"There are no roads ... that are leading into Wilmington that are passable because of the flooding that is taking place now inland", Saffo said.
"We're still struggling to get access to all areas of those counties", Trogdon said. The largest amount so far was in Elizabethtown, which has received 35.93 inches (0.91 meters).
Flooding worries also increased in Virginia, where roads were closed and power outages were on the rise. "We ain't going to be able to do it by ourselves", he said.
Hurricane Florence was a costly near-miss for southeastern Virginia, with preparations last week carrying a pricetag of up to $75 million for state agencies, according to Virginia Secretary of Finance Aubrey L. Layne.
It has dumped up to 100cm of rain on North Carolina since Thursday, the NWS said.
Some of the victims of the storm include a one year old boy who was tragically lost in floodwaters, a man who was trying to plug in a generator, and another infant killed when a tree fell on the family's mobile home.
Wilmington, on the banks of the Cape Fear River in North Carolina, was nearly completely cut off by land but emergency management teams managed to truck food and water overnight into the port city of 120,000 people.
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S.C. officials advised northbound travelers coming from Georgia to either take I-85 through Greenville to Charlotte, or leave I-95 at Interstates 26 or 20, and drive to Columbia and get on I-77 to Charlotte.
More than 641,000 homes and businesses were without electricity in North and SC and surrounding states, down from a peak of almost 1 million. The water receded Sunday, leaving hundreds of fallen trees and "pools of water everywhere".
By 5 a.m. Monday, Florence's winds were about 30 mph (45 kph), the NWS said, with weakening forecast over the next 24 hours before intensifying again.
The storm's aftermath created ideal conditions for snakes, he said, "so I will be watching my feet closely until things reach equilibrium again".
North Carolina observed four-metre floodwaters on Sunday, with reports it was steadily rising. "As you can expect this is a significant setback at the hands of mother nature but we will prevail".
Dominion Energy reported 6,000 customers in the Richmond area were without power due to Monday's storm. State officials also were monitoring the ongoing threat from the breach of a Duke Energy coal ash landfill near Wilmington.
A nine-mile northbound stretch of Interstate 95 in SC, just south of the North Carolina line, remained closed Monday due to flooding from Hurricane Florence.
He says most of the children are from the flat, coastal regions of North Carolina and had never seen mountains before.