Mid-level stratocumuliform and stratiform List of cloud types




1 mid-level stratocumuliform , stratiform

1.1 genus altocumulus

1.1.1 mid-level stratocumuliform species


1.2 genus altostratus

1.2.1 species







mid-level stratocumuliform , stratiform

middle cloud forms 2 7 km (6,500-23,000 ft) in temperate latitudes, , may composed of water droplets or ice crystals depending on temperature profile @ altitude range.


genus altocumulus

altocumulus castellanus (v-28)



altocumulus floccus (v-29)



altocumulus lenticularis duplicatus (v-39)



altocumulus stratiformis translucidus undulatus (v-40)



altocumulus stratiformis perlucidus undulatus (v-41) clouds merging altostratus opacus (v-50), higher layer of cirrus fibratus (v-1)



fallstreak hole -altocumulus stratiformis translucidus lacunosus (v-44)


abbreviation: ac


mid-level stratocumuliform clouds of genus altocumulus not associated weather front can still bring precipitation, in form of virga not reach ground. layered forms of altocumulus indicator of limited convective instability, , therefore stratocumuliform in structure.


mid-level stratocumuliform species

altocumulus stratiformis (always dividable opacity-based varieties)

sheets or relatively flat patches of altocumulus.
altocumulus lenticularis (v-26)

lens-shaped middle cloud. includes informal variant altocumulus kelvin–helmholtz cloud, lenticular spiral indicative of severe turbulence.
altocumulus volutus (v27) elongated, tube shaped, horizontal stratocumuliform cloud.
altocumulus castellanus (v-28)

turreted layer cloud.
altocumulus floccus (v29)

tufted cumuliform clouds ragged bases.




stratocumuliform opacity-based varieties

altocumulus stratiformis translucidus (v-30)

translucent altocumulus through sun or moon can seen.
altocumulus stratiformis perlucidus (v-31)

opaque middle clouds translucent breaks.
altocumulus stratiformis opacus (v-32)

opaque altocumulus obscures sun or moon.








stratocumuliform pattern-based variety radiatus

rows of altocumulus appear converge @ horizon; associated stratiformis species.

altocumulus stratiformis translucidus radiatus (v-33)
altocumulus stratiformis perlucidus radiatus (v-34)
altocumulus stratiformis opacus radiatus (v-35)








stratocumuliform pattern-based variety duplicatus

altocumulus in closely spaced layers, 1 above other; associated stratiformis , lenticularis species.

altocumulus stratiformis translucidus duplicatus (v-36)
altocumulus stratiformis perlucidus duplicatus (v-37)
altocumulus stratiformis opacus duplicatus (v-38)
altocumulus lenticularis duplicatus (v-39)








stratocumuliform pattern-based variety undulatus

altocumulus wavy undulating base; associated stratiformis , lenticularis species.

altocumulus stratiformis translucidus undulatus (v-40)
altocumulus stratiformis perlucidus undulatus (v-41)
altocumulus stratiformis opacus undulatus (v-42)
altocumulus lenticularis undulatus (v-43)








pattern-based variety lacunosus

altocumulus circular holes caused localized downdrafts; associated stratiformis , castellanus species (also cumuliform floccus species).






stratocumuliform lacunosus

altocumulus stratiformis translucidus lacunosus (v-44)
altocumulus stratiformis perlucidus lacunosus (v-45)
altocumulus stratiformis opacus lacunosus (v-46)
altocumulus castellanus lacunosus (v-47)
altocumulus floccus lacunosus (v-48)












precipitation-based supplementary feature

virga

altocumulus producing precipitation evaporates before reaching ground; associated species stratiformis, castellanus, , floccus.
















cloud-based supplementary feature

mamma

altocumulus (usually species castellanus) downward facing bubble-like protuberances caused localized downdrafts within cloud.
















genitus mother clouds

altocumulus cumulogenitus
altocumulus cumulonimbogenitus
















mutatus mother clouds

altocumulus cirrocumulomutatus
altocumulus altostratomutatus
altocumulus nimbostratomutatus
altocumulus stratocumulomutatus









genus altostratus

altostratus translucidus (v-49) near top of photo merging altostratus opacus (v-50) near bottom


abbreviation: as


stratiform clouds of genus altostratus form when large convectively stable airmass lifted condensation in middle level of troposphere, along frontal system. altostratus can bring light rain or snow. if precipitation becomes continuous, may thicken nimbostratus can bring precipitation of moderate heavy intensity.


species

no differentiated species (always nebulous).




opacity-based varieties

altostratus translucidus (v-49)

altostratus through sun can seen.
altostratus opacus (v-50)

altostratus blocks out sun.








pattern-based variety radiatus

bands appear converge @ horizon.

altostratus translucidus radiatus (v-51)
altostratus opacus radiatus (v-52)








pattern-based variety duplicatus

altostratus in closely spaced layers, 1 above other.

altostratus translucidus duplicatus (v-53)
altostratus opacus duplicatus (v-54)








pattern-based variety undulatus

altostratus wavy undulating base.

altostratus translucidus undulatus (v-55)
altostratus opacus undulatus (v-56)












precipitation-based supplementary features

virga

accompanied precipitation evaporates before reaching ground. seen opacus varieties.
praecipitatio

produces precipitation reaches ground; associated opacus varieties.
















cloud-based supplementary feature

mamma

altostratus downward facing bubble-like protuberances caused localized downdrafts within cloud.
















accessory cloud

seen opacus varieties

pannus

accompanied ragged lower layer of fractus species clouds forming in precipitation.
















genitus mother clouds

altostratus altocumulogenitus
altostratus cumulonimbogenitus
















mutatus mother clouds

altostratus cirrostratomutatus
altostratus nimbostratomutatus












^ cite error: named reference nws invoked never defined (see page).
^ cite error: named reference cloud atlas invoked never defined (see page).
^ cite error: named reference clouds - species , varieties invoked never defined (see page).
^ cite error: named reference aerographer2012 invoked never defined (see page).
^ cite error: named reference features invoked never defined (see page).






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