What is the main purpose of a TAF in aviation?

The main purpose of a Terminal Aerodrome Forecast (TAF) is to inform pilots about potential weather conditions that will affect flight operations at or near an airport over a specified period, typically up to 24 or 30 hours. TAFs are crucial for safe flight planning and decision-making, as they provide essential information about anticipated weather phenomena, such as visibility, wind direction and speed, precipitation, and significant weather changes.

This forecast specifically focuses on conditions that pilots may encounter during takeoff, landing, and while en route to ensure they have the necessary information to make informed choices about their flights. By delivering this timely and critical information, TAFs help enhance safety in aviation, enabling pilots to prepare adequately for the weather conditions they might face. The other options do not reflect the actual function of a TAF, as they misappropriate its role to areas unrelated to flight safety and operational planning.