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An example over Southport, UK, of V.C.I., vortex crow instability, it occurs when the wingtip vortices interact with the aircrafts contrails.
One thought on “An example over Southport, UK, of V.C.I., vortex crow instability, it occurs when the wingtip vortices interact with the aircrafts contrails.”
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Iridescence along with clouds that Ted described as looking like tattered cloth, spotted over Glouster County, New Jersey, US
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Cirrus vertebratus homogenitus, which developed from the remnants of a contrail, spotted over Lake Stevens, Washington, US
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A peaceful view from the peninsula at Punta Mita, Nayarit, Mexico
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Lenticularis over Alto, United States
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A colorful sunrise over the Adirondack Mountains, Vermontville, New York, US
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Cumulus congestus over Northwest Iran
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A grand display of virga, following a day that Martha described as being filled with cirrus uncinus, spotted over Asheville, North Carolina, US
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A late afternoon volutus (roll cloud) over the Kapiti Coast, North of Wellington, New Zealand
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An "X" marks the spot near this full moon, spotted over Blackhorse Lane, London, England
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Lunar halo and corona over Stanwood, Washington, US
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Sun Dog (Parhelion) soon after sunrise spotted over Nashville, Tennessee, US
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Sunset over Aratsu Beach as the sun appears from the clouds, spotted near Aratsu, Fukuoka City, Japan
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Cirrus fibratus homogenitus, which reflects a cloud that forms from a human source, such as contrails in this case, with the influence of strong upper level winds. This formation was spotted over Jedburgh, Scottish Borders, Scotland.
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Cirrus uncinus and fibratus, which can often be seen in the same view of the sky, as spotted here over Kasuga City, Fukuoka Prefecture, Japan
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Cirrus over Principe Real, Portugal
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Very nice Ian. The Crow instability gives the contrail strange shapes. Look on the forum for some other examples in black and white:
https://cloudappreciationsociety.org/forums/topic/circular-crow-contrail/
I was quite surprised to see this happen.
Hans