A woman jogs along Bayshore Boulevanrd in between squalls blowing across the bay in Tampa, Fla., Monday, Aug. 27, 2012. The Republican National Convention has delayed it's start because of the approaching tropical storm Isaac which is churning it's way across the Gulf of Mexico. (AP Photo/Chris O'Meara)

Associated Press
A woman jogs along Bayshore Boulevanrd in between squalls blowing across the bay in Tampa, Fla., Monday, Aug. 27, 2012. The Republican National Convention has delayed it's start because of the approaching tropical storm Isaac which is churning it's way across the Gulf of Mexico. (AP Photo/Chris O'Meara)
A woman jogs along Bayshore Boulevanrd in between squalls blowing across the bay in Tampa, Fla., Monday, Aug. 27, 2012. The Republican National Convention has delayed it's start because of the approaching tropical storm Isaac which is churning it's way across the Gulf of Mexico. (AP Photo/Chris O'Meara)