The National Hurricane Center says the tempest remains extremely unsafe because of the high volume of rainfall and predicted storm surges, even though its wind speeds lowered slightly on Thursday night, making it a category one hurricane.
More than ten people have been killed by Florence and her impact as the remnants of the storm moved through the area Saturday.
"WE ARE COMING TO GET YOU", the city of New Bern tweeted around 2 a.m.
Cooper went on to say, "It's getting worse".
"Rescue workers are working in unsafe conditions that will only get worse today", he said.
"The greatest storm surge inundation is expected between Cape Fear and Cape Hatteras, including the Neuse and Pamlico Rivers and western Pamlico Sound", the agency said.
He picked up 10 people on one run and took them to a shelter.More news: Experts disagree on whether Dallas officer could be credible
Hurricane Florence made landfall near Wilmington on Friday morning, battering the coastal city with strong winds and torrential rain.
Its top sustained winds have dropped to 70 miles per hour, and it's at a near standstill, moving west at just 3 miles per hour.
The first victims of hurricane Florence struck the coast of the US state of North Carolina, were two people. However, the main risk is, and always has been, life threatening flooding.
In nearby New Bern, where water levels reached at least 10 feet overnight, 150 people requested a rescue.
Swift-water rescue teams from out of state helped local rescuers evacuate people whenever conditions allowed.
As the giant, 400-mile-wide hurricane pounded away, it unloaded heavy rain, flattened trees, chewed up roads and knocked out power to more than 600,000 homes and businesses.
There have been numerous calls for fallen trees, according to officials, however they are not aware of any others where people are trapped.More news: Dutch 'expelled two Russian spies over Novichok lab plot'
Ken Graham, the NHC's director, warned the slow pace of the storm exacerbated its danger even to areas outside its immediate path. Hurricane-force winds and inland flooding also is a concern.
Governor Cooper said half a million customers in North Carolina were without power and it could take weeks for it to be fully restored.
Forecasters are predicting that the storm will continue to weaken but still dump potentially record-breaking amounts of rain as it moves slowly inland.
The National Hurricane Center said Florence will eventually make a right hook to the northeast over the southern Appalachians, moving into the mid-Atlantic states and New England as a tropical depression by the middle of next week.
More than a dozen counties in North Carolina are under a tornado watch, with officials also warning of a chance of hail.
In Wilmington, Mason Tarr said he spent the night at a friend's house but didn't sleep well.
Florence's rain will bring 40 inches to some parts of the Carolinas, forecasters said. "I wonder how it would have been with a Category 4 or 5".More news: Google defends Trump election reaction
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