When air turbulence becomes dangerous for passengers and crews?

Turbulence is essentially unstable air movement that varies in intensity and can occur with little to no warning. It is often associated with atmospheric pressure, jet streams, air around mountains, or weather fronts. However, clear-air turbulence, which is particularly hazardous, can occur in the absence of any visual cues like clouds, making it difficult to predict and avoid.

When air turbulence becomes dangerous for passengers and crews?
Turbulence is essentially unstable air movement that varies in intensity and can occur with little to no warning. It is often associated with atmospheric pressure, jet streams, air around mountains, or weather fronts. However, clear-air turbulence, which is particularly hazardous, can occur in the absence of any visual cues like clouds, making it difficult to predict and avoid.