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Optical Effects
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A Halo over Ecclefechan, Scotland, UK.
One thought on “Anne Downie”
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Within this layer of stratocumulus, Eva spotted a hippopotamus over the Rocky Mountains in the East Kootenay Region, British Columbia, Canada
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The view following a storm over San Francisco Bay, California, US
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Altocumulus floccus perlucidus spotted over Seattle, Washington, US
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Mammatus (Mamma) at sunset over Oro Valley, Arizona, US
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A wave-like appearance in the sky over Vicenza, Italy
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Altocumulus floccus spotted over King Street Station, Seattle, Washington, US
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With the sun high in the sky and behind John, he spotted these contrails, one of which cast a shadow on both the clouds and distant mountains, west of Deming, New Mexico, US
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Low lying stratus approaching San Francisco Airport, California, US
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A 'dragon ship' spotted over Antelope Valley, California, US
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Altocumulus lenticularis over Winthrop, Washington, US
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What looks to be a 'new mountain range' appears to actually be a layer of stratus that is exhibiting Holmboe instability. This is an instability related to Kelvin-Helmholtz instability, and it manifests as bumps in the clouds rather than clouds that curl over. This unique example was spotted by Peggy while out on Lake Superior, near Cornucopia, Wisconsin, US.
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Homogenitus via a prior contrail, which Robin described as 'strange and beautiful', spotted over Montclair, New Jersey, US
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Cirrus over North Devon, England
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Virga at sunset over Sacramento, California, US
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A delicately painted sky at sunrise over Antelope Valley, California, US
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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