Point echoes are normally removed from weather radar data to reduce noise associated with small targets such as aircraft. Most aircraft now carry GPS instrumentation and are reporting their positions {lon, lat, height, time} with great accuracy. Such information may be correlated with point echoes observed in individual range cells of a weather radar return. This paper examines the possibility that weather radar point echoes can be correlated to targets with known position, and if so, whether this information can be used to provide useful information on anomalous radar beam propagation.