Multiple‐parameter radars have now been developed to the point at which they are being used, usually by radio scientists (but not necessarily so), to provide data for the community not primarily committed to radio science (e.g., those concerned with radio engineering, meteorology, hydrology, or aerospace). At the same time, the full potential of such radars is still being explored. Most progress in these applications has been in providing data from which to model conditions on radio paths, but their use for examining the spatial distribution of various hydrometeor forms is no less promising, and, indeed, the two are closely related. This paper examines various practical applications to which multiple‐parameter radars are being