Isaac prompts hurricane warnings from La. to Fla.
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Credit: Getty Images
TREASURE ISLAND, FL - AUGUST 26: Beach goers take advantage of a sunny morning ahead of Tropical Storm Isaac on Sunday August 26, 2012 at Treasure Island, Florida. Although Isaac is currently a tropical storm, it is expected to grow to hurricane strength by the time it reaches the Tampa Bay area. (Photo by Edward Linsmier/Getty Images)
