What is the standard range of a Terminal Aerodrome Forecast (TAF)?

The standard range of a Terminal Aerodrome Forecast (TAF) is indeed 5 statute miles (SM) from the center of the airport. This forecast is specifically designed to provide weather information relevant to aircraft operations in the vicinity of an airport, allowing pilots to make informed decisions about flight safety and operations.

TAFs cover a 24-hour period, or up to 30 hours for certain international operations, and focus on significant weather changes that could impact arrival and departure routes. The 5 SM range is sufficient to capture weather conditions that may affect the approach or departure phases of flights, which are critical for safe aircraft operations.

Other options, while providing various distance measures, do not align with the established standards for TAF. The specific focus on 5 statute miles allows for ample coverage without being unnecessarily extensive, ensuring that pilots receive pertinent information that reflects conditions most likely to impact their flights.