Tropical Storm Isaac is expected to become a hurricane in the coming days and it is currently moving towards the Florida Keys and the southern Florida Peninsula, and is likely to hit the region on Sunday, according to the National Weather Service.

Experts have issued a hurricane warning for parts of Florida, and the region is expected to suffer extensive flooding in some areas when the storms arrive.

Isaac hit Haiti on Friday night and early Saturday, killing at least two people.

The storm is set to continue on a north-northwest path towards the north coast of Cuba with current maximum sustained winds of 60 mph.

A public advisory was issued at 2 p.m. ET with a hurricane warning for the Florida Keys, the west coast of Florida and Florida Bay. A hurricane warning means that hurricane conditions are expected somewhere within the warning area within the coming 24 to 36 hours.

Robert Molleda, a meteorologist with the National Weather Service, has said: "Even if we don't get hurricane force winds, tropical storm force winds can be dangerous. We are not recommending people be outside," according to The Palm Beach Post.

"We are going to have a lot of power outages and a good number of trees down, with the rain and the ground saturated."

The Republican National Convention is set to take place in Tampa, Fla., located on the west coast of the state, beginning Monday. "We will continue to work closely with them and federal officials to monitor the storm and discuss any impact it might have on the Tampa area and the state of Florida. We continue to move forward with our planning and look forward to a successful convention," William Harris, president and CEO of the Republican National Convention, said earlier this week.