A national facility a three-system ground-based mobile radar fleet, the Doppler On Wheels (DOWs). The three systems include two mobile X-band Doppler on Wheels and the 6 to 12 beam "Rapid Scan DOW". These radar systems have participated in research projects that have covered a broad range of topics including individual cumulus cloud studies, orographic precipitation and dynamics, hydrologic studies, fire weather investigations, severe convective storms and tropical cyclones at landfall. DOWs can be frequently utilized on site for educational activities, such as being part of a university atmospheric instrumentation courses. The DOWs can be operated by students with minimal, often remote, technical supervision. The DOWs add significantly to the facility infrastructure of the atmospheric sciences community.