What are the levels of turbulence?

• A. Light
• B. Moderate
• C. Light, Moderate and Severe
• D. Severe

Answer: (C)

Turbulence is described by how strong it feels, which guides safety actions on board. In standard aviation practice, the practical scale has three levels: light, moderate, and severe. Light turbulence causes only a slight, barely noticeable jostle—loose items may rattle but you can still move around with minimal disruption. Moderate turbulence is more noticeable, with clear changes in altitude or attitude and unsecured items moving; it often requires passengers to be seated with belts fastened and items secured. Severe turbulence involves strong, abrupt changes that can cause injuries if passengers or crew aren’t restrained, so the highest level of precautions is taken. Extreme turbulence is rare and not part of the typical three-tier scale used in everyday operations. So, the best answer reflects these three commonly used levels.