What does BR indicate in METAR terms?

In METAR aviation weather reports, "BR" is the code that stands for mist. Mist is characterized by visibility that is reduced to between 5/8 mile (1 kilometer) and 7 miles (11 kilometers) due to the presence of water droplets in the air, but it is less dense than fog, which has more significant visibility restrictions. Understanding these specific weather terms is crucial for aviation operations, as they can impact flight safety, navigation, and decision-making for pilots and dispatchers.

The other options, while related to weather conditions, refer to more specific phenomena. Heavy rain is indicated by "RA," freezing rain uses the code "ZR," and ground fog is designated as "FG." Being able to identify and differentiate between these terms ensures accurate interpretation of weather reports, which is essential for flight planning and operational safety.