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What does "SA" mean in the context of METAR?
Sand
Smoke
Rain
Mist
The correct answer is: Sand
In the context of METAR, "SA" stands for "sand," which is used to indicate the presence of sand in the air, often during dust storms or in arid regions where high winds can lift sand particles. METAR is an aviation weather report that provides crucial information for pilots regarding current weather conditions at an airport. Understanding these abbreviations is essential for interpreting the reports correctly and making informed decisions regarding flight safety and operations. The other options referenced in the choices represent different weather phenomena but do not correspond to the abbreviation "SA." Smoke is typically indicated by "FU," rain by "RA," and mist by "BR." Therefore, familiarity with these codes is important for pilots and those in aviation to navigate weather conditions accurately.