As things stand today (13.2.2015), the areas from the GranParadiso and the MonteRosa to the Dolomites in the east are particularly affected. But the Lake Alps and the areas from the Hautes Alpes in the southwest of France are also likely to receive supplies.
Now the great thing about this dump: In the south, the whole thing falls with relatively little wind on a fairly stable old snow cover, but unfortunately not everywhere, because in France the old snow is problematic, but here Ullr doesn't dump that much either. And the best thing is that it comes down as snow a long way. In the west and the Maritime Alps as well as some of the southern foothills of the Alps, it can sometimes rain up to 1000-1200 m, but in the main precipitation areas it snows up to 600-700 m or even down into the valleys.
The total amounts are difficult to predict: but overall, there should be more than a meter of fresh snow from the eastern Aosta Valley to the Adamello in the Dolomites by Tuesday. In the core zone around the MonteRosa even up to 150 cm of fresh snow. However, this is only a total amount estimate and the snow depth increases are more likely to be around 70 to 100 cm due to the distribution over four days, as the fresh snow can constantly settle. Here are the amounts up to Sunday, which can be given with greater accuracy: Southwest France 20 to 40 cm. From the Aosta Valley via Monte Rosa and the Adamello area to the Dolomites 40 to 70 cm. There may be 80 to 90 cm in one or two of the reservoirs, but the meter will certainly not be full by Sunday.