Thanks Jimmy - the original heading "possible tornado" was taken on the basis of the original News Ltd article. Well they didn't say possible but I take anything I read there with a grain of salt until confirmed. Which is why I was glad I could find the photos and let more expert minds make a decision.
I did notice the base lowering, but also the sudden change of colour from cloud to dust. Still it would have been interesting to see in person. Hopefully if we are lucky some video will appear somewhere, have been checking youtube but nothing so far.
It is also worth noting there were no SES or other emergency service callouts to the area at the time apart from a possible fire started by a lightning strike, taken from this site
http://www.sacfs.org/paging/ which monitors paging messages on the SA GRN. So any ground impact was either small or if it hit something didn't cause significant damage.
EDIT: I also don't understand some people - this guy saw what he believed was a tornado, now these things aren't that common in Australia - at least in the general public's minds. Even if I wasn't interested in storms I would still have driven that way to see the damage it might have caused and and see if anybody needed help. Putting on my uneducated hat - it's a tornado so it must have caused damage and could have killed people. Because that is what we see from the States. Tornado equals death and damage.
Edit JD: My clarification and changes is to ease any confusion and avoid any drift from the original topic - from a definitions perspective, a tornado is defined as a funnel cloud that makes contact from a cloud to the ground. The dynamics of the landspout tornado make them structurally different than the mesocyclonic tornado we typically associate with in the United States. My comments were not in any way made in response to the article itself or verification from the Bureau.
