The Dragon Sleeps...for now

Carte pour le rapport du Réseau d'information en montagne: The Dragon Sleeps...for now

Conditions de neige

La qualité du hors-piste était:
Excellente
Les conditions de neige étaient :
  • Poudreuse
  • Affectée par le vent
Nous avons parcouru:
  • Pentes alpines
  • Forêt dense
  • Pentes de faible inclinaison
  • Forêt dégagée
Nous sommes restés à l'écart de:
  • Pentes convexes

Information

La journée était:
  • Nuageuse
Conditions d'avalanche
  • Whoumfs ou bruits sourds ou fissures qui se propagent.

Commentaires

The dragon sleeps... but may wake up if you poke it in the right spot.

Experienced some very substantial whumpfs on N / NE slopes at 2100m. Very loud, wide, and could feel the snow drop under our skis! Shooting cracks for 10+ meters in some spots.

Dug a profile to see what's up:

CTE3 - sudden collapse - Jan 28 MF crust (3cm thick) was breaking and collapsing on significant facets layer under it (5+cm). Upper snow column dropping 2cm when it failed.

Crust was down 45-50cm on Feb 10th, so deeper now.

3 tap easy result and whumpfs were on lee slopes that had wind loaded, increasing load and pushing the crust to a tipping point. Much safer results in protected areas.

Despite the reactivity, whumpfs, and cracks, there were zero naturals observed and we were not able to ski cut any avalanches.