Certified Flight Instructor (CFI) Practice Exam

Which option describes a condition for a Convective SIGMET?

1. Severe icing that can be expected

2. Embedded thunderstorms affecting flight safety

3. Moderate turbulent air

4. Visibility less than 3 miles

The correct answer is: Embedded thunderstorms affecting flight safety

The correct statement regarding a condition for a Convective SIGMET is that it indicates embedded thunderstorms affecting flight safety. Convective SIGMETs are specifically issued for significant weather phenomena related to convection, which includes thunderstorms, severe turbulence, and areas of heavy precipitation. When thunderstorms are embedded within a cloud layer and not easily identifiable visually, they can pose a serious risk to aircraft due to their unpredictable nature and potential for severe conditions. Recognizing the presence of embedded thunderstorms helps pilots make informed decisions regarding their flight paths and enhances safety by providing critical information about potential hazards. The other options do not correctly define the criteria for a Convective SIGMET. Severe icing, moderate turbulence, and visibility issues can certainly affect flight safety, but they are typically covered by different types of advisories, such as AIRMETs or standard weather advisories, rather than Convective SIGMETs, which are solely focused on severe weather associated with convective activity, particularly thunderstorms.