Editing Cumulonimbus cloud (section)

==== Supplementary features ====

=====Accessory clouds=====
* [[Arcus cloud|Arcus]] (including [[Arcus cloud#Roll cloud|roll]] and [[Arcus cloud#Shelf cloud|shelf]] clouds): low, horizontal cloud formation associated with the leading edge of thunderstorm [[Outflow (meteorology)|outflow]].<ref>{{cite book|title=National Audubon Society Field Guide to Weather|year=2000|publisher=Alfred A. Knopf|isbn=0-679-40851-7|oclc=56559729|last=Ludlum|first=David McWilliams|page=[https://archive.org/details/audubonsocietyfi00ludl/page/473 473]|url=https://archive.org/details/audubonsocietyfi00ludl/page/473}}</ref>
* [[Fractus cloud|Pannus]]: accompanied by a lower layer of fractus species cloud forming in precipitation.<ref>{{cite encyclopedia|editor-first=Michael|editor-last=Allaby|encyclopedia=A Dictionary of Ecology|title=Pannus|url=http://www.oxfordreference.com/view/10.1093/acref/9780199567669.001.0001/acref-9780199567669-e-4082|edition=4|year=2010|publisher=[[Oxford University Press]]|isbn=9780199567669|access-date=2014-08-10|archive-date=2015-09-24|archive-url=https://web.archive.org/web/20150924120253/http://www.oxfordreference.com/view/10.1093/acref/9780199567669.001.0001/acref-9780199567669-e-4082|url-status=live}}</ref>
* [[Pileus (meteorology)|Pileus]] (species calvus only): small cap-like cloud over parent cumulonimbus.
* [[Cumulonimbus velum|Velum]]: a thin horizontal sheet that forms around the middle of a cumulonimbus.<ref name="Features">{{cite book|editor=World Meteorological Organization|editor-link=World Meteorological Organization|title=Features, International Cloud Atlas|volume=I|year=1975|url=https://archive.org/details/manualonobservat00worl/page/22|pages=[https://archive.org/details/manualonobservat00worl/page/22 22–24]|publisher=Secretariat of the World Meteorological Organization |isbn=92-63-10407-7|access-date=26 August 2014}}</ref>

=====Supplementary features=====
* [[Cumulonimbus incus|Incus]] (species capillatus only): cumulonimbus with flat anvil-like cirriform top caused by wind shear where the rising air currents hit the [[inversion (meteorology)|inversion]] layer at the tropopause.<ref>{{cite web|url=http://epod.usra.edu/blog/2009/08/cumulonimbus-incus.html|title=Cumulonimbus Incus|date=5 August 2009|publisher=Universities Space Research Association|access-date=23 October 2012|archive-date=28 June 2012|archive-url=https://web.archive.org/web/20120628015404/http://epod.usra.edu/blog/2009/08/cumulonimbus-incus.html|url-status=live}}</ref>
* Mamma or [[Mammatus cloud|mammatus]]: consisting of bubble-like protrusions on the underside.
* Tuba: column hanging from the cloud base which can develop into a [[funnel cloud]] or tornado. They are known to drop very low, sometimes just {{convert|20|ft|m|order=flip|0}} above ground level.<ref name="Features"/>
* [[Flanking line (meteorology)|Flanking line]] is a line of small cumulonimbus or cumulus generally associated with severe thunderstorms.
* An [[overshooting top]] is a dome that rises above the thunderstorm; it is associated with severe weather.

=====Precipitation-based supplementary features=====
* [[Rain]]: precipitation that reaches the ground as liquid, often in a [[precipitation shaft]].<ref>{{cite book|first=Storm |last=Dunlop |year=2003 |title=The Weather Identification Handbook |pages=77–78 |publisher=[[The Lyons Press]] |isbn=1585748579}}</ref>
* [[Virga]]: precipitation that evaporates before reaching the ground.<ref name="Features"/>

<gallery mode="packed" heights="150">
File:Rolling-thunder-cloud.jpg|Arcus cloud (shelf cloud) leading a thunderstorm
File:Fly00890 - Flickr - NOAA Photo Library.jpg|Incus with a velum edge
File:Mammatus clouds regina sk june 2012.JPG|Mammatocumulus with drooping pouches
File:Cumulonimbus tuba.jpg|A funnel cloud (tuba) over the Netherlands
File:Anvil shaped cumulus panorama edit.jpg|Flanking line in front of a strong thunderstorm
File:Cumulonimbus13 - NOAA.jpg|An overshooting top is a dome of clouds atop a cumulonimbus
File:Cb virga 1.JPG|Rain evaporating before reaching the ground (virga)
</gallery>