- NEW: Parts of Louisiana, including New Orleans, under hurricane watch
- Republican convention gets pushed back a day in Tampa
- Isaac is expected to become a hurricane Monday as it moves past the Florida Keys
- At least two people die in storm-related incidents in Haiti, officials say
Miami (CNN) — As Tropical Storm Isaac moved quickly through the Straits of Florida on Sunday morning, coastal communities in Florida issued mandatory evacuations and Republicans delayed the start of their national convention.
With sustained winds of 65 mph, Isaac lashed Cuba with strong winds and dumped rain on the island early Sunday. No major damage or injuries were immediately reported in Cuba.
Heavy rains were already falling in some parts of south Florida, where a tornado watch is in effect until 5 p.m. ET.