By | August 25 2012 1:28 PM

Residents in Florida and Cuba have been preparing for Tropical Storm Isaac after it dumped rain and heavy winds on Haiti Friday night. The storm is expected to be upgraded to hurricane status by the time it hits the Florida Keys region on Sunday evening, The Weather Channel reported. It remains unknown how the winds will affect the northern Gulf coast due to the lack of land interaction Isaac has had with Cuba, the nearest island to the region, so far.