Boletín de aludes

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Peligro de aludes

Alta montaña
4 · Fuerte
Límite del bosque
4 · Fuerte
Bajo el límite
2 · Moderado
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Desactualizado: este boletín caducó 7 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Very dangerous avalanche conditions exist above 8,000 feet, and TRAVEL IN AVALANCHE TERRAIN IS NOT RECOMMENDED. Yesterday, numerous natural and human triggered avalanches were reported across the region. These large to very large slides are failing on weak, faceted snow near the base of the snowpack, and similar slides are likely to be triggered today in terrain that held snow prior to Thanksgiving. Natural activity will also remain possible. Involvement in one of these slides will likely be fatal. Abundant new snow is very enticing, especially on weekends early in the season. Don’t fool yourself; this is not the time to be in, around or underneath any avalanche terrain where these persistent slabs reside. Yesterday in the Smiths Fork, a snowmobiler triggered a one foot deep wind slab on a northeasterly aspect at an elevation of 8,800 feet, and similar surface wind slabs could also be triggered by backcountry travelers. These smaller slides could step down and release a deeper persistent slab.

Problemas de aludes

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    2–3

    Weak, faceted snow persists near the base of the snowpack on slopes with an existing snowpack prior to Thanksgiving. Since December 8th, over four inches of snow water equivalent has been added to these basal facets. In terrain were these persistent weak layers are present, skiers and riders are likely to trigger slab avalanches with depths ranging from three to five feet. These avalanches could easily kill you or someone in your party. They are breaking high into lower angle terrain, running long distances and can also be remotely triggered.

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2

    Wind slabs have formed in leeward terrain at all elevations. Slabs could be up to two feet deep at the mid and upper elevations and around a foot deep at the lower elevations. These recently developed slabs could be triggered by backcountry travelers in steep terrain.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Another round of snowfall is slated for tonight and into Saturday, albeit with less of a punch than what has been seen over the past week. Overnight lows in the mountains will be near 10 degrees before rising into the mid-teens during the day. Westerly ridgetop winds will range from 15 to 25 miles per hour.The general avalanche hazard is expected to remain High at the mid and upper elevations on Saturday, and TRAVEL IN AVALANCHE TERRAIN IS NOT RECOMMENDED. In terrain that held snow prior to Thanksgiving, skiers and riders are very likely to trigger large to very large persistent slab avalanches, and natural activity will still be possible. These avalanches could easily kill you or someone in your party. They are breaking high into lower angle terrain and can also be remotely triggered. Abundant new snow is very enticing, especially on weekends early in the season. Don’t fool yourself; this is not the time to be in, around or underneath any avalanche terrain where these persistent slabs reside. Recently developed surface slabs could also be triggered by backcountry travelers, and these smaller slides are likely to step down and release a deeper persistent slab. In steep, wind-loaded terrain at the lower elevations, skiers and riders could trigger smaller slides involving the recent snowfall. There, the avalanche hazard is expected to remain Moderate.

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