What does the METAR observation of EDAD indicate about visibility?

The observation for EDAD indicates that visibility is affected by the presence of light rain and mist, which is a key detail for pilots and air traffic controllers. When METAR reports visibility reduced by these weather conditions, it implies that the visibility is not at optimal levels for flying or for ground operations.

In METAR reports, such conditions are typically denoted by specific terms or abbreviations indicating reduced visibility. Light rain and mist can severely impact how far a pilot or a vehicle operator can see, which is vital for safety during takeoff and landing. This understanding is crucial for operational planning in aviation, where visibility plays a significant role in flight safety.

Other choices, such as unrestricted visibility or specific distances like 6000 meters, fail to account for the implications of adverse weather conditions like light rain and mist. Therefore, the recognition that visibility is impaired by these factors reinforces the importance of situational awareness in aviation.