Isaac center has been difficult to find on satellite and radar. Isaac overall large circulation is quite sound and its inner core region has been having a hard time. Starting to lean towards Issa staying south of Hispaniola at least the inner core of the storm likely staying just south of the island however eastern Cuba still looks to take the direct hit. While this does not matter much as the storm is quite large and rainfall enhanced by the mountains in those countries will lead to mudslides and significant flooding. Beyond Cuba and I like GFS still for now with track into the FL keys and up the west coast into the Big Bend of FL. Now it Issac does not get its act together and keeps booking west it could very well make it all the way to the central Gulf but that would likely be it about as far west as the short wave trough would easily pull Issac north So I would be on guard from MS coast area east to FL and still into the south Carolia area albeit this is starting to look less likely. Time will tell. But it it does take the GFS and certainly the Euro route this could really deepen....