Which of the following terms refers to a weather event characterized by strong winds and sudden temperature changes?

The term that refers to a weather event characterized by strong winds and sudden temperature changes is a squall. A squall is typically a brief but intense period of wind that can be accompanied by precipitation and rapidly shifting temperatures. This kind of weather phenomenon can cause turbulence, which is particularly important for drone operators to be aware of, as it can significantly affect flight safety and stability.

Understanding squalls is crucial for unmanned aircraft operators when planning flights, since these events can lead to unexpected and hazardous flying conditions. On the other hand, while sandstorms, snow, and volcanic ash events can also affect visibility and flying conditions, they do not specifically encompass the characteristics of strong winds paired with sudden temperature fluctuations in the same way that a squall does.