The fresh fallen snow and freshly generated snowdrifts from the beginning of this week were deposited atop a weak layer adjoining
the old snowpack surface. This layer is deeply blanketed over on the northern flank of the Alps and no longer likely to trigger.
In the Valais and in Grisons, it is less thickly blanketed over and prone to triggering on west-facing, north-facing and east-facing
slopes more than anywhere else. In this transition of layers, several avalanche were triggered by persons during the last
few days. Avalanches which fracture down to ground-level layers occurred only in very isolated cases and then, in places where
the snowpack was shallow.
As a result of strong-velocity northeasterly winds, loosely-packed snow will be transported. The freshly generated snowdrift
accumulations are frequently prone to triggering.