Bollettino valanghe

Togwotee Pass

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
Senza grado
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Non aggiornato — questo bollettino è scaduto 5 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

The avalanche danger today is Moderate. Heightened avalanche conditions exist in steep terrain where there is a persistent layer of weak snow near the ground. It remains possible for the weight of a skier or rider to trigger a deep slab avalanche, possibly from a distance or from below, in places where this layer exists. While triggering this type of avalanche is trending towards unlikely, the consequences of doing so would be dire. Evaluate terrain carefully and dig to identify the presence of this weak layer before committing to steep, consequential terrain. Tracks on a slope are not an indication that the slope is stable and free of this weak layer.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Slab depths over the December 5th interface of weak faceted snow and crusts vary from 2 to 5 feet depending on aspect and elevation. A hard slab has formed in many locations over this layer. The most recent avalanche activity on this layer is a reminder that it may remain reactive to triggers like snowmobiles and passing skiers. When dealing with persistent weak layers that are buried several feet deep, warning signs such as cracking and collapsing will probably NOT be encountered and previous tracks do NOT indicate stability.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Slightly warmer temperatures under sunny skies are on tap for tomorrow as high pressure remains in place. Expect high temperatures in the thirties tomorrow afternoon with a light westerly wind in the mountains. Solar gain on sunny aspects is unlikely to contribute to anything other than some surface instabilities. The main problem tomorrow will be the lingering risk of triggering a very large avalanche on the buried, weak snow which leads us to a Moderate danger rating. The potential remains for a skier or rider to trigger the weak layer over a thin spot in the slab. In some steep and previously wind loaded areas, the resulting slab could be well over five feet thick and unsurvivable. Keeping to lower angled slopes at middle and upper elevations is the best way to avoid this problem. Stepping into steep, wind-loaded, or unsupported terrain with consequences may be the best way to find this problem.

Regioni coperte