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Main Cloud Types
- Cumulus
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- Altostratus
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- Cirrocumulus
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
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- Cataractagenitus
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- Cavum (Fallstreak hole)
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- Duplicatus
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- '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 Halo over Ecclefechan, Scotland, UK.
One thought on “Anne Downie”
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An afternoon downpour near Charlo, Montana, US
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In sharply defined rainbows, a set of narrow coloured bands can often be found repeating on the inside of the primary bow. Called supernumerary bows, they add an extra-special dimension to the display and are produced by diffraction as light waves cross each other exiting the raindrops, as seen here over Amsterdam, Netherlands.
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Virga spotted over Torrejon de Ardoz, Spain
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22-degree halo over Doubtful Sound, New Zealand
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Circumzenithal Arc spotted over Northern California, US
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On a journey along deep sand, Lynda's friend, Fayne Connelly, captured this view of the sand and the sky during a trip between the Savuti Plains in Botswana travelling to Zambezi Mubala Campsite on the banks of the Zambezi.
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Undulatus spotted by Dan's friend, John Maltese, from the shore of Lake Pleasant in the southern Adirondacks, Speculator, New York, US
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An elongated version of altocumulus lenticularis spotted over Dunkeld, Scotland
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Mesmerizing iridescence spotted near Blowing Rock, North Carolina, US
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Cumulus congestus over the Atlantic Ocean, viewed from Myrtle Beach, South Carolina, US
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Sunset over Puget Sound near Edmonds, Washington, US
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Cumulus over Seaham, England
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Mammatus (Mamma) following a storm over Wilson, Wyoming, US
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A solitary cloud spotted amidst the blue sky over Goffs Oak, Hertfordshire, England
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Sunset over Kingsthorpe, Northampton, England
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Hi Anne
“Happy Easter” to you – and to all CAS members and the CAS!
I like your photo much. You might like this one of a fascinating photo of Sun & Moon halo – combined, that is.
The caption says it all. Photo comes from NASA’s APOD page:- here is the link:-
http://apod.nasa.gov/apod/ap150403.html
Best wishes and enjoy.
Laurence