In TAFs, how is the term "overcast" abbreviated?

In Terminal Aerodrome Forecasts (TAFs), the term "overcast" is abbreviated as OVC. This abbreviation is part of the standardized meteorological terms used in aviation weather reports, ensuring clarity and consistency in the communication of weather conditions. The OVC designation indicates that the sky is covered, with clouds obscuring at least 90% of the sky, and it helps pilots and flight planners assess potential weather-related impacts on flight operations.

The other options do not conform to the standard abbreviations used in meteorological reporting. OVCST and OCST do not exist as recognized abbreviations for overcast conditions, and OV is too vague to specifically indicate overcast cloud cover, which is critical information for aviation safety and operational planning.