Oooh, hurricanes! One made of fire, one made of leaves, one made of air, one made of water, maybe one made of rocks, etc.
So, you'd have a swirl of whatever, and if you have time, you could add a little depth to it. Maybe a decent electro-storm, with proper clouds and fork lightning, thunder effect is easy enough to add manually so don't bother with that.
These are fantasy games we're dealing with, good and bad/light and dark feature strongly in a lot of them, so weather based around them? I don't mean screen tints, I'm talking a gale of darkness or divine firestorm, something like that.