0113 GMT December 12, 2018
At least 12 people were killed in Florida, Georgia, North Carolina and Virginia, officials said, after one of the most powerful hurricanes in US history slammed into Florida's northwest coast, Reuters reported.
"I expect the fatality count to climb today and tomorrow," Brock Long, head of the Federal Emergency Management Agency (FEMA), told CNN. "Hopefully it doesn't rise dramatically but it does remain a possibility."
Michael came ashore on Wednesday near the small Panhandle town of Mexico Beach with top sustained winds of 155 miles per hour (250km per hour), pushing a wall of seawater inland and causing widespread flooding.
Long urged communities such as Mexico Beach, where many homes were obliterated by 12 to 14 feet (3.7 to 4.3 meters) of storm surge, to rebuild to withstand future storms.
"It’s OK if you want to live on the coast or on top of a mountain that sees wildfires or whatever but you have to build to a higher standard," he said. "If we’re going to rebuild, do it right."
Michael weakened as it charged over the southeastern United States, but still carried high winds and delivered drenching rains to Georgia, the Carolinas and Virginia, causing flooding. By early Friday morning it had moved into the Atlantic Ocean northeast of Norfolk, Virginia, the National Hurricane Center said.
Almost 1.1 million homes and businesses were without power from Florida to Virginia early on Friday, according to utility companies.
The storm, which came ashore as a Category 4 on the five-step Saffir-Simpson hurricane scale, tore entire neighborhoods in the Panhandle apart, reducing homes and businesses to piles of wood and siding, damaging roads and leaving scenes of devastation.
Rescuers from FEMA used dogs, drones and GPS in the search for survivors.
"We prepare for the worst and hope for the best. This is obviously the worst," said Stephanie Palmer, a FEMA firefighter and rescuer from Coral Springs, Florida.
Many of the injured in Florida were taken to hard-hit Panama City, 20 miles (32 km) northwest of Mexico Beach.
As Michael pushed northeast, emergency services carried out dozens of rescues of people caught in swiftly moving floodwaters in North Carolina on Thursday.
The number of people in emergency shelters was expected to swell to 20,000 across five states by Friday, said Brad Kieserman of the American Red Cross.
Brad Rippey, a meteorologist for the US Agriculture Department, said Michael severely damaged cotton, timber, pecan and peanut crops, causing estimated liabilities as high as $1.9 billion and affecting up to 3.7 million crop acres (1.5 million hectares).
Michael also disrupted energy operations in the US Gulf of Mexico as it approached land, cutting crude oil production by more than 40 percent and natural gas output by nearly a third as offshore platforms were evacuated.
With a low barometric pressure recorded at 919 millibars, a measure of a hurricane's force, Michael was the third strongest storm on record to hit the continental United States, behind only Hurricane Camille on the Mississippi Gulf Coast in 1969 and the Labor Day hurricane of 1935 in the Florida Keys.