But, where is left wing and right flap?!
Must have misplaced them on takeoff...strange I didn't notice anything.
Seriously - the plane shows fine on my screen, but since the FG internal screenshot function is broken when I use multithreading, I use the external screen capture to do shots when I have multithreading on, but that sometimes has graphics errors, part of which is that sometimes objects simply 'aren't there' in a strip - which is what you see here. Since it's not meant to show the plane but the weather pattern, I didn't bother to take another one.
@Zan:
I once made a contrail script that uses humidity and temperature to simulate different types of contrail, but problem was that FG's environmental model gives always 100% RH at high altitudes. I remember you had some kind of contrail thing, so do you have any ideas on how to estimate the real humidity on high altitudes?
Basically you have to retro-engineer it or guess it from the reported clouds. What FG does is take the measured value on the ground an extrapolate it upward - which gives you the condensation altitude of the lowest cloud layer, and then the extrapolation in a standard atmosphere would keep it 100% forever. Obviously in reality it drops below 100% at the upper edge of the layer, but reaches 100% again at the next layer - so the distribution of reported cloud layers gives you a rough indication of what is going on with humidity - but you can't really know or guess what the value is if it is not 100%, and even if there is potentially condensation, it doesn't guarantee that there really is condensation.
It's a fair guess that if you have Cirrus clouds you can have contrails. I'd also assume that if you are in a warmfront pattern, the upper air layers tend to be warmer and more moist - it's these kind of things which you can feed into a heuristics to give you some indication of what's plausible.