Wind shear occurs due to what condition?

Wind shear refers to a rapid change in wind speed or direction over a short distance in the atmosphere. This phenomenon can significantly impact flight operations, especially when it occurs at low altitudes during takeoff and landing phases. The correct response highlights that wind shear is fundamentally tied to abrupt alterations in either the wind speed or wind direction.

Wind shear can lead to hazardous conditions for aircraft, such as loss of lift or control, making understanding this concept crucial for remote pilots. Recognizing and anticipating occurrences of wind shear can help in making informed decisions regarding flight plans and safety measures.

The other conditions listed do not accurately describe wind shear. While precipitation can affect wind patterns, it is not a direct cause of wind shear. Hence, focusing solely on changes in wind speed or direction effectively captures the essence of what constitutes this atmospheric condition.