Which meteorological phenomenon should you anticipate below cumulus clouds?

• A. A cloud will form
• B. Turbulence
• C. Cumuliform
• D. Lightning and thunder

Answer: (B)

Turbulence is what you should anticipate under cumulus clouds because convection is active there. Cumulus clouds form from warm air rising; as these warm air parcels ascend, they create vertical air motion and mixing at the cloud base. That updraft and the surrounding cooler air interact to produce gusty, irregular winds and eddies. For a drone operator, this means you’ll likely feel bumpy air, sudden changes in wind speed or direction, and possible brief drops or surges in altitude near the cloud edge. Lightning and thunder are typical of much taller storms with cumulonimbus clouds, not ordinary cumulus; describing the cloud as cumuliform is just naming its cloud type, not signaling a specific weather hazard you should expect.