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Hurricane Florence: 'This One Really Scares Me,' Forecaster Says

Hurricane Florence is expected to reach the Carolinas and Virginia late this week. The storm is extending hurricane-force winds up to 60 miles from its center, the National Hurricane Center says.
National Weather Service
Hurricane Florence is expected to reach the Carolinas and Virginia late this week. The storm is extending hurricane-force winds up to 60 miles from its center, the National Hurricane Center says.

Updated at 6:15 a.m. ET on Wednesday

The severity of Hurricane Florence, a Category 4 storm, is intensifying and triggering hurricane warnings along the coasts of the Carolinas, the National Hurricane Center announced in its 5 a.m. Wednesday update.

Everyone "from South Carolina into the Mid-Atlantic region should ensure they have their hurricane plan in place and follow any advice given by local officials," the hurricane center urgedahead of Florence's expected landfall on Thursday or Friday. The latest warning extends from South Santee River, S.C., to Duck, N.C., and the Albemarle and Pamlico Sounds, in North Carolina.

"Dangerous Florence," as the official update calls it, is highly likely to bring with it life-threatening storm surges and catastrophic flash flooding, and damaging hurricane-force winds across vast stretches of South Carolina and North Carolina. Damaging winds could also spread well inland in those states and into Virginia, the hurricane center said.

"Let me tell you, this one really scares me," National Hurricane Center Director Ken Graham said in a Facebook video earlier on Tuesday. Citing his 24 years in the National Weather Service, Graham added, "It's one of those situations, you're going to get heavy rain, catastrophic life-threatening storm surge ... and also the wind. Now's the time to prepare."

Florence is packing maximum sustained winds near 130 mph, with higher gusts — and it's getting both larger and better-organized, the hurricane center said. Its hurricane-force winds extend up to 60 miles from the storm's center.

At 5 a.m. ET on Wednesday, Florence was 575 miles east of Cape Fear, N.C., moving west-northwest at 17 mph.

Florence is expected to hit the Carolinas and Virginia on Thursday or early Friday, prompting evacuation orders for more than a million people. It's currently predicted to make landfall somewhere north of Wilmington, N.C., before its center heads inland toward the cities of Raleigh and Durham.

The large and powerful hurricane prompted evacuation orders in North and South Carolina and Virginia — all of which have already declared states of emergency. Officials are urging residents in coastal and low-lying areas to prepare for strong winds, a deep storm surge and a very prolonged deluge of rainfall.

"People need to leave now before they can't," North Carolina Gov. Roy Cooper said. "People are doing a pretty good job currently. We want to make sure people understand that people should not ride Hurricane Florence out."

President Trump met with federal disaster officials at the White House on Tuesday. "We've never seen anything quite like this, on the East Coast at least," he said, according to Reuters. "I would say everybody should get out. ... It's going to be really, really bad along the coast."

He said Congress would be generous with disaster relief funding. "Any amounts of money, whatever it takes, we're going to do it."

The storm will pick up additional strength as it passes over ocean water with sea surface temperatures of up to 85 degrees, the National Hurricane Center said. It will possibly weaken somewhat as it nears land — but that will hardly change the flooding threat.

The National Hurricane Center said: "Life-threatening, catastrophic flash flooding and significant river flooding is possible over portions of the Carolinas and Mid-Atlantic states from late this week into early next week, as Florence is expected to slow down as it approaches the coast and moves inland."

Even before it officially arrives, Florence will push tall waves far ahead of it.

"We're talking 12-foot seas stretching 300 miles away from the center," the NHC's Graham said. The large storm is also projecting tropical storm-force winds outward up to 170 miles. When it reaches inland ares, far from the coast, its high winds and heavy rains will knock down trees and wreak other havoc, according to the hurricane center.

"All the rainfall we're going to have, plus you talk about the wind — that means a lot of trees coming down, it's a lot of power outages, a lot of impacts with this system," Graham said.

The hurricane watch notice is significant because it signals the opening of a 48-hour window for the expected first arrival of tropical storm-force winds. After that point, it would be difficult for people in the storm's path to either finish preparations or flee affected areas.

On Tuesday afternoon, data from an Air Force Reserve hurricane hunter aircraft showed that Florence's sustained winds had picked up in speed again, hovering close to 140 mph. The storm is expected to strengthen again over the next day or so.

If it makes landfall as predicted, Florence could become the northernmost Category 4 hurricane to hit the U.S. since records were first kept in 1851. It's expected to strike far north of where Hurricane Hazel arrived, close to the South Carolina/North Carolina border, in October 1954.

In addition to strong winds, Florence brings the threat of a devastating storm surge — as high as 9 to 13 feet in the area from Cape Fear, N.C., to Cape Lookout, N.C.

"Prolonged and exceptionally heavy" rains will also inundate parts of the coast and inland areas, the National Hurricane Center said. "Florence is expected to produce total rainfall accumulations of 15 to 20 inches with isolated maxima to 30 inches near Florence's track over portions of North Carolina, Virginia and northern South Carolina through Saturday. This rainfall may produce life-threatening flash flooding."

The storm is expected to stall over North Carolina, slowly making its way across the state and into southwestern Virginia over the weekend. The hurricane center predicts a "heavy rainfall event, which may extend inland over the Carolinas and Mid-Atlantic for hundreds of miles."

Overnight, Florence went through an "eyewall replacement cycle," senior hurricane specialist Stacy Stewart said in an update from the hurricane center on Tuesday.

"That's good news and bad news," he said. "It's weakened, but unfortunately, the eye has expanded out to a diameter now of about 30-35 nautical miles."

Stewart added, "We're going to have a fairly stable, powerful hurricane with the potential for some additional slow strengthening over about the next 24 hours."

According to the Saffir-Simpson Hurricane Wind Scale, people caught in a Category 4 storm can expect to see "catastrophic damage." From the official guideline:

"Well-built framed homes can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Most trees will be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last weeks to possibly months. Most of the area will be uninhabitable for weeks or months."

A Category 4 storm has sustained winds from 130 to 156 mph. If Florence weakens enough to arrive as a Category 3 storm, it would likely be near the upper limit of that classification. At that level, it would still cause "devastating damage," according to the Saffir-Simpson scale.

But while wind speed offers an easily quantifiable way to rate dangerous storms, forecasters are warning people not to fixate on that, saying that saltwater from the storm surge and freshwater from heavy rains pose a serious threat, no matter what the top winds are when the hurricane makes landfall.

In addition to Florence, the Atlantic Ocean currently has two other strong storms. Tropical Storm Isaac is heading westward toward the central Lesser Antilles, but is a bit weaker, with Guadeloupe, Martinique and Dominica now under tropical storm, not hurricane, warnings.

Farther to the east, Hurricane Helene is currently a Category 2 storm, but it's expected to curve harmlessly northward and weaken in the central Atlantic.

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Bill Chappell is a writer and editor on the News Desk in the heart of NPR's newsroom in Washington, D.C.
Vanessa Romo is a reporter for NPR's News Desk. She covers breaking news on a wide range of topics, weighing in daily on everything from immigration and the treatment of migrant children, to a war-crimes trial where a witness claimed he was the actual killer, to an alleged sex cult. She has also covered the occasional cat-clinging-to-the-hood-of-a-car story.
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