The pronounced drop in temperatures following the last few days of extremely mild temperatures is having a favourable effect
on the snowpack. The layers of snow nearest to the surface are becoming firmer, particularly in the western and the northern
regions below approximtely 2000 to 2400 m. At high altitudes the snowpack manifests striking effects of wind impact.
From the southern Valais over the northern Ticino as far as Grisons, there are weak layers evident inside the snowpack. Avalanches
can be triggered in these more deeply embedded layers of the snowpack, particularly on seldom-frequented slopes of west-facing,
north-facing and east-facing slopes. In isolated cases, avalanches can then grow to large size.