Areas and time period:
The alert applies from the French Alps to the Vienna Woods, so you can enjoy a croissant and a Viennese Melange in the powder snow at the same time. The core should go from northern France to the Arlberg, and I have to venture quite far onto the thin ice now, because I don't really like that period. I'll leave the alert in place until Saturday night, with most of it coming by Saturday morning. But it will more or less flake through from tomorrow, so I can't wait until tomorrow, Thursday, to set the alarm. That's unpleasant for me, because you know: all precipitation forecasts from 48 hours in the future are sometimes more of a model wishful thinking than seriously useful.
Why is there no alarm for the southeast, because the colorful maps predict powder in Italy, Slovenia and Carinthia? Because I don't believe that the flow with the leeward low will be right and that it will head towards Croatia/Balkans rather than the Alps. But I'll give hypothetical amounts.
Wind:
It's already whistling violently in between. It reaches veritable gale force and turns in all directions from SW to north at altitude. After the wind shifts to the north on Friday, it will be a little less, which will increase the chances of powder at the top, but also the risk of covering anything that has blown in. But since I'm preaching to the faithful here, you know that looking at the LLBs is standard.