Does anyone know how to make a really good thunderstorm in fs2002? Or if any software can help??Cheers, Andy

The best way is using a weather generator application that downloads real weather data when there are TRWs in the area of interest and save that data.You can also use an application called Weather Maker (I do not have it and there may be others) that allow you to specify conditions that would generate TRWs such as a hard front passing through an area of hot, humid, unstable air. For that you might need a little understanding of basic meteoroligy such as taught in pilot grouns schools. You can also get inexpensive material for that.