The last part of the National Hurricane Center (NHC) U.S. released at 3:00 GMT indicates that the storm was at that time at 100 miles south-southwest of Port Prince and about 395 kilometers southeast of Guantanamo, Cuba, and indicates that the trend is to "accelerate northwestward during this night and Sunday. "
Strengthening the weather phenomenon that caused the alert ariseth in southern Florida peninsula.
Isaac is expected to make landfall tonight in Haiti where thousands of people still living in camps after the January 2010 earthquake that left them homeless.
After a stint in Haiti, Tropical Storm will head southeast of Cuba on Saturday, while expected to reach the Florida Keys in the United States on Sunday.
Moreover, the rains caused by tropical storm were felt in Venezuela where, authorities say, have left two dead, two injured and some 400 families affected.