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These mammatus clouds formed on June 26th 2012 above Regina, Canada shortly after a thunderstorm.

Last June after a stormy night, the residents of Regina in Canada woke up to a super rare cloud formation called the mammatus phenomenon.

from Mail Online

Tunnel vision: Amazing cloud has a starring roll in the sky

Astronomers Robert Nemiroff and Jerry Bonnell, said: 'These rare long clouds may form near advancing cold fronts. 'In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. 'When this happens uniformly along an extended front, a roll cloud may form. via Claire Bates, dailymail.co.uk #Roll_Cloud #NASA #dailymail 'Roll clouds may actually have air circulating along the long horizontal axis of the cloud.'

Frozen Bubbles, Abraham Lake, Alberta, Canada Bubbles trapped and frozen under a thick layer of ice creating a glass type feel to the frozen lake.

Cloud spiral in the sky. An Iridescent (Rainbow) Cloud in Himalaya. The phenomenon was observed early am October 18, 2009.

from BrightSide — Inspiration. Creativity. Wonder.

20 awe-inspiring mountain views that will take your breath away

Rocky Mountains, #Canada Think this is a bit photoshopped but since I live next to the mountains here in Alberta I can state that individually everything is right