Which cloud type is not considered as low cloud?

Altocumulus clouds are classified as middle clouds, typically found at altitudes ranging from approximately 2,000 to 7,000 meters (6,500 to 23,000 feet). They form between the lower and higher cloud types and are characterized by white or gray patches with a cotton-like appearance. Unlike low clouds, which include stratus, nimbostratus, and fractostratus, altocumulus clouds do not generally extend to the surface and are positioned higher in the atmosphere.

Low clouds, such as stratus, nimbostratus, and fractostratus, are usually situated below 2,000 meters (6,500 feet) and can contribute to various weather conditions including mist, light rain, or steady precipitation. Understanding these distinctions is important in meteorology, particularly for pilots, as it helps in assessing flight conditions and potential weather hazards.