NUCAPS data points from a polar orbiting NOAA-20 pass matched up with clear skies.  The following NUCAPS profiles were from the extreme southwest part of Missouri.

Unmodified NUCAPS profile from southwest Missouri, well south of Springfield.  Surface dewpoint was estimated at 57-58 F.  MUCAPE only up to 600 J/kg, with MLCAPE of 500 J/kg.

Modified NUCAPS data points from a NOAA-20 pass. Note data void through central Missouri….??? 🙁

Modified NUCAPS profile in same location as the unmodified sounding.  Surface dewpoint was estimated at 67-68 F.   High MUCAPE up to 3500 J/kg, with MLCAPE at 2900 J/kg.

Observed sounding from Springfield, MO at 18Z.  MUCAPE is 2500 J/kg, mixed layer down to 1000 J/kg.  The surface dewpoint was about the same as that of the modified NUCAPS. But the difference in MU/MLCAPE is significant.  I think the modified NUCAPS added value over the unmodified. Unfortunately, it seems a little overdone.  With that said, the instability probably increased between the observed sounding time of 18Z and the satellite pass near 1920Z.  An MUCAPE closer to 3000 J/kg is probably not too far off — maybe by ~500 J/kg. -Roy