IIRC, TWC Has used AR since the unveiling of The Lab. The Lab's floor "opens up" and shows a giant globe that then shows what ever weather event they choose to display. Also, the way The Lab's AR works, is that it uses the circular patterns on the floor as tracking points for the AR. (At least that's how I think it works, I did see a Vimeo Video on it.) Maybe that's how the AR view of a tornado was done?