Isaac: Following the storm’s path

Children look out at the beach as Tropical Storm Isaac approaches in Barahona, Dominican Republic.  (Ricardo Arduengo / Associated Press)

Strong swells hit Bahoruco beach, in Barahona, Dominican Republic, before the expected arrival of Tropical Storm Isaac.   (Orlando Barria / EPA)

Volunteers move balloons that will be dropped from the ceiling of the Tampa Bay Times Forum in Tampa, Fla., during the Republican National Convention. Tropical Storm Isaac is threatening possible disruptions due to its proximity to the Florida peninsula.  (Win McNamee / Getty Images)