FAA Ground School Practice Test

What does the remarks section for KMDW with RAB35 indicate?

1. Rain ceased at 1835Z

2. Rain began at 1835Z

3. Fog was reported at 1835Z

4. Heavy winds were noted at 1835Z

The correct answer is: Rain began at 1835Z

The remarks section for a METAR report, such as the one for KMDW indicating "RAB35," specifically refers to precipitation-related information. The "RA" in this notation denotes that rain has been recorded, and the "B35" designates the time when the rain began, with the "B" standing for "begin." Therefore, "RAB35" means that rain commenced at 1835Z (UTC) at that airport location. Understanding the format of the METAR remarks section is crucial, as it provides pilots and meteorologists with concise, relevant information on weather changes and events that can impact aviation operations. This highlights the necessity of being well-versed in interpreting these codes to ensure accurate decision-making based on current weather conditions.