Bulletin d’avalanche

Caution urged towards wet snow and weak layers in old snow.

Caution urged towards wet snow and weak layers in old snow.

On extremely steep slopes, mostly small wet loose-snow avalanches are possible. In addition, during afternoon isolated small-to-medium wet slab avalanches are possible esp. at the foot of rock walls in starting zones which have not yet discharged. Caution on sunny slopes and on shady slopes below 2200m. Weak layer can still be triggered in places by one sole skier. Such danger zones occur esp. on N/W/E facing slopes above 2000m. Avalanches can grow to medium size. In addition, small snowdrift accumulations require caution, they can be triggered by one sole skier in some places.

Nocturnal outgoing longwave radiation is intermittently quite good. The snowpack will soften increasingly during the course of the day, esp. on extremely steep sunny slopes. In the middle part of the snowpack on N/W/E facing slopes there are faceted, expansively metamorphosed weak layers evident. Snowdrift accumulations lie deposited atop unfavorable layers, esp. above 2300m on shady slopes.

On Friday, extensive sunshine, good visibility. Widns will be moderate from NW/NE, reaching 50 km/hr.. At 2000m: +2 degrees, at 1000m 11 degrees. Source: GeoSphere

Little change expected