"The FAA designed Aviation Weather Handbook as a technical reference for all who operate in the National Aerospace System (NAS). Pilots, dispatchers, and operators will find this handbook a valuable resource for flight planning and decision making. With a complete guide to the United States' aviation weather program, products, and services, it also documents weather theory and its application to aviation. The objective of this handbook is to help the pilot and operator understand the basics of weather, aviation weather hazards, and aviation weather products. Beginners and advanced pilots alike will find the Aviation Weather Handbook to be a critical resource for all aviation weather subjects." --