Figure 18a: KVNX WSR-88D Reflectivity cross section image at 1159 UTC from the Gibson Ridge GR2AE radar software. The white arrow points to the massive elevated reflectivity core in the supercell of interest which was approaching west Wichita. The purple centroid core was indicative of an expansive area of 60 dBZ reflectivity which can be seen extending to above 30,000 ft AGL. View is looking to the north. With the minus 20 celsius height at approximately 21,700 ft AGL, it can be seen that significant severe hail was probable. is the U.S. government's official web portal to all federal, state and local government web resources and services.