Classic British Flight Sim

A bit off the British Aircraft topic but I came across this screenshot on Avsim.com and wondered if anyone can tell me what package is used to generate these weather effects?

http://forum.fsscreenshots.com/dcboard. ... 6333&page=

Thanks

Karl

Jonesey has already replied in your other thread, but it's a poor photoshop attempt.
I get bored of seeing them on the net.

That really is a bad retouch. :huf:

Garry