In the case of severe weather, what should a pilot do?

Changing course to avoid severe weather is the best practice for pilots. This approach prioritizes safety by steering the aircraft away from potentially hazardous conditions such as turbulence, thunderstorms, or other weather-related phenomena that could compromise the aircraft's stability and the well-being of its occupants.

When faced with severe weather, continuing on the planned route can lead to dangerous situations, as pilots may encounter conditions that exceed the aircraft’s or their own capabilities. Similarly, reducing altitude sharply may actually bring an aircraft into more turbulent air or even into storm cells that are located below the cruising altitude, which could put the aircraft and its passengers in more danger. Increasing speed to navigate through severe weather can be risky as well; it could exacerbate the stresses on the aircraft and increase the likelihood of loss of control in turbulent conditions.

By changing course, pilots can maintain safety, keeping the flight smooth and stable, while effectively managing the risks associated with severe weather. This decision also often aligns with the principle of being proactive in flight planning and decision-making.