Realtime Tornado Generator
This is geometry nodes modifier setup, not an addon.
Easiest way to use it in your projects is to copy one of the Tornado objects (CTRL+C) and paste (CTRL+V) it into your project. Then customize it to your needs.
Cycles
In cycles you may have black artefacts like this:
To fix it increase Transparent light bounce count under Light Paths tab:
(The higher the layer count in your tornado, the higher this parameter needs to be.)
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