FAA Ground School Practice Test

What is the valid forecast period for TAF for KMEM?

1. 12th 1200Z to 13th 1800Z

2. 12th 1800Z to 13th 2400Z

3. 12th 0600Z to 13th 0600Z

4. 12th 0000Z to 12th 1800Z

The correct answer is: 12th 1800Z to 13th 2400Z

The correct forecast period for TAF (Terminal Aerodrome Forecast) is defined by specific time frames that provide weather forecasts for airports. TAFs typically cover a 24-hour period or, in some cases, up to 30 hours for significant events. In this scenario, the forecast period from the 12th at 1800Z to the 13th at 2400Z accurately reflects the typical duration and structure of a TAF. This period encompasses a full 30-hour forecast which is acceptable within the guidelines for issuing a TAF, as it begins with a standard time (1800Z) and ends on a specific time the next day (2400Z). Thus, it meets the criteria for a valid and operational forecast, ensuring that pilots and flight planners receive timely and relevant weather information for safe operational decision-making. Other options either do not cover a sufficient forecast range or start/end at times that do not align with the standards established for TAF issuance. Therefore, the choice of 12th 1800Z to 13th 2400Z is the only one that fulfills the requirement for a legally valid TAF forecast period.