This handbook consolidates weather information from six FAA weather-related advisory circulars (AC) into one useful publication. The following ACs were cancelled and replaced by this handbook: AC 00-06, Aviation Weather, AC 00-24, Thunderstorms, AC 00-30, Clear Air Turbulence Avoidance, AC 00-45, Aviation Weather Services, AC 00-54, Pilot Windshear Guide, and AC 00-57, Hazardous Mountain Winds, The FAA designed the 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. Federal Aviation Administration is the national aviation authority of the United States. It regulates and oversees the aviation industry, pilot licensing, and airspace with the goal of providing "the safest, most efficient aerospace system in the world.

".