Turbulence

Whether the turbulence occurred in clouds or clear air (CAT). 2. Intensity Classifications

This report outlines the essential components, classifications, and standard procedures for reporting aviation turbulence based on FAA and international aviation standards. turbulence

Turbulence is officially categorized into four intensity levels based on its effect on the aircraft and occupants: Aircraft Reaction Occupant/Cabin Effect Slight, erratic changes in altitude or attitude. Slight strain against seat belts; liquids may splash. Moderate More intense changes; aircraft remains in positive control. Definite strain against belts; unsecured objects dislodge. Severe Large, abrupt changes; momentary loss of control. Whether the turbulence occurred in clouds or clear air (CAT)

Crucial because "severe" turbulence for a small Cessna might only be "light" for a large Airbus A380 . Definite strain against belts; unsecured objects dislodge

The Flight Level (FL) or altitude range where the air is disturbed.

Understanding the cause helps in formulating an accurate report and choosing an avoidance strategy: Chapter 8. FAA Weather Services