What is the typical height range for the bases of middle clouds in the middle latitudes?

Middle clouds, which include altostratus and altocumulus, are typically found at a height range between 6,500 and 23,000 feet above ground level in the middle latitudes. This height range is significant because it distinguishes middle clouds from low clouds, which are found at lower altitudes (generally below 6,500 feet), and from high clouds, which typically occur at altitudes above 20,000 feet.

Understanding this height range is crucial for meteorological assessments and flight operations, as different cloud types indicate varying weather conditions. The presence of middle clouds often suggests deeper moisture in the atmosphere and the potential for weather systems, such as warm fronts. The cloud base height can also affect flight safety and aviation operations, making knowledge of these altitudes important for pilots and meteorologists alike.