– FS2004 Thermals Weather Theme flight2000it 20 years ago FS2004 Thermals Weather Theme. A weather theme to go alongside all the others in the list for gliding. You will find a greater amount of lift over the darker ground and the gliding gets harder to the north. By Bracken Dawson. 200 Kb – FS2004 Scenery–Thermals France 1– FS2004 Scenery–Hawkesbury Field– FS2004 Weather Themes