Cumulonimbus incus

A cumulonimbus incus (from Latin incusĀ 'anvil'), also called an anvil cloud, is a cumulonimbus cloud that has reached the level of stratospheric stability and has formed the characteristic flat, anvil-shaped top.These clouds are commonly associated with severe weather, including heavy rain, downbursts, and occasionally a tornado.A cumulonimbus incus is a mature thunderstorm cloud generating many dangerous elements.If the correct atmospheric conditions are met, they can grow into a supercell storm.They are capable of producing severe storm conditions for a short amount of time.
Cumulonimbus incus over Africa, seen from the International Space Station
CumulonimbusCapillatusPrecipitationsnow pelletscumulonimbus cloudstratospheric stabilitythunderstormcumulonimbus calvuscumulonimbus capillatusdownburststornadoLightningupdraftflash floodingdownburstTornadoessupercellssupercellsingle-cell thunderstormmulticellular thunderstormgeneraMesosphericNoctilucentStratosphericNacreous polar stratospheric clouds (PSC)Nitric acid and waterpolar stratospheric clouds (PSC)TroposphericCirrus (Ci)SpeciesCirrus castellanus (Ci cas)Cirrus fibratus (Ci fib)Cirrus floccus (Ci flo)Cirrus spissatus (Ci spa)Cirrus uncinus (Ci unc)Cirrus intortus (Ci in)Cirrus vertebratus (Ci ve)Cirrocumulus (Cc)Cirrocumulus castellanus (Cc cas)Cirrocumulus floccus (Cc flo)Cirrocumulus lenticularis (Cc len)Cirrocumulus stratiformis (Cc str)Cirrostratus (Cs)Cirrostratus fibratus (Cs fib)Cirrostratus nebulosus (Cs neb)Altocumulus (Ac)Altocumulus castellanus (Ac cas)Altocumulus floccus (Ac flo)Altocumulus lacunosus (Ac la)Altocumulus lenticularis (Ac len)Altocumulus stratiformis (Ac str)Altocumulus volutus (Ac vol)Altostratus (As)Altostratus undulatusNimbostratus (Ns)Nimbostratus virga (Ns vir)Cumulonimbus (Cb)Cumulonimbus calvus (Cb cal)Cumulonimbus capillatus (Cb cap)Cumulonimbus murus ((mur)Cumulonimbus flumen ((Cb flu)Overshooting topHot towerCumulus (Cu)FractusCumulus humilis (Cu hum)Cumulus mediocris (Cu med)Cumulus congestus (Cu con)Cumulus castellanus (unofficial alternative name for Cu con))HorseshoeTrade wind cumulusStratus (St)Stratus fractus (St fra)Stratus nebulosus (St neb)Stratus silvagenitus (St sil)Stratocumulus (Sc)Stratocumulus castellanus (Sc cas)Stratocumulus floccus (Sc flo)Stratocumulus lenticularis (Sc len)Stratocumulus stratiformis (Sc str)Stratocumulus UndulatusStratocumulus volutus (Sc vol)Arcus ((arc)Tuba ((tub)accessory cloudPileus (pil)Velum (vel)Pannus (pan)Actinoform cloudDuplicatus (du)Lacunosus (la)Opacus (op)Perlucidus (pe)Radiatus (ra)Translucidus (tr)Undulatus (un)Asperitas (asp)Cavum (cav)Fluctus (flu)Mamma (mam)Praecipitatio (pra)Virga (vir)Homogenitus (hogen)