What prefix is associated with high-level clouds?

High-level clouds are characterized by their formation at higher altitudes, typically above 20,000 feet. The prefix that indicates high-level cloud types is “cirro.” This prefix comes from the Latin word "cirrus," which means "curl" or "fringe," and is used to describe clouds that appear wispy or hair-like.

Cirro clouds, such as cirrus, cirrostratus, and cirrocumulus, are composed primarily of ice crystals due to the low temperatures at these elevations. Understanding this prefix helps meteorologists classify clouds based on their altitude and composition, which is essential in weather prediction and analysis. The other prefixes relate to clouds at different altitudes or with different characteristics, but "cirro" distinctly identifies those found at high elevations.