My tornado theory:

I've noticed that when ever I see a news story about a 
serious tornado hitting the midwest, there is invariably 
footage of a ripped up mobile home park.

Rarely, by comparison, do these tornados strike 
permanent structures.  I began searching for a cause.  
Why would tornados always home in on trailer parks?  
Metal in the trailers?  I don't think so, there isn't a known 
magnetic force that acts on air, and much of a mobile 
home is made of aluminum, an non-ferrous metal.

I started looking for another connecting commonality, and 
then I found it!  There is a physical structure common to 
trailer parks that actually encourages the formation of 
funnel clouds, and from there tornados.  If only these 
structures could be changed appropriately, hundreds of 
lives could be saved every year.  Unfortunately, I think 
they are too ingrained in midwest society.  It would be like 
trying to tell people not to build new buildings on the sites 
where old ones were destroyed in the 1906 and 1989 
San Fransisco earthquakes, even though the damage 
patterns for both were nearly identical.

You see, I discovered that a vortex is formed by two 
intersecting air flows, one from under the chassis, and 
one ever the top, andgled down by the spoiler on the 
back of a Camero that is up on blocks!  So far I have 
never seen a trailer park that does not have a Camero up 
on blocks, so I am convinced it must be the connecting 
factor.