Florida Power & Light was aiming to restore all power to Broward and Miami-Dade customers on Tuesday, a company spokesman said.
As of 5 p.m. 3,910 customers were without power in Miami-Dade, and 1,910 did not have power in Broward. Click here to see outages in real time.
About 6,000 workers throughout the state with 4,200 of them in South Florida were trying to get the power restored, said Richard Gibbs, FPL spokesman. He added that the company was working to restore power to all Floridians.
"Yesterday there were bands of really heavy weather that came through. You are looking at high winds and rain. A lot of outages are attributed to rain, strong, winds," he said. "With a storm of that magnitude and that size it's hard to predict when you would get squalls coming through that could impact your estimated time of restoration."
Gibbs added that the company was in the final stages of restoring power, with the highest concentration of outages being in northeast Miami-Dade and southeast Broward.
"Every storm is different. No electric utility can be storm-proof," he said.
He added that about $1 billion has been spent improving the infratsructure to make it more storm resistant, but they don't know if that investment paid off during Isaac. The company will do an assessment to see once power is restored to all the customers.
Meanwhile, Patricia Arias, from Coconut Grove, lost power more than two day ago because FPL installed a new utility pole in front of her house but never connected it. In her neighborhood there are 52 homes without electricity.
"I am extremely disappointed because in Hurricane Wilma my power didn't go out, and in this little storm, OK, fine, it'll go out whatever, but not only did the power go out, it was fine, it was like the 4th of July," she said.