As of February 16, the Airborne Dual-Frequency Precipitation Radar (APR-2) has completed 9 science flights as part of the Global Precipitation Mission (GPM) Cold Season PrecipitationExperiment (GCPEx). It flies on the NASA DC-8 aircraft out of Bangor, Maine; the GCPEx flights have been coordinated with ground instrumentation in Canada and with other aircrafts. APR-2 has collected high quality data over isolated snow showers, widespread, light snow, and heavier lake-effect snow, as well as cold rain during these flights. The APR-2 data will be used to simulate data for the GPM mission, allowing development and testing of radar rainfall retrieval algorithms for the GPM’s dual-frequency radar, which has the same frequencies and geometry as APR-2.