Brandon has been comparing the 3DVAR data with the regional radars across OUN, specifically max vorticity from  3DVAR vs radial velocity data.

Below is a screenshot from 2111 UTC including max vorticity of  about 0.01 s^-2 to storm relative velocity (at 1.8, 2.4, and 3.1 degrees elevation) from KTLX:

-K. Kuhlman