What typically causes wind shear?

Wind shear is primarily caused by temperature differences in the atmosphere, particularly from hot to cold air masses. When warm air rises, it can create areas of low pressure while cooler air sinks, leading to variations in wind speed and direction at different altitudes. This phenomenon is especially common in weather fronts, where warm air meets cold air, leading to turbulent conditions.

Understanding why temperature differences contribute to wind shear is essential in aviation, as changes in wind speed or direction can significantly impact aircraft performance during takeoff and landing. Pilots need to be aware of wind shear conditions to ensure safety and control during flight operations, as it can create sudden changes in airflow that affect the aircraft's ability to maintain stable flight.

Other factors, such as changes in pressure systems or altitude, might influence wind conditions as well, but they are not the primary causes of wind shear, which directly stems from temperature variations.