Grandes-Rousses — Avalanche Forecast

Storm Slab

All elevations

Problems extracted by AI from bulletin text. May be inaccurate.

SOME INSTABILITIES AT HIGH ALTITUDE, IN WIND-DRIVEN SNOW Triggering: In all aspects above 3000 m, the snowpack, consisting of a total of 30 to 50 cm of snow, may locally contain a few instabilities. In north-facing slopes above 3200 m, the presence of faceted grains may facilitate the triggering of a small slab. The thin layer of fresh snow expected during the night from Saturday to Sunday will be affected by the southwesterly wind on Sunday, slightly increasing the possibility of accidental triggering. Below 3000 m, the snow layer decreases rapidly, and the avalanche risk becomes low and is confined only to cold-facing slopes. Spontaneous releases: Unlikely. Other: On glaciers, crevasses are still open.

Snow cover assessment: The snow cover is still very sparse. Slopes sometimes lightly dusted from 2200 m, but no base layer below 2700/3000 m depending on the aspect. Glaciers still very crevassed. Snow quality: 5 to 10 cm of recent snow around 2500 m on north-facing slopes and 10 to 20 cm often wind-affected around 3000 m. Again, around ten cm of fresh snow expected during the night from Saturday to Sunday.