What is the coverage area for a TAF?

The Terminal Aerodrome Forecast (TAF) is specifically designed to provide weather information for the area around an airport that is critical for flight operations. The coverage area for a TAF typically extends out to 5 statute miles from the center of an airport's runway complex. This range is appropriate for the purpose of giving pilots relevant weather details for takeoff, landing, and other nearby operations that are essential for maintaining safety and efficiency in flight operations. The forecast includes information about expected wind, visibility, precipitation, and significant weather changes within that vicinity.

Other options suggest coverage areas that do not align with standard practices for TAF issuance. For example, a coverage area of 10 miles from the airport boundary or 20 miles around major city centers may indicate broader regional weather impacts rather than the specific terminal weather needed for pilots operating closely around an airport.