Bollettino valanghe

Togwotee Pass

Bridger-Teton Avalanche Center
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Pericolo valanghe

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

In sintesi

Dangerous avalanche conditions exist. Strong winds yesterday continued to load a thin, weak snowpack. You will likely trigger an avalanche on steep slopes, especially those exposed to the wind. It is possible to trigger an avalanche remotely–from below, above, or to the side of steep slopes. Look for signs of wind, including drifts, stiff pillows, and cracking snow surfaces.

 

Problemi valanghivi

  • Wind Slabs

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

    Yesterday, moderate to strong southwest winds continued to build slabs on lee aspects, with upper elevations gusting in the 60s mph. Expect to find stiff drifts 2-3 feet in depth sitting on a variety of facets and crusts. These slabs may be hard and break above you.  If skies clear and temperatures warm this afternoon, steep southerly slopes may become more sensitive to the weight of a rider. Use caution around steep wind-affected terrain and watch for cracking and stiff, hollow-sounding drifts.

    (12/17/2024)

    Recent avalanche in terrain affected by the wind. 8700' E aspect.

    Photo: Alex Drinkard

  • Persistent Slabs

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

    A foot of snow fell on Togwotee since Saturday. This snow fell on various weak snow surfaces, including facets, crusts, and surface hoar.  This problem is more pronounced on north through east aspects. Remote triggering these slabs is possible from below, above or next to steep slopes. Use caution around any slope above 30 degrees, and remember that you may not see any signs of instability until you trigger an avalanche.  This problem is most pronounced where wind has contributed to the slab depth and hardness.  Give the snowpack time to adjust to this recent load and dig down and identify exactly where the weak snow exists.

     

     

    (12/17/2024)

    9400' N aspect

    Photo: Alex Drinkard

Avalanche Discussion

The snowpack remains thin on Togwotee. As we transition to a persistent slab problem, keep in mind that travel advice has not changed much - continue to be conservative around steep slopes, particularly rocky slopes or other thin areas where you will easily impact the weak layer below. As you ride, trench your sled or dig down to locate the weak, sugary snow. It should be easy to find and is a sure sign of the current problem.  Give the snowpack time to adjust to the recent load.

Many obstacles remain hidden just below the snow surface. Rocks, stumps, and logs create a serious hazard for riders and can cause significant trauma to you or your sled. Keep this hazard in mind as you travel today and consider the consequences of an injury in the backcountry. Talk with your partners about contingency plans and what emergency equipment you have in your pack.

Please consider reporting avalanches or field observations here. Please consider reporting avalanches or field observations here. Your observations help us handle snow and avalanche conditions better and make more accurate forecasts. Thanks!

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