You may just need to keep Nordstau as is rather than using the ultra-scientific "northern orographic uplift" or "congestion".



http://forums.epicski.com/showthread.php?p=841891
You have weather systems coming up from the southwest and hitting the alps. They then dump their snow on the south facing side of the alps (reverse for a 'Nordstau').

http://dict.leo.org/forum/viewGeneraldiscussion.php?idThread...〈=de
Everything looks white already, can you imagine? I am not attuned to it, either. We are about 400 m above sea level, and in the "Nordstau" of the Schwäbische Alb at the moment, this is probably why we have the snow right now. But knowing this doesn't really help.
Get some breakfast now.

http://www.galahad.it/mod-subjects-viewpage-pageid-24.htm
and Troughs and Nordstau lead mainly to light snow showers. Ongoing from the end of September snowfall can be expected, from January to April typical snow depth varies between 1 and 2 m (Figure 2).