When the weather conditions are right the Black Forest in southern Germany can turn into a thunderstorm factory. This picture shows three cells in various stages of development, all matured into thunderstorms over the rest of the day. The view is taken from just across the border in northern Switzerland. Image by Neil Jones.
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Cumulus clouds in late afternoon., Rhode Island Image by Gary Boden
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A deck of stratus below and cirrus above. Image by Anthony Watts, June 2001 Elevation 4,145 metres (13,600 ft)
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Lenticular clouds, late afternoon. Taken between Lompoc and Santa Barbara, CA. near Highway 1& 101 junction. Image by B. Alicia Ross
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May 19th, 2011 Stars of Ursa Major (the Big Dipper) constellation over a cumulounimbus cloud with some lightning. Taken with a Panasonic DMC-TZ1 camera, 30 sec. exposure, ISO-80. Location: Maracaibo, Venezuela. Image by Henry Mendt
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Altocumulus, contrail and iridescence all in one photo.
Near Seattle, WA
Bob Harrington, http://www.bobqat.com