Boletín de aludes

Togwotee Pass

Bridger-Teton Avalanche Center
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Peligro de aludes

Sat
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
Sin grado
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Desactualizado: este boletín caducó last year. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Heightened avalanche conditions exist on specific terrain features. Deeper avalanches involving weak layers of snow buried 3-5 feet deep remain possible in very steep terrain.  Evaluate very steep slopes carefully, especially on the north half of the compass and previously loaded by the wind.

 

Problemas de aludes

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1.5–3

    Weak layers of sugary facets exist in the middle of the snowpack and near the ground on most slopes. Avalanches involving these layers will be 2-3 feet deep and up to 5 feet deep on heavily wind-affected slopes. Triggering one of these dangerous avalanches is possible on very steep slopes over 35 degrees. Signs of instability such as cracking, collapsing, or recent avalanches may not be present before triggering a large avalanche capable of propagating long distances. Multiple tracks on a slope do not indicate stability with this problem type. Suspect terrain includes very steep, rocky, and/or wind-affected slopes where thin spots exist, making it possible for humans to impact buried weak layers.

    Several days of above-freezing temperatures and a weak overnight freeze could increase the likelihood of triggering a persistent slab avalanche. Surface slabs could step down to deeper, weaker layers, resulting in a larger avalanche than expected.

    The last human triggered persistent slab avalanche occurred on March 2nd in terrain similar to this.

    Photo: Dakota Richardson

Avalanche Discussion

We are transitioning from several days of springtime weather to a colder, cloudier, and more active weather pattern, which will help stabilize the snowpack today. Keep the following in mind during the transition:

  • Wet loose avalanche activity could still be a concern with enough heating today. Look for softening snow surfaces and rollerballs coming from your sled or skis. If you see these signs or find wet/slushy snow, move to lower-angle slopes.
  • Cornices are most likely still sensitive right now after the last few days of sun. Minimize time spent on slopes with large cornices looming overhead. They can break unexpectedly and act as very large triggers.

Several bear sightings have been reported this spring. When planning for the day, bear spray, group travel, and appropriate food storage should be considered.

Please give us a hand with our forecasts by submitting your observations HERE. You can also text what you see to 307-264-3050. You can be anonymous or simply text a photo with an elevation and aspect. Thanks!

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