UNIVERSITY OF UTAH PRECIPITATION FEATURE (PF) DATABASE HAS PROVEN TO BE A USEFUL TOOL IN THE TRMM SCIENCE AND PUBLIC COMMUNITY. THE SUCCESSFUL STUDIES IN THE PAST USINGTHIS DATASET INCLUDE THE RAIN RETRIEVAL VALIDATION STUDIES OF SEVERE WEATHER AND CLIMATE AND MODEL VALIDATION AND DEVELOPMENT. THE GPM WILL BRING A NEW SET OF THEOBSERVATIONS THAT WILL EXTEND OUR UNDERSTANDING OF THE PRECIPITATION PROCESS AND THE PROPERTIES OF THE STORMS ESPECIALLY FROM THE PERSPECTIVE OF THE INDIVIDUAL PRECIPITATION SYSTEMS AFTER IMPROVING THE CURRENT METHODOLOGY OF THE PRECIPITATION FEATURE. THE GPM AND ITS CONSTELLATION SATELLITES WILL PROVIDE THE HIGH TEMPORAL OBSERVATIONS OF THE PRECIPITATION SYSTEMS WITH A GLOBAL COVERAGE. THIS PROVIDES A GREAT OPPORTUNITY TO EXAMINE THE LIFE CYCLES OF PRECIPITATION SYSTEMS IN ADDITION TO STUDY THE PRECIPITATION SYSTEMS FROM THE SNAPSHOTS OF PRECIPITATION FEATURES. THOUGH OUR KNOWLEDGE OF THE CONVECTION AND PRECIPITATION IN THE TROPICS HAVE BEEN IMPROVED GREATLY WITH MORE THAN A DECADE OF TRMM OBSERVATIONS THE DESCRIPTION OF THE MICROPHYSICS IN DIFFERENT TYPES OF THE PRECIPITATION SYSTEMS IS STILL ONE OF THE LARGEST OBSTACLE IN THE DEVELOPMENT OF RAINFALL RETRIEVAL ALGORITHM AND THE UNDERSTANDING OF CONVECTION. THE NEW INFORMATION OF MICROPHYSICS FROM DPR NEEDS TO BE INCORPORATED INTO THE PRECIPITATION FEATURE DEFINITION. WITH MORE THAN TWO DECADES OF THE MICROWAVE OBSERVATIONS INCLUDING THE EARLY SSM/I INSTRUMENTS IT IS POSSIBLE TO START EXAMINING THE INTER-ANNUAL VARIABILITY OF THE PROPERTIES OF THE PRECIPITATION SYSTEMS. MANY QUESTIONS CAN BE ASKED BY EXAMINING THOSE HISTORICAL DATA BY IDENTIFYING THE PRECIPITATION FEATURES.