This guide is intended to help general aviation (GA) pilots, especially those with relatively little weather-flying experience, develop skills in obtaining appropriate weather information, interpreting the data in the context of a specific flight, and applying the information and analysis to make safe weather flying decisions. It has been developed with assistance and contributions from a number of weather experts, aviation researchers, air traffic controllers, and general aviation instructors and pilots. Special thanks are due to Dr. Dennis Beringer and Dr. William Knecht of the FAA's Civil Aviation Medical Institute (CAMI); Dr. Michael Crognale, Department of Psychology and Biomedical Engineering, University of Nevada/Reno; Dr. Douglas Wiegmann, Institute of Aviation, University of Illinois; Dr. B.L. Beard and Colleen Geven of the NASA Ames Research Center; Dr. Paul Craig, Middle Tennessee State University; Paul Fiduccia, Small Aircraft Manufacturers Association; Max Trescott, SJFlight; Arlynn McMahon, Aero-Tech Inc.; Roger Sharp, Cessna Pilot Centers; Anthony Werner and Jim Mowery, Jeppesen-Sanderson; Howard Stoodley, Manassas Aviation Center; Dan Hoefert; Lawrence Cole, Human Factors Research and Engineering Scientific and Technical Advisor, FAA; Ron Galbraith, FAA Air Traffic Controller, Denver ARTCC; Michael Lenz, FAA General Aviation Certification and Operations Branch, Christine Soucy, FAA Office of Accident Investigation; Dr. Rich Adams, Engineering Psychologist, FAA Flight Standard Service; and Dr. William K. Krebs, Human Factors Research and Engineering Scientific and Technical Advisor, FAA.