Obi-Wan shouts in surprise, but after a second's spin he thrusts his lightsaber out horizontally to counter the tornado, force it to slow down, using only a working knowledge of angular momentum.

He then pushes himself out at the same horizontal angle, which if nothing else reduces the potential dizziness - he hits the ground on a roll and elaps to his feet, lightsaber in front of him.

Let her come to him then.