Cloud layers are the different levels of the atmosphere that clouds form in. The crossword solutions for the term cloud layers are STRATA (6 letters), STRATUS (7 letters), coats (5 letters), HENS (4 letters), and tiered (6 letters). STRATA refers to a layer of clouds that form at high altitudes, while STRATUS clouds are low-level clouds that often appear as a grey blanket. Coats are mid-level clouds that are usually white and fluffy. HENS are a type of cloud that is shaped like a feather. Lastly, tiered clouds are layered clouds that form in multiple levels.