Cloud heights are reported in increments of hundreds of:

Cloud heights are reported in increments of hundreds of feet because this convention aligns with aviation standards and practices. Feet are the standard unit of measurement for altitude in the United States and many other countries, and using increments of hundreds provides a clear and standardized way to convey important information about cloud bases and tops to pilots and air traffic controllers.

Using feet for cloud height measurements is crucial in aviation, as it provides the precision needed for flight safety and navigation. In terms of reporting, for instance, a cloud base of 2,500 feet would be communicated as “25” in weather reports, indicating it is 2,500 feet above ground level. This format is easily understood and widely utilized in meteorological communications.

Other options like meters may be used in some regions or contexts, but feet is the prevalent unit, particularly in regions where the National Airspace System is in operation. Oktas are a measurement of cloud cover, not height, and yards are not commonly used in aviation. Therefore, feet is the appropriate choice for cloud heights.