What action should you take to avoid turbulence if you notice a rise in temperature while flying through a jetstream?

To avoid turbulence in the presence of a jet stream, climbing is the most effective action, especially if you notice a rise in temperature. This phenomenon can indicate that the aircraft is encountering warmer air, which is often associated with turbulence as planes transition from cooler to warmer air masses.

When flying near a jet stream, you may encounter clear air turbulence, which is typically more intense around the edges of the jet stream. By climbing to a higher altitude, you can potentially escape the turbulent conditions that are prevalent within the jet stream itself. Additionally, climbing may help you access smoother air above or to the side of the turbulent zone, improving passenger comfort and safety.

Maintaining altitude might keep you in the same turbulent air, while descending might bring you into more turbulence as well, depending on the atmospheric conditions below. Changing course could help you avoid areas of turbulence, but it might not be as effective as climbing, which directly addresses the issue of turbulence associated with the jet stream and temperature variations.