Soldier & Wood River Valley Mtns

Problemas de aludes

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque

  Probabilidad

  Possible

  Tamaño

  1–2

  Continued snow showers and moderate winds today will build thicker slabs where the wind has been at work transporting snow. You are most likely to find this problem at upper elevations, but you could find trouble in wind-exposed terrain features (ridgelines and gullies) at middle elevations. Anticipate thicker slabs on the northern half of the compass; these slabs have formed over various potentially weak surfaces, including facets and crust + facet combinations. Expect freshly formed slabs to be easy to trigger on steep slopes, especially on NE, N, and NW-facing slopes. You could trigger one of these slides from lower-angled terrain above, below, or to the side of a steep slope. 

  Don't rule out the possiblity of finding trouble in more sheltered terrain, especially on the northern half of the compass where recent snowfall fell onto a weak old snow surface. 

  

• 

  Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta montaña
  • Límite del bosque
  • Bajo el límite del bosque

  Probabilidad

  Unlikely

  Tamaño

  1–2

  It's been three weeks since the last large persistent slab avalanche occurred in this zone. Triggering a big slide on weak snow buried in February is unlikely but can't be completely ruled out. Before triggering an avalanche, you're unlikely to experience obvious signs of instability like snowpack cracking or collapsing. You are most likely to trigger a slide in the mountains around the Wood River Valley, where:

  • The snowpack is relatively shallow - where the wind frequently blows, spots may exist where the slab is not uniformly thick
  • Any part of the slope you are on or connected to is steeper than about 35 degrees
  • The slope faces the northern 2/3 of the compass