I used the observations at Goodland, KS (57F/56F at 871mb 20 UTC) leading up to the tornado
since Goodland is in the inflow of the tornado. Conditions in Goodland were nearly saturated and it was likely warmer
may have been warmer to the west and southwest. 700mb/500mb temperatures were 0C/-19C based on
18 UTC and  00 UTC reanalysis. This information gives -5/-8.5 lifted indices at 700/500mb.