Tornado Alley is a cancelled action game that was in development by Atomic Planet in 2002 / 2003 for the Playstation 2, GameCube and Xbox. As we can read from the official press release, in the game the player would had to take control of one of the most powerful forces of Mother Nature, a Tornado, and guide it to do as much damage as possible, without running out of wind power.
To keep the twister alive we would had to follow the contours of the landscape, watching for thermals and building up the power of the cyclone with the right balance of warm and cold air. Cars and trailers could have been picked up to give ammunition to the vortex, to be churned around inside before being spat out with huge destructive force. Probably the gameplay would have been somehow similar to Katamari Damacy and Thornado (DS), but even with this interesting concept, the project was never released for unknow reasons.