Cornice Failure

Map for Mountain Information Network report: Cornice Failure

Snow conditions

Riding quality was:
Good
Snow conditions were:
  • Heavy
  • Powder
  • Wet
  • Wind affected
We rode:
  • Alpine slopes
  • Cut blocks
  • Open trees
  • Sunny slopes

Information

The day was:
  • Cloudy
  • Stormy
  • Sunny
  • Warm
  • Windy
Avalanche conditions
  • Rapid temperature rise to near or above 0°C or wet surface snow.

Comments

Large cornice failure on a north slope 72 hours plus. Produced a Sz 3.5 that gouged and stepped down. Ran 500m vertical, 300m crown. Debris running to mid runout.

Ski out on west facing steep BTL slope had numerous skier controlled loose wet Sz 1s gathering mass and flowing through thick regen.

Skied powder in alpine to supportive schmoo at treeline to heavy snot below treeline. Convective flurries moved through but the sun kept slopes warm.