The layers of fresh snow and freshly generated snowdrifts from the beginning of this week are settling and stabilizing to
an increasing degree. Particularly on shady slopes, these layers can still be triggered in some places. As a consequence of
strong-velocity southwesterly winds, furthermore, fresh snowdrift accumulations are being generated at high altitudes. From
the southern Valais over the northern Ticino as far as Grisons, weak layers exist inside the old snowpack.
Avalanches can fracture down to more deeply embedded layers in the snowpack in those regions and subsequently grow to large
size.
As a result of solar radiation and daytime warming, the snowpack surface on steep sunny slopes has become moist and during
Wednesday night it will form a melt-freeze crust which is not capable of bearing loads. Particularly in the western and the
northern regions, gliding avalanches continue to be possible.