Leach Ridge - weak layers still kinda there

Carte pour le rapport du Réseau d'information en montagne: Leach Ridge - weak layers still kinda there

Conditions de neige

La qualité du hors-piste était:
Excellente
Les conditions de neige étaient :
  • Poudreuse
Nous avons parcouru:
  • Pentes de faible inclinaison

Information

La journée était:
  • Chaude
Conditions d'avalanche
  • Avalanches de plaque datant d'aujourd'hui ou d'hier.
  • Whoumfs ou bruits sourds ou fissures qui se propagent.

Commentaires

Toured up and then skied down Leach Ridge, 15-20deg slopes, W aspect, from 1650 to 2200m

= frequent whumfing

= 10cm new snow at 2000m, moist (good snowball, dry glove palm)

= +1 at 1650, -2 at 2200m

= calm at 1650, moderate SW wind at ridge, limited snow transport

= E aspect cornices are giant ..... small cornice droppings had triggered thin slab of HST (overnight storm snow) looked 10-15 deep from afar (photo)

= No result in extended column test through to 30 taps (low low angle site) ...... pulled on the block (Fred Flinstone science-style), failed sudden planar SP on Jan 24th layer ..... dropped the block and it broke again on Feb 18th layer (photos)