Don't think its anything anomalous or otherwordly but its certainly looks a bit odd:
It may have more to do with subjective interpetation and freak atmospheric weather conditions but its certainly worth a look.
Any Lenticular,circumhorizon,mammatus or nancreous cloud experts out there?
I believe the general consensus was that somehow there was a reflection off of that antenna on the house right by the image. I agree that the shape
is almost exact between the two.