MIAMI (AP) — The Latest on Hurricane Florence (all times local):

11 a.m.

Forecasters say Hurricane Florence is expected to steadily slow down as it makes its way toward the East Coast.

At 11 a.m., the storm was centered 485 miles (785 km) southeast of Wilmington, North Carolina, moving at 15 mph (24 kph).

It's a potentially catastrophic Category 4 storm with 130 mph (215 kph) maximum sustained winds.

Some strengthening is forecast through Wednesday night, drawing energy from the warm water. Its winds could approach Category 5 strength, which means winds of 157 mph (253 kph) or higher.

Florence is the most dangerous of three tropical systems in the Atlantic. Tropical Storm Isaac was expected to pass south of Puerto Rico, Hispaniola and Cuba. Hurricane Helene was expected to weaken over the eastern Atlantic. Forecasters also were tracking two other disturbances.

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10:45 a.m.

Forecasters said Wednesday that Florence's wind field is expanding, making it a large, stable hurricane with a clearly defined eye at its center.

National Hurricane Center Director Ken Graham warns that a slight shift in Florence's forecast track does not mean that some communities north of the storm are now in the clear.

The "cone of error" in the forecast track only predicts where the storm's center might go, and even on its edges, winds can push a powerful storm surge into shore dozens of miles from where Florence's eyewall strikes land.

As Graham says, "just because you have a landfall to your south doesn't mean you're out of the woods, because the winds are huge around this system."

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10:30 a.m.

The Homeland Security Department is pushing back against a Democratic U.S. senator's claim that the Trump administration transferred nearly $10 million from the government's disaster relief agency to immigration enforcement.

Sen. Jeff Merkley of Oregon said the administration was taking money from FEMA's "response and recovery" to the Immigration and Customs Enforcement agency at a time when Hurricane Florence is bearing down on the Southeast U.S. coast.

But DHS officials said the money was transferred from unspent operational accounts for training, office supplies and headquarters costs. That funding cannot be spent on disaster response, they said. FEMA's annual budget is about $15 billion.

Merkley provided no evidence for his suggestion that the money came from hurricane response funds.

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9:30 a.m.

Jeff Byard of the Federal Emergency Management Agency said it was imperative locals heed the evacuation warnings.

He says the time to flee Hurricane Florence is now. Landfall was expected sometime late Thursday and FEMA officials said Wednesday was the last day for people to get out safely.

"Today's the day," he said. "It's time for our citizens to be a part of the team. Heed those warnings and evacuate if you're in one of the zones."

Byard told a news conference at FEMA headquarters in Washington that the agency has all the resources it needs to react to the natural disaster.

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9:20 a.m.

The National Hurricane Center and computer models have shifted the forecast track for Hurricane Florence noticeably to the south and west, but it doesn't mean northern North Carolina, Virginia and other mid-Atlantic states are in the clear.

The official track has Florence hovering off the southern North Carolina coast from Thursday night until landfall Saturday morning or so, then veering south through South Carolina and Georgia into Monday.

Meteorology director Jeff Masters at the private Weather Underground says Florence will come "roaring up to the coast Thursday night and say 'I'm not sure I really want to do this, and I'll just take a tour of the coast and decide where I want to go inland.'"

If these projections hold, University of Miami hurricane researcher Brian McNoldy says "it's exceptionally bad news, as it smears a landfall out over hundreds of miles of coastline, most notably the storm surge." McNoldy says "the rainfall has been and continues to be a very substantial threat over the entire area."

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8:55 a.m.

The mayor of a South Carolina city in the path of powerful Hurricane Florence is warning citizens to get out or stay "at your own peril."

Charleston Mayor John Tecklenburg told CNN on Wednesday that the nearly 135,000 residents of his historic coastal city should leave now before the storm arrives later in the week.

Gov. Henry McMaster has ordered evacuations in counties along the state's coast, including Charleston. All lanes of Interstate 26 are westbound to allow more people to leave the coast and head inland toward the state capital of Columbia.

Tecklenburg said his flood-prone city is preparing for "copious rain" by clearing out the city's drainage system and getting boats and portable pumps ready. Many areas in the low-lying city flood with routine rain storms, causing street closures and detours.

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8:30 a.m.

The National Weather Service says Hurricane Florence "will likely be the storm of a lifetime for portions of the Carolina coast."

That's saying a lot, given the impacts from Hurricanes Diana, Hugo, Fran, Bonnie, Floyd, and Matthew.

Forecasters in Wilmington, North Carolina, are emphasizing the potential for what they're calling "unbelievable damage from wind, storm surge, and inland flooding."

With predicted rainfall measured in feet not inches, forecasters say people living along creeks and rivers in the Carolinas should move to higher ground well ahead of the storm's arrival.

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8 a.m.

The 8 a.m. forecast on Hurricane Florence reinforces projections that the storm's path will shift slightly to the southeast as it closes in on the Carolinas.

The center of the Category 4 Hurricane, still swirling with top winds of 130 mph (215 kph), was about 530 miles (855 kilometers) southeast of Cape Fear, North Carolina, approaching the coast at 17 mph (28 kph).

National Hurricane Center Director Ken Graham says damaging winds and rain could begin hitting the coast late Thursday, pushing a storm surge that could reach 13 feet in places. Rain will continue through Sunday, dumping feet of water over a wide area.

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5:00 a.m.

A dangerous Hurricane Florence is steadily making its way to the U.S. East Coast.

At 5 a.m., the storm was centered 575 miles (925 km) southeast of Cape Fear, North Carolina, moving at 17 mph (28 kph). Strengthening is forecast through Wednesday.

It was a potentially catastrophic Category 4 storm but was expected to keep drawing energy from the warm water and intensify to near Category 5, which means winds of 157 mph (253 kph) or higher.

President Donald Trump declared states of emergency for North and South Carolina and Virginia, opening the way for federal aid.

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2:20 a.m.

The National Hurricane Center says Hurricane Florence is expected to bring life-threatening storm surge and rainfall to portions of the Carolinas and mid-Atlantic states.

At 2 a.m., the storm was centered 625 miles (1,005 km) southeast of Cape Fear, North Carolina, moving at 17 mph (28 kph). Strengthening is forecast through Wednesday. It was a potentially catastrophic Category 4 storm but was expected to keep drawing energy from the warm water and intensify to near Category 5, which means winds of 157 mph (253 kph) or higher.

Forecasters say the center of Florence will move over the southwestern Atlantic Ocean between Bermuda and the Bahamas on Wednesday, and approach the coast of the Carolinas in the hurricane warning area on Thursday and Friday.

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11 p.m.

Residents on the Carolina coast are finding empty gas pumps and depleted store shelves as they flee a potentially devastating blow from Hurricane Florence.

With the storm churning across the Atlantic with 140 mph winds, hurricane watches and warnings include the homes of more than 5.4 million people on the East Coast. A steady stream of vehicles filled with people and belongings is moving inland.

Forecasters say Florence is expected to blow ashore late Thursday or early Friday, then slow down and dump 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.

President Donald Trump declared states of emergency for North and South Carolina and Virginia, opening the way for federal aid.

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