Bright band echo from 14 February 1990 at Kansas City, Missouri. Reflectivity is on the right, radial velocity on the left. The white circle on the reflectivity image is the bright band where snow above (farther from the radar) is melting to for rain (inside, closer to the radar). The enhanced reflectivity is caused by large, low reflectivity snow melting, turning to water (which is more reflective) that falls faster, reducing the reflectivity.
The velocity image shows winds from the east near the surface (i.e., near the radar). Higher up the winds are from the southwest. Winds are aliased in both the low-level region (only slightly) and higher up, where winds are as fast as 30 m/s (about 60 mi/hr).