Munchio, posted this a few pages back (you wont see the exact graph I joined two graphs together):

Goto: http://www.arl.noaa.gov/ready/cmet.html?

type:

Latitude: 43.28
Longtitude: 20.8

click continue, then choose 0-180h GFS on the meteogram option, then type the password... This will give you a good percipitation forecast; to calculate how much snow will fall multiply the percipitation by 8-10.. if there's 2mm of rain it could fall as 2cm of snow.

Next visit: http://www.arl.noaa.gov/ready/animations.html

Scroll down to europe find the row named "MSLP, 1000-500mb Thickness, & Precipitation" and select the long range GFS gif option, this will give you an easy to follow percipitation forecast at a slightly lower altitude.

That should cover every angle