This alert applies from the Hautes Alpes to the Arlberg, until Thursday midday. And then another alert should follow for the south.
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.
New snow forecast for the next 2 days.
New snow forecast for the next 2 days.
The snow line will be between 1400 and 1800m at most, higher especially in the foothills of the Alps and France, lower in Valais and the inner Alps. Depending on the passage and change of fronts, it can also snow deeper in between and at night. Powder can then be found consistently from 1700-1900m.
There will be 30-50 cm distributed quite homogeneously from the Arlberg to France by Thursday in two waves, tonight and on Wednesday evening.
I can also imagine 60 cm in a traffic jam in France or in the western lower Valais, but as it doesn't snow continuously, there shouldn't really be much deviation upwards.
I would choose areas with trees and alpine terrain in the western Valais or in France on both days as it can tear up briefly during the day, including tomorrow (Wednesday). In northern Switzerland and on the Arlberg, you might also be able to get into the trees if you know them. Thursday should be quite good weather overall from midday.
From Thursday, a short but decent südstau should set in until Saturday. And with it Föhn in the north.
After that, the models favor a somewhat unclear and not very strong westerly phase. As far as the Easter days are concerned, however, this is all still very uncertain. It looks more unsettled than dry and sunny.
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