Question 6
Domain 2: FAA Part 107 WeatherWhat does the METAR code "2CU050" in remarks indicate?
Correct answer: A
Explanation
In METAR remarks, cloud amount is reported in oktas and cloud type by abbreviation. "2CU050" means 2 oktas of cumulus clouds with a cloud base at 5,000 feet, since "CU" denotes cumulus and "050" indicates 5,000 feet.
Why each option is right or wrong
A. 2 oktas cumulus at 5000 feet
In the METAR remarks section, cloud groups use the format of amount in oktas, cloud type abbreviation, and cloud base height in hundreds of feet above aerodrome level. Here, the leading "2" denotes 2 oktas, "CU" is the standard abbreviation for cumulus, and "050" means 5,000 feet (50 × 100 ft).
B. 2 cumulonimbus clouds at 500 feet
C. 2 octas coverage, ceiling unlimited at 5000 feet
D. Second cloud layer cumulus at 500 feet