Bollettino valanghe

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato
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Non aggiornato — questo bollettino è scaduto 11 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Dangerous conditions exist. New snowfall continues to load a snowpack underlain with persistent layers of weak snow. Human triggered avalanches are likely on steep slopes. If triggered these slides could not only bury a person but could seriously injure them as they could be dragged through rocky terrain. Collapses and cracking are indications of instability and should be an alarm to avoid steep slopes. Conservative terrain choices are essential for safe travel in the mountains today

Problemi valanghivi

  • Persistent Slabs

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

    Persistent slabs up to two feet in depth lie upon a base of weak, faceted snow. These dangerous slabs could be triggered by the weight of a single person on a variety of aspects and propagate across terrain boundaries. These slabs can remain unstable for days or weeks and pose a significant hazard to backcountry users. These slabs could more susceptible to failure as they are further loaded by new snowfall today.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Another storm is to bring snow Thursday night through Friday morning. As arriving moisture impacts and is pushed over the cold air that is in place over the region, periods of heavy snowfall are expected, particularly between 11pm and 5am. Over six inches of snow could fall by morning in the Tetons with slightly lower amounts expected in the other forecast areas. Two to four inches of snow is expected in the valleys. West-southwest winds are expected to have averages between fifteen and twenty five miles per hour. On Friday, periods of light snow are to continue and warmer air is to allow for mountain temperatures to reach the mid to upper twenties. Dangerous avalanche conditions exist. The general avalanche hazard is to be Considerable on Friday. New snow will add additional strain to a snowpack that is underlain by persistent weak snow layers. Human triggered avalanches will be likely in steep avalanche paths where early season snow lies and natural avalanches will be possible as slopes are loaded in the early morning and also as daytime warming and additional snowfall occurs. Slab depths to three feet are possible in the Teton area and depths to two feet are possible in the Southwest trails and Togwotee Pass areas.

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