What condition should be monitored related to turbulence for PIREPs?

The appropriate condition to be monitored related to turbulence for PIREPs (Pilot Reports) is moderate or greater turbulence. When pilots encounter turbulence during flight, they may report their experience to help inform other pilots and air traffic control of the current atmospheric conditions.

Moderate turbulence is defined as changes in altitude or attitude that require the flight crew to make noticeable corrections, while severe turbulence can result in large, abrupt changes in altitude or attitude and can pose a significant hazard to aircraft. Reports of these conditions are crucial for the safety and operational planning of other aircraft in the vicinity, as they provide vital information about the current state of the airspace.

In contrast, minor turbulence, severe calm air, or light winds do not typically warrant a PIREP since they do not present any significant challenge to flight safety or operations. Therefore, monitoring and reporting on moderate or greater turbulence ensures that pilots are kept informed of potentially hazardous conditions that could affect their flights.