In New Bern, North Carolina, the National Weather Service said there was 10ft of water.
Myrtle Beach, South Carolina, has been lashed by torrential rains and near-hurricane force winds, CBS News correspondent Don Dahler reported.
Florence was packing 120mph winds (193km/h) on Thursday but weakened from a Category 3 hurricane to Category 1 before it hit the coastline on Friday.
Jacob Fernandez (left) and Josh Fernandez play around on the tree that fell near their home as Hurricane Florence passed through the area on Friday in Bolivia, N.C.
Cooper said others should not follow suit.
"Many people who think the storm has missed them have yet to see its threat", he said, adding: "Don't go back until this storm passes and you get the official all clear". Mike Doll, Senior Meteorologist at Accuweather said the windswill continue to slow down over the weekend and the main problem moving forward will be flooding due to heavy rains.
Power outages mounted until almost 700,000 customers were in the darkin North Carolina alone.
"Life-threatening, catastrophic flash floods and prolonged significant river flooding are likely over portions of the Carolinas and the southern to central Appalachians from western North Carolina into southwest Virginia through early next week".
"Right now we've rescued over 400 people".
"Florence is yet another poster child for the human-supercharged storms that are becoming more common and destructive as the planet warms", said Jonathan Overpeck, dean of the environment school at University of MI.
More than 800,000 homes and businesses have lost power and Mr Cooper said the danger from flooding would linger for days.
Two people also died in Harkers Island, North Carolina, on Friday, Carteret County Director of Emergency Services Stephen Rea said Saturday.
"Some of our beloved bears have wandered away", city officials tweeted next to a picture of the statue.
That's the new North Carolina record for most rainfall from a single tropical system.
Firefighters said the area had not been in the zone under evacuation orders. In the state´s Pender County, a woman died of a heart attack; paramedics trying to reach her were blocked by debris. "I love hurricanes. But this one has been an experience for me", she said.
"I don't see any portion of the state of North or SC that's not going to be impacted in some way", said Cline.
For people living inland in the Carolinas, the moment of maximum peril from flash flooding could arrive days later, because it takes time for rainwater to drain into rivers and for those streams to crest.
The White House said President Donald Trump would visit hurricane-hit areas next week "once it is determined his travel will not disrupt any rescue or recovery efforts".
The National Hurricane Center said Florence broke a North Carolina rainfall record that had stood for nearly 20 years: Preliminary reports showed Swansboro got over 30 inches and counting, eclipsing the mark set in 1999, when Hurricane Floyd dropped just over 24 inches on the state. As of Saturday night, at least 11 deaths had been linked to the storm.
Reportedly, the girl had broken off with the accused some three months back and he has been harassing her ever since. A viral video of a boy violently beating up a girl in Delhi's Tilak Nagar went viral on social media recently.
Everyone will then receive this message in English: "THIS IS A TEST of the National Wireless Emergency Alert System ". But it won't be a political message or attack on one of his perceived enemies-or at least, it's not supposed to be.
In Jacksonville, a relentless band of heavy rain gutted buildings, drenched streets and left wildlife to battle the rising waters. The effects from this huge amount of rainfall will be felt for days to come as rivers could swell for weeks.
EST, the storm was centered 280 miles east southeast of Wilmington , North Carolina , and was moving northwest at 17 mph. The latest projections of Florence, now a Category 4 storm, show it shifting south putting Georgia in its possible path.
An estimated 3mn people live in Idlib - the last major stronghold of active opposition to President Bashar al-Assad. The UN has warned that such an offensive would lead to the "worst humanitarian catastrophe in the 21st century".
Boat teams rescued residents Sadie Marie Holt, 67, who first tried to row out of her neighborhood during Florence's assault. The Wilmington airport had a wind gust clocked at 105 miles per hour (169 kph), the highest since Hurricane Helene in 1958.
The National Hurricane Center is calling for 20 to 30 inches of rain in North Carolina, with spots up to 40 inches. This general motion, accompanied by a further decrease in forward speed, is expected to continue through today.
And then before I knew it, I was getting all of this hostile mail and all of that during my last couple of years. When she smashed her racquet in frustration he cited her again, giving her a point penalty.
Russian Federation has said the United States had acted without evidence on the basis of groundless accusations. Treasury Department sanctioned a Chinese tech firm, its Russian sister company and the CEO on Thursday.
Governors in South Carolina, North Carolina and Virginia have declared states of emergency in preparation for Florence. The US Navy said it was preparing to send about 30 ships stationed in Virginia out to sea.
So I'm just super, super thankful and really humble to be able to share the court with her with a championship on the line. Once, twice, three times a champion! Seattle is in the WNBA Finals for the third time in franchise history.
Mackie rode in a boat through a flooded neighborhood, navigating through trees and past a fence post to get to the Knox house. Morehead City, North Carolina, had received 23 inches (58 centimeters) of rain by Friday night with more torrents on the way.
Super Typhoon ‘Mangkhut’ strikes northern Philippines
Hong Kong is expected to start feeling strong winds and heavy rain today, growing in intensity as the storm draws ever closer. The governor of Isabela, Bojie Dy, said 1,542 families (5,429 people) had been evacuated from coastal areas in his province.
Trump claims Maria death toll rose 'like magic'
Last May, Harvard University public health researchers published a study that estimated the death toll was even higher. After President Trump visited the island in October, the governor announced the death toll had risen to 34.