When visibility is observed between two reportable values, which value is reported?

When visibility is observed to be between two reportable values, the correct action is to report the lower of the two values. This practice is rooted in the principles of meteorological reporting, which prioritize safety and accuracy for navigation and aviation. By reporting the lower value, you provide a more conservative estimate of visibility, helping ensure that any potential hazards associated with impaired visibility are adequately communicated.

In meteorology, particularly for aviation and other high-stakes operations, using the lower visibility value helps mitigate risks by preparing pilots and other personnel for the most challenging conditions they might face. This aligns with the goal of maintaining safety standards in environments where visibility can significantly impact operations.

Regarding the other options, reporting the higher value could lead to a false sense of security, potentially endangering safety. The average could misrepresent the visibility conditions, while reporting both values separately may create confusion and complicate the decision-making process for those relying on accurate weather information. Thus, prioritizing the lower value serves the practical needs of those utilizing weather reports in real-time situations.