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Cirrocumulus with signs of lacunosus within its formation, spotted over Somerset, England
Asperitas with signs of lacunosus spotted over Sacramento, California, US
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Cirrocumulus undulatus with signs of lacunosus, spotted over Lake Stevens, Washington, US
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Asperitas and lacunosus spotted in tandem over WInnipeg, Manitoba, Canada
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Altocumulus lacunosus spotted over Turville, England
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Asperitas and signs of lacunosus spotted over Rochester, New York, US
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Dynamic iridescence spotted at sunrise over Brighton, Colorado, US
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Lacunosus, a relatively rare and short-lived cloud formation, takes on the look of a honeycomb pattern of round holes with frayed edges. It is formed when a layer of rising warm air and a layer of cold air come into contact with one another, causing downdrafts that push through the cloud. This classic example was spotted by Alexia's friend, Bob Hunter, near Lexington, Virginia, US.
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A unique juxtaposition of lacunosus with a vivid display of the Northern Lights (Aurora Borealis), spotted over Southern Alberta, Canada
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Lacunosus, a short-lived formation, spotted over Island Beach State Park, New Jersey, US
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A well-defined arcus marks the leading edge of this storm system, which is accompanied by asperitas and signs of lacunosus, near Fort Wayne, Indiana, US
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Lacunosus, a short-lived cloud formation, was spotted over North Devon, England
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Lacunosus clouds, the honeycombs of the sky, spotted over Oakland, California, US
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An expansive display of lacunosus within cirrocumulus clouds spotted over Kamloops, British Columbia, Canada
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A classic example of lacunosus spotted over Barrea, Italy
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Asperitas and lacunosus spotted over Pittsburgh, Pennsylvania, US
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