Composite image "PM" from a volume scan with maximum reflectivity

At 16:00 UTC there is a bow echo at the front side of this rain band, which is typical of thunderstorms with strong gusts. Only the radar can give the exact position and movement of this thunderstorm line. The colors represent reflectivity in dBZ.

Radar composite image PM with Satellite image IR10.8, 31 May 2013, 00 UTC - 23 UTC (Source: DWD)