Catastrophic flooding from Florence spread across the Carolinas on Sunday, with roads to Wilmington cut off by the epic deluge and muddy river water swamping entire neighbourhoods miles inland.
"The risk to life is rising with the angry waters," Governor Roy Cooper declared as the storm's death toll climbed to 15.
The storm continued to crawl westwards, dumping more than 30 inches of rain in spots since Friday, and fears of historic flooding grew. Tens of thousands were ordered evacuated from communities along the state's steadily rising rivers - with the Cape Fear, Little River, Lumber, Waccamaw and Pee Dee rivers all projected to burst their banks.
In Wilmington, with roads leading in and out of the city underwater and streams still swelling upwards, residents waited for hours outside stores and restaurants for basic necessities like water. Police guarded the door of one store, and only 10 people were allowed inside at a time.
Woody White, chairman of the board of commissioners of New Hanover County, said officials were planning for food and water to be flown into the coastal city of nearly 120,000 people.
"Our roads are flooded," he said. "There is no access to Wilmington."
About 70 miles away from the coast, residents near the Lumber River stepped from their homes directly into boats floating in their front yards; river forecasts showed the scene could be repeated in towns as far as 250 miles inland as waters rise for days.
Downgraded to a tropical depression overnight, Florence was still massive. Radar showed parts of the sprawling storm over six states, with North and South Carolina in the bull's-eye.
Tens of thousands were ordered to evacuate from what officials said could be the worst flooding in North Carolina's history, but it wasn't clear how many had fled or even could. The head of Federal Emergency Management Agency, Brock Long, said officials were focused on finding people and rescuing them.
"We'll get through this. It'll be ugly, but we'll get through it," Long told NBC's 'Meet The Press'.
President Donald Trump said federal emergency workers, first responders and law-enforcement officials are "working really hard" on Florence. He tweeted that as the storm "begins to finally recede, they will kick into an even higher gear. Very Professional!"
The storm's death toll climbed to 15 when a pickup truck ran off Interstate 20 in South Carolina and struck an overpass support, killing the driver. Earlier, authorities said a man drowned after his pickup truck flipped into a drainage ditch along a flooded South Carolina road, and two people died from inhaling carbon monoxide from a generator in their home.
About 740,000 homes and businesses remained without power in the Carolinas, and utilities said some could be out for weeks.
Victor Merlos was overjoyed to find a store open for business in Wilmington, since he had about 20 relatives staying at his apartment, which still had power. He spent more than $500 on cereal, eggs, soft drinks and other necessities, plus beer.