Michael charges into Southeast after slamming north Florida

Shredded trees, derailed train cars and a sunken trailer are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018

Shredded trees, derailed train cars and a sunken trailer are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018

Derailed box cars are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo/Gerald Herbert)

Derailed box cars are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo/Gerald Herbert)

The Oceanis is grounded by a tidal surge at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm wa

The Oceanis is grounded by a tidal surge at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm wa

Storm Surge retreats from inland areas, foreground, where boats lay sunk and damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St.

Storm Surge retreats from inland areas, foreground, where boats lay sunk and damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St.

Haley Nelson inspects damages to her family properties in the Panama City, Fla., spring field area after Hurricane Michael made landfall in Florida's

Haley Nelson inspects damages to her family properties in the Panama City, Fla., spring field area after Hurricane Michael made landfall in Florida's

Brian Bon inspects damages in the Panama City downtown area after Hurricane Michael made landfall in Panama City, Fla., Wednesday, Oct. 10, 2018. Supe

Brian Bon inspects damages in the Panama City downtown area after Hurricane Michael made landfall in Panama City, Fla., Wednesday, Oct. 10, 2018. Supe

This photo shows a McDonald's restaurant damaged after Hurricane Michael went through the area in Panama City, Fla., Wednesday, Oct. 10, 2018. Superch

This photo shows a McDonald's restaurant damaged after Hurricane Michael went through the area in Panama City, Fla., Wednesday, Oct. 10, 2018. Superch

Boats lay sunk and damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm waters in the Gu

Boats lay sunk and damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm waters in the Gu

A marina warehouse is damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm waters in the

A marina warehouse is damaged at the Port St. Joe Marina, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormally warm waters in the

Kaylee O'Brian cries as she's unable to find her cat after several trees fell on her now-destroyed home during Hurricane Michael in Panama City, Fla.,

Kaylee O'Brian cries as she's unable to find her cat after several trees fell on her now-destroyed home during Hurricane Michael in Panama City, Fla.,

Kaylee O'Brian weeps inside her home after several trees fell on it during Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo

Kaylee O'Brian weeps inside her home after several trees fell on it during Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo

Port St. Joe Lodge No. 111 lay in ruins after Hurricane Michael made landfall, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormal

Port St. Joe Lodge No. 111 lay in ruins after Hurricane Michael made landfall, Wednesday, Oct. 10, 2018 in Port St. Joe, Fla. Supercharged by abnormal

Megan Williams, left, and roommate Kaylee O'Brian take belongings from their destroyed home after several trees fell on the house during Hurricane Mic

Megan Williams, left, and roommate Kaylee O'Brian take belongings from their destroyed home after several trees fell on the house during Hurricane Mic

A man walks in the street of his heavily damaged neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. Su

A man walks in the street of his heavily damaged neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. Su

People walk through downed trees in a heavily damaged neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 201

People walk through downed trees in a heavily damaged neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 201

Tamiya Waldon looks out at the damage to her neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Ph

Tamiya Waldon looks out at the damage to her neighborhood in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Ph

Dorian Carter looks under furniture for a missing cat after several trees fell on their home during Hurricane Michael in Panama City, Fla., Wednesday,

Dorian Carter looks under furniture for a missing cat after several trees fell on their home during Hurricane Michael in Panama City, Fla., Wednesday,

Pam Heckstall surveys the damage as the remnants of Hurricane Michael move through Panama City, Fla., Wednesday, Oct. 10, 2018. She is not able to lea

Pam Heckstall surveys the damage as the remnants of Hurricane Michael move through Panama City, Fla., Wednesday, Oct. 10, 2018. She is not able to lea

Pine trees litter a yard in Port St. Joe, Fla., on Garrison Avenue on Wednesday, Oct. 10, 2018, after Hurricane Michael made landfall in the Florida P

Pine trees litter a yard in Port St. Joe, Fla., on Garrison Avenue on Wednesday, Oct. 10, 2018, after Hurricane Michael made landfall in the Florida P

Hurricane Michael formed off the coast of Cuba carrying major Category 4 landfall in the Florida Panhandle. Surge in the Big Bend area, along with cat

Hurricane Michael formed off the coast of Cuba carrying major Category 4 landfall in the Florida Panhandle. Surge in the Big Bend area, along with cat

James Prescott surveys the damage as the remnants of Hurricane Michael move through Panama City, Fla., Wednesday, Oct. 10, 2018. He was visiting a fri

James Prescott surveys the damage as the remnants of Hurricane Michael move through Panama City, Fla., Wednesday, Oct. 10, 2018. He was visiting a fri

Hurricane Michael formed off the coast of Cuba carrying major Category 4 landfall in the Florida Panhandle. Surge in the Big Bend area, along with cat

Hurricane Michael formed off the coast of Cuba carrying major Category 4 landfall in the Florida Panhandle. Surge in the Big Bend area, along with cat

Derailed box cars are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo/Gerald Herbert)

Derailed box cars are seen in the aftermath of Hurricane Michael in Panama City, Fla., Wednesday, Oct. 10, 2018. (AP Photo/Gerald Herbert)

PANAMA CITY, Fla. (AP) — Hurricane Michael's battering waves swamped streets and docks and shrieking winds splintered trees and rooftops. The most powerful hurricane on record to hit Florida's Panhandle left widespread destruction and wasn't finished Thursday as it crossed Georgia toward the Carolinas, a region still reeling from epic flooding in Hurricane Florence.

Authorities say at least one person died, a man hit by a falling tree on a Panhandle home.

The supercharged storm crashed ashore Wednesday afternoon amid beach resorts and coastal communities, a Category 4 monster packing 155 mph (250 kph) winds. Downgraded to a tropical storm early Thursday over south Georgia, it was weakening by the hour. But it's still menacing the Southeast with heavy rains, winds and a threat of spinoff tornadoes.