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Other Clouds
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Optical Effects
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Lacunosus, a rare, short-lived formation, is identified in terms of the gaps between cloud elements, rather than the clouds themselves. It is when a cloud layer is composed of more or less regular holes, around which fringes of cloud form, like a net or rough honeycomb. The holes of this variety are formed by sinking pockets of air, and the cloud fringes around them by air rising up between the pockets to replace them. Such sinking can occur when a layer of cooler air finds itself over a warmer one. Being more dense, the cooler air sinks down through the warmer air. This classic example was spotted on a cold morning over Priddy, Somerset, England.
Clouds that appear to originate from the belfry of the Cathedral of Our Lady of the Assumption, Oaxaca, Mexico
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Since childhood, Anahí felt drawn to clouds and spent hours watching them transform. This image of a storm system was captured near the city of Colón on the Uruguay River in the province of Entre Ríos, Argentina.
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Indications of a roll cloud (volutus), which separated from an ensuing storm, spotted while traveling north towards Minnesota, along I-35 in Iowa, US
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Primary and secondary bows spotted over Haarle, The Netherlands
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Cumulus fractus drifting in the sky over San Diego, California, US
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Signs of lacunosus on the underside of the leading edge of a cumulonimbus, spotted over Erm, The Netherlands
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Cumulus on the distant horizon along with stratocumulus overhead, spotted near Yanliao Village, Shoufeng Township, Hualien, Taiwan
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Altocumulus lenticularis duplicatus spotted at sunset while looking west over the Spring Mountains, near Las Vegas, Nevada, US
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Signs of a dissipating arcus associated with a diminishing storm system near Bremen, Germany
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Cumulus and cirrostratus spotted over Camino, California, US
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Cumulus congestus over Taipei, Taiwan
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Pannus associated with a storm system, spotted over Tucson, Arizona, US
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Crepuscular rays during sunrise over Shiraz, Iran
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Cirrus spissatus emanating from a dissipating storm system, resembling wispy candle flames, spotted over Rufford, West Lancashire, England
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On the back side of a cumulonimbus, signs of mammatus (mamma) spotted over Wells, Somerset, England
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