Which statement about WX on planning documents is accurate?

• A. WX indicates wind speed only
• B. WX indicates forecast details only
• C. WX indicates weather advisories only
• D. WX denotes weather information used in planning and in-flight decisions

Answer: (D)

WX on planning documents represents weather information used to plan the flight and to support in‑flight decision making. It isn’t limited to just wind speed, forecasts, or advisories alone. It includes current conditions, forecast data, and significant weather that can affect routing, altitude, fuel planning, and operations—such as winds aloft, visibility, cloud cover, precipitation, icing, turbulence, and convective activity as indicated by weather reports and advisories. Having WX on planning documents lets crews anticipate weather impacts before departure and adjust the flight path and decisions while en route.