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Roll Cloud seen on January 25th 2009, in "Las Olas Beach" located in "Punta del Este" (Country: Uruguay, State: Maldonado)
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Lenticular Cloud in Palm Springs April 2008

Eruption of Sarychev Volcano in the Kuril Islands, northeast of Japan on June 12 2009 shows an interesting example of a pileus cloud.

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Rolling thunderstorm (Cumulonimbus arcus): photographed on July 17, 2004 in Enschede, The Netherlands

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A shelf cloud (a type of arcus cloud), seen over Swifts Creek, Victoria (Australia). Seen in October 2007

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Lenticular Cloud(s)

Lenticular clouds over Mt. Rainier.

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These formations are caused by wave motions in the atmosphere and are frequently seen in mountainous or hilly areas. They are often called wave clouds.

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Lenticular clouds

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Appeared over Show Low,AZ. 9-22-08 about 10 am. Wind was blowing quite strongly in the upper atmosphere.They would appear as oval shaped blobs coming from the west, start getting holes and then eventually just turn into wisp like spider webs. They were colored, as if a rainbow was in the cloud. There were also regular clouds, but the strange clouds only lasted maybe 15-20minutes.  link

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The photo (above) was captured by photographer Mick Petroff near the Gulf of Carpenteria. These strange, tubular clouds can grow to be 600 miles long (!!) and move at up to 35 kilometres an hour, causing havoc for aircraft.

The clouds are known as “Morning Glory” and appear in autumn over a remote town in Queensland called Burketown.

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1 comments

anney on Jul 8, 2012, 9:57:00 PM  

Very unique cloud formations!