The string of islands was the first part of the state hit by the storm, and were still without water, power or cell service Monday. By Monday afternoon, its winds were down to 60 miles per hour (97 kph).
Clem says the man's wife called 911 saying he suffered a heart attack, and first responders found his body lodged between two beams on the shed's roof with debris on top of him.
"The threat of catastrophic storm surge flooding is highest along the southwest coast of Florida, where 10 to 15 feet of inundation above ground level is expected", the National Hurricane Centre said.
Irma continued its slog through Florida, while its outer bands were blowing wind and rain into Georgia.
She said her family members in Naples didn't realize the severity of the storm until it was too late.
Sgt. Chris Lynne and James Tanner Schaill became trapped after they had dropped off an elderly patient at the hospital. Firefighters and National Guardsmen went door-to-door and used boats to ferry families to safety. No injuries have been reported.
Miami International Airport reopened Monday evening, and Fort Lauderdale-Hollywood International airport opened on Tuesday morning.
"It's so dark in here", he said.
- More than 3 million electric customers are without power across Florida, according to utility companies. More than 100,000 were in the dark in Georgia.
The South Carolina Captive Insurance Association has postponed its conference scheduled for this week to December due to Hurricane Irma, which approached the state Monday as a tropical storm.
The storm had killed three people when it struck the southern Florida Keys island chain as a more powerful Category Four on Sunday.
As Trump landed in Marine One on the South Lawn of the White House, Hurricane Irma was making landfall on the western coast of Florida.
Irma was expected to reach the heavily populated Tampa-St.
Hurricane Irma was downgraded to a tropical storm as she passed through northern Florida. The wind and rainfall in SC led to at least one death, downed numerous power lines and spawned several tornadoes.
"We have no electricity, at least in this pat of Key West, we have no water, we have no internet service", Dave Gonzales, the museum's curator, said on MSNBC Sunday night. "The surge is yet to be finished".
Neighborhoods like Naples under water. Firefighters rescued a puppy from one of the homes there and leashed the anxious dog to the front of one of their trucks to give it water and snacks.
Up and down the wide, sandy beaches of Pinellas County are traditional "old Florida" waterfront hotels such as the Don Cesar, a coral pink 1920s hotel on St. Pete Beach, which was closed by the storm.
Some 6.3 million people in Florida had been told to evacuate.
FPL said it expects to restore essentially all of its customers in the eastern portion of the state by the weekend and the harder-hit western portion Florida by September 22.
The hashtag "Recover813" is being utilized on social media to help officials see the scale of damage caused by the storm. It doesn't mean it doesn't exist.
"We're also identifying chaplains on the East Coast who have volunteered for Harvey, to redirect them to Irma, because we've had such an overwhelming response from our chaplains", said Jack Munday, worldwide director of the Rapid Response Team.
In the low-lying Keys, boats were reported sunk and appliances and furniture were seen floating away, but the full extent of Irma's fury there was not clear. Authorities were set to begin house-to-house searches Monday to check on survivors.