The GPM Ground Validation NOAA UHF 449 Profiler Raw Data SPC Format MC3E dataset was collected during the NASA supported Midlatitude Continental Convective Clouds Experiment (MC3E). The overarching goal was to provide the most complete characterization of convective cloud systems, precipitation, and the environment that has ever been obtained, providing constraints for model cumulus parameterizations and space-based rainfall retrieval algorithms over land that had never before been available. The Ultra High Frequency 449 MHz profiler was one of three NOAA deployed instruments which also included a Parsivel and a 2.8 GHz profiler (S-Band). The 449 MHz profiler raw data files provide estimates of the vertical air motion during precipitation from near the surface to just below the freezing level. The raw 449MGx profiler data consists of uncalibrated Doppler velocity spectra data in units of relative power return. The SPC format requires specialized read software which can be purchased from Vaisala. The same data in netCDF format can be acquired by ordering the GPM Ground Validation NOAA UHF 449 Profiler MC3E dataset.