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Optical Effects
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Signs of Fluctus (Kelvin-Helmholtz) spotted over Berkshire, England
Contrails in the early morning hours, spotted near Concord, California, US
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Parhelic Circle amidst the optical phenomena spotted over New York City, New York, US
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A wide range of contrails and dispersement as a result of varying atmospheric conditions, such as humidity, temperature, wind shear, and atmospheric and aircraft-induced turbulence. The clouds that are formed are done so via homogenitus and are dispersed wider in conditions of high humidity and high wind shear. This expansive display was captured by Ted Burrows over Lexington, Virginia, US.
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Cumulus fractus spotted over the River Tejo in Lisboa, Portugal
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Sunset as viewed on approach to Orange County Airport, near Santa Ana, California, US
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Signs of remnants of contrails, with upper level winds spreading it out perpendicular to its original pathway, spotted over San Bernardino County, California, US
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Strong upper level winds leading to the dispersal of this Cirrus cloud and the appearance of a large feather in the sky, which may have had its origins in a contrail or two, spotted over Kelseyville, Lake County, California, US
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Contrails spotted over Salt River, Mesa, Arizona, US
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Signs of the remnants of contrails spotted over Haight-Ashbury, San Francisco, California, US
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Contrails that morphed into a giant star over Lusk Village, County Dublin, Ireland
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Contrail spotted over Devanahalli, Bangalore, India
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Reflections of the sky via Albemarle Sound, Edenton, North Carolina, US
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A unique juxtaposition of Altocumulus lenticularis and Fluctus (Kelvin-Helmholtz) spotted on the lee side of the Rocky Mountains in Berthoud, Colorado, US
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The first full moon of 2026, accompanied by remnants of contrails, spotted over Arnhem, The Netherlands
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A winter sunset over Irvine, California, US
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