This poster will highlight some of the new satellite-based research and development at the Cooperative Institute for Meteorological Satellite Studies (UW-CIMSS) over the past couple of years as applied to tropical cyclones (TC). The topics will include the latest in satellite-derived wind applications and derived products, advances in the Objective Dvorak Technique (ODT), development of Advanced Microwave Sounding Unit (AMSU) techniques for estimating TC intensity, use of diagnostic fields derived from the satellite winds, and satellite data assimilation studies. Each topic will be briefly summarized with examples, and the relevance to TC issues will be highlighted along with a status report on operational transition.