2025 METAR TAF Practice Test – Complete Exam Prep

Question: 1 / 400

In a TAF, what does "MIFG" denote?

Heavy fog

Ground fog

Shallow fog

In a TAF, "MIFG" stands for "shallow fog." This term specifically refers to a layer of fog that is generally not thick enough to significantly reduce visibility below 5/8 mile, but can still obscure horizontal sight. It is important for aviators and meteorologists to recognize shallow fog as it can impact takeoffs and landings, particularly in regards to visibility. The "MI" prefix indicates that the phenomenon is "shallow" or of light intensity, differentiating it from other more severe fog conditions. Understanding these specific notations helps in making informed decisions regarding flight operations and safety measures.

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