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Optical Effects
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Asperitas over Northern California, US
A developing storm system near Curitiba, Brazil
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An impressive view of a developing cumulonimbus from the top of the Partenio mountains looking towards the top of Monte Stella twenty kilometers away, spotted in Italy.
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From above and next to the clouds, a unique view of storms developing over Miami, Florida, US
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Cumulonimbus with signs of a potentially developing murus, also known as a wall cloud, spotted over Curtin, Canberra, Australia
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A colorful view of a storm system that is accentuated, as Jon describes, by the spots of rain on the car windshield. It adds to the "portal in time and space" vibe of this photograph, near Langfjordbotn, Finnmark, Norway.
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A storm system with a trail of clouds, spotted near Manly, New South Wales, Australia
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Cumulonimbus moving south over the Indian Ocean, near Sodwana Bay, South Africa
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A rare sighting of what appears to be a twinned rainbow. This is when twin rainbows, one primary and one secondary, start at the same point, yet they follow slightly different paths so they end up looking something like a rainbow-colored "V". This is caused by different sizes and shapes of water drops falling from the sky at the same time. This optical phenomena was spotted near Den Hoorn, Texel, Netherlands.
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Cumulonimbus over t Horntje, Netherlands
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On a flight from Dubai to Johannesburg, Jim had a unique view from above the clouds, viewing the storms developing over Zanzibar on Unguja Island, Tanzania
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A plethora of storm development as seen while flying from Kuala Lumpur, Malaysia, to Medan in Sumatra, Indonesia
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A classic example of pileus forming over a developing cumulonimbus, spotted over Kilgore, Texas, US
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A colorful representation of an approaching storm at sunset, near Siler City, North Carolina, US
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Storm systems in varying stages of development and deterioration, spotted looking west towards the sea on a cold day, near Rufford, West Lancashire, England
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A storm system that approached fast, per John's report, and provided a lot of rain over a 30-minute time period, near Redcliffe, Queensland, Australia
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