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Mammatus (Mamma) spotted over Sacramento, California, US
A merged line of storm cells viewed from above the clouds, over the Java Sea, between Jakarta and Bali, Indonesia
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An imposing storm system over Madison, Wisconsin, US
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Signs of mammatus (mamma) and virga spotted near Estrella Foothills, Arizona, US
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A visually dynamic storm system near Tolsta, Isle of Lewis, Scotland
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A dissipating Cumulonimbus over Somerset, England
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Primary and secondary rainbows spotted over Warwickshire, England
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A dissipating storm system spotted over Girona, Spain
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A storm spotted on the horizon near Tauranga, New Zealand
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Canada geese flying underneath a layer of Asperitas over North Dundas Township, Ontario, Canada
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Mammatus (Mamma) spotted over Bathinda, India
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Signs of asperitas and lacunosus spotted over North Dundas Township, Ontario, Canada
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Asperitas, with the look of waves in the sky, spotted over Vermontville, Adirondacks, New York, US
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A developing storm system spotted by Linda Ihle near Smyrna, South Carolina, US
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Signs of asperitas in the afternoon over Curtin, Canberra, Australia
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Sunset accompanied by mammatus (mamma) clouds, following heavy rain in Karachi, Pakistan
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