Figure 17c: KVNX 4 panel loop (1125 to 1229 UTC) showing Digital VIL (upper left), 1 km Composite Reflectivity (upper right), Layer 2 Max Reflectivity (lower left) and Layer 3 Max Reflectivity (lower right). Once the very strong, elevated reflectivity core (> 60 dBZ above 33,000 ft AGL) developed in the Wichita supercell early on in this loop, the strong reflectivity core was persistent as the supercell tracked across the Wichita Metropolitan area. is the U.S. government's official web portal to all federal, state and local government web resources and services.