suitable ways to make decent skydome, thunder?

[ronnie42]

Firstly I don't mean lights.

So yep just wondering if anyone knows anything about it, I was following some Rain tutorials, wondering how to make thunder effects.

[nbullard]

Are you talking about sound then?

[ronnie42]

No I was talking about visual effects.

[nbullard]

Ok, was just asking cause you said thunder, but I would suggest looking at the UDKs Day and Night Map, as I remember they have a lightning effect in the sky material.