Cold Night

I have always been a good story starter, but can't seem to finish anything.
A friend and I challenged each other to write something new, here is the beginning of mine.

She'd seen it before, in a dream, The rain poured in sheets outside. The sky was as dark as a moonless night. Madi paid extra careful attention as she drove down the county line dirt road. Her headlights reflected brightly off the mirror-like rain. It had been a long time since it rained like this in Central Texas.
Two months before Madi had awoke in the middle of the night in a cold sweat. The dream she'd had chilled her to the bone. The last thing she could recall was sliding off a flooded muddy road and rolling to a stop in the middle of a grassy field. That alone wouldn't have frightened Madi, so there must have been something else. Something so frightening that she'd blocked it from her concious mind.
Now as she drove, the last few moments of her dream seemed to be realized. But she continued to drive, feeling foolish for thinking she was some sort of psychic. Madi Stephens, the fortune teller. The thought made her laugh.