What type of precipitation is represented by the abbreviation VA?

The abbreviation "VA" stands for Volcanic Ash, which is a significant type of precipitation that can impact aviation operations. Volcanic ash consists of fine particles expelled during a volcanic eruption, and it can pose serious hazards to aircraft. Understanding this abbreviation is critical for pilots and drone operators, as volcanic ash can reduce visibility, damage engines, and create hazardous flying conditions.

The other options may seem plausible but do not generally have the same relevance in the context of aviation. For instance, "Variable Atmosphere," "Vapor," and "Very Active" are not recognized standard abbreviations in meteorological communications related to aviation hazards. Thus, recognizing "VA" specifically as Volcanic Ash allows aviation professionals to take appropriate safety measures when encountering such conditions during flight operations.