Boletín de aludes

Togwotee Pass

Bridger-Teton Avalanche Center
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Peligro de aludes

Thu
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
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

Avalanche conditions are generally safe and large avalanches involving buried weak layers are unlikely at all elevations. Small avalanches involving new snow may be triggered on isolated wind loaded terrain features at the highest elevations. Watch for pockets of unstable wind drifted snow in very steep upper elevation terrain and give cornices a wide buffer. 

Problemas de aludes

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely
    Tamaño
    1.5–2.5

    Triggering a large avalanche on weak snow is unlikely. Weak layers of faceted snow 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. Signs of instability such as cracking, collapsing, or recent avalanches will likely not be present before triggering a large avalanche capable of propagating long distances. You're most likely to trigger an avalanche where the snowpack is thinnest. Very steep (>35°), rocky, convex terrain remains suspect. Multiple tracks on a slope do not indicate stability with this problem type. Manage your risk by limiting your time on very steep slopes previously loaded by the wind, and steer clear of any areas that appear visibly shallow or where it's easy to find the ground with your sled track.

Avalanche Discussion

Togwotee received 4-5” of snow over the last 48 hours and may receive 1-3 more inches today. Winds have been light to moderate and shifted over that time period from south to west to northwest. Today’s pulse of snow should do little to change the avalanche hazard. Wet avalanche problems are not likely to be a concern today, given the relatively cold and mostly cloudy conditions that are forecasted. Still, it is April, and any periods of prolonged sun could destabilize snow surfaces. Low danger does not mean no danger. Be on the lookout for isolated wind slabs if traveling to the highest elevations today. Remember that of all of the forecast zones, Togwotee has the worst structure, harboring weak layers in many areas. Keep this in mind when you approach very steep slopes that are heavily wind-loaded - any buried weak layers are getting tested. However unlikely it may be to trigger an avalanche, consider the consequence if the slope fails.

Continue to give cornices plenty of room, and remember that they break much further back towards the ridge than you might expect.

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