Certified Flight Instructor (CFI) Practice Exam

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What is the meaning of "PY" in METAR terminology?

Spray
Precipitation
Patches of fog
Snow

The correct answer is: Spray

In METAR terminology, "PY" stands for "Spray." This code is used to describe the presence of spray, which may occur over bodies of water where wind causes waves to break and send water droplets into the air. This type of information is particularly relevant to pilots as it can influence visibility and potentially impact flight operations in coastal or over-water environments. Understanding the specific meanings of METAR codes is essential for interpreting weather reports accurately. While other options refer to different weather phenomena, "PY" distinctly identifies spray, making it crucial for accurate weather assessments for aviation purposes.