Boletín de aludes

Togwotee Pass

Bridger-Teton Avalanche Center
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Peligro de aludes

Alta montaña
3 · Notable
Límite del bosque
1 · Débil
Bajo el límite
Sin grado
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Desactualizado: este boletín caducó 7 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Dangerous avalanche conditions exist above 8,000 feet. Numerous large to very large persistent slab avalanches released naturally or were human triggered on Friday in the Tetons. Skiers and riders venturing into terrain that had an existing snowpack prior to Thanksgiving are likely to trigger similar slides. Involvement in one of these avalanches could easily have a fatal outcome. Yesterday, skiers triggered three slides on the northwest face of the Radio Tower. Backcountry travelers could trigger similar slides today in steep, wind-loaded terrain, and these smaller slides have the potential to step down and release a deeper persistent slab. Expert snowpack evaluation and conservative terrain choices will be essential for safe travel in avalanche terrain. Below 8,000 feet, skiers and riders might be able to trigger a small, isolated pocket of soft slab in very steep avalanche starting zones.

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 that held snow prior to Thanksgiving. Last week’s storm cycles added a significant load to these weak basal layers, and backcountry travelers are likely to trigger these slabs with depths of two to four feet. While the likelihood of triggering these slabs is decreasing, the consequences remain the same. These avalanches could kill you or someone in your party. They are breaking high into lower angle terrain, running long distances and can also be remotely triggered. Remember, previous tracks are not an indication of stability with a persistent slab problem.

  • Wind Slabs

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

    Above 8,000 feet, skiers and riders could trigger recently developed wind slabs up to two feet deep in steep, wind-loaded starting zones.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Expect partially clearing skies overnight before cloud cover increases during the day on Sunday. A few isolated snow showers may be possible in the mountains, but any accumulations should be minimal. Overnight lows in the mountains will be near zero before rising into the single digits during the day. Northwesterly ridgetop winds will back to the west at 10 to 20 miles per hour.The general avalanche hazard at the mid and upper elevations is expected to be Considerable on Sunday. Persistent slabs will remain the primary threat. Skiers and riders could easily trigger these large to very large slabs in steep terrain that held snow prior to Thanksgiving. While the likelihood of triggering these slabs is decreasing, the consequences remain the same. These slabs are likely to be three to five feet deep in the Tetons and Southwest Trails area, and two to four feet deep in the Togwotee Pass forecast zone. If you are caught in one of these slab avalanches, a fatal outcome is likely. Recently developed surface slabs, with depths on one to two feet, could still be triggered by backcountry travelers in steep, wind-loaded terrain, and they have the potential to step down and release a deeper persistent slab. Expert snowpack evaluation and conservative terrain choices will be essential for safe travel in avalanche terrain. At the lower elevations, skiers and riders might be able to trigger an isolated pocket of soft slab in very steep avalanche starting zones. There, the general avalanche hazard is expected to be Low.

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