BUXTON, N.C. (AP) — A monstrous Hurricane Irene tightened its aim on the Eastern Seaboard, threatening 65 million people along a shore-hugging path from North Carolina to New England. One of the nation's top experts called it his "nightmare" scenario.
The Category 3 storm with winds of 115 mph — the threshold for a major hurricane — would be the strongest to strike the East Coast in seven years, and people were already getting out of the way.
Tens of thousands fled North Carolina beach towns, farmers pulled up their crops, and the Navy ordered ships to sea so they could endure the punishing wind and waves in open water. Early Friday, the storm was once again in warm Atlantic waters that could energize it.
All eyes were on Irene's projected path, which showed it bringing misery to every city along the I-95 corridor, including Washington, New York and Boston. The former chief of the National Hurricane Center called it one of his three worst possible situations.
"One of my greatest nightmares was having a major hurricane go up the whole Northeast coast," Max Mayfield, the center's retired director, told The Associated Press.
He said the damage will probably climb into billions of dollars: "This is going to have an impact on the United States economy."
The head of the Federal Emergency Management Agency said damages could exceed most previous storms because so many people live along the East Coast and property values are high.
"We've got a lot more people that are potentially in the path of this storm," FEMA Director Craig Fugate said in an interview with The Associated Press. "This is one of the largest populations that will be impacted by one storm at one time."
The storm would "have a lot of impact well away from the coastline," he added. "A little bit of damage over big areas with large populations can add up fast."
Irene was massive, with tropical-force winds extending almost twice as far as normal, about the same size as Katrina, which devastated New Orleans in 2005.
"It's not going to be a Katrina, but it's serious," said MIT meteorology professor Kerry Emanuel. "People have to take it seriously."
The governors of North Carolina, Virginia, Maryland, Delaware, New York and New Jersey declared emergencies to free up resources, and authorities all the way to New England urged residents in low-lying areas to gather supplies and learn the way to a safe location.
Irene was expected to come ashore Saturday in North Carolina with 115 mph winds and a storm surge of 5 to 10 feet. Warnings were out for the entire coast. It could dump a foot of rain, with as much as 15 inches falling in some places along the coast and around Chesapeake Bay.
With heavy rain and storm surge predicted for the nation's capital, organizers postponed Sunday's dedication of the Martin Luther King Jr. Memorial on the National Mall.
Already in South Florida near West Palm Beach, authorities blame the rough ocean churned up by the outer bands of Irene for injuring eight people when a wave knocked them off a jetty.
Scientists predict Irene will chug up the coast. Some forecasts showed it taking dead aim at New York City, with its eye passing over Brooklyn and Manhattan before weakening and trudging through New England.
If the storm strikes New York, it will probably be a Category 1 or 2, depending on its exact track, hurricane specialist John Cangialosi said.
Hurricanes are rare in the Northeast because the region's cooler seas tend to weaken storms as they approach, and they have to take a narrow track to strike New York without first hitting other parts of the coast and weakening there.
Still, strong storms have been known to unleash serious damage in an urban environment already surrounded by water.
A September 1821 hurricane raised tides by 13 feet in an hour and flooded all of Manhattan south of Canal Street — an area that now includes the nation's financial capital. An infamous 1938 storm dubbed the Long Island Express came ashore about 75 miles east of the city and then hit New England, killing 700 people and leaving 63,000 homeless.
On Thursday, Ocean City, Md., officials ordered thousands of residents and tourists to abandon the beach community.
"This is not a time to get out the camera and sit on the beach and take pictures of the waves," said Maryland Gov. Martin O'Malley.
Earlier in North Carolina, coastal counties issued evacuation orders covering more than 200,000 people, including tourists and full-time residents. President Barack Obama declared an emergency for the state, allowing for federal help.
Dania Armstrong of New York sat outside a motel smoking a cigarette while she waited for her family to get ready. Armstrong, her daughter and grandchildren had already been ordered off the island of Ocracoke and planned to leave the town of Buxton soon.
"I've been coming down here for 50 years," she said. "I know what's coming. It's time to leave. You don't want to be here when it hits."
John Robeson, an accountant from New Jersey, brought his wife and two children down for a week, but they were cutting the trip short after three days.
"I'm disappointed," he said as he loaded his car. "You wait all year. Talk about it. Make plans for your vacation. And now this. It's a bad break."
Other year-round residents planned to ride it out, despite warnings from authorities that they will be on their own immediately after the storm.
"If you leave, you can't get back for days because of the roads, and you don't know what's going on with your property," said Kathy MacKenzie, who works at Dillon's Corner, a general store in Buxton.
Ollie Jarvis, the store's owner, said he's staying and preparing for the worst. During Hurricane Emily in 1993, his store was flooded with 18 inches of water and sand from a storm surge. Like a spear, the water pushed a T-shirt rack filled with clothes through the ceiling. They still have the high-water mark on a wall near the cash register.
"I can't leave. You have to worry about the stuff you have. You have to save what you can," he said.
Bobby Overbey of Virginia Beach, Va., pulled into a gas station in his Jeep with two surfboards hanging on the back. He planned to stay, despite the evacuation orders.
Usually the waves top out at 2 to 3 feet. On Thursday, he was riding 4- and 5-foot waves.
"You live for this," he said.
Farmers grimly accepted the fate of their crops. Strong winds and widespread flooding could mean billions of dollars in losses for corn, cotton, soybean, tobacco and timber growers. While most farmers have disaster insurance, policies often pay only about 70 percent of actual losses.
Wilson Daughtry owns Alligator River Growers near Engelhard, near Pamlico Sound. Though he is under a mandatory evacuation order, Daughtry and his workers planned to stay to salvage what corn and squash they can.
He said he's lost count of how many times his crops have been wiped out by storms.
"Hurricanes are just part of doing business down here," he said.
In Virginia, officials recalled Hurricane Isabel in 2003, which came ashore as a Category 1, killed more than 30 people and caused more than $1 billion in property damage. The low-lying Hampton Roads region is at high risk of flooding from storm surge and heavy rains. Widespread power outages are likely.
The Navy ordered many of its ships at Norfolk Naval Station out to sea to wait out the storm, including the aircraft carrier USS Dwight Eisenhower, as well as destroyers and submarines.
Gearing up for approaching hurricanes is an almost annual occurrence in coastal North Carolina and Virginia, so planning is extensive and almost second-nature.
Building codes along the Outer Banks require structures to be reinforced to withstand sustained winds of up to 110 mph and gusts up to 130 mph. Houses close to the water must be elevated on pilings to keep them above storm surges, and required setbacks preserve sand dunes to provide additional protection.
It could be a different story as the storm moves up the coast.
In Washington, where residents were rattled by a rare earthquake Tuesday, officials warned people to be prepared for stormy conditions regardless of Irene's exact path and to stay away from the beaches in the region.
The Philadelphia area could get more than a half-foot of rain, accompanied by sustained winds up to 50 mph. Mayor Michael Nutter said it could be the worst storm in at least 50 years. August has already been one of the rainiest months in city history.
New Jersey Gov. Chris Christie asked all visitors to the shore to get out by midday Friday. He said Irene was poised to be a "serious, significant event," with flooding a threat across the entire state. A mandatory evacuation was ordered for Cape May County.
In a normal hurricane, tropical storm-force winds extend about 150 miles from the eye. Irene's winds extend nearly 250 miles.
Another worry is that the ground is already saturated in the Northeast after a wet spring and summer. That means trees and power lines will be more vulnerable to winds, like during Hurricane Isabel, Mayfield said.
New York is especially susceptible with its large subway network and the waterways around the city, Mayfield said.
"In many ways, a Category 2 or stronger storm hitting New York is a lot of people's nightmare," said Susan Cutter, director of the Hazards and Vulnerability Research Institute at the University of South Carolina.
High water in the harbor and rivers, along with a high tide at the end of the month because of the new moon, could cause serious flooding. New York's three airports are close to the water, putting them at risk, too, Cutter said.
And if the storm shifts further to the west, placing New York City on the stronger right-hand quadrant of the storm, "that is what's going to push this wall of water into the bays and the Hudson River."
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Borenstein reported from Washington. Associated Press writers Patrick Walters in Philadelphia, Beth DeFalco in Ewing, N.J., and Michael Biesecker in Raleigh, N.C., also contributed to this report.
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