True when the visibility value has an M (minus) prefix, indicating "less than" the sensor minimum (e.g. M0200FT).
True when the visibility value has a P (plus) prefix, indicating "greater than" the sensor maximum (e.g. P6000FT).
OptionalisTrue when the variable max value has a P (plus) prefix (e.g. VP6000FT).
Runway designator (e.g. "27L", "09R", "15").
OptionaltrendVisibility trend indicator, if reported.
OptionalvariableUpper bound of variable RVR in feet (e.g. 3000 in R27R/1800V3000FT).
Reported RVR visibility in feet. When variable, this is the lower bound.
Runway Visual Range (RVR) report for a specific runway. Reports the horizontal visibility along a runway measured by transmissometers.