When is volcanic ash reported in surface weather observations?

Volcanic ash is reported in surface weather observations whenever it occurs because it can have significant implications for aviation safety and general public health. The presence of volcanic ash can affect air quality, visibility, and can pose a serious hazard to aircraft, as ash can damage engines and reduce visibility. Therefore, timely and accurate reporting of ash is crucial regardless of its concentration or perceived significance. This ensures that all relevant stakeholders, including pilots, air traffic control, and meteorological services, are informed of potentially hazardous conditions, enabling safer navigation and better preparedness for any impact caused by the ash. Reporting volcanic ash as it occurs allows for a consistent approach to monitoring and addressing its effects on the environment and safety.