What type of weather is indicated by a METAR report’s “BR” visibility code?

The visibility code "BR" in a METAR report indicates mist, which is characterized by reduced visibility due to atmospheric conditions. Specifically, "BR" typically refers to visibility of between 5/8 mile to 1 mile, and this condition often occurs in light rain or after rainfall, where moisture in the air creates a hazy effect.

Understanding the definition of "BR" is essential for interpreting METAR reports accurately. This code helps pilots assess the visibility conditions they might encounter both on the ground and in the air, informing them of any potential impacts on flight safety and operations.

In contrast, the other options represent conditions that either specify more severe visibility restrictions or entirely different weather phenomena. For example, "Fog" would actually be indicated by "FG," while heavy rain would more likely be described using related precipitation codes rather than under "BR." Therefore, the identification of "BR" as mist is critical to understand as it distinctly describes a specific level of reduced visibility, informing pilots accordingly.