What type of weather does a TAF primarily focus on?

A Terminal Aerodrome Forecast (TAF) is specifically designed to provide critical information about aeronautical weather conditions for airports over a specified period, typically covering a 24 or 30-hour timeframe. The TAF focuses on weather phenomena that can significantly impact aircraft operations, such as wind direction and speed, visibility, significant weather events like thunderstorms or rain, and cloud cover.

Aeronautical weather is vital for pilots and air traffic control as it helps ensure safe flight operations. The TAF is distinct in its purpose, outlined to assist in aviation decision-making rather than providing general or long-term weather forecasts.

In this context, while surface weather and local atmospheric conditions are aspects of what TAF reports, they are not the primary focus. Long-term forecasts extend beyond the typical duration of a TAF and do not align with the immediate operational needs crucial for aviation engagements. Therefore, focusing on aeronautical weather clearly aligns with the fundamental purpose of TAFs, confirming it as the correct choice.