Bulletin d’avalanche

Moist/wet-snow avalanches still possible. Caution urged towards weak layers in old snow.

Heavy snowfall (up to 20cm) over 2000m, some rainfall, more is expected esp. at high altitudes. Nocturnal outgoing longwave radiation is nearly absent. The snowpack is moist. In the lowermost part of the snowpack there are faceted, expansively metamorphosed weak layers evident, esp. at high altitudes. In the middle part of the snowpack on N/W/E facing slopes there are facted weak layers, esp. above 2000m. Due to fresh snowfall and moderate-to-strong velocity southerly winds, small snowdrift accumulations will be generated esp. in ridgeline terrain.

Isolated showers in early morning, later slackening off, then the clouds will disperse and sunny intervals are expected. In the afternoon, local showers again expected. Moderate SW winds. At 2000m: +1 degree. Source: GeoSphere

Beware wet snow and weak old snow

Moist/wet-snow avalanches still possible. Caution urged towards weak layers in old snow.

Due to rainfall and the snowpack which is becoming thoroughly wet, increasingly frequent moist/wet-snow avalanches are possible, esp. on steep slopes in all aspects below 2000m. Releases are relatively small and can be triggered in the old snow even by one sole skier. Such danger zones lie on very steep shady slopes and in transitions into gullies and bowls above 2000m on steep N/W/E facing slopes and in gullies and bowls and can reach medium size. In addition, small snowdrifts accumulations require attentiveness, esp. at high altitudes.