[Vortex]

The Altus, OK Radar shows more clearly debris at 7:53am CST.

http://www.rap.ucar.edu/cgi-bin/neilley/NIDS_archive?Radar=FDR&Composite=NONE&Start_date=20030201&Start_time=13&Duration=120&Frequency=0&Parameter=0

[weegee]

I see what you mean about 7:53. There is the red/orange/yellow rating that the other radars showed (I would assume the colors would tend to the same values and I have seen shots from Dallas, Austin, Houston, and one other city).

Since the spacing is 10minute snapshots and at such a distance, it doesn't give me a good enough image to comment further, but I appreciate the link.