Upper Susa and Chisone Valleys

New snow and wind slabs at intermediate and high altitudes. Increase in danger of dry and moist avalanches as a consequence of solar radiation.

New snow and wind slabs at intermediate and high altitudes. Increase in danger of dry and moist avalanches as a consequence of solar radiation.

On steep slopes medium-sized and, in isolated cases, large avalanches are possible. As a consequence of solar radiation, the avalanche activity will increase. The new snow and wind slabs can be released by a single winter sport participant, in particular in gullies and bowls, and behind abrupt changes in the terrain. Caution is to be exercised in particular in the regions exposed to heavier precipitation. The avalanche prone locations are covered with new snow and are difficult to recognise. Backcountry touring and other off-piste activities call for defensive route selection. Whumpfing sounds and natural avalanches serve as an alarm sign.

Over a wide area over a wide area 50 to 80 cm of snow has fallen since Monday above approximately 1900 m. The sometimes strong wind has transported some snow. New snow and wind slabs are lying on a weakly bonded old snowpack, in particular on shady slopes. Large-grained weak layers exist in the snowpack on shady slopes.

On Monday it will be mostly sunny. The avalanche danger will persist.