In movie Sin City the actor says
The wind rises, electric. She's soft and warm and almost weightless. Her perfume is a sweet promise that brings tears to my eyes.
I don't see what electric means here. Does it modify the wind ? Is this an appositive usage here?
Yes, it qualifies the wind, you can read the sentence as: "The wind rises, it is electric."
It is meaning number 3 of the wiktionary definition of electric :
Being emotionally thrilling; electrifying.
Saying that the wind is electric is a way of qualifying the emotions the wind at this particular moment produces on people: it electrifies them, makes them maybe agitated, maybe thrilled, excited...
