Cumulus humilis
Cumulus congestus and pileus
Heavy cumulus in a complex sky
Cumulonimbus calvus
Cumulonimbus with an anvil
Cumulonimbus near the zenith
Stratocumulus vesperalis
Stratocumulus cumulogenitus
Stratocumulus translucidus
Stratocumulus becoming stratus
Stratus
Low ragged clouds beneath a sheet
Cumulus below stratocumulus
Convection penetrating stratocumulus
Convective clouds and low fragments
An extensive base with arcus
Altostratus translucidus
Thick altostratus
Altocumulus in a regular layer
Lenticular altocumulus patches
Altocumulus patches in dissolution
Altocumulus with virga
Altocumulus in parallel bands
A pavement of altocumulus
Altocumulus spreading from cumulus
Altocumulus below altostratus
Altocumulus with a lower veil
Altocumulus opacus
Altocumulus castellatus
Altocumulus floccus
A complex sky of middle clouds
Superposed middle layers and veils
Cirrus filosus
Cirrus from an anvil
Dense, frayed cirrus
Cirrus with hooks and tufts
Cirrus joining cirrostratus
Cirrostratus with a halo
A cirrostratus veil across the sky
Cirrostratus with a clear edge
Cirrocumulus associated with cirrus
Pileus detail
Photograph 2
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