Boletín de aludes

Elkhorns

Wallowa Avalanche Center
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Peligro de aludes

Fri
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Desactualizado: este boletín caducó 5 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

New snow combined with wind will be forming cohesive slabs today that will be likely to be triggered by a rider.  Natural avalanches are also possible in terrain steeper than 35 degrees near and above treeline.  Avoid slopes that are greater than 35 degrees, as well as runouts of avalanche paths.  Avoid riding above terrain traps such as gullies or cliffs.    

Problemas de aludes

  • Storm Slabs

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

    Since 1/3, the Elkhorns have received storm totals of 15-20" of new snow with snow water equivelant amounts around 1.7" of water.   There have been some temperature fluctuations within the storm snow that have created softer layers that sit underneath harder layers.  These softer snow layers that are a result of colder temperature swings will be a likely weak layer under more cohesive snow that will fall today during the warming temperatures.  Quick hand pits and pole pokes are a great way to see if harder snow sits above softer snow.  If you see shooting cracks from your skis, board, or machine, avalanches are likely.  If you feel the snowpack collapse under your boards or machine, avalanches are likely.    

Avalanche Discussion

Over the last several days, observers have witnessed a variety of avalanche problems.  There have been reports of sensitive dry loose avalanches in steep sheltered terrain over 35 degrees on 1/4/22.  Cornices were growing and were sensitive to a person as the wind ramped up out of the SW on 1/4/22.   As precipitation rates increased during that evening into yesterday, a natural avalanche cycle was observed on road banks the morning of 1/5/22.  See photos below from our observations from the Western Wallowas.  

Other things to keep on your radar today will be the wind creating sensitive wind slabs and cornices in leeward terrain.  Look for evidence of snow drifting in plumes, ripples on the snow surface, or hollow feeling snow.  Avoid these areas.    If the temperatures spike above freezing, and the lower elevations start to receive rain, avalanche danger will rise rapidly, and it is probably a good sign to leave the mountains.  

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