Which phenomenon is NOT typically associated with wind shear?

Wind shear refers to a sudden change in wind speed or direction with altitude, and it can have significant effects on aircraft performance, particularly during takeoff and landing. The phenomenon most typically associated with wind shear includes more dynamic and turbulent conditions, such as those created by thunderstorms, which can produce significant downdrafts and rapid changes in wind direction.

Gentle breezes, on the other hand, are characterized by relatively uniform wind flow and lack the abrupt changes associated with wind shear. They do not create the turbulent conditions that are often present in situations involving temperature inversions, thunderstorms, or frontal systems, which can all lead to significant wind shear.

Temperature inversions can cause wind shear by trapping cool air near the surface and allowing warmer air aloft, creating a vertical wind gradient. Thunderstorms can produce dramatic wind shifts, with outflow boundaries causing sudden changes in wind speed and direction. Frontal systems can also create wind shear as the boundary between different air masses often leads to varying wind conditions at different altitudes. Thus, gentle breezes do not contribute to the complex and potentially hazardous wind shear phenomena observed in aviation.