The National Weather Service (NWS)/Cooperative Program for Operational Meteorology, Education and Training (COMET) Case Study Library provides meteorological datasets to for education, research, and training development. Funded by the National Weather Service (NWS) Office of Services, this project is a collaborative venture between the NWS, UCAR's COMET Program, Unidata, and the Joint Office for Science Support (JOSS). The diverse events included in the library provide a wealth of data for development of both on-line and classroom based training exercises.

The cases included in the COMET Case Study library represent challenging forecasting events of both classical weather phenomena and local effects on weather systems. Regional examples of summer-time convection and winter storms have been incorporated to expand the geographical coverage of the library. Supplemental products provided for each case include weather summaries, sample graphics, supplemental data, and laboratory exercises.