Salt River and Wyoming Ranges

Problemi valanghivi

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta quota
  • Limite del bosco
  • Sotto il limite del bosco

  Probabilità

  Likely

  Dimensione

  1–2

  Today, 6-12 inches of new snow and moderate winds from the NW will form wind slabs 1-2 feet thick at upper elevations on all aspects. Expect to find this problem along ridgelines and in cross-loaded areas such as gullies. These avalanches could step down into deeper buried weak layers creating larger avalanches. Watch for obvious signs of instability such as cracking or collapsing. Steer clear of areas where winds have created fresh drifts, pillows, cornices, or stiffened snow surfaces. Move to more sheltered terrain if you encounter signs of wind-affected snow. 

  

• 

  Persistent Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alta quota
  • Limite del bosco
  • Sotto il limite del bosco

  Probabilità

  Possible

  Dimensione

  1–2.5

  Weak layers of faceted snow are now buried 2-4 feet deep. While these layers are trending less reactive, it remains possible to trigger a large avalanche - particularly in areas with a shallower snowpack. Terrain features near cliffs, rocky slopes, or previously wind-affected terrain often harbor a shallower snowpack and should remain suspect. It has been 5 days since the last known avalanche failed on this layer in the neighboring Snake River Zone.

  These avalanches may not show signs of instability and can be triggered remotely from above, below, or adjacent to slopes over 30°. Tracks on a slope do not indicate stable conditions. Minimize your risk by traveling one at a time on steep terrain, and identifying features that harbor a shallower snowpack. You can remove the uncertainty of this problem by sticking to slopes under 30°.