RHI cross section of through a severe thunderstorm at 0000:01 UTC 13 May 1995. Radar reflectivity and Doppler velocity are shown on the top and bottom of the figure, respectively. White arrow denotes the location where the CBL (as depicted by clear-air return) appears to be deepening. Range rings and azimuths are every 10 km and 30 degrees ,respectively. Schematic diagram of the flow patterns is shown in the middle of the figure. The gray shading in the schematic represents reflectivities greater than 15 DBZ.

This supercell storm produced softball size hail but not a tornado. What we emphasis here is not on the storm, but on the inflow region feeding into the storm as shown by the white arrow. You can see the Convective Boundary Layer(CBL) appears to be deepening from left to right until it extends into the inflow region of the thunderstorm. The Doppler velocity pattern is coherent from clear-air region to strong updrafts into the storm with Doppler velocities > 40 m/s .