Cirro cumulus December 23, 2018

Cumulus clouds are clouds which have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance. Their name derives from the Latin cumulo-, meaning heap or pile.
Cumulus clouds are low-level clouds, generally less than 2,000 m (6,600 ft) in altitude unless they are the more vertical cumulus congestus form. Cumulus clouds may appear by themselves, in lines, or in clusters.

Cirrus (cloud classification symbol Ci) is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.
This cloud can form at any altitude between 16,500 ft (5.0 km; 3.13 mi) and 45,000 ft (14 km; 8.5 mi) above sea level. The strands of cloud sometimes appear in tufts of a distinctive form referred to by the common name of "mares' tails"

Кучевые облака Cumulus — плотные, днём ярко-белые облака со значительным вертикальным развитием. Связаны с развитием конвекции в нижней и частично средней тропосфере.

Перистые облака — раздельные, тонкие, нитеобразные облака в виде белых тонких волокон или чуть сероватых вытянутых гряд и клочьев, часто имеющие вид бородки пера, обыкновенно белого цвета; иногда располагаются полосами, пересекающими небесный свод подобно меридианам.