What do the remarks "CIG 005V008" indicate in a METAR/SPECI report?

The remarks "CIG 005V008" in a METAR/SPECI report specifically indicate that the ceiling is variable between five hundred and eight hundred feet above ground level. The "CIG" refers to "ceiling," and the numbers indicate the height of the cloud base. The notation "005V008" signifies a variability in the ceiling, with the lower limit at five hundred feet and the upper limit at eight hundred feet. This means that the cloud layer or the base of the clouds may fluctuate between these two altitudes, which is valuable information for pilots regarding conditions that may affect flying, such as visibility and altitude requirements for approach and landing.