Specific values of weather information may be transmitted to the pilot if obtained from?

• A. A properly certificated observer
• B. Another pilot
• C. Air Traffic Manager
• D. Official news reports

Answer: (A)

Weather values used by pilots should come from sources that are officially authorized to observe and report meteorological conditions in a standardized way. A properly certificated observer has formal training and certification to observe weather at a specific location and provide precise, verified values like visibility, ceiling, wind, and temperature. This makes the data reliable for cockpit use and flight planning.

Other sources don’t provide the same level of verified, standardized data. Information from another pilot (a PIREP) is valuable for situational awareness but is a subjective, non-certified observation and may not include all requested parameters. Official news reports aren’t current or validated for aviation use and can be outdated or inaccurate for flight decisions. The Air Traffic Manager is not a direct meteorological data source for pilots.