Vaisala IRIS - RHI Cumulonimbus Example; Figure 21 RHI Cumulonimbus Example

3.15.1 RHI Cumulonimbus Example
For detailed vertical structure, there is no substitute for a good RHI. The following example
shows a cumulonimbus seen with RHI from the southern part of the US in summer.
The RHI shows that this is a powerful, actively growing Cb with top at 13 km (8.1 mi). The
echo over-hang and weak echo region on the right indicates a well-organized strong inflow
and vertical motion, both characteristic of a severe thunderstorm. The reflectivity core (red
is >56 dBZ) indicates a probable hail shaft. An upper level anvil, presumably from another
Cb can be seen close to the radar.
Figure 21 RHI Cumulonimbus Example
IRIS Product and Display User Guide M211319EN-H
66 RESTRICTED