What must a CFII demonstrate regarding weather phenomena according to the PTS?

The requirement for a CFII to demonstrate an ability to interpret meteorological data and explain its implications is crucial for effective teaching and safety in aviation. Weather is a dynamic and significant factor in flight operations, and instructors must be equipped with the necessary skills to analyze various meteorological data, such as METARs, TAFs, and radar outputs.

By interpretating this data, a CFII can assess current and forecasted weather conditions, which directly affect flight safety and decision-making. An instructor's ability to clearly communicate the implications of weather phenomena—such as thunderstorms, turbulence, or icing—ensures that students understand how these factors can impact their flight operations. This knowledge not only helps in practical flight scenarios but also in preparing students for real-world challenges they may encounter as pilot command.

The other choices do not align with the responsibilities of a CFII. Avoiding discussions about weather would leave students unprepared and lacking in critical knowledge. Focusing solely on current weather conditions or only historical patterns would not provide a comprehensive understanding necessary for effective flight planning and operational safety. Therefore, the ability to interpret meteorological data and explain its implications is essential for a CFII.