Maira and Grana Valleys

Individual weak layers exist in the top section of the snowpack on shady slopes. In addition there is a danger of wet snow slides and avalanches.

Individual weak layers exist in the top section of the snowpack on shady slopes. In addition there is a danger of wet snow slides and avalanches.

Weak layers in the old snowpack can be released by people in particular on very steep shady slopes. The avalanche prone locations for dry avalanches are to be found in particular in gullies and bowls, and behind abrupt changes in the terrain above approximately 2500 m. As a consequence of warming during the day individual small and, in isolated cases, medium-sized avalanches are possible below approximately 2500 m. This applies in particular in case of releases originating from very steep, sunny starting zones that have retained the snow thus far.

Weak layers exist in the centre of the snowpack on steep shady slopes. In some cases the wind slabs have bonded still only poorly with each other and the old snowpack. Sunshine and high temperatures will give rise as the day progresses to slight moistening of the snowpack in particular on steep east, south and west facing slopes below approximately 2500 m. On steep sunny slopes as well as at low and intermediate altitudes less snow than usual is lying.

Outgoing longwave radiation during the night will be good.