| Cumulonimbus capillatus | |
| Image Location: | Thunderstorms Over Eastern Kentucky (14311792357).jpg |
| Abbreviation: | Cb cap. |
| Symbol: | Clouds_CL_9.svg |
| Altitude M: | Ground to 23,000 |
| Altitude Ft: | 75,000 |
| Level: | Vertical |
| Appearance: | Dark-based storm cloud capable of impressive vertical growth, with a fibrous upper portion |
| Precipitation: | Very often rain, snow, snow pellets, or hail; heavy at times |
| Ice Content: | Yes; upper levels frozen |
A cumulonimbus capillatus is a cumulonimbus cloud with dense cirrus clouds above it, making the cloud top appear to contain hair-like structures. The name comes from the Latin word , meaning "with hair".[1]
It is an intermediate stage between cumulonimbus calvus and cumulonimbus incus.
A cumulonimbus capillatus is a mature and powerful cumulonimbus cloud and can produce multiple severe weather.