Certified Flight Instructor (CFI) Practice Exam

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Study for the Certified Flight Instructor Test. Explore multiple-choice questions, detailed explanations, and get fully prepared for your CFI exam! Achieve success with your flight instructor exam by understanding key concepts and honing your technical skills.

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In METAR code, what does "FG" stand for?

Fog
Haze
Dust
Ice Crystals

The correct answer is: Fog

In METAR code, "FG" stands for fog. This abbreviation is used within aviation weather reports to indicate the presence of fog, which is defined as a cloud of tiny water droplets suspended in the air near the Earth's surface, reducing visibility to less than 1 kilometer (or 0.62 miles). The significance of recognizing this code is crucial for pilots, as fog can create significant challenges to visibility and safe navigation during flight operations. The identification of "FG" in METAR directly alerts pilots to potential visibility issues, allowing them to take appropriate precautions. Each of the other options represents different weather phenomena, but they are denoted by different specific codes. Understanding these distinctions ensures that pilots and aviation professionals can accurately interpret METAR reports and make informed decisions regarding flight safety and operational planning.