| Issued from few informations |
The snowfall that between Sunday afternoon and yesterday has affected the whole region, especially the border area between the valley of the Lys and the Mont Blanc area (snow level from 1200 to 1400 m), has brought 20-35 cm of fresh snow 2000 m, 30-45 cm at 2500 m.
You can ski from 1900-2200 m up where the thickness of snow on the ground varies from a few to about 40 cm, from 20 to 250 cm at 2500 m, while above 2800-3000 the snow cover is very good.
From Sunday, winds, moderate to strong, have drifted the snow at high altitude creating, near ridges and hills, small wind slabs at northern and southern aspects.
These slabs, resting on an unfavorable surface of old hard snow, can be triggered from a skier, especially on steep slopes above 2800-3000 m.
Today you will have a sharp increase in temperatures, with the freezing level rising sharply Thursday (3800 m). While, in the long run, the stability of the snow cover will improve, on the other hand there will be an increased spontaneous activity. Downloads and loose-snow avalanches, small and medium-sized, small and medium slabs, on very steep slopes at all aspects above 2800 m are expected. The refreezing of the surface snow cover is good only in the morning and present from 2300-2500 m; during the morning then you will face a rapid decrease in stability.
From Thursday, the avalanche danger will increase for the poor night refreezing , this only above 2700-2800 m, and very high daytime temperatures.
THE UPDATE OF THE SNOW AND AVALANCHE BULLETIN IS SUSPENDED AND IT WILL START AGAIN APPROXIMATELY IN DECEMBER 2016
THE SNOW AND AVALANCHES WARNING SERVICE