Boletín de aludes

Galena Summit & Eastern Mtns

Sawtooth Avalanche Center
Ver en el mapa

Peligro de aludes

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

Lo esencial

You're most likely to trigger a large avalanche on steep slopes facing the northern two-thirds of the compass. In recent days, multiple groups triggered avalanches remotely—from flat terrain below, above, and to the sides of steep slopes.

Problemas de aludes

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–2.5

    Slabs formed in early February rest above a variety of ugly, widespread, weak layers (facets, surface hoars, crusts, and combinations). You are most likely to trigger a 2-4 foot thick avalanche where:

    • The slope or terrain you're connected to is steeper than about 35 degrees
    • The slope faces the northern 2/3 of the compass
    • The slab is less than about 3' thick—relatively shallower spots may exist where the wind frequently blows, and the slab is not uniformly thick.

    Before triggering an avalanche, you may or may not experience obvious signs of instability like snowpack cracking and collapsing or whumpfing. Persistent Slabs can release in surprising ways, break wider than expected, and release above or hundreds of feet away from where they are triggered. We can't assume tracks on a slope mean it is safe; several people could descend a slope before triggering an avalanche.

Avalanche Discussion

Countless avalanches released naturally in this zone during the big February storms:

This clear evidence shows the snowpack needs more time to adjust to the big load from the recent storms. Consider the consequences of a meaty slab avalanche breaking hundreds of feet wide before committing to playing on or below steep slopes with trees, creeks, lakes, or gullies where the debris would pile up.  

Regiones cubiertas