Alert area and period
This alert applies from the Hautes Alpes to the Arlberg, until Thursday midday. And then another alert should follow for the south.
Wind
The wind is blowing strongly from westerly directions, which of course also means drifting snow and drifting snow problems further up. But the strong wind is also pushing the whole thing massively up to the main Alpine ridge, into Valais and north-western Ticino and it's not just snowing on the edge of the Alps.