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Reflections of altocumulus lenticularis over Mirror Lake, Lake Placid, New York, US
Multiples examples of cumulonimbus incus, also known as anvil clouds, along with a lower layer of altocumulus undulatus, as seen from 37,000 feet above Mississippi, US
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The sheep didn't appear to be interested in the plethora of altocumulus lenticularis over Priddy, Somerset, England
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Asperitas following a storm over Bismarck, North Dakota, US
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Stratocumulus lenticularis, a less common formation of lenticular clouds, which develop at a lower level of the atmosphere, spotted over Bairnsdale, Victoria, Australia
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Altocumulus lenticularis stacked one above the other, caused by wave motion in multiple humid layers of air, also known as "pile d'assiettes", spotted near the Cholla Cactus Garden, Joshua National Park, California, US
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Altocumulus stratiformis undulatus, also known as a "mackerel sky", spotted over Proserpine, Queensland, Australia
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A vivid display of mammatus (mamma) over College Station, Texas, US
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Altocumulus undulatus over the Outback near Coober Pedy, Australia
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A classic example of asperitas spotted during the early morning over Tours, France
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Undulatus over Whitley Bay, England
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A classic example of asperitas spotted over the Black Mountains, Western North Carolina, US
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Asperitas in the late afternoon near Vermontville, Adirondacks, New York, US
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An expansive display of lacunosus within cirrocumulus clouds spotted over Kamloops, British Columbia, Canada
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Altocumulus stratiformis undulatus, also known as a "mackerel sky", spotted in the morning over Banqiao District, New Taipei City, Taiwan
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Following a storm, mid-to-upper level winds brought about undulatus above El Dorado Hills, California, US
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