What does BCFG represent on a METAR?

BCFG on a METAR report stands for "patchy fog." In aviation weather reporting, METARs are used to provide essential information about current weather conditions at airports. When "BCFG" is included in a METAR, it specifically indicates that there are areas of reduced visibility due to fog, but it is not uniformly dense across the entire reporting area; instead, it appears in patches or localized areas. This can significantly impact flight operations and the visibility experienced by pilots.

The other options refer to different phenomena that would not be indicated by BCFG. For instance, drifting snow or blowing spray would typically be reported using different codes that denote their specific effects on visibility or surface conditions. Hail, being a solid precipitation type, would not be included in the same manner as fog. Understanding these specific designations helps pilots and dispatchers make informed decisions based on current weather conditions.