Mt Hood

Problèmes avalancheux

• 

  Wind Slabs

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Likely

  Taille

  1–2

  There should be enough new snow and wind to build fresh wind slabs near and especially above treeline Friday night and Saturday.  Winds will become strong as they shift to SE on Saturday afternoon,  so slopes may become cross-loaded or slabs may build on unusual aspects.  It may be difficult to tell which slopes have been recently loaded.  Shooting cracks on test slopes or lower angle terrain are red flags that you're likely to trigger an avalanche on nearby steep slopes. 

  Near treeline might offer wet snow problems or wind slab problems, or neither, depending on how much temperatures drop and new snow falls through Saturday afternoon.  Be alert to changing conditions, the near treeline band may be lower hazard to begin the day and end the day with a shallow wind slab problem. 

  

• 

  Loose Wet

  N

  NE

  E

  SE

  S

  SW

  W

  NW

  • Alpin
  • Limite forestière
  • Sous la limite forestière

  Probabilité

  Possible

  Taille

  1–2

  You may see evidence of a recent natural wet loose cycle from earlier in the storm as temperatures rose and snow changed to rain.  Natural wet loose avalanches should be unlikely after several days of warm temperatures.  However, if you are on a long steep slope, you might be able to trigger a wet loose avalanche that picks up steam further downhill.  Use extra care near terrain traps like cliffs, rocks, and other hazards that would amplify the consequences of a small avalanche.