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Open Image ModalRain clouds sweep over the desert plains on the Birdsville Track June 9, 2005 near Marree, Australia. (Photo by Ian Waldie/Getty Images) (credit:Getty)
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Open Image ModalA storm cloud passes over as the US space shuttle Discovery sits on Pad 39A on November 3, 2010 at Kennedy Space Center in Florida. (TIMOTHY A. CLARY/AFP/Getty Images) (credit:Getty)
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Open Image ModalA girl gathers flowers of rapeseed (brassica napus) in a field some 300 km from Kiev prior to heavy rain on May 10, 2010. (SERGEI SUPINSKY/AFP/Getty Images) (credit:Getty)
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Open Image ModalRain clouds sweep over the desert plains on the Birdsville Track June 9, 2005 near Marree, Australia. (Photo by Ian Waldie/Getty Images) (credit:Getty)
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Open Image ModalClouds hang over the Hong Kong skyline on May 22, 2011. (Ed Jones/AFP/Getty Images) (credit:Getty)
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Open Image ModalThe cathedral of Strasbourg, eastern France is pictured on September 18, 2011 as the sun sets on a cloudy sky. (PATRICK HERTZOG/AFP/Getty Images) (credit:Getty)
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Open Image ModalSimon Buret, the singer of French band Aaron, performs during the second day of the 36th edition of the Paleo festival on July 20, 2011 in Nyon. (FABRICE COFFRINI/AFP/Getty Images) (credit:Getty)
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Open Image ModalA cumulonimbus cloud as seen from a commercial airliner on May 28, 2009. (KAREN BLEIER/AFP/Getty Images) (credit:Getty)
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Open Image ModalRainclouds cover the buildings in the central business district of Bangkok on June 16, 2008. (PORNCHAI KITTIWONGSAKUL/AFP/Getty Images) (credit:Getty)
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Open Image ModalHuge rainclouds gather on the horizon beyond Belarabon Station May 17, 2007 in Cobar, Australia. (Photo by Getty Images) (credit:Getty)
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Open Image ModalRain clouds loom over the city skyline November 23, 2005 in Sydney, Australia. (Photo by John Pryke/Getty Images) (credit:Getty)
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Open Image ModalVillagers walk against a backdrop of cyclone clouds on the outskirts of the eastern temple city Bhubaneswar on May 25, 2009. (ASIT KUMAR/AFP/Getty Images) (credit:Getty)
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Open Image ModalDark rainclouds loom before a heavy downpour, which delayed the start of the IPL Twenty20 cricket match between Pune Warriors India and Royal Challengers Bangalore at The Subroto Roy Sahara Stadium in Pune on May 11, 2012. (INDRANIL MUKHERJEE/AFP/GettyImages) (credit:Getty)
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Open Image ModalIndian walk along Juhu Beach in Mumbai on July 22, 2008 as monsoon rainclouds gather overhead. (SAJJAD HUSSAIN/AFP/Getty Images) (credit:Getty)
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Open Image ModalStorm Clouds gather during day 3 of the Fifth Test between South Africa and England on January 23 2005 at Centurion Cricket Ground, Pretoria, South Africa (Photo by Tom Shaw/Getty Images) (credit:Getty)