Isaac prompts hurricane warnings from La. to Fla.
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Credit: Getty Images
CLEARWATER, FL - AUGUST 25: Alex Guilbaud runs with a skimboard as storm clouds build offshore on August 25, 2012 in Clearwater, Florida. Tampa area residents wait for Tropical Storm Isaac as they prepare for the Repulican National Convention which will be held in Tampa during the week of August 27th. (Photo by Tom Pennington/Getty Images)
