Driving my Dad’s Grand Cherokee Chief out on a snowy day cutting through drifts in the shoulder to watch them “Poof” over the hood and roof. Came across an extra large drift. Hit it at about 35 and it pulled me in. The passenger side started riding up the drift. I came to a stop at an angle that must have been only a degree or two from tipping the jeep on its side. Turned on the Quadratrack switch in the glovebox and slowly backed down my tracks to flat ground. Never cut drifts after that.