Overall view of the main beach under heavy clouds in Cancun, Mexico, Wednesday, July 27, 2011. Tropical storm Dan has formed over the southern Gulf of Mexico and is moving towards the west-northwest. ... more 
Overall view of the main beach under heavy clouds in Cancun, Mexico, Wednesday, July 27, 2011. Tropical storm Dan has formed over the southern Gulf of Mexico and is moving towards the west-northwest. (AP Photo/Israel Leal) less 
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Associated Press | Photo By Israel Leal
Wed, Jul 27, 2011 7:20 PM EDT