Problem-based learning experiences that extend at least two weeks provide an opportunity for students to investigate a real-world problem while learning science content and skills in an exciting way. In this article, students are challenged by the president of the United States to serve as employees of the Federal Emergency Management Agency to plan, construct, and test models of cities exposed to a series of simulated hurricane and tornado conditions. As a culminating assessment, students develop and videotape public service announcements covering meteorological concepts. They then plan and construct a prototype model city capable of withstanding any natural disasters in any given area of the United States, which is then exposed to an unknown simulated weather event to determine if they have successfully met the president's challenge. Upon conclusion of the event, the junior weather tamers are ordained "masters of disaster" and presented certificates of honor from the president. (Contains 3 figures.)