What are the types of charts issued for one GFA?

The correct choice encompasses a comprehensive range of atmospheric conditions depicted on the Graphical Area Forecast (GFA). The GFA is designed to provide pilots with vital information on various weather phenomena that can impact flights. By including clouds, weather systems (Wx), icing potential, turbulence, and the freezing level (FZLVL), it offers a complete overview of the conditions that may affect aerodynamically significant parameters during flight operations.

Clouds play a critical role in flight safety and operational planning, affecting visibility and the likelihood of turbulence or icing. Weather information indicates the presence of significant meteorological phenomena such as fronts, storms, and precipitation that could influence route selection and operational safety. Icing forecasts inform pilots of potential ice accumulation on aircraft surfaces, which can drastically impair performance and handling. Turbulence information helps pilots anticipate and prepare for potentially uncomfortable or hazardous flight conditions. The freezing level is crucial for understanding where temperatures drop to the freezing point, which directly relates to icing conditions.

Therefore, the inclusion of all these elements in a single GFA ensures that pilots have access to consolidated, pertinent data to make informed decisions during their flights, making it the most comprehensive and useful option presented.