What do lenticular clouds typically indicate?

Lenticular clouds are often associated with specific atmospheric conditions that indicate turbulence and potential downdrafts, particularly in mountainous areas. These clouds form when moist air flows over a mountain or a ridge, creating a wave pattern. As the air rises and cools, it condenses into the characteristic lens-shaped clouds.

When lenticular clouds are present, it typically means that there is significant wind shear or turbulence in the area. These clouds can also signal the presence of strong winds aloft and turbulence associated with these changes in air pressure. Pilots should be particularly cautious when flying near lenticular clouds, as they can indicate powerful downdrafts and potentially hazardous flying conditions, especially for small aircraft.

In contrast, other choices suggest conditions that are not generally associated with lenticular cloud formations. For instance, calm weather with clear skies, low visibility and foggy conditions, or approaching storms do not accurately characterize the conditions indicated by lenticular clouds, which are most often linked to windy and turbulent scenarios.