The outlook for the first week of December is snow over the Alps. 50-70cm is forecast over 48 hours up until Tuesday night. This will be accompanied by very strong winds gusting to 120-140km/h. On Monday the snowline will drop temporarily to 700 meters before climbing to 1500 / 1800 meters on Tuesday. Warm air will dominate throughout the week.
The avalanche risk in the Northern French Alps will move to High on Monday during the day. Fresh slabs will form under the influence of the strong winds and these will be sitting on a snowpack that has been fragilized by the recent cold weather at altitude. Backcountry travellers should be extremely cautious. More snow is expected at altitude throughout the week bringing the total to around 1meter.
The best ski touring conditions are currently around the col du Lauteret/Briancon area with some tourng in the Haute-Maurienne and Chablais. There is a good base in the central Pyrenees above 2200 meters. The snowline in the Northern Alps is around 1600-1700 meters. 1200 meters in the Jura.