Whether the turbulence occurred in clouds or clear air (CAT). 2. Intensity Classifications
Aircraft is tossed violently; practically impossible to control. Potential for structural damage to the airframe. Reports must also specify how often the bumps occur: Occasional: Less than 1/3 of the time. Intermittent: 1/3 to 2/3 of the time. Continuous: More than 2/3 of the time. 4. Common Types of Turbulence turbulence
This report outlines the essential components, classifications, and standard procedures for reporting aviation turbulence based on FAA and international aviation standards. Whether the turbulence occurred in clouds or clear air (CAT)
Understanding the cause helps in formulating an accurate report and choosing an avoidance strategy: Chapter 8. FAA Weather Services Potential for structural damage to the airframe
The Flight Level (FL) or altitude range where the air is disturbed.
Occupants forced violently against belts; walking is impossible.
Crucial because "severe" turbulence for a small Cessna might only be "light" for a large Airbus A380 .