So what happened? 23 March 2019

While you may have found other interesting things, here's what the case designer saw:
As the first loops end there are two distinct regions of cumulus near OKC. To the east, the have a smoother texture, indicating a cap that is not breaking. To the west and northwest, the look more textured or agitated, and at the end of the RGB they appear to be developing into towers as the first hints of glaciation appear in the RGB. CAPE, however, was not too helpful due to the clouds, so the all-sky CAPE Scott Lindstrom talked about would have been more useful.

Loops of ABI bands, true color product, and RGB: (links to mp4s)
Band 1
Band 2
Band 3
Band 4
Band 5
Band 6
Band 7
Band 8
Band 9
Band 10
Band 11
Band 12
Band 13
Band 14
Band 15
Band 16

True color loop

Daytime Cloud Phase Distinction RGB

CAPE

ABI Bands 2 and 13 at high resolution over OKC

Satellite Liaison Blog entry on this case

So what happened? 23 March 2019

Original loops: