Mt Hood

Problemi valanghivi

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

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

  Probabilità

  Possible

  Dimensione

  1

  Shallow wind slabs will linger on lee slopes above about 6500'. Recent observations from around Mt Hood suggest that slabs around 3-6" thick are still present where windblown snow has accumulated.  These slabs are generally soft and are most likely to be found on lee slopes near ridgelines and under cornices. Use inconsequential wind loaded test slopes to examine the bond of wind transported snow before committing to larger open slopes. These avalanches are unlikely to be large, but use caution near terrain traps like creeks and above cliffs where even a small slide could have big consequences. Cornices have grown substantially over the last two weeks and may fail easily. Give cornices plenty of space and avoid traveling underneath them.

  

• 

  Loose Wet

  N

  NE

  E

  SE

  S

  SW

  W

  NW

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

  Probabilità

  Possible

  Dimensione

  1

  Rising temperatures and rain at some elevations will make it possible to trigger loose wet avalanches. If you notice temperatures above freezing, wet snow surfaces, roller balls beginning to form, or trees dripping, you may be able to trigger loose wet avalanches. This will be most likely at middle and lower elevations and on steep slopes. If you see evidence of weakening snow surfaces, avoid slopes steeper than 35 degrees and unsupported slopes such as those above cliffs and creeks.