What is the maximum forecast period for a standard TAF?

The standard TAF, or Terminal Aerodrome Forecast, provides forecasts for aviation needs over a specific period, primarily focused on local weather at an airport. The correct maximum forecast period for a standard TAF is 24 hours. TAFs serve to give pilots and airlines a reliable depiction of expected weather conditions, which is critical for flight planning and safety.

While there are extended TAFs that can be issued for forecasts longer than 24 hours, the core TAF is limited to this duration. This focus means that weather changes that could occur over longer periods are more likely to be less certain and thus not effectively communicated within a standard TAF timeframe. The emphasis is on maintaining accuracy and reliability in the short term, which is essential for operational decisions in aviation.