In March 1992, the Natural Environment Research Council's Steering Committee on Hydrological Applications of Weather Radar produced a report proposing a United Kingdom strategy for radar hydrometeorological research during the 1990s. The purpose of the report was to identify both needs and opportunities presented by the availability of weather radar data for basic research. Applications of weather radar, particularly to flood forecasting, are already well-advanced and in operational use within the National Rivers Authority.

The Interagency Research Committee on Hydrological Use of Weather Radar, which replaces the National Environment Research Council (NERC) Committee, has reviewed the topics identified in the strategy report. These are presented for both basic and applied research under headings for four themes. NERC has established a special topic area for HYREX (Hydrological Radar Experiment) to undertake fundamental research in two main areas, the science of weather radar as a remote-sensing device and investigation of the precipitation process and its link with run-off response. Topics which are, or similar to, HYREX projects are labeled (H). The first-priority topics are listed below. Further information, including a brief description of the topics and the list of second-priority topics, is given in the First Report of the Committee, which is available from its secretary, Roger Austin at the Institute of Hydrology, Wallingford, United Kingdom.