People line up outside a Home Depot for a new supply of generators and plywood in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
People line up outside a Home Depot for a new supply of generators and plywood in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
Paula Baker carries flowers she'll leave on her son's grave that she plans on visiting after evacuating her home in Atlantic Beach, N.C. as Hurricane Florence approaches the east coast. Picture: David Goldman/AP
Paula Baker carries flowers she'll leave on her son's grave that she plans on visiting after evacuating her home in Atlantic Beach, N.C. as Hurricane Florence approaches the east coast. Picture: David Goldman/AP
Sarah Dankanich, right, removes an "out of service" wrapper from a gas pump as her husband, Bryan Dankanich, left, prepares to pump gas in cans in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
Sarah Dankanich, right, removes an "out of service" wrapper from a gas pump as her husband, Bryan Dankanich, left, prepares to pump gas in cans in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
As store windows are prepped with plywood a couple waits for their automobile in Nags Head, N.C. Picture: Gerry Broome/AP
As store windows are prepped with plywood a couple waits for their automobile in Nags Head, N.C. Picture: Gerry Broome/AP
Crews board up the Oceanic restaurant in Wrightsville Beach, N.C., in preparation for Hurricane Florence.  Picture: Matt Born/The Star-News via AP
Crews board up the Oceanic restaurant in Wrightsville Beach, N.C., in preparation for Hurricane Florence. Picture: Matt Born/The Star-News via AP
Mickey Manes, right, and Diane Manes, left, load plywood into their truck in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
Mickey Manes, right, and Diane Manes, left, load plywood into their truck in advance of Hurricane Florence in Wilmington, N.C. Picture: Chuck Burton/AP
Wrightsville Beach Police officers check identification at the bridge to Wrightsville Beach, N.C. The island closed to non-residents at 8 a.m. The effects of Hurricane Florence in Southeastern North Carolina are expected to begin Thursday. Picture: Matt Born/The Star-News via AP
Wrightsville Beach Police officers check identification at the bridge to Wrightsville Beach, N.C. The island closed to non-residents at 8 a.m. The effects of Hurricane Florence in Southeastern North Carolina are expected to begin Thursday. Picture: Matt Born/The Star-News via AP

Wilmington, North Carolina - Fears about Hurricane Florence spread south on Wednesday, with Georgia declaring a state of emergency after officials in the Carolinas urged people to evacuate the coast ahead of the storm's expected pounding winds and rain-driven floods.

Florence weakened slightly to a Category 3 storm on a five-step scale but had maximum sustained winds of 125 miles per hour (201 km per hour) as of 2 p.m. EDT (1800 GMT), down from 130 mph earlier in the day. Its trajectory showed its center most likely to strike the southern coast of North Carolina by late Thursday or early Friday, the National Hurricane Center said.

Updated NHC forecasts showed the storm lingering near the coast of the Carolinas, carrying days of heavy rains that could bring intense inland flooding from South Carolina to Virginia. Parts of North Carolina could get 40 inches (1 meter) of rain.

Jeff Byard of the Federal Emergency Management Agency (FEMA) invoked a former boxing champion to warn residents that Florence would bring "a Mike Tyson punch to the Carolina coast."

"Heed the warnings," said Byard, adding there was "well over $20 billion" in FEMA's disaster relief fund.

North Carolina Governor Roy Cooper predicted tens of thousands of homes and businesses would be flooded in his state.

Georgia Governor Nathan Deal, concerned the storm would bring its devastation south, issued an emergency declaration for all 159 counties in his state.

More than 1 million people have been ordered to evacuate the coastlines of the Carolinas and Virginia while schools and factories were being shuttered.

The NHC said the first tropical storm-force winds of at least 39 mph (63 kph) would hit the region early on Thursday with the storm's center reaching the coast Friday.

Emergency preparations in the area included activating 2,800 National Guard troops in North Carolina, stockpiling food, setting up shelters, switching traffic patterns so that major roads led away from shore and securing 16 nuclear reactors in the three-state region.

Wilmington, North Carolina, just north of where the hurricane is expected to come ashore, was sunny around midday on Wednesday as the town appeared to be emptying.

"I'm not approaching Florence from fear or panic," said Brad Corpening, 35, who planned to ride out the storm in his boarded-up delicatessen in Wilmington. "It's going to happen. We just need to figure out how to make it through."

Officials in New Hanover County, which includes Wilmington, have stockpiled enough food and water for 60,000 people for four days, along with more than 28,000 tarps. Shelters in the city were filling and some people were being bused inland to Raleigh.

"It's going to be bad," said Woody White, chairman of the New Hanover County Commissioners. "But no matter how bad it's going to be, it will pass and our job will be to rebuild this community together, and that's what we're going to do."

Even miles away from the Atlantic, North Carolina residents in low-lying areas are boarding up and emptying stores. "A lot of our storefronts are boarded up," said Lynn Davis, town manager for Belhaven which sits at sea level in northeastern North Carolina. "People are taking down awnings and U-Haul trucks have come in and take the entire contents of stores."