WILMINGTON, N.C. - Motorists streamed inland on highways converted to one-way evacuation routes Tuesday as about 1.7 million people in three states were warned to get out of the way of Hurricane Florence, a hair-raising storm taking dead aim at the Carolinas with 140 mph winds and potentially ruinous rains.
Florence was expected to blow ashore late Thursday or early Friday, then slow down and wring itself out for days, unloading 1 to 2½ feet of rain that could cause flooding well inland and wreak environmental havoc by washing over industrial waste sites and hog farms.
Forecasters and politicians pleaded with the public to take the warnings seriously and minced no words in describing the threat.
"This storm is a monster. It's big and it's vicious. It is an extremely, dangerous, life-threatening, historic hurricane," said North Carolina Gov. Roy Cooper.
He added: "The waves and the wind this storm may bring is nothing like you've ever seen. Even if you've ridden out storms before, this one is different. Don't bet your life on riding out a monster."
President Donald Trump declared states of emergency for North and South Carolina and Virginia, opening the way for federal aid. He said the federal government is "absolutely, totally prepared" for Florence.
All three states ordered mass evacuations along the coast. But getting out of harm's way could prove difficult.
Florence is so wide that a life-threatening storm surge was being pushed 300 miles ahead of its eye, and so wet that a swath from South Carolina to Ohio and Pennsylvania could get deluged.
People across the region rushed to buy bottled water and other supplies, board up their homes, pull their boats out of the water and get out of town.
A line of heavy traffic moved away from the coast on Interstate 40, the main route between the port city of Wilmington and inland Raleigh. Between the two cities, about two hours apart, the traffic flowed smoothly in places and became gridlocked in others because of fender-benders.
Only a trickle of vehicles was going in the opposite direction, including pickup trucks carrying plywood and other building materials.
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Long lines formed at service stations, and some started running out of gas as far west as Raleigh, with bright yellow bags, signs or rags placed over the pumps to show they were out of order. Some store shelves were picked clean.
"There's no water, there's no juices, there's no canned goods," Kristin Harrington said as she shopped at a Walmart in Wilmington.
The storm's coastal surge could leave the eastern tip of North Carolina under more than 9 feet of water in spots, projections showed.
"This one really scares me," National Hurricane Center Director Ken Graham said.
Federal officials begged residents to put together emergency kits and have a plan on where to go.
"This storm is going to knock out power days into weeks. It's going to destroy infrastructure. It's going to destroy homes," said Jeff Byard, an official at the Federal Emergency Management Agency.
Forecasters said parts of North Carolina could get 20 inches of rain, if not more, with as much as 10 inches elsewhere in the state and in Virginia, parts of Maryland and Washington, D.C.
One trusted computer model, the European simulation, predicted more than 45 inches in parts of North Carolina. A year ago, people would have laughed off such a forecast, but the European model was accurate in predicting 60 inches for Hurricane Harvey in the Houston area, so "you start to wonder what these models know that we don't," said University of Miami hurricane expert Brian McNoldy.
Rain measured in feet is "looking likely," he said.
The storm forced people to cut their vacations short along the coast.
Paula Matheson of Springfield, Oregon, got the full Southern experience during her 10-week RV vacation: hot weather, good food, beautiful beaches and, finally, a hurricane evacuation.
Florence interrupted her stay on North Carolina's Outer Banks. It took Matheson and her husband nearly the whole day Monday to drive the 60 miles off the barrier island .
"It was so beautiful. The water was fabulous. Eighty-five degrees," Matheson said, pausing a moment. "I guess that's a big part of the problem."
Florence could slam the Carolinas harder than any hurricane since Hazel , which hit in 1954 with 130 mph (209 kph) winds. The Category 4 storm destroyed 15,000 buildings and killed 19 people in North Carolina.
In the six decades since, many thousands of people have moved to the coast.
Florence's projected path includes half a dozen nuclear power plants, pits holding coal-ash and other industrial waste, and numerous hog farms that store animal waste in huge lagoons.
Duke Energy spokesman Ryan Mosier said operators would begin shutting down nuclear plants at least two hours before hurricane-force winds arrive.
North Carolina's governor issued what he called a first-of-its-kind mandatory evacuation order for North Carolina's fragile barrier islands from one end of the coast to the other. Typically, local governments in North Carolina make the call on evacuations.
"We've seen nor'easters and we've seen hurricanes before," Cooper said, "but this one is different."
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