A cumulonimbus capillatus is a cumulonimbus cloud with dense cirrus clouds which makes the cloud's top appear to contain hair-like structures. The name comes from the Latin, capillatus, meaning "with hair".
|Altitude||Ground to 23,000 m|
|Classification||Family D (Vertically developed)|
|Appearance||Dark-based storm cloud capable of impressive vertical growth with a fibrous upper portion.|
|Precipitation cloud?||Very common Rain, Snow, Snow pellets or Hail, heavy at times|
A cumulonimbus capillatus is a mature and powerful cumulonimbus cloud and can produce multiple severe weather.
- Lightning; this is a strong thunderstorm cloud and it is capable of producing bursts of cloud to ground and cloud to cloud lightning.
- Hail; hailstones may fall from this cloud if it is in a highly unstable environment (which favors a more vigorous storm updraft).
- Heavy rain; the cloud may drop several inches of rain in a short amount of time. This can cause flash flooding.
- Strong wind; gale-force winds from a downburst may occur under this cloud.
- "capillatus". Oxford Reference. Retrieved 2021-10-18.