Chop


A form of turbulence.
  1. Light Chop- Turbulence that causes slight, rapid and somewhat rhythmic bumpiness without appreciable changes in altitude or attitude.
  2. Moderate Chop- Turbulence similar to Light Chop but of greater intensity. It causes rapid bumps or jolts without appreciable changes in aircraft altitude or attitude.

Source: Pilot Contoller Glossary (PCG)


See also: