What defines "low visibility" within TAF standards?

In TAF standards, "low visibility" is defined as visibility less than 3 statute miles. This threshold is crucial for pilots and air traffic controllers as it significantly impacts aircraft operations, including takeoffs and landings. When visibility falls below this level, it raises concerns about the safety of navigation and the ability to see and avoid other aircraft or obstacles.

Visibility at or below this limit can result from various weather conditions such as fog, heavy rain, or snow, necessitating special attention to operational procedures and flight rules. By maintaining this specific threshold, TAF ensures a consistent standard for assessing flight safety in reduced visibility conditions, enabling pilots to make informed decisions regarding their flight plans.

Understanding this definition helps aviation professionals ensure they adhere to safety regulations and make timely adjustments based on visibility conditions, ultimately enhancing overall flight safety.