Sustained winds of 30-50 mph with gusts to 70 mph are possible.winds of 40-50 mph with gusts up to 70 mph will be possible. "But I'm also very concerned about the storm surge". More than 100,000 customers were without power in Georgia and over 80,000 in SC.
Almost 7 million people in the Southeast were warned to evacuate, including 6.4 million in Florida alone.
"In recorded history, there have been only three Category 5 hurricanes to make landfall on the U.S.", Nitz said.
Almost 7 million people in the Southeast were warned to evacuate, including 6.4 million in Florida alone, according to the AP.
Earlier, Hurricane Harvey also hit Texas as a Category 4 storm, which marked the first time on record that two storms that powerful had made landfall in the United States in a single year. The second one hit Marco Island, leaving the entire island without water and power, authorities said.
Water is receding from parts of downtown Miami that flooded, with as much as four to six feet of water in the financial district. "It was was like, 'Oh my God, what is going to happen?"'
The cyclone is expected to move along or near the southwest coast of Florida on Sunday afternoon..
"It's awful, what we saw", Scott said.
Flooding in the Brickell neighborhood as Hurricane Irma passes Miami, Fla., Sept. 10, 2017.
Credit Associated Press A houses is surrounded by water as Hurricane Irma passes through Naples Fla. Sunday Sept. 10 2017
The figure represents nearly 60% of the state's electricity users, who were still experiencing power outage as of 9 p.m. EDT Monday, according to the state's Division of Emergency Management.
Emergency workers in Daytona Beach rescued 25 people with a high-water truck after they were suddenly caught in an onslaught of wind and rain.
The Jacksonville Sheriff's Office warned residents along the St. Johns River to "Get out NOW". "To the public in their homes who are trying to ride out this storm, we urge you to not get on the roads until you have been given clearance by everyone who is required to give clearance".
Miami and other heavily populated areas of southeastern Florida are on the worst side of the storm.
Weather forecasters are warning of possible tornadoes in Florida, Georgia and SC through Monday night.
Standing water along USA 41 from Colonial to the Caloosahatchee in Fort Myers was reported after Hurricane Irma passed through the area Sunday. "As soon as the wind shifts direction, the water will come back quickly and continue to move inland", CNN meteorologist Judson Jones said.
There will be heavy rain accumulations into Wednesday in parts of Florida, Georgia, Alabama, South Carolina, Mississippi and North Carolina, forecasters said.
Other major hubs like Hartsfield-Jackson-Atlanta International Airport are preparing for a direct hit from the weakened storm and are advising customers to check with their airline for possible delays and cancellations over the next two days.