@idefix37
Great, Thanks. It confirms my assumption.

Regarding the sounding forcasts (Right mouse button klick at any point in the map):
I can figure out the dewpoint (Blue) and temperature (Red) curve.
there are more (Grey colored lines); what do they stand for ? (Dry- and wet adiabates ?).
And once you klick the left mouse button you open an animation - how does it work ??