After a month of very high pressure it looks like we may have a white Christmas in Val d'Isère! Look at this weather link https://www.meteoblue.com/fr/meteo/prevision/semaine/val-d%27isère_france_2971074
The change in weather is most likely to see a change in Sports Injuries. Currently the pistes are very hard which causes more back injuries. The snow is most likely to cause more knee ligament injuries.
Let hope the weather forecast is correct!