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Main Cloud Types
- Cumulus
- Stratus
- Stratocumulus
- Altocumulus
- Altostratus
- Cirrus
- Cirrocumulus
- Cirrostratus
- Nimbostratus
- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
- Distrail
- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
- Homogenitus
- Horseshoe vortex
- Humilis
- Incus
- Intortus
- Lacunosus
- Lenticularis
- Mamma
- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
- Nacreous
- Nebulosus
- Noctilucent
- Pannus
- Perlucidus
- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
- Spissatus
- Stratiformis
- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
- Halos
- Helic arc
- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
A long range view of an Altocumulus volutus, otherwise known as a Roll cloud, extending northward 50 kilometers. In total, it was reported that this band extended 300 kilometers. This photograph was taken near Newcastle, New South Wales, Australia.
Altocumulus lenticularis that reminded Mike of a prototype of the Starship Enterprise, spotted over Conwy, North Wales
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An approaching storm over Atagohama Central Park, Fukuoka City, Japan
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Crepuscular rays emanating from behind a storm near Taiwan
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Primary and secondary bows with precipitation falling in the distance, spotted near Vermontville, Adirondacks, New York, US
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On the horizon, clouds that look like mountains, spotted from La Turbie, France
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Waves of altocumulus spotted in the morning over Madison, Wisconsin, US
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A large rabbit spotted in the sky over Hancock County, Maine, US
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Stratocumulus spotted over Waipu District, Taichung City, Taiwan
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Back at camp, a thunderstorm approaches Glen Canyon Recreation Area, Utah, US
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Cumulus congestus spotted over Arlington, Virginia, US
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Signs of altocumulus lenticularis over the terrain of Montmirail, Gigondas, Provence, France
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A layer of altocumulus over Imola, Italy
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Cumulus fractus spotted near Fontanelice, Italy
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A storm system spotted during a prior winter over Garrabost, Isle of Lewis, Scotland
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Cumulonimbus spotted near Weston-super-Mare, Somerset, England
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