Which type of jet stream is associated with causing greater turbulence?

The type of jet stream that is associated with causing greater turbulence is one that is curving, especially when it is linked to a deep low-pressure trough. This curvature creates significant wind shear, which is the change in wind speed or direction with altitude. When a jet stream curves, it can lead to the development of clear air turbulence, which often occurs at high altitudes where the jet stream is located.

The dynamics of a deep low-pressure trough contribute to the intensified winds in the jet stream, and the interaction between the high-speed air in the jet stream and the slower air surrounding it exacerbates turbulence. Pilots and meteorologists closely monitor these patterns because they can lead to unpredictable and potentially hazardous flying conditions.

In contrast, a straight jet stream that maintains uniform wind speeds is less likely to produce significant turbulence. While a consistent jet stream at high altitudes might mean stable flying conditions, and a stagnant jet stream doesn't induce the wind shear necessary for turbulent activity, the curving jet stream associated with low-pressure systems is the most turbulent scenario.