I've been on a smaller jet where on approach to O'Hare, banking left over the lake, we must've hit a aircraft vortex. We went from maybe 20-30deg bank to somet

I've been on a smaller jet where on approach to O'Hare, banking left over the lake, we must've hit a aircraft vortex. We went from maybe 20-30deg bank to something close to 80 in an instant while simultaneously getting that lovely zero g feeling if falling. Lasted like the article says maybe only a few seconds but I'd be lying if it didn't get my adrenaline going and a few expletives out of me.