Just to be clear the mobile Doppler's don't only study tornadoes. Having multiple Dopplers allow you to derive the wind vector. This data is can be so small scale it can't be injected by forecast models, and also the postprocessing takes a long time. 3d wind fields provide an enormous way to verify very fine scale simulations. While I work in CFD, and don't as often touch meteorology these days in my research, I could imagine that Orf would find the data valuable to compare his models against. This could inform things that you may not initially suspect, like what is the appropriate rain hail size distributions assumed in my model, how could that then be parameterized back to larger scales for the forecasting models? Just kinda throwing ideas out there, but 3d wind fields with vectors would be gold to me at certain points in my research past.