Dr. Rick Knabb, director of the National Hurricane Center, updates a reporter on tropical storm Isaac Wednesday, Aug. 22, 2012, at the National Hurricane Center in Miami. As of 11:00 AM tropical storm... more 
Dr. Rick Knabb, director of the National Hurricane Center, updates a reporter on tropical storm Isaac Wednesday, Aug. 22, 2012, at the National Hurricane Center in Miami. As of 11:00 AM tropical storm Isaac's location 15.9 degrees north, 59.3 degrees west, about 140 miles east of Guadeloupe, maximum sustained winds 45 mph, present movement west or 280 degrees at 21 mph. (AP Photo/Alan Diaz) less 
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Associated Press | Photo By Alan Diaz
Wed, Aug 22, 2012 4:41 PM EDT