Joseph Sienkiewicz retired as the Chief of the Ocean Applications Branch of the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Ocean Prediction Center (OPC). The OPC has international responsibility for weather warnings and forecasts for large portions of the North Atlantic and North Pacific. Joe has worked in operational marine meteorology with NOAA for over 30 years. His professional interests include using satellite-derived information to improve marine weather forecasts, explosively developing storms, and applying weather information in marine operations. Mr. Sienkiewicz is a graduate of the State University of New York Maritime College (B.S.) and the University of Washington (M.S.).