Avalanche on ne slope

Date/heure de l'avalanche

samedi 20 février 2021 à 12 h 00

Estimation de l'heure d’occurrence de l’avalanche

> 12 à 24 heures

Nombre d'avalanches dans ce rapport

1

Taille de l’avalanche

2

Épaisseur de la plaque

50cm

Largeur de la plaque

100m

Caractère de l'avalanche

• Plaque de neige de tempête

Type d'élément déclencheur

Naturel

Versant de la zone de départ

• NE

Bande d'altitude de la zone de départ

• Limite forestière

Altitude de la zone de départ

1 600m

Inclinaison de la zone de départ

40°

Type de cristaux de la couche fragile

• Grains à faces planes

Exposition au vent

Pente sous le vent

Couverture forestière

Pente dégagée

Saw evidence of a recent avalanche on a steep north east aspect that had propagated fairly widely (or multiple small slides occurred on the same slope). Crown varied from 50-100cm deep, although it was filling in by the time we saw it.

Jumping around on a similar aspect that hadn’t yet slid (with a rope on) resulted in lots of shooting cracks and small avalanches being released. At that location the storm snow was about 30cm thick and the rest of the snowpack was sugary facets. The snowpack here seemed pretty thin, and must have faceted out with last weeks cold snap. I also remote triggered a very small slab about 20m directly downslope from where I was stomping.