What is the validity period of a standard TAF?

A standard Terminal Aerodrome Forecast (TAF) is issued for a validity period of 24 hours. This forecast provides critical weather information for pilots and aeronautical operations within a designated terminal area. The 24-hour timeframe is designed to offer pertinent weather details that could affect flight planning and safety, including significant weather phenomena such as clouds, visibility, wind, and potential changes in conditions.

The TAF can also be extended with an amendment or follow-up issuance if necessary, but the baseline forecast is standardized to 24 hours to ensure consistent and reliable information for aviation purposes. The other options provide different timeframes, which do not align with the established norm for TAFs, further emphasizing the importance of the 24-hour period in aviation meteorology.