Trump and first lady Melania Trump passed out bottles of water at an aid centre in Lynn Haven, a city of about 18,500 people near Panama City in northwestern Florida, after taking a helicopter flight from Eglin Air Force Base about 100 miles (160km) to the west.
“To see this personally is very tough – total devastation,” said Trump, who later traveled to neighbouring Georgia to see storm damage there.
At least 18 deaths in four states have been blamed on Michael, which crashed into the Panhandle last Wednesday as one of the most powerful storms on record to hit the continental United States.
Thousands of rescuers, including volunteers, are still combing remote areas of the Florida Panhandle for those reported missing.
Between 30 and 40 people remained unaccounted for in Mexico Beach, according to Councillor Rex Putnal. The town of about 1,200 residents took a direct hit from the hurricane, and at least one person died there, according to the mayor.
With most Mexico Beach homes already searched for survivors, rescue workers began using cadaver dogs to try to recover any human remains that might be buried under debris.
“The next phase is recovery,” Ignatius Carroll, a Miami fire captain who leads a Federal Emergency Management Agency rescue team, said by phone as he combed through wreckage. “We start using the dogs for larger rubble piles that were created by the storm.”
About 200,000 people remained without power in the U.S. Southeast, with residents cooking with fires and barbecue grills during daylight in hard-hit coastal towns such as Port St. Joe, Florida.
Insured losses for wind and storm surge from Hurricane Michael will run between an estimated US$6 billion (RM25 billion) and US$10 billion, risk modeller AIR Worldwide said. Those figures do not include losses paid out by the National Flood Insurance Program or uninsured property, AIR Worldwide said.
With top sustained winds of 155mph (250kmh), Michael hit the Florida Panhandle as a Category 4 hurricane on the five-step Saffir-Simpson scale.
Rescue efforts have been hampered by roads choked with downed trees after coastal woodlands and forests were uprooted by the storm.
Water service was restored to some in Panama City on Monday but Bay County officials said it was not yet safe to drink. Homeowners were advised to keep toilet flushes to a minimum because the sewer system was operating only at half capacity.
The Florida Division of Emergency Management said that while power was returning in most areas, at least 85% of customers in four mainly rural Panhandle counties were without electricity on Monday. Officials said it could be weeks before power returns to the most-damaged areas.
“We’re living in the daylight, and living in the dark once night gets here,” said Port St. Joe Mayor Bo Patterson, whose town of 3,500 was without power.
About 11 miles (18km) away in Mexico Beach, Putnal, the local councillor, gave out water and food to shell-shocked residents. His home was destroyed.
“I’ve got a concrete slab left, but it’s OK, I’m alive,” said Putnal, who said he had been helping survivors on Monday and could only give a rough estimate on the number of missing. “I love this place, we’ll fix it.”