The snowpack has been moistened, as a consequence of rainfall, from the Valais over the northern flank of the Alps as far
as northern and central Grisons up to altitudes of approximately 2000 to 2200 m. At lower altitdues and in places where the
snow is shallow, the snowpack is thoroughly wet in some places. Wet-snow and gliding avalanches have been observed in particular
on the northern flank of the Alps and in the Lower Valais; in the western regions these releases fractured to more deeply
embedded layers of the snowpack and in isolated cases grew to large size. With the termination of the rainfall, activity of
wet-snow avalanches is expected to decrease.
At high altitudes, deep snowdrift accumulations were generated in some places as a result of the westerly winds. To start
with, these snowdrift accumulations are still prone to triggering.
The persistent weak layer which prevails from the southern Valais over the northern Ticino as far as Grisons still needs to
be evaluated with great caution due to the current higher temperatures and precipitation. Avalanches can trigger in deeper
down layers inside the snowpack particularly on less-frequented west-facing, north-facing and east-facing slopes. In isolated
cases avalanches can also grow to large size.