Areas and period:
This alert applies to the areas from the French Maritime Alps to Ticino with the core from the Simplon/Monte Rosa to the border area between France and Italy in the Turin Alps, as a south-easterly and later easterly accumulation is now setting in, pushing into these areas. The question is when it will turn, because even in northwestern Ticino there could still be quite a lot coming with a stronger southerly component.
The snow line:
Will remain quite high and only start to fall once the precipitation ends on Sunday. This means it won't get cold until the snow is more or less through. Until Saturday, the snow line will be between 1500m in the core in the narrow valleys and 2100m in the Maritime Alps and generally where it spills over the main ridge. It won't be powder until 2000-2400m.
Wind:
Not as dramatic as you might expect given the volumes. This means that snow will be blown away massively due to the amount of fresh snow, but there may still be wind-protected areas further up in the southeast or east thaw.