Which abbreviation indicates a weather condition involving light rain?

The abbreviation that indicates a weather condition involving light rain is "DZ," which stands for "drizzle." Drizzle is characterized by light rain with small droplets, typically lighter than regular rain and often occurring in conditions where clouds are low and visibility may be reduced. Recognizing weather-related abbreviations is crucial for pilots and drone operators, as weather conditions can significantly impact flying safety and operational decisions.

The other abbreviations have different meanings: "DS" typically refers to dust storms, "FC" denotes funnel clouds or tornado activity, and "DU" stands for dust or smoke that can also affect visibility but is not related to rainfall. Understanding these distinctions helps in accurately interpreting weather reports and forecasts pertinent to unmanned aircraft operations.