Hurricane Irma has begun to spread tropical storm force winds to South Florida, including in Ft.
Meanwhile, Florida Power and Light (FPL) estimated that almost 3.4 million of its customers could be without power at some point during Hurricane Irma.
Hurricane Irma battered the north of Cuba on Saturday before it began to turn north for its run up Florida's western coast.
"We could see millions of people without power in Florida for multiple days in some areas, maybe weeks, and so I think it's very important to set the expectations of citizens", Federal Emergency Management Agency chief Brock Long told CNN's Rene Marsh at his agency's headquarters in Washington, D.C., Saturday. He said that more shelters would be opened on Saturday.
Irma weakened to a Category 3 storm before it blew by Cuba, but it caused plenty of damage. People who didn't evacuate were told to brace for the storm by pulling in lawn furniture, wind chimes and anything else unsecured on their property. The Governor said that 76,000 customers had already lost power.
Officials imposed a night-time curfew in Miami Beach on the eastern side of the state, which also is expected to feel the wrath of the massive storm whose hurricane-force winds extend more than 100km from its centre.
At least 21 people have been killed so far after the Category 5 storm ravaged islands in the Caribbean, flattening buildings and wrecking infrastructure.