[quote=WilsonTurner]
How much of a lesser change might occur if you didn't just create a storm, you just manipulated what was already around you into the area/region's type of storm? Like going to the Easter section of 'Murica, and then using the conditions that are already there to form a tornado?
[/quote]

We can't say for sure. We don't know enough about that science. We're not going to say anything we do not have sufficient facts to support. It might make a mess or it might not. You need someone with more knowledge of meteorological sciences and mechanics to answer this.