The Soggy Search for Surface Hoar

Carte pour le rapport du Réseau d'information en montagne: The Soggy Search for Surface Hoar

Conditions de neige

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

Information

La journée était:
  • Brumeuse
  • De tempête
  • Chaude
Conditions d'avalanche
  • 30 cm + de neige fraîche ou transport important de neige par le vent ou pluie au cours des dernières 48 heures
  • Whoumfs ou bruits sourds ou fissures qui se propagent.

Commentaires

Heading out the door, we expected conditions to still be pretty touchy after Friday night’s storm. With 10+ cm in the forecast for the day with some cranking wind, we chose a pretty simple and sheltered objective and headed for Red Heather hut. Lots of cars (and stoke!) in the parking lot. There was only about 30 cm of snow on the ground at 1000 m, but as we climbed so did the snowpack! At the hut (1400 m) there was 80 to 100 cm of snow.

We dug a few quick profiles and found the drought layer from November to be a significant weak layer of large surface hoar down 40 to 50 cm. This layer was reactive in snowpack tests, producing moderate to hard propagating results with extended column tests. Pretty spooky stuff! It kept us on mellow terrain with no overhead hazard.

The storm snow was becoming heavy with temperatures rising to near 0 C at the hut. Ski quality was still okay and there have been lots of stoked snow sliders up there enjoying the powder.