cumulonimbus
Let an agent explain cumulonimbus clouds and their formation, identify species and features, relay the hazards they produce and safety guidance from meteorological authorities, and distinguish them from cumulus and other clouds.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain cumulonimbus clouds and their formation, identify species and features, relay the hazards they produce and safety guidance from meteorological authorities, and distinguish them from cumulus and other clouds.
A dense, towering cloud of great vertical extent formed by strong convection, with a dark base, a cauliflower-like body and often a flattened anvil top, producing thunderstorms with heavy rain, hail, lightning, strong winds and sometimes tornadoes; cumulonimbus has species and features such as calvus, capillatus, incus and wall clouds, forms from wildfires as pyrocumulonimbus, and is the most energetic cloud type.
What it is for: Not applicable; a cloud type.
It can be explain formation and structure; identify species and features; relay hazards and safety guidance; distinguish from other clouds.
Distinguishing features
Deep convection
Anvil top
Thunderstorm hazards
Species and features
What it looks like
A towering cloud with a dark base and an anvil-shaped top spreading at high altitude.
Physical character
vertical extent: up to about 12-18 km - to the tropopause
updraft speeds: up to about 50 m/s - in severe storms
How it is recognised
Towering convective cloud with anvil
Calvus, capillatus, incus and other features
Cumulus congestus lacks the anvil and precipitation; nimbostratus is layered
Related models
is a kind of - in registry terms
produces - and severe weather
develops from - through convection
is related to - in supercell storms
In practice
Families and kinds
cumulonimbus calvus
cumulonimbus capillatus and incus
supplementary features such as wall clouds, mammatus and flumen
pyrocumulonimbus from fires and eruptions
supercell and multicell storm clouds
Identifiers
WMO cloud atlas Cb abbreviation
Standards and regulation
WMO International Cloud Atlas classification
Aviation weather rules for thunderstorm avoidance
Severe weather warning systems
Failure modes and hazards
Lightning, hail, flash floods and tornadoes
Aviation hazards including turbulence and icing
Confusing with cumulus congestus
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.cumulonimbus
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What cumulonimbus is.
Science.
Formation
Formation.
Formation
Formation.
- How does cumulonimbus form through convection, and what stages does a storm cloud pass through? definition
- Is the cloud cumulonimbus, cumulus congestus or another type? boundary
Features
Species and features.
Features
Features.
- What are the species, varieties and supplementary features such as incus and wall clouds? definition
- Which entry fits the specific feature? action
Hazards Hazards and safety.
Safety.
Weather
Severe weather.
Weather
Weather.
- What hazards do cumulonimbus clouds produce, and what do authorities advise? provenance
- Is the user facing a current storm, which needs official warnings and shelter? boundary
Aviation
Aviation.
Aviation
Aviation.
- Why do aircraft avoid cumulonimbus, and what rules apply? provenance
- Which entry fits aviation weather? action
Special Special forms.
Science.
Pyro
Pyrocumulonimbus.
Pyro
Pyro.
- How do wildfires and eruptions create pyrocumulonimbus, and what effects follow? provenance
- Which entry fits pyrocumulonimbus? action
Supercell
Supercells.
Supercell
Supercell.
- What distinguishes supercell cumulonimbus, and how do they produce tornadoes? provenance
- Which references are standard? provenance
Context Observation and climate.
Context.
Observation
Observation and forecasting.
Observation
Observation.
- How are cumulonimbus clouds observed and forecast with radar and satellites? provenance
- Which entry fits weather radar? action
Climate
Climate role.
Climate
Climate.
- What role do deep convective clouds play in climate, with findings attributed? provenance
- Which sources are cited? provenance
What the second pass must settle
- Should pyrocumulonimbus be a separate entry?
- How should the WMO atlas be linked?
- The registry entry has merged aliases naming species and features; should they be split off?