Powder skiing is a function of snowfall, terrain and how you reach the snow, so weigh all three. The snowiest corners of the Alps are the Arlberg, led by St Anton and Lech, and the central Swiss ranges around Engelberg and Andermatt, which sit in the path of the big storms. Pair that snow record with terrain that holds powder, north facing and high, and you have the makings of a great deep day.
Be honest about your level, because the best powder mountains are serious. Engelberg, Verbier and Chamonix are expert terrain where a qualified mountain guide is not optional but essential, both for safety in avalanche country and for finding the untracked snow. Strong intermediates moving into off piste are better served by Val d'Isere and Obergurgl, where the gradient is friendlier and the consequences lower. Never ski off piste in the Alps without checking the avalanche bulletin and carrying the right equipment.
Plan for flexibility, since powder rewards those who can move when the storm lands. Resorts close to airports, Engelberg near Zurich and Verbier near Geneva among them, make a last minute storm chase realistic. For the wider picture, compare our powder in Switzerland ranking, powder in Austria and powder in France, browse the best off piste resorts in Europe, and read our guide to choosing a ski resort before you go.