Boletín de aludes

Togwotee Pass

Bridger-Teton Avalanche Center
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Peligro de aludes

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

Lo esencial

It is unlikely that you will trigger an avalanche today. Chances remain highest in steep, rocky terrain where small slabs could be 1-3 feet deep. Although the possibility of triggering an avalanche is unlikely, the consequences of an avalanche could be high, particularly in terrain where you could get strained through trees, rocks or pushed into terrain traps. 

Problemas de aludes

  • Persistent Slabs

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

    The odds continue to tip in our favor. It is unlikely that you will trigger a persistent slab avalanche, but it is not impossible. We received a small additional load to the snowpack on Togwotee 2 days ago. While the new snow is not enough to tip the balance and impact underlying weak layers, we continue to see propagation of the December slab failing on the November drought layer. While unlikely, if you happen to find the shallow spot in the snowpack that triggers the avalanche, the resulting slide could be consequential, especially given the shallow snowpack with rocks and stumps lurking just below the surface.

    This problem is most likely to be found above 8,500’ on northwest through northeast aspects. Continue to dig into the snow to see if the weak structure exists where you are riding. Avoid terrain traps and consider consequences.

     

    (12/19/2023) Photo: Travis Baldwin

Avalanche Discussion

We have not had a reported avalanche or significant loading event in over two weeks. The danger has been reduced and we have a low avalanche danger today at all elevations. Does this mean we are in the clear and can go tee off? I wish. The ingredients for a slab avalanche still remain in the snowpack. We have a slab of December snow sitting over weak, sugary snow from November. Yesterday, there was some localized collapsing noted on Angle Mountain where accumulations were the highest (6”) in the zone from the storm 2 days ago. While it is unlikely that you will trigger an avalanche, I still won’t enter steep, rocky, unsupported slopes with any sort of consequence. There are still hints in the snowpack that make me nervous in  those specific terrain situations. Even a small slab can have high consequences when combined with a thin snowpack that contains hidden obstacles or if you get knocked off your feet above a cliff. 

There are more and more tracks out there that suggest stability but we know that the weak layer can still be impacted even after many riders. Enjoy the good snow that can be found on shady aspects but don’t let consequential terrain catch you off guard.

The dry spell that ended two days ago left us with several surface conditions that will be worth tracking moving forward. The strong diurnal temperature swings created crusts on south aspects and faceted snow on shady aspects as well as surface hoar on multiple aspects and elevations. As you ride, dig around and see whats under the latest few inches - it might help predict where future problems are located when we get our next big snow load.

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