to be LOW.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3

    At the mid and upper elevations the potential for humans to trigger slab avalanches with depths to five feet poses a serious threat to backcountry users. These dangerous slabs will fail on a deeply buried layer of faceted snow that persist on all aspects. Previous tracks are not an indication of stability.

Avalanche Discussion

Limited moisture in a cold air mass could produce some snow flurries and areas of light snowfall. Skies will be mostly cloudy. Temperatures will be mostly in the single digits above and below zero. Winds will become westerly and increase to 5 to 15 miles per hour.The general avalanche hazard is expected to be CONSIDERABLE. Areas of unstable snow exist. At the mid and upper elevations large avalanches could be human triggered by the weight of a single person on a variety of aspects. These deep persistent slabs are often triggered from areas where the snow is shallow and weak and are particularly difficult to forecast and manage. Tracks on a slope are not an indication of stability.

Régions couvertes