Cornice

Jasper National Park

geoffgelliot , Monday 12th April, 2021 4:10PM

skier trigger cornice failure 20ft away from edge of cornice. Caused a 10ft deep by 20ft long block to fall and started a size 2 avalanche. Potential for the cornice to sweep or suck more snow than what was hanging over the edge as cracking occurred beyond the edge. NW facing Northerly slopes skied well with up to 30cm of light powder with small sluffing

Snow conditions were: Powder. Weather conditions were: Cloudy, Cold, Sunny, Windy. We rode: Alpine slopes, Steep slopes. We avoided: Sunny slopes. Riding quality was amazing.

Avalache Conditions: 30cm + of new snow, or significant drifitng, or rain in the last 48 hours.

Avalanche

skier trigger cornice failure 20ft away from edge of cornice. Caused a 10ft deep by 20ft long block to fall and started a size 2 avalanche. Potential for the cornice to sweep or suck more snow than what was hanging over the edge as cracking occurred beyond the edge. NW facing. Avalanche size maybe less than 2 based on picture but the terrain it fell in was littered with exposed rocks. Northerly slopes skied well with up to 30cm of light powder with small sluffing